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19-2021; Rev 2; 2/03
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
General Description
The MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 family of micropower op amps operate from a single +1.8V to +5.5V supply and draw only 750nA of supply current. The MAX4470 family feature ground-sensing inputs and Rail-to-Rail (R) output. The ultra-low supply current, low-operating voltage, and rail-to-rail output capabilities make these operational amplifiers ideal for use in single lithium ion (Li+), or two-cell NiCd or alkaline battery systems. The rail-to-rail output stage of the MAX4464/MAX4470/ MAX4471/MAX4472/MAX4474 amplifiers is capable of driving the output voltage to within 4mV of the rail with a 100k load, and can sink and source 11mA with a +5V supply. These amplifiers are available in both fully compensated and decompensated versions. The single MAX4470, dual MAX4471, and the quad MAX4472 are unity-gain stable. The single MAX4464 and the dual MAX4474 are stable for closed-loop gain configurations of +5V/V. These amplifiers are available in space-saving SC70, SOT23, MAX, and TSSOP packages.
Features
o Ultra-Low 750nA Supply Current Per Amplifier o Ultra-Low +1.8V Supply Voltage Operation o Ground-Sensing Input Common-Mode Range o Outputs Swing Rail-to-Rail o Outputs Source and Sink 11mA of Load Current o No Phase Reversal for Overdriven Inputs o High 120dB Open-Loop Voltage Gain o Low 500V Input Offset Voltage o 9kHz Gain-Bandwidth Product (MAX4470/MAX4471/MAX4472) o 40kHz Gain-Bandwidth Product (MAX4464/MAX4474) o 250pF (min) Capacitive Load Capability o Available in Tiny 5-Pin SC70 and 8-Pin SOT23 Packages
Applications
Battery-Powered Systems Portable Instrumentation Pagers and Cellphones Micropower Thermostats Electrometer Amplifiers Solar-Powered Systems Remote Sensor Active Badges pH Meters
PART MAX4464EXK-T MAX4464EUK-T MAX4470EXK-T MAX4470EUK-T MAX4471EKA-T
Ordering Information
TEMP. RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C PINPACKAGE 5 SC70-5 5 SOT23-5 5 SC70-5 5 SOT23-5 8 SOT23-8 8 SO 14 TSSOP 14 SO 8 SOT23-8 8 MAX 8 SO TOP MARK ABT ADPI ABS ADPH AAEK -- -- -- AAEL -- --
Pin Configurations
TOP VIEW
IN+ 1
MAX4471ESA MAX4472EUD MAX4472ESD MAX4474EKA-T MAX4474EUA MAX4474ESA
MAX4470 MAX4464
5
VDD
VSS 2
Selector Guide
IN- 3 4 OUT
PART
NO. OF AMPLIFIERS 1 1 2 4 2
GAINBANDWIDTH 40kHz 9kHz 9kHz 9kHz 40kHz
MINIMUM STABLE GAIN 5V/V 1V/V 1V/V 1V/V 5V/V
SC70/SOT23 Pin Configurations continued at end of data sheet.
MAX4464 MAX4470 MAX4471 MAX4472 MAX4474
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
ABSOLUTE MAXIMUM RATINGS
VDD to VSS ...............................................................-0.3V to +6V IN_+ or IN_-......................................(VSS - 0.3V) to (VDD + 0.3V) OUT_ Shorted to VSS or VDD ......................................Continuous Continuous Power Dissipation (TA = +70C) 5-Pin SC70 (derate 3.1mW/C above +70C)...................247mW 5-Pin SOT23 (derate 7.1mW/C above +70C).................571mW 8-Pin SOT23 (derate 8.9mW/C above +70C).................714mW 8-Pin MAX (derate 4.5mW/C above +70C) ..................362mW 8-Pin SO (derate 5.88mW/C above +70C)....................471mW 14-Pin TSSOP (derate 9.1mW/C above +70C) ...........727mW 14-Pin SO (derate 8.33mW/C above +70C)...............667mW Operating Temperature Range ......................... -40C to +85C Junction Temperature .....................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) ................................+300C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD = +5V, VSS = 0, VCM = 0, VOUT = VDD/2, RL = to VDD/2, TA = +25C, unless otherwise noted.)
PARAMETER Supply Voltage Range Supply Current (Per Amplifier) Input Offset Voltage Input Bias Current Input Offset Current Input Common-Mode Voltage Range Common-Mode Rejection Ratio Power-Supply Rejection Ratio Large-Signal Voltage Gain SYMBOL VDD IDD VOS IB IOS VCM CMRR PSRR Guaranteed by the CMRR test Specified with VSS VCM (VDD - 1.1V) +1.8V VDD +5.5V RL = 1M, VOUT = 50mV to VDD - 50mV AVOL RL = 100k, VOUT = 200mV to VDD - 200mV RL = 10k, VOUT = 200mV to VDD - 200mV VOH Output Voltage Swing VOL Swing low specified as VOL - VSS Swing high specified as VDD - VOH RL = 1M RL = 100k RL = 10k RL = 1M RL = 100k RL = 10k VSS 70 70 90 90 95 90 120 112 100 1 4 40 0.5 1 10 9 40 90 80 kHz degrees 5 5 4 10 mV dB VDD = +1.8V VDD = +5.0V CONDITIONS Guaranteed by PSRR tests MIN 1.8 0.6 0.75 0.5 200 12.5 VDD 1.1 1.2 7.0 1500 TYP MAX 5.5 UNITS V A mV pA pA V dB dB
Gain-Bandwidth Product Phase Margin
GBW M
MAX4470/MAX4471/MAX4472 MAX4464/MAX4474 MAX4470/MAX4471/MAX4472 MAX4464/MAX4474
2
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Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V, VSS = 0, VCM = 0, VOUT = VDD/2, RL = to VDD/2, TA = +25C, unless otherwise noted.)
PARAMETER Slew Rate Input Voltage Noise Output Short-Circuit Current Power-On Time Power-Off Time Capacitive Load tON tOFF CLOAD No sustained oscillations 250 SYMBOL SR en VOUT = 4V step f = 1kHz f = 10kHz Shorted to VSS (sourcing) Shorted to VDD (sinking) CONDITIONS MAX4470/MAX4471/MAX4472 MAX4464/MAX4474 MIN TYP 2 20 150 120 11 36 2 2 MAX UNITS V/ms nV/Hz mA s s pF
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
ELECTRICAL CHARACTERISTICS
(VDD = +5V, VSS = 0, VCM = 0, VOUT = VDD/2, RL = to VDD/2, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)
PARAMETER Supply Voltage Range Supply Current (Per Amplifier) Input Offset Voltage Input Offset Voltage Temperature Coefficient Input Bias Current Input Common-Mode Voltage Range Common-Mode Rejection Ratio Power-Supply Rejection Ratio Large-Signal Voltage Gain SYMBOL VDD IDD VOS TCVOS IB VCM CMRR PSRR AVOL VOH Output Voltage Swing VOL Guaranteed by the CMRR test VSS VCM (VDD - 1.1V) +1.8V VDD +5.5V, 0oC TA +85oC +2V VDD +5.5V, -40oC TA +85oC VOUT = 50mV to VDD - 50mV, RL = 1M VOUT = 200mV to VDD - 200mV, RL = 100k Swing high specified as VDD - VOH Swing low specified as VOL - VSS RL = 1M RL = 100k RL = 1M RL = 100k VSS 56 65 65 75 75 5 15 5 5 mV 8 4.25 VDD 1.1 CONDITIONS Guaranteed by PSRR tests VDD = +5.0V MIN 1.8 TYP MAX 5.5 1.5 15 UNITS V A mV V/C nA V dB dB dB
Note 1: All devices are production tested at TA = +25C. All temperature limits are guaranteed by design.
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3
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Typical Operating Characteristics
(VDD = +5V, VSS = 0, VCM = 0, RL = 100k to VDD/2, TA = +25C, unless otherwise noted.)
SUPPLY CURRENT PER AMPLIFIER vs. SUPPLY VOLTAGE
MAX4470-74 toc01
SUPPLY CURRENT PER AMPLIFIER vs. TEMPERATURE
MAX4470-74 toc02
OFFSET VOLTAGE vs. TEMPERATURE
0.45 0.40 OFFSET VOLTAGE (mV) 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0
MAX4470-74 toc03
0.9 0.8 SUPPLY CURRENT (A) 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0
0.9 0.8 SUPPLY CURRENT (A) 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0
0.50
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 SUPPLY VOLTAGE (V)
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
TEMPERATURE (C)
TEMPERATURE (C)
OFFSET VOLTAGE vs. COMMON-MODE VOLTAGE
MAX4470-74 toc04
INPUT BIAS CURRENT vs. TEMPERATURE
MAX4470-74 toc05
INPUT BIAS CURRENT vs. COMMON-MODE VOLTAGE
-10 INPUT BIAS CURRENT (pA) -20 -30 -40 -50 -60 -70 -80 -90
MAX4470-74 toc06
0.50 0.45 0.40 OFFSET VOLTAGE (mV) 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
0 -50 INPUT BIAS CURRENT (pA) -100 -150 -200 -250 -300 -350 -400
0
4.0
-50
-25
0
25
50
75
100
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
COMMON-MODE VOLTAGE (V)
TEMPERATURE (C)
COMMON-MODE VOLTAGE (V)
POWER-SUPPLY REJECTION RATIO vs. FREQUENCY
-10 -20 -30 PSRR (dB) -40 -50 -60 -70 -80 -90 -100 10 100 1k 10k FREQUENCY (Hz) 0.4 0.2 0 -50 VOL - VSS (mV)
MAX4470-74 toc07
OUTPUT VOLTAGE SWING LOW vs. TEMPERATURE
MAX4470-74 toc08
OUTPUT VOLTAGE SWING HIGH vs. TEMPERATURE
MAX4470-74 toc09
0
1.6 1.4 RL = 100k 1.2 1.0 0.8 0.6 RL = 1M
6 5 4 3 2 1 0 RL = 1M RL = 100k
VDD - VOH (mV)
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
TEMPERATURE (C)
TEMPERATURE (C)
4
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Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0, VCM = 0, RL = 100k to VDD/2, TA = +25C, unless otherwise noted.)
COMMON-MODE REJECTION RATIO vs. TEMPERATURE
-30 -40 -50 CMRR (dB) -60 -70 -80 -90 -100 -110 -120 -50 -25 0 25 50 75 100 TEMPERATURE (C) 0 -50 -25 0 25 50 75 100 TEMPERATURE (C)
MAX4470-74 toc10
MINIMUM SUPPLY VOLTAGE vs. TEMPERATURE
MAX4470-74 toc11
AVOL vs. OUTPUT VOLTAGE SWING
130 120 AVOL (dB) 110 100 90 RL = 10k RL = 1M RL = 100k
MAX4470-74 toc12
-20
1.4 MINIMUM SUPPLY VOLTAGE (V) 1.2 1.0 0.8 0.6 0.4 0.2
140
80 70 60 2.5 3.0 3.5 4.0 4.5 5.0 OUTPUT VOLTAGE (Vp-p)
MAX4470/MAX4471/MAX4472 GAIN AND PHASE vs. FREQUENCY
80 70 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 1 10
MAX4470-74 toc13
MAX4470/MAX4471/MAX4472 GAIN AND PHASE vs. FREQUENCY
180 135 90 PHASE (deg) 45 0 -45 -90 -135 100k GAIN (dB) 80 70 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 1
MAX4470-74 toc14
CROSSTALK vs. FREQUENCY
MAX4470 toc15
180 135
-40
CL = 12pF RL = 1M AVCL = 1000V/V GAIN
-60 CROSSTALK (dB) PHASE (deg)
GAIN
90 45 0
GAIN (dB)
-80
-100
PHASE
PHASE RL = 1M AVCL = 1000V/V CL = 250pF 10 100 1k 10k
-45 -120 -90 -135 100k -140 10 100 1k FREQUENCY (Hz) 10k 100k
100
1k
10k
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX4470/MAX4471/MAX4472 TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY
MAX4470-74 toc16
VOLTAGE NOISE DENSITY vs. FREQUENCY
MAX4470-74 toc17
MAX4470/MAX4471/MAX4472 STABILITY vs. CAPACITIVE AND RESISTIVE LOADS
MAX4470-74 toc18
10.00
10k
100k
NOISE (nV/Hz)
THD + N (%)
1.00
CAPACITIVE LOAD (pF)
1k
10k UNSTABLE REGION 1k
0.10
100
0.01 10 100 1k 10k FREQUENCY (Hz)
10 10 100 1k FREQUENCY (Hz) 10k 100k
100 10k 100k RESISTIVE LOAD () 1M
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5
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0, VCM = 0, RL = 100k to VDD/2, TA = +25C, unless otherwise noted.)
IOUT vs. VOUT
MAX4470-74 toc19
MAX4470/MAX4471/MAX4472 SMALL-SIGNAL STEP RESPONSE
MAX4470 toc20
MAX4470/MAX4471/MAX4472 SMALL-SIGNAL STEP RESPONSE
MAX4470 toc21
40 36 32 28 IOUT (mA) 24 20 16 12 8 4 0 0 1 2 VOUT (V) 3 4 5 ISOURCE ISINK
INPUT 500mV/div
VDD = +5V AV = +1V/V RL = 1M CL = 12pF
INPUT 50mV/div
VDD = +5V AV = +1V/V RL = 1M CL = 250pF
OUTPUT 500mV/div
OUTPUT 50mV/div
500s/div
500s/div
MAX4470/MAX4471/MAX4472 SMALL-SIGNAL STEP RESPONSE
MAX4470 toc22
MAX4470/MAX4471/MAX4472 LARGE-SIGNAL STEP RESPONSE
MAX4470 toc23
MAX4470/MAX4471/MAX4472 LARGE-SIGNAL STEP RESPONSE
MAX4470 toc24
INPUT 50mV/div
VDD = +5V AV = +1V/V RL = 1M CL = 1000pF
INPUT 500mV/div
VDD = +5V AV = +1V/V RL = 1M CL = 12pF
INPUT 500mV/div
VDD = +5V AV = +1V/V RL = 1M CL = 1000pF
OUTPUT 50mV/div
OUTPUT 500mV/div
OUTPUT 500mV/div
500s/div
500s/div
500s/div
MAX4470/MAX4471/MAX4472 PERCENT OVERSHOOT vs. CAPACITIVE LOAD
MAX4470-74 toc25
MAX4470/MAX4471/MAX4472 SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4470-74 toc26
MAX4470/MAX4471/MAX4472 SMALL-SIGNAL GAIN vs. FREQUENCY
2 1 0 GAIN (dB) -1 -2 -3 -4 -5 -6 -7 RL = 100k VOUT = 100mVp-p CL = 12pF AV = 1
MAX4470-74 toc27
30 25 PERCENT OVERSHOOT (%) 20 15 10 5 0 0 50 100 150 CLOAD (pF) 200 250 RL = 100k RL = 1M
3 2 1 0 GAIN (dB) -1 -2 -3 -4 -5 -6 -7 RL = 10k VOUT = 100mVp-p CL = 12pF AV = 1
3
RL = 10k
300
100
1k FREQUENCY (Hz)
10k
100
1k
10k
100k
FREQUENCY (Hz)
6
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Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0, VCM = 0, RL = 100k to VDD/2, TA = +25C, unless otherwise noted.)
MAX4470/MAX4471/MAX4472 SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4470-74toc28
MAX4470/MAX4471/MAX4472 LARGE-SIGNAL GAIN vs. FREQUENCY
MAX4470-74 toc29
MAX4470/MAX4471/MAX4472 LARGE-SIGNAL GAIN vs. FREQUENCY
2 1 0 GAIN (dB) -1 -2 -3 -4 -5 -6 -7 RL = 100k VOUT = 1Vp-p CL = 12pF AV = 1
MAX4470-74 toc30
3 2 1 0 GAIN (dB) -1 -2 -3 -4 -5 -6 -7 100 1k 10k RL = 1M VOUT = 100mVp-p CL = 12pF AV = 1
3 2 1 0 GAIN (dB) -1 -2 -3 -4 -5 -6 -7
RL = 10k VOUT = 1Vp-p CL = 12pF AV = 1
3
100k
100
1k FREQUENCY (Hz)
10k
100
1k FREQUENCY (Hz)
10k
FREQUENCY (Hz)
MAX4470/MAX4471/MAX4472 LARGE-SIGNAL GAIN vs. FREQUENCY
2 1 0 GAIN (dB) GAIN (dB) -1 -2 -3 -4 -5 -6 -7 100 1k FREQUENCY (Hz) 10k RL = 1M VOUT = 1Vp-p CL = 12pF
MAX4470-74 toc31
MAX4464/MAX4474 GAIN AND PHASE vs. FREQUENCY
80 70 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 1
MAX4464 toc32
MAX4464/MAX4474 GAIN AND PHASE vs. FREQUENCY
180 135 PHASE (degrees) 90 45 80 70 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 1 10 180 RL =1M CL = 250pF 135 AVCL = 1000V/V GAIN PHASE (degrees) 90 45 0 PHASE -45 -90 -135 100k
MAX4464 toc33
3
AV = 1
RL =1M CL = 8pF AVCL = 1000V/V GAIN
PHASE
0 -45 -90
10
100
1k
10k
-135 100k
GAIN (dB)
100
1k
10k
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX4464/MAX4474 TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY
MAX4464 toc34
MAX4464/MAX4474 STABILITY vs. CAPACITIVE AND RESISTIVE LOADS
MAX4464 toc35
MAX4464/MAX4474 SMALL-SIGNAL STEP RESPONSE
VDD = +5V AV = +5V/V RL = 1M CL = 8pF
MAX4464 toc36
10
100,000
1 CAPACITIVE LOAD (pF) 10,000 UNSTABLE REGION 1000 THD + N (%)
INPUT 10mV/div
0.1
0.01
OUTPUT 50mV/div
0.001 10 100 1k 10k FREQUENCY (Hz)
100 10k 100k RESISTIVE LOAD () 1M 500s/div
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7
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0, VCM = 0, RL = 100k to VDD/2, TA = +25C, unless otherwise noted.)
MAX4464/MAX4474 SMALL-SIGNAL STEP RESPONSE
MAX4464 toc37
MAX4464/MAX4474 SMALL-SIGNAL STEP RESPONSE
MAX4464 toc38
MAX4464/MAX4474 LARGE-SIGNAL STEP RESPONSE
VDD = +5V AV = +5V/V RL = 1M CL = 8pF
MAX4464 toc39
INPUT 10mV/div
VDD = +5V AV = +5V/V RL = 1M CL = 250pF
INPUT 10mV/div
VDD = +5V AV = +5V/V RL = 1M CL = 1000pF
INPUT 100mV/div
OUTPUT 50mV/div
OUTPUT 50mV/div
OUTPUT 500mV/div
500s/div
500s/div
500s/div
MAX4464/MAX4474 LARGE-SIGNAL STEP RESPONSE
VDD = +5V AV = +5V/V RL = 1M CL = 1000pF
MAX4464 toc40
MAX4464/MAX4474 PERCENT OVERSHOOT vs. CAPACITIVE LOAD
MAX4464 toc41
30 25 PERCENT OVERSHOOT (%) RL = 1M 20 15 10 5 0 RL = 10k RL = 100k
INPUT 100mV/div
OUTPUT 500mV/div
500s/div
0
50
100
150 CLOAD (pF)
200
250
300
MAX4464/MAX4474 SMALL-SIGNAL NORMALIZED GAIN vs. FREQUENCY
MAX4464 toc42
MAX4464/MAX4474 SMALL-SIGNAL NORMALIZED GAIN vs. FREQUENCY
2 1 0 GAIN (dB) -1 -2 -3 -4 -5 -6 -7 RL = 100k VOUT = 100mVp-p CL = 12pF AV = +5
MAX4464 toc43
3 2 1 0 GAIN (dB) -1 -2 -3 -4 -5 -6 -7 100 1k 10k RL = 10k VOUT = 100mVp-p CL = 12pF AV = +5
3
100k
100
1k
10k
100k
FREQUENCY (Hz)
FREQUENCY (Hz)
8
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Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0, VCM = 0, RL = 100k to VDD/2, TA = +25C, unless otherwise noted.)
MAX4464/MAX4474 SMALL-SIGNAL NORMALIZED GAIN vs. FREQUENCY
MAX4464 toc44
MAX4464/MAX4474 LARGE-SIGNAL NORMALIZED GAIN vs. FREQUENCY
2 1 0 GAIN (dB) -1 -2 -3 -4 -5 -6 -7 RL = 10k VOUT = 1Vp-p CL = 12pF AV = +5
MAX4464 toc45
3 2 1 0 GAIN (dB) -1 -2 -3 -4 -5 -6 -7
RL = 1M VOUT = 100mVp-p CL = 12pF AV = +5
3
100
1k
10k
100k
100
1k
10k
100k
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX4464/MAX4474 LARGE-SIGNAL NORMALIZED GAIN vs. FREQUENCY
MAX4464 toc46
MAX4464/MAX4474 LARGE-SIGNAL NORMALIZED GAIN vs. FREQUENCY
2 1 0 GAIN (dB) -1 -2 -3 -4 -5 -6 -7 RL = 1M VOUT = 1Vp-p CL = 12pF AV = +5
MAX4464 toc47
3 2 1 0 GAIN (dB) -1 -2 -3 -4 -5 -6 -7 100 1k 10k AV = +5 RL = 100k VOUT = 1Vp-p CL = 12pF
3
100k
100
1k
10k
100k
FREQUENCY (Hz)
FREQUENCY (Hz)
Pin Description
MAX4470/ MAX4464 1 -- 2 3 4 -- PIN MAX4471/ MAX4474 -- 3 4 -- -- 2 MAX4472 -- 3 11 -- -- 2 NAME IN+ INA+ VSS INOUT INAFUNCTION Noninverting Amplifier Input Noninverting Amplifier Input (Channel A) Negative Power-Supply Voltage Inverting Amplifier Input Amplifier Output Inverting Amplifier Input (Channel A)
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9
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Pin Description (continued)
MAX4470/ MAX4464 -- -- -- -- -- -- -- -- -- -- 5 PIN MAX4471/ MAX4474 1 6 5 7 -- -- -- -- -- -- 8 MAX4472 1 6 5 7 9 10 8 13 12 14 4 NAME OUTA INBINB+ OUTB INCINC+ OUTC INDIND+ OUTD VDD FUNCTION Amplifier Output (Channel A) Inverting Amplifier Input (Channel B) Noninverting Amplifier Input (Channel B) Amplifier Output (Channel B) Inverting Amplifier Input (Channel C) Noninverting Amplifier Input (Channel C) Amplifier Output (Channel C) Inverting Amplifier Input (Channel D) Noninverting Amplifier Input (Channel D) Amplifier Output (Channel D) Positive Power-Supply Voltage
Applications Information
Ground Sensing
The common-mode input range of the MAX4470 family extends down to ground, and offers excellent commonmode rejection. These devices are guaranteed not to undergo phase reversal when the input is overdriven.
Stability
The MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 maintain stability in their minimum gain configuration while driving capacitive loads. Although this product family is primarily designed for low-frequency applications, good layout is extremely important because lowpower requirements demand high-impedance circuits. The layout should also minimize stray capacitance at the amplifier inputs. However some stray capacitance may be unavoidable, and it may be necessary to add a 2pF to 10pF capacitor across the feedback resistor as shown in Figure 2. Select the smallest capacitor value that ensures stability.
Power Supplies and Layout
The MAX4470 family operates from a single +1.8V to +5.5V power supply. Bypass power supplies with a 0.1F ceramic capacitor placed close to the VDD pin. Ground layout improves performance by decreasing the amount of stray capacitance and noise at the op amp's inputs and outputs. To decrease stray capacitance, minimize PC board lengths and resistor leads, and place external components close to the op amps' pins.
VCC VIN
Bandwidth
The MAX4470/MAX4471/MAX4472 are internally compensated for unity-gain stability and have a typical gain-bandwidth of 9kHz. The MAX4464/MAX4474 have a 40kHz typical gain-bandwidth and are stable for a gain of +5V/V or greater.
R2 MAX44_ _ VSS
R1
2pF TO 10pF
Figure 2. Compensation for Feedback Node Capacitance
10
______________________________________________________________________________________
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps
Pin Configurations (continued)
TOP VIEW
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
MAX4471 MAX4474
OUTA 1 8 VDD
OUTA 1
14 OUTD
INAINA- 2 7 OUTB INA+ INA+ 3 6 INB-
2
13 IND-
3
12 IND+
VDD 4 VSS 4 5 INB+ INB+ 5
MAX4472
11 VSS
10 INC+
SOT23/MAX/SO
INB- 6 9 INC-
OUTB 7
8
OUTC
SO/TSSOP
Chip Information
MAX4470/MAX4464 TRANSISTOR COUNT: 147 MAX4471/MAX4474 TRANSISTOR COUNT: 293 MAX4472 TRANSISTOR COUNT: 585 PROCESS: BiCMOS
______________________________________________________________________________________
11
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.
SC70, 5L.EPS
SEE DETAIL "A" b
C L
e
SYMBOL A A1 A2 b C D E E1 L L2 e e1
MIN 0.90 0.00 0.90 0.28 0.09 2.80 2.60 1.50 0.30
MAX 1.45 0.15 1.30 0.45 0.20 3.00 3.00 1.75 0.60 0.25 BSC.
C L
E
C L
E1
PIN 1 I.D. DOT (SEE NOTE 6) e1 D C
C L
0
0.65 BSC. 1.95 REF. 0 8
L2 A A2 A1
SEATING PLANE C
GAUGE PLANE
L
0
NOTE:
1. ALL DIMENSIONS ARE IN MILLIMETERS. 2. FOOT LENGTH MEASURED FROM LEAD TIP TO UPPER RADIUS OF HEEL OF THE LEAD PARALLEL TO SEATING PLANE C. 3. PACKAGE OUTLINE EXCLUSIVE OF MOLD FLASH & METAL BURR. 4. PACKAGE OUTLINE INCLUSIVE OF SOLDER PLATING. 5. COPLANARITY 4 MILS. MAX. 6. PIN 1 I.D. DOT IS 0.3 MM y MIN. LOCATED ABOVE PIN 1. 7. SOLDER THICKNESS MEASURED AT FLAT SECTION OF LEAD BETWEEN 0.08mm AND 0.15mm FROM LEAD TIP. 8. MEETS JEDEC MO178.
PROPRIETARY INFORMATION TITLE:
DETAIL "A"
PACKAGE OUTLINE, SOT-23, 8L BODY
APPROVAL DOCUMENT CONTROL NO. REV.
21-0078
1 1
D
12
______________________________________________________________________________________
SOT23, 8L .EPS
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
4X S
8
8
INCHES DIM A A1 A2 b MIN 0.002 0.030 MAX 0.043 0.006 0.037
MILLIMETERS MAX MIN 0.05 0.75 1.10 0.15 0.95
y 0.500.1
E
H
0.60.1
c D e E H L
1
1
0.60.1
S
D
BOTTOM VIEW
0.010 0.014 0.005 0.007 0.116 0.120 0.0256 BSC 0.116 0.120 0.188 0.198 0.016 0.026 6 0 0.0207 BSC
0.25 0.36 0.13 0.18 2.95 3.05 0.65 BSC 2.95 3.05 4.78 5.03 0.41 0.66 0 6 0.5250 BSC
TOP VIEW
A2
A1
A
c e b L
SIDE VIEW
FRONT VIEW
PROPRIETARY INFORMATION TITLE:
PACKAGE OUTLINE, 8L uMAX/uSOP
APPROVAL DOCUMENT CONTROL NO. REV.
21-0036
1 1
J
______________________________________________________________________________________
TSSOP4.40mm.EPS
8LUMAXD.EPS
13
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.
INCHES DIM A A1 B C e E H L MAX MIN 0.069 0.053 0.010 0.004 0.014 0.019 0.007 0.010 0.050 BSC 0.150 0.157 0.228 0.244 0.016 0.050
MILLIMETERS MAX MIN 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 1.27 BSC 3.80 4.00 5.80 6.20 0.40 1.27
N
E
H
VARIATIONS:
1
INCHES
MILLIMETERS MIN 4.80 8.55 9.80 MAX 5.00 8.75 10.00 N MS012 8 AA 14 AB 16 AC
TOP VIEW
DIM D D D
MIN 0.189 0.337 0.386
MAX 0.197 0.344 0.394
D C
A e B A1
0-8 L
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION TITLE:
PACKAGE OUTLINE, .150" SOIC
APPROVAL DOCUMENT CONTROL NO. REV.
21-0041
B
1 1
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2003 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
SOICN .EPS

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