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19-0442; Rev 1; 11/95
KIT ATION EVALU E AILABL AV
350MHz, Ultra-Low-Noise Op Amps
____________________________Features
o 350MHz -3dB Bandwidth (MAX4106) o 275V/s Slew Rate (MAX4106) 500V/s Slew Rate (MAX4107) o 18ns Settling Time to 0.01% o 0.75nV/Hz Voltage Noise o High Output Drive: 80mA
_______________General Description
The MAX4106/MAX4107 op amps combine high-speed performance with ultra-low-noise performance. The MAX4106 is compensated for closed-loop gains of 5V/V, while the MAX4107 is stable in closed-loop gains of 10V/V or greater. The MAX4106/MAX4107 require only 15mA of supply current while delivering a 350MHz or a 300MHz bandwidth, respectively. Voltage noise is an ultra-low 0.75nV/Hz, while a low-distortion architecture provides a spurious-free dynamic range (SFDR) of 63dB at 5MHz. These high-speed op amps have a wide output voltage swing of 3.2V and a high current-drive capability of 80mA.
MAX4106/MAX4107
________________________Applications
Ultra-Low-Noise ADC Preamp Ultrasound Low-Noise Preamplifier High-Performance Receivers Active Filters Pulse/RF Amplifier
______________Ordering Information
PART MAX4106ESA MAX4107ESA TEMP. RANGE -40C to +85C -40C to +85C PIN-PACKAGE 8 SO 8 SO
________Typical Application Circuit
+5V 0.1F
__________________Pin Configuration
TOP VIEW
1000pF
INPUT
MAX4107
8 to 16-BIT HIGH-SPEED ADC
N.C. 1 IN- 2
MAX4106 MAX4107
8 7 6 5
N.C. VCC OUT N.C.
0.1F
1000pF -5V RF 240
IN+ 3 VEE 4
RG 27
SO
ADC BUFFER WITH GAIN (AVCL = 10V/V)
________________________________________________________________ Maxim Integrated Products
1
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350MHz, Ultra-Low-Noise Op Amps MAX4106/MAX4107
ABSOLUTE MAXIMUM RATINGS
Power-Supply Voltage (VCC to VEE).......................................12V Voltage on Any Pin to Ground or Any Other Pin .........VCC to VEE Short-Circuit Duration (VOUT to GND)........................Continuous Continuous Power Dissipation (TA = +70C) SO (derate 5.88mW/C above +70C) ........................471mW Operating Temperature Range MAX4106ESA/MAX4107ESA ..........................-40C to +85C Storage Temperature Range .............................-65C to +160C Junction Temperature ......................................................+150C Lead Temperature (soldering, 10sec) .............................+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
(VCC = 5V, VEE = -5V, TA = TMIN to TMAX, typical values are at TA = +25C, unless otherwise noted.) PARAMETER DC SPECIFICATIONS Input Offset Voltage Input Offset Voltage Drift Input Bias Current Input Offset Current Common-Mode Input Resistance Common-Mode Input Capacitance Input Voltage Noise Integrated Voltage Noise Input Current Noise Integrated Current Noise Common-Mode Input Voltage Common-Mode Rejection Power-Supply Rejection Open-Loop Voltage Gain Supply Current Output Voltage Swing Output Current Drive Short-Circuit Output Current VOS TCVOS IB IOS RINCM CINCM en EnRMS In InRMS VCM CMR PSR AVOL IS VOUT IOUT ISC VCM = 2.5V VS = 4.5V to 5.5V VOUT = 2.0V, VCM = 0V VIN = 0V RL = RL = 100 RL = 30, TA = 0C to +85C Short to ground 3.2 3.0 65 RL = RL = 100 VOUT = 0V VOUT = 0V VOUT = 0V, VIN = -VOS VOUT = 0V, VIN = -VOS Either input Either input f = 10kHz f = 1MHz to 100MHz f = 10kHz f = 1MHz to 100MHz -2.5 70 75 80 80 100 100 100 100 15 3.8 3.5 80 90 19 0.250 1.0 18 0.05 1 1 0.75 9.5 2.5 31 2.5 26 2 3 mV V/C A A M pF nV/Hz VRMS pA/Hz nARMS V dB dB dB mA V mA mA SYMBOL CONDITIONS MIN TYP MAX UNITS
2
_______________________________________________________________________________________
350MHz, Ultra-Low-Noise Op Amps
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 5V, VEE = -5V, TA = TMIN to TMAX, typical values are at TA = +25C, unless otherwise noted.) PARAMETER AC SPECIFICATIONS -3dB Bandwidth 0.1dB Bandwidth Slew Rate BW-3dB BW0.1dB SR VOUT 0.1VRMS MAX4106, AVCL = +5 MAX4107, AVCL = +10 -2V VOUT 2V -1V VOUT 1V, RL = 100, to 0.1% -1V VOUT 1V, RL = 100, to 0.01% 10% to 90%, -2V VOUT 2V, RL = 100 10% to 90%, -50mV VOUT 50mV, RL = 100 f = 3.58MHz f = 3.58MHz MAX4106 MAX4107 MAX4106 MAX4107 MAX4106 MAX4107 MAX4106 MAX4107 MAX4106 MAX4107 MAX4106 MAX4107 350 300 75 45 275 500 13 13 18 18 13 6 1 1 0.04 0.03 0.02 0.03 2 f = 10MHz fC = 5MHz, VOUT = 2Vp-p fC = 10MHz MAX4106, AVCL = +5 MAX4107, AVCL = +10 0.7 63 60 24 % degrees pF dBc dBm ns ns MHz MHz V/s SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX4106/MAX4107
Settling Time
tS
Rise/Fall Times
tR, tF
Differential Gain Differential Phase Input Capacitance Output Impedance Spurious-Free Dynamic Range Two-Tone Third-Order Intercept
DG DP CIN ZOUT SFDR IP3
MAX4106, AVCL = +5 MAX4107, AVCL = +10 MAX4106, AVCL = +5 MAX4107, AVCL = +10
_______________________________________________________________________________________
3
350MHz, Ultra-Low-Noise Op Amps MAX4106/MAX4107
__________________________________________Typical Operating Characteristics
(VCC = +5V, VEE = -5V, RL = 100, TA = +25C, unless otherwise noted.)
MAX4106 SMALL-SIGNAL GAIN vs. FREQUENCY (AVCL = +5, +6)
MAX4106/7-01
MAX4106 SMALL-SIGNAL GAIN vs. FREQUENCY (AVCL = +10)
MAX4106/7-02
MAX4107 SMALL-SIGNAL GAIN vs. FREQUENCY (AVCL = +10)
23 22 21 GAIN (dB) 20 19 18 17 16 15
MAX4106/7-03
19 18 17 16 GAIN (dB) 15 14 13 12 11 10 9 0.1M 1M 10M 100M AVCL = +5 AVCL = +6
24 23 22 21 GAIN (dB) 20 19 18 17 16 15
24
1G
14 0.1M
1M
10M
100M
1G
14 0.1M
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX4107 SMALL-SIGNAL GAIN vs. FREQUENCY (AVCL = +20)
MAX4106/7-04
VOLTAGE NOISE vs. FREQUENCY
MAX4106/7-05
CURRENT NOISE vs. FREQUENCY
MAX4106/7-06
30 29 28 27 GAIN (dB) 26 25 24 23 22 21 20 0.1M
10
100
CURRENT NOISE (pA/Hz)
VOLTAGE NOISE (nV/Hz)
1
10
0.1 1M 10M 100M 1G 1 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) FREQUENCY (Hz, Log)
1 1 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz, Log)
MAX4106 SMALL-SIGNAL PULSE RESPONSE (AVCL = +5)
MAX4106/7-07
MAX4106 SMALL-SIGNAL PULSE RESPONSE (AVCL = +10)
MAX4106/7-08
MAX4106 LARGE-SIGNAL PULSE RESPONSE (AVCL = +5)
MAX4106/7-09
IN VOLTAGE (20mV/div)
IN VOLTAGE (20mV/div)
IN VOLTAGE (1V/div)
OUT
GND
OUT
GND
OUT
GND
TIME (20ns/div)
TIME (20ns/div)
TIME (20ns/div)
4
_______________________________________________________________________________________
350MHz, Ultra-Low-Noise Op Amps
____________________________Typical Operating Characteristics (continued)
(VCC = +5V, VEE = -5V, RL = 100, TA = +25C, unless otherwise noted.)
MAX4106 LARGE-SIGNAL PULSE RESPONSE (AVCL = +10)
MAX4106/7-10
MAX4106/MAX4107
MAX4107 SMALL-SIGNAL PULSE RESPONSE (AVCL = +10)
MAX4106/7-11
MAX4107 SMALL-SIGNAL PULSE RESPONSE (AVCL = +20)
MAX4106/7-12
IN VOLTAGE (1V/div)
IN VOLTAGE (20mV/div)
IN VOLTAGE (20mV/div)
OUT
GND
OUT
GND
OUT
GND
TIME (20ns/div)
TIME (10ns/div)
TIME (10ns/div)
MAX4107 LARGE-SIGNAL PULSE RESPONSE (AVCL = +10)
MAX4106/7-13
MAX4107 LARGE-SIGNAL PULSE RESPONSE (AVCL = +20)
MAX4106/7-14
CLOSED-LOOP OUTPUT IMPEDANCE vs. FREQUENCY
2.2k 708 RESISTANCE () 224 70.7 22.4 7.1 2.2 0.7 0.2
MAX4106/7-15
7k
IN VOLTAGE (1V/div)
IN VOLTAGE (1V/div)
OUT
GND
OUT
GND
TIME (10ns/div)
TIME (10ns/div)
0.07 0.1M
1M
10M
100M
1G
FREQUENCY (Hz)
POWER-SUPPLY REJECTION vs. FREQUENCY
MAX4106/7-16
MAX4106 COMMON-MODE REJECTION vs. FREQUENCY
MAX4106/7-17
MAX4107 COMMON-MODE REJECTION vs. FREQUENCY
120 100 80 CMR (dB) 60 40 20 0 -20 -40
MAX4106/7-18
140 120 100 80 PSR (dB) 60 40 20 0 -20 -40 -60 0.1M 1M 10M 100M
85 75 65 55 CMR (dB) 45 35 25 15 5 -5
140
1G
10k
100k
1M
10M
100M
1G
30k
100k
1M
10M
100M 1G
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
_______________________________________________________________________________________
5
350MHz, Ultra-Low-Noise Op Amps MAX4106/MAX4107
____________________________Typical Operating Characteristics (continued)
(VCC = +5V, VEE = -5V, RL = 100, TA = +25C, unless otherwise noted.)
TWO-TONE THIRD-ORDER INTERCEPT vs. FREQUENCY
MAX4106/7-19
MAX4106 HARMONIC DISTORTION vs. FREQUENCY (AVCL = +5)
MAX4106/7-20
MAX4107 HARMONIC DISTORTION vs. FREQUENCY (AVCL = +10)
VO = 2Vp-p RL = 100 -30 2ND HARMONIC -50
MAX4106/7-21
35 THIRD-ORDER INTERCEPT (dBm) 30 25 20 MAX4106 15 10 5 0 1 10 FREQUENCY (MHz) MAX4107
0 HARMONIC DISTORTION (dBc) -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 2ND HARMONIC 3RD HARMONIC VO = 2Vp-p RL = 100
-10 HARMONIC DISTORTION (dBc)
-70
-90 3RD HARMONIC -110
100
0.1
1
10
100
0.1
1
10
100
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX4107 HARMONIC DISTORTION vs. FREQUENCY (AVCL = +20)
MAX4106/7-22
MAX4106 5MHz HARMONIC DISTORTION vs. LOAD RESISITANCE
MAX4106/7-23
MAX4107 5MHz HARMONIC DISTORTION vs. LOAD RESISTANCE
AVCL = +10 VO = 2Vp-p
MAX4106/7-24
0 HARMONIC DISTORTION (dBc) -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 0.1M 1M 3RD HARMONIC 10M 2ND HARMONIC
0 HARMONIC DISTORTION (dBc) -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 3RD HARMONIC 2ND HARMONIC AVCL = +5 VO = 2Vp-p
10 HARMONIC DISTORTION (dBc) -10 -30 -50 -70 -90 -110 2ND HARMONIC
3RD HARMONIC
100M
0
200
400
600
800
1000
0
200
400
600
800
1000
FREQUENCY (Hz)
LOAD RESISTANCE ()
LOAD RESISTANCE ()
MAX4106 5MHz HARMONIC DISTORTION vs. OUTPUT SWING
MAX4106/7-25
MAX4107 5MHz HARMONIC DISTORTION vs. OUTPUT SWING
MAX4106/7-26
MAX4106 DIFFERENTIAL GAIN AND PHASE
0.06 0.04 0.02 0.00 -0.02 -0.04 -0.06 0 0.03 0.02 0.01 0.00 -0.01 -0.02 -0.03 0 DIFF. PHASE () RL = 150 DIFF. GAIN (%) RL = 150
MAX4106/7-27
10 HARMONIC DISTORTION (dBc) -10 -30 -50 -70 -90 -110 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 3RD HARMONIC 2ND HARMONIC AVCL = +5 RL = 100
0 HARMONIC DISTORTION (dBc) -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 3RD HARMONIC 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2ND HARMONIC AVCL = +10 RL = 100
IRE
100
4.0
4.0
OUTPUT SWING (VP-P)
OUTPUT SWING (VP-P)
IRE
100
6
_______________________________________________________________________________________
350MHz, Ultra-Low-Noise Op Amps
____________________________Typical Operating Characteristics (continued)
(VCC = +5V, VEE = -5V, RL = 100, TA = +25C, unless otherwise noted.)
MAX4107 DIFFERENTIAL GAIN AND PHASE
MAX4106/7-28
MAX4106/MAX4107
OUTPUT SWING vs. LOAD RESISTANCE
MAX4106/7-29
POSITIVE OUTPUT VOLTAGE SWING vs. TEMPERATURE
RL =
MAX4106/7-30
0.06 DIFF. GAIN (%) 0.04 0.02 0.00 -0.02 -0.04 0 0.02 0.01 0.00 -0.01 -0.02 -0.03 -0.04 0 IRE DIFF. PHASE () IRE
7.5 7.0 OUTPUT SWING (VP-P) 6.5 6.0 5.5 5.0 4.5 30 50 70 90 110 130
3.9 POSITIVE OUTPUT VOLTAGE (V) 3.8 3.7 3.6 3.5 3.4 3.3 RL = 100
100
150
-75 -50 -25
0
25
50 75 100 125 150
100
LOAD RESISTANCE ()
TEMPERATURE (C)
NEGATIVE OUTPUT VOLTAGE SWING vs. TEMPERATURE
MAX4106/7-31
POWER-SUPPLY CURRENT vs. TEMPERATURE
MAX4106/7-32
INPUT BIAS CURRENT vs. TEMPERATURE
28 INPUT BIAS CURRENT (A) 26 24 22 20 18 16 14 12 10
MAX4106/7-33
-3.3 NEGATIVE OUTPUT VOLTAGE (V) -3.4 -3.5 -3.6 -3.7 -3.8 -3.9 -75 -50 -25 0 25
20 15 SUPPLY CURRENT (mA) 10 5 0 -5 -10 IEE -15 -20 ICC
30
RL = 100
RL =
50 75 100 125 150
-75 -50 -25
0
25
50 75 100 125 150
-75 -50 -25
0
25
50 75 100 125 150
TEMPERATURE (C)
TEMPERATURE (C)
TEMPERATURE (C)
INPUT OFFSET CURRENT vs. TEMPERATURE
0.21 INPUT OFFSET CURRENT (A) 0.19 0.17 0.15 0.13 0.11 0.09 0.07 0.05 0.03 -75 -50 -25 0 25 50 75 100 125 150 TEMPERATURE (C) 0.10
MAX4106/7-34
INPUT OFFSET VOLTAGE vs. TEMPERATURE
MAX4106/7-35
0.23
0.40 INPUT OFFSET VOLTAGE (mV) 0.35 0.30 0.25 0.20 0.15
-75 -50 -25
0
25
50 75 100 125 150
TEMPERATURE (C)
_______________________________________________________________________________________
7
350MHz, Ultra-Low-Noise Op Amps MAX4106/MAX4107
_____________________Pin Description
PIN 1, 5, 8 2 3 4 6 7 NAME N.C. ININ+ VEE OUT VCC FUNCTION No Connection, not internally connected Inverting Input Noninverting Input Negative Power Supply, connect to -5V Amplifier Output Positive Power Supply, connect to +5V
The MAX4106/MAX4107 are ultra-low-noise, high-bandwidth op amps. The output noise voltage can be dominated by resistor thermal noise, so keep the feedback and input resistors small. Setting the input resistor to 30 and choosing the feedback resistor to suit the gain will provide excellent AC performance without significantly degrading noise performance.
Driving Capacitive Loads
The MAX4106/MAX4107 are optimized for AC performance. They are not designed to drive highly reactive loads. Reactive loads will decrease phase margin and may produce excessive ringing and oscillation. Figure 1a shows a circuit that eliminates this problem, and Figure 1b is a graph of the optimal isolation resistor (RS) vs. capacitive load. Figures 2a and 2b show how a capacitive load causes excessive peaking of the amplifier's bandwidth if the capacitive load is not isolated (RS) from the amplifier. A small isolation resistor (usually 10 to 20) placed before the reactive load prevents ringing and oscillation. At higher capacitive loads, AC performance will be controlled by the interaction of the load capacitance and isolation resistor. Figures 3a and 3b show the effect of an isolation resistor on the MAX4106/MAX4107 closed-loop response. Coaxial cable and other transmission lines are easily driven when terminated at both ends with their characteristic impedance. When driving back-terminated transmission lines, the capacitance of the transmission line is essentially eliminated.
_______________General Description
Choosing Resistor Values
The values of the gain-setting feedback and input resistors are important design considerations. Large resistor values will increase voltage noise, and will interact with the amplifier's input and PC board capacitance to generate undesirable poles and zeros, which can decrease bandwidth or cause oscillations. For example, a noninverting gain of +5 (MAX4106), using a 1k feedback resistor combined with 2pF of input capacitance and 0.5pF of board capacitance, will cause a feedback pole at 318MHz. If this pole is within the anticipated amplifier bandwidth, it will jeopardize stability. Reducing the 1k feedback resistor to 40 will extend the pole frequency to 8GHz, but could limit output swing by adding 50 in parallel with the amplifier's load. Clearly the selection of resistor values must be tailored to the specific application.
RG 30
25 RESISTANCE () MAX4107 20 15 10 MAX4106 5 PART MAX4106 MAX4107 RF () 120 270 GAIN (V/V) +5 +10 0 10 40 70 100 130 160 190
RS VIN
MAX4106 MAX4107
CL RL
220
CAPACITANCE (pF)
Figure 1a. Using an Isolation Resistor for High Capacitive Loads
8
Figure 1b. Optimal Isolation Resistor (RS) vs. Capacitive Load
_______________________________________________________________________________________
MAX4106/7-1B
RF
30
350MHz, Ultra-Low-Noise Op Amps MAX4106/MAX4107
MAX4106/7-2A
20 CLOSED-LOOP GAIN (dB) 18 16 14 12 10 8
CLOSED-LOOP GAIN (dB)
RS = 0 AVCL = +5 CL = 10pF
24 22 20 18 16 14 12
RS = 0 AVCL = +10
CL = 15pF CL = 10pF
CL = 5pF
CL = 5pF
6 0.1M
1M
10M
100M
1G
10 0.1M
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 2a. MAX4106 Response vs. Capacitive Load--No Resistive (RS) Isolation (circuit shown in Figure 1)
Figure 2b. MAX4107 Response vs. Capacitive Load--No Isolation (RS) Resistor (circuit shown in Figure 1)
MAX4106/7-3A
18 CLOSED-LOOP GAIN (dB) 16 14 12 10 8 6
CL = 10pF AVCL = +5
RS = 4.7 RS = 10
24 CLOSED-LOOP GAIN (dB) 22 20 18 16 14 12
CL = 10pF AVCL = +10
RS = 2.2
RS = 22
RS = 10 RS = 22
4 0.1M
1M
10M
100M
1G
10 0.1M
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 3a. MAX4106 Response vs. Capacitive Load with Resistive (RS) Isolation (circuit shown in Figure 1)
Figure 3b. MAX4107 Response vs. Capacitive Load with Resistive (RS) Isolation (circuit shown in Figure 1)
_______________________________________________________________________________________
MAX4106/7-3B
20
26
MAX4106/7-2B
22
26
9
350MHz, Ultra-Low-Noise Op Amps MAX4106/MAX4107
___________________Chip Information
TRANSISTOR COUNT: 55
________________________________________________________Package Information
INCHES MAX MIN 0.069 0.053 0.010 0.004 0.019 0.014 0.010 0.007 0.157 0.150 0.050 0.244 0.228 0.050 0.016 MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 3.80 4.00 1.27 5.80 6.20 0.40 1.27
DIM
D A e B
0.101mm 0.004in.
0-8
A1
C
L
A A1 B C E e H L
E
H
Narrow SO SMALL-OUTLINE PACKAGE (0.150 in.)
DIM PINS D D D 8 14 16
INCHES MILLIMETERS MIN MAX MIN MAX 0.189 0.197 4.80 5.00 0.337 0.344 8.55 8.75 0.386 0.394 9.80 10.00
21-0041A
10
______________________________________________________________________________________
350MHz, Ultra-Low-Noise Op Amps MAX4106/MAX4107
______________________________________________________________________________________ 11
350MHz, Ultra-Low-Noise Op Amps MAX4106/MAX4107
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.
12 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 (c) 1995 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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