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LT1191 Ultrahigh Speed Operational Amplifier
FEATURES
s s s s s s s s s s
DESCRIPTIO
Gain Bandwidth Product, AV = 1: 90MHz Slew Rate: 450V/s Low Cost Output Current: 50mA Settling Time: 110ns to 0.1% Differential Gain Error: 0.07%, (RL = 1k) Differential Phase Error: 0.02, (RL = 1k) High Open-Loop Gain: 20V/mV Min Single Supply 5V Operation Output Shutdown
The LT(R)1191 is a video operational amplifier optimized for operation on 5V and a single 5V supply. Unlike many high speed amplifiers, this amplifier features high open-loop gain, over 90dB, and the ability to drive heavy loads to a full-power bandwidth of 20MHz at 7VP-P. In addition to its very fast slew rate, the LT1191 features a unity-gain-stable bandwidth of 90MHz. Because the LT1191 is a true operational amplifier, it is an ideal choice for wideband signal conditioning, fast integrators, active filters, and applications requiring speed, accuracy and low cost. The LT1191 is available in 8-pin PDIP and SO packages with standard pinouts. The normally unused Pin 5 is used for a shutdown feature that shuts off the output and reduces power dissipation to a mere 15mW.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s s s s s
Video Cable Drivers Video Signal Processing Fast Integrators Pulse Amplifiers D/A Current to Voltage Conversion
TYPICAL APPLICATIO
5V 7 VIN1 3
Video MUX Cable Driver
+ -
LT1191 SHDN 5 4 -5V 1k 6
Inverter Pulse Response
2 CMOS IN CH. SELECT
1k 1k 75 CABLE 75 -5V 5V VIN2 3 5
74HC04 1k
74HC04
+ SHDN
LT1191
7 6 4 -5V
LT1191 * TA01
2
-
1k
AV = -1, CL = 10pF SCOPE PROBE
1k
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LT1190 * TA02
U
U
1
LT1191
ABSOLUTE
(Note 1)
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
TOP VIEW BAL 1 -IN 2 +IN 3 V- 4 N8 PACKAGE 8-LEAD PDIP 8 7 6 5 BAL V+ OUT SHDN
Total Supply Voltage (V + to V -) ............................. 18V Differential Input Voltage ........................................ 6V Input Voltage .......................................................... VS Output Short-Circuit Duration (Note 2) ........ Continuous Operating Temperature Range LT1191M (OBSOLETE) ............. -55C to 125C LT1191C ............................................... 0C to 70C Maximum Junction Temperature ......................... 150C Storage Temperature Range ................. -65C to 150C Lead Temperature (Soldering, 10 sec)................. 300C
ORDER PART NUMBER LT1191CN8 LT1191CS8 S8 PART MARKING 1191 LT1191MJ8 LT1191CJ8
S8 PACKAGE 8-LEAD PLASTIC SO
TJMAX = 150C, JA = 100C/W (N8) TJMAX = 150C, JA = 150C/W (S8) J8 PACKAGE 8-LEAD CERDIP TJMAX = 150C, JA = 100C/W
OBSOLETE PACKAGE
Consider the N8 or S8 Packages for Alternate Source
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
SYMBOL VOS IOS IB en in RIN CIN CMRR PSRR AVOL PARAMETER Input Offset Voltage Input Offset Current Input Bias Current Input Noise Voltage Input Noise Current Input Resistance Input Capacitance Input Voltage Range Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Differential Mode Common Mode AV = +1 (Note 3) fO = 10kHz fO = 10kHz
VS = 5V, TA = 25C, CL 10pF, Pin 5 open circuit unless otherwise noted.
MIN LT1191M/C TYP MAX 1 0.2 0.5 25 4 70 5 2 -2.5 60 60 20 4 6 3.7 6.7 325 17.2 100 75 75 45 9 12 4 7 450 23.9 90 130 1.25 2.2 25 110 160 3.5 5 9 1.7 2.5 UNITS mV mV A A nV/Hz pA/Hz k M pF V dB dB V/mV V/mV V/mV V V V/s MHz MHz ns ns ns % ns
CONDITIONS N8 Package SO-8 Package
VCM = - 2.5V to 3.5V VS = 2.375V to 8V RL = 1k, VO = 3V RL = 100, VO = 3V VS = 8V, RL = 100, VO = 5V VS = 5V, RL = 1k VS = 8V, RL = 1k AV = -2, RL = 1k (Notes 4, 9) VO = 6VP-P (Note 5) AV = 50, VO = 1.5V, 20% to 80% (Note 9) AV = 1, VO = 125mV, 10% to 90% AV = 1, VO = 125mV, 50% to 50% AV = 1, VO = 125mV 3V Step, 0.1% (Note 6)
VOUT SR FPBW GBW tr1, t f1 tr2, t f2 tPD ts
Output Voltage Swing Slew Rate Full-Power Bandwidth Gain Bandwidth Product Rise Time, Fall Time Rise Time, Fall Time Propagation Delay Overshoot Settling Time
2
U
W
U
U
WW
W
LT1191
ELECTRICAL CHARACTERISTICS
SYMBOL Diff AV Diff Ph IS ISHDN tON tOFF PARAMETER Differential Gain Differential Phase Supply Current Shutdown Supply Current Shutdown Pin Current Turn On Time Turn Off Time Pin 5 at
VS = 5V, TA = 25C, CL 10pF, Pin 5 open circuit unless otherwise noted.
MIN LT1191M/C TYP MAX 0.15 0.09 32 V- 1.3 20 100 400 38 2 50 UNITS % DegP-P mA mA A ns ns
CONDITIONS RL = 150, AV = 2 (Note 7) RL = 150, AV = 2 (Note 7)
Pin 5 at V - Pin 5 from V - to Ground, RL = 1k Pin 5 from Ground to V -, RL = 1k
VS+ = 5V, VS- = 0V, VCM = 2.5V, TA = 25C, CL 10pF, Pin 5 open circuit unless otherwise noted.
SYMBOL VOS IOS IB CMRR AVOL VOUT SR GBW IS ISHDN PARAMETER Input Offset Voltage Input Offset Current Input Bias Current Input Voltage Range Common Mode Rejection Ratio Large-Signal Voltage Gain Output Voltage Swing Slew Rate Gain Bandwidth Product Supply Current Shutdown Supply Current Shutdown Pin Current Pin 5 at V - Pin 5 at V- (Note 3) VCM = 2V to 3.5V RL = 100 to Ground, VO = 1V to 3V RL = 100 to Ground AV = -1, VO = 1V to 3V VOUT High VOUT Low 2 55 5 3.6 70 9 3.8 0.25 250 80 29 1.2 20 36 2 50 0.4 CONDITIONS N8 Package SO-8 Package MIN LT1191M/C TYP MAX 2 0.2 0.5 7 9 1.2 1.5 3.5 UNITS mV mV A A V dB V/mV V V V/s MHz mA mA A
The q denotes the specifications which apply over the full operating temperature range of - 55C TA 125C. VS = 5V, Pin 5 open circuit unless otherwise noted.
SYMBOL VOS VOS /T IOS IB CMRR PSRR AVOL VOUT IS ISHDN PARAMETER Input Offset Voltage Input VOS Drift Input Offset Current Input Bias Current Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Output Voltage Swing Supply Current Shutdown Supply Current Shutdown Pin Current Pin 5 at V - (Note 8) Pin 5 at V- VCM = - 2.5V to 3.5V VS = 2.375V to 5V RL = 1k, VO = 3V RL = 100, VO = 3V RL = 1k CONDITIONS N8 Package
q q q q q q q q q q q q
MIN
LT1191M TYP 2 8 0.2 0.5
MAX 8 2 2.5
UNITS mV V/C A A dB dB V/mV V/mV V
55 55 16 2 3.7
70 70 32 5 3.9 32 1.5 20 38 2.5
mA mA A
3
LT1191
ELECTRICAL CHARACTERISTICS
SYMBOL VOS VOS /T IOS IB CMRR PSRR AVOL VOUT IS ISHDN PARAMETER Input Offset Voltage Input VOS Drift Input Offset Current Input Bias Current Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Output Voltage Swing Supply Current Shutdown Supply Current Shutdown Pin Current
The q denotes the specifications which apply over the full operating temperature range of 0C TA 70C. VS = 5V, Pin 5 open circuit unless otherwise noted.
CONDITIONS N8 Package SO-8 Package
q q q q
MIN
LT1191C TYP 2 8 0.2 0.5
MAX 6 10 1.7 2.5
UNITS mV mV V/C A A dB dB V/mV V/mV V
VCM = - 2.5V to 3.5V VS = 2.375V to 5V RL = 1k, VO = 3V RL = 100, VO = 3V RL = 1k Pin 5 at V- (Note 8)
q q q q q q q q
58 58 20 3 3.7
70 70 40 9 3.9 32 1.4 20 38 2.1
mA mA A
Pin 5 at V -
Note 1: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. Note 2: A heat sink is required to keep the junction temperature below absolute maximum when the output is shorted. Note 3: Exceeding the input common mode range may cause the output to invert. Note 4: Slew rate is measured between 1V on the output, with a 1.5V input step. Note 5: Full-power bandwidth is calculated from the slew rate measurement: FPBW = SR/2VP.
Note 6: Settling time measurement techniques are shown in "Take the Guesswork Out of Settling Time Measurements," EDN, September 19, 1985. AV = -1, RL = 1k. Note 7: NTSC (3.58MHz). For RL = 1k, Diff AV = 0.07%, Diff Ph = 0.02. Note 8: See Applications section for shutdown at elevated temperatures. Do not operate the shutdown above TJ > 125C. Note 9: AC parameters are 100% tested on the ceramic and plastic DIP packaged parts (J and N suffix) and are sample tested on every lot of the SO packaged parts (S suffix).
Optional Offset Nulling Circuit
5V 3
+ -
1
7 LT1191 6 4 8 -5V
2
INPUT OFFSET VOLTAGE CAN BE ADJUSTED OVER A 100mV RANGE WITH A 1k TO 10k POTENTIOMETER LT1191 * TA03
4
LT1191 TYPICAL PERFOR A CE CHARACTERISTICS
Input Bias Current vs Common Mode Voltage
4 3 VS = 5V -0.3
COMMON MODE VOLTAGE (V)
INPUT BIAS CURRENT (A)
INPUT BIAS CURRENT (A)
2 1 25C 0 -1 -2 -4 -3 1 3 -2 -1 0 2 COMMON MODE VOLTAGE (V) 4 -55C 125C
Equivalent Input Noise Voltage vs Frequency
EQUIVALENT INPUT NOISE CURRENT (pA/Hz)
EQUIVALENT INPUT NOISE VOLTAGE (nV/ Hz)
300 250 200 150 100 50 0 10 100
SUPPLY CURRENT (mA)
1k 10k FREQUENCY (Hz)
Shutdown Supply Current vs Temperature
5.0 VS = 5V 50k
SHUTDOWN SUPPLY CURRENT (mA)
OPEN-LOOP VOLTAGE GAIN (V/V)
VSHDN = -VEE + 0.4V 4.0 3.5 3.0 VSHDN = -VEE + 0.2V 2.5 2.0 VSHDN = -VEE 1.5 1.0 -50 -25 0 25 75 50 TEMPERATURE (C) 100 125
40k
RL = 1k
OPEN-LOOP VOLTAGE GAIN (V/V)
4.5
UW
LT1191 * TPC01
Input Bias Current vs Temperature
VS = 5V 10 8 6 4 2 0 -2 -4 -6 -8 -0.8 -50 -10 -25 50 0 25 75 TEMPERATURE (C) 100 125
Common Mode Voltage vs Supply Voltage
-55C 25C +V COMMON MODE 125C
-0.4 +IB -0.5 IOS -0.6 -IB
-0.7
-V COMMON MODE
-55C 25C 125C
0
2
6 4 8 V SUPPLY VOLTAGE (V)
10
LT1191 * TPC02
LT1191 * TPC03
Equivalent Input Noise Current vs Frequency
80 VS = 5V TA = 25C RS = 100k
Supply Current vs Supply Voltage
40
VS = 5V TA = 25C RS = 0
60
30 -55C 25C 20 125C
40
20
10
0 10 100 1k 10k FREQUENCY (Hz) 100k
0 0 2 8 4 6 SUPPLY VOLTAGE (V) 10
100k
LT1191 * TPC04
LT1191 * TPC05
LT1191 * TPC06
Open-Loop Voltage Gain vs Temperature
50k
Open-Loop Voltage Gain vs Load Resistance
VS = 5V VO = 3V TA = 25C
40k
30k
30k
20k RL = 100 VS = 5V VO = 3V -25 50 0 25 75 TEMPERATURE (C) 100 125
20k
10k
10k
0 -50
0 10 100 LOAD RESISTANCE () 1000
LT1191 * TPC09
LT1191 * TPC07
LT1191 * TPC08
5
LT1191 TYPICAL PERFOR A CE CHARACTERISTICS
Gain, Phase vs Frequency
100 80
VOLTAGE GAIN (dB)
PHASE
GAIN BANDWIDTH PRODUCT (MHz)
OUTPUT IMPEDANCE ( )
60 40 20 0 -20 100k
GAIN
1M
10M 100M FREQUENCY (Hz)
Unity Gain Frequency and Phase Margin vs Temperature
110
UNITY GAIN FREQUENCY (MHz) COMMON MODE REJECTION RATIO (dB)
48
PHASE MARGIN (DEGREES)
60 50 40 30 20 10 100k
POWER SUPPLY REJECTION RATIO (dB)
VS = 5V RL = 1k PHASE MARGIN
100
UNITY GAIN FREQUENCY 90 42 40 80 38 36 70 -50 -25 25 75 0 50 TEMPERATURE (C) 100 34 125
Output Short-Circuit Current vs Temperature
100
OUTPUT SHORT-CIRCUIT CURRENT (mA)
6 90
OUTPUT VOLTAGE SWING (V)
OUTPUT SWING (V)
80
70 -50
-25
50 0 25 75 TEMPERATURE (C)
6
UW
LT1191 * TPC10 LT1191 * TPC12
Gain Bandwidth Product vs Supply Voltage
100 VS = 5V TA = 25C RL = 1k 80 60 40 20 0 -20 1G 95
100
Output Impedance vs Frequency
VS = 5V TA = 25C
PHASE MARGIN (DEGREES)
85
TA = -55C, 25C, 125C
10
75
1 AV = -100 0.1 AV = -1 AV = -10
65
55 0 2 4 8 6 V SUPPLY VOLTAGE (V) 10
0.01
1k
10k
100k 1M FREQUENCY (Hz)
10M
100M
LT1191 * TPC11
LT1191 * TPC13
Common Mode Rejection Ratio vs Frequency
50 70 VS = 5V TA = 25C RL = 1k
Power Supply Rejection Ratio vs Frequency
80 60 40 +PSRR 20 0 -20 -40 VS = 5V VRIPPLE = 300mV TA = 25C
-PSRR
46 44
1M
10M 100M FREQUENCY (Hz)
1G
1k
10k
1M 100k FREQUENCY (Hz)
10M
100M
LT1191 * TPC14
LT1191 * TPC15
Output Swing vs Supply Voltage
10 8 RL = 1k +VOUT, 25C, 125C, -55C 5
Output Voltage Swing vs Load Resistance
VS = 5V TA = -55C TA = 25C 1 TA = 125C
VS = 5V
3
4 2 0 -2 -4 -6 -8 -10 -VOUT, -55C, 25C,125C
-1
-3
TA = 125C TA = -55C, 25C
-5 0 2 8 4 6 V SUPPLY VOLTAGE (V) 10 10 100 LOAD RESISTANCE () 1000
LT1191 * TPC18
100
125
LT1191 * TPC16
LT1191 * TPC17
LT1191 TYPICAL PERFOR A CE CHARACTERISTICS
Slew Rate vs Temperature
600 VS = 5V TA = 25C RL = 1k VO = 2V 4 -SLEW RATE
OUTPUT VOLTAGE STEP (V)
OUTPUT VOLTAGE STEP (V)
SLEW RATE (V/s)
500 +SLEW RATE
400
300 -50
-25
0 25 50 75 TEMPERATURE (C)
Large-Signal Transient Response
AV = 1, CL = 10pF SCOPE PROBE
UW
100
LT1191 * TPC19 LT1191 * TPC22
Output Voltage Step vs Settling Time, AV = -1
VS = 5V TA = 25C RL = 1k 10mV 4
Output Voltage Step vs Settling Time, AV = 1
1mV
2
2
10mV 1mV
0 10mV -2 1mV
0 10mV -2 VS = 5V TA = 25C RL = 1k -4 50 70 90 110 130 150 170 190 210 230 SETTLING TIME (ns)
LT1191 * TPC21
1mV
-4 125 20 40 60 80 100 120 SETTLING TIME (ns) 140 160
LT1191 * TPC20
Small-Signal Transient Response
Output Overload
LT1191 * TPC23
LT1191 * TPC24
AV = 1, SMALL-SIGNAL RISE TIME, WITH FET PROBES
AV = - 1, VIN = 12VP-P
7
LT1191
APPLICATIO S I FOR ATIO
Power Supply Bypassing The LT1191 is quite tolerant of power supply bypassing. In some applications a 0.1F ceramic disc capacitor placed 1/2 inch from the amplifier is all that is required. A scope photo of the amplifier output with no supply bypassing is used to demonstrate this bypassing tolerance, RL = 1k.
No Supply Bypass Capacitors
LT1191 * TA04
AV = -1, IN DEMO BOARD, RL = 1k
Supply bypassing can also affect the response in the frequency domain. It is possible to see a slight rise in the frequency response at 130MHz depending on the gain configuration, supply bypass, inductance in the supply leads and printed circuit board layout. This can be further minimized by not using a socket.
Closed-Loop Voltage Gain vs Frequency
20
CLOSED-LOOP VOLTAGE GAIN (dB)
VS = 5V TA = 25C RL = 1k AV = 2 AV = 1 VOUT 1V/DIV 0V 0V VOUT 1mV/DIV
10
0
-10
-20 100k
1M
10M 100M FREQUENCY (Hz)
1G
LT1191 * TA05
8
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In most applications, and those requiring good settling time, it is important to use multiple bypass capacitors. A 0.1F ceramic disc in parallel with a 4.7F tantalum is recommended. Two oscilloscope photos with different bypass conditions are used to illustrate the settling time characteristics of the amplifier. Note that although the output waveform looks acceptable at 1V/DIV, when amplified to1mV/DIV the settling time to 2mV is 2.61s for the 0.1F bypass; the time drops to 143ns with multiple bypass capacitors.
Settling Time Poor Bypass
VOUT 1V/DIV 0V 0V VOUT 1mV/DIV
LT1191 * TA06
W
UU
SETTLING TIME TO 2mV, AV = -1 SUPPLY BYPASS CAPACITORS = 0.1F
Settling Time Good Bypass
LT1191 * TA07
SETTLING TIME TO 2mV, AV = -1 SUPPLY BYPASS CAPACITORS = 0.1F + 4.7F TANTALUM
LT1191
APPLICATIO S I FOR ATIO
Cable Terminations The LT1191 operational amplifier has been optimized as a low cost video cable driver. The 50mA guaranteed output current enables the LT1191 to easily deliver 7.5VP-P into 100, while operating on 5V supplies or 2.6VP-P on a single 5V supply. When driving a cable it is important to terminate the cable to avoid unwanted reflections. This can be done in one of two ways: single termination or double termination. With single termination, the cable must be terminated at the receiving end (75 to ground) to absorb unwanted energy. The best performance can be obtained by double termination (75 in series with the output of the amplifier, and 75 to ground at the other end of the cable). This termination is preferred because reflected energy is absorbed at each end of the cable. When using the double termination technique it is important to note that the signal is attenuated by a factor of 2, or 6dB. This can be compensated for by taking a gain of 2, or 6dB in the amplifier. The cable driver has a -3dB bandwidth of 100MHz while driving the 150 load. Note the response can be improved by lowering the impedance of the feedback elements.
Double Terminated Cable Driver
5V 3+ 7 6 LT1191 2- 4 -5V 75 RFB CABLE 75
LT1191 * TA09
RG
Cable Driver Voltage Gain vs Frequency
10
CLOSED-LOOP VOLTAGE GAIN (dB)
AV = 2 RFB = 1k RG = 330 R FB = 1k RG = 1k
VS = 5V TA = 25C
5
0
AV = 1
RFB = 300 RG = 300 -5
-10 100k
1M 10M FREQUENCY (Hz)
100M
LT1191 * TA10
LT1191 * TA08
U
Using the Shutdown Feature The LT1191 has a unique feature that allows the amplifier to be shut down for conserving power or for multiplexing several amplifiers onto a common cable. The amplifier will shut down by taking Pin 5 to V -. In shutdown, the amplifier dissipates 15mW while maintaining a true high impedance output state of 15k in parallel with the feedback resistors. The amplifiers must be used in a noninverting configuration for MUX applications. In inverting configurations the input signal is fed to the output through the feedback components. The following scope photos show that with very high RL, the output is truly high impedance; the output slowly decays toward ground. Additionally, when the output is loaded with as little as 1k the amplifier shuts off in 400ns. This shutoff can be under the control of HC CMOS operating between 0V and -5V.
Output Shutdown
0V - 5V VSHDN VOUT 1MHz SINE WAVE GATED OFF WITH SHUTDOWN PIN, AV = 1, RL =
W
UU
Output Shutdown
0V VSHDN - 5V
VOUT
1MHz SINE WAVE GATED OFF WITH SHUTDOWN PIN, AV = 1, RL = 1k
9
LT1191
APPLICATI S I FOR ATIO
The ability to maintain shutoff is shown on the curve Shutdown Supply Current vs Temperature in the Typical Performance Characteristics section. At very high elevated temperatures it is important to hold the SHDN pin close to the negative supply to keep the supply current from increasing. Murphy Circuits There are several precautions the user should take when using the LT1191 in order to realize its full capability. Although the LT1191 can drive a 30pF load, isolating the capacitance with 10 can be helpful. Precautions primarily have to do with driving large capacitive loads.
Driving Capacitive Load
LT1191 * TA11
AV = -1, IN DEMO BOARD, CL = 30pF
5V 3
+
LT1191
7 6 4 -5V
COAX 2
2
-
An Unterminated Cable Is a Large Capacitive Load
10
U
Other precautions include: 1. Use a ground plane (see Design Note 50, High Frequency Amplifier Evaluation Board). 2. Do not use high source impedances. The input capacitance of 2pF and RS = 10k, for instance, will give an 8MHz - 3dB bandwidth. 3. PC board socket may reduce stability. 4. A feedback resistor of 1k or lower reduces the effects of stray capacitance at the inverting input. (For instance, closed-loop gain of 2 can use RFB = 300 and RG = 300.)
Driving Capacitive Load
LT1191 * TA12
W
U
UO
AV = -1, IN DEMO BOARD, CL = 30pF WITH 10 ISOLATING RESISTOR
Murphy Circuits
5V 3
5V 3 6 2
+ -
7 LT1191 4 -5V 1X SCOPE PROBE
+ -
7 LT1191 4 -5V 6
SCOPE PROBE
LT1191 * TA13
A 1X Scope Probe Is a Large Capacitive Load
A Scope Probe on the Inverting Input Reduces Phase Margin
LT1191
SI PLIFIED SCHE ATIC
7 V+ VBIAS VBIAS CM
+ -
3 CFF 2 +V +V 6 VOUT
5 SHDN
*SUBSTRATE DIODE, DO NOT FORWARD BIAS
PACKAGE DESCRIPTIO
CORNER LEADS OPTION (4 PLCS)
0.300 BSC (0.762 BSC)
0.045 - 0.068 (1.143 - 1.727) FULL LEAD OPTION
0.008 - 0.018 (0.203 - 0.457)
0 - 15 1 0.045 - 0.065 (1.143 - 1.651) 0.014 - 0.026 (0.360 - 0.660) 0.100 (2.54) BSC 0.125 3.175 MIN 2 3 4
J8 1298
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS
Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
U
W
W
*
4 V-
LT1191 * TA14
1 BAL
8 BAL
J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
0.023 - 0.045 (0.584 - 1.143) HALF LEAD OPTION 0.200 (5.080) MAX 0.015 - 0.060 (0.381 - 1.524) 0.005 (0.127) MIN
0.405 (10.287) MAX 8 7 6 5
0.025 (0.635) RAD TYP
0.220 - 0.310 (5.588 - 7.874)
OBSOLETE PACKAGE
11
LT1191
PACKAGE DESCRIPTIO U
N8 Package 8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
0.400* (10.160) MAX 8 7 6 5 0.045 - 0.065 (1.143 - 1.651) 0.130 0.005 (3.302 0.127) 0.255 0.015* (6.477 0.381) 0.125 (3.175) 0.020 MIN (0.508) MIN 0.018 0.003 (0.457 0.076) 1 2 3 4
N8 1098
0.300 - 0.325 (7.620 - 8.255)
0.009 - 0.015 (0.229 - 0.381)
0.065 (1.651) TYP
(
+0.035 0.325 -0.015 8.255 +0.889 -0.381
)
0.100 (2.54) BSC
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
0.189 - 0.197* (4.801 - 5.004) 0.010 - 0.020 x 45 (0.254 - 0.508) 0.008 - 0.010 (0.203 - 0.254) 0- 8 TYP 0.053 - 0.069 (1.346 - 1.752) 8 0.004 - 0.010 (0.101 - 0.254) 0.228 - 0.244 (5.791 - 6.197) 0.150 - 0.157** (3.810 - 3.988) 7 6 5
0.014 - 0.019 (0.355 - 0.483) TYP *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
0.016 - 0.050 (0.406 - 1.270)
0.050 (1.270) BSC
SO8 1298
1
2
3
4
RELATED PARTS
PART NUMBER LT1363 LT1813 DESCRIPTION High Speed Operational Amplifier High Speed Operational Amplifier COMMENTS 70MHz Gain Bandwidth, 1000V/s Slew Rate, IS = 7.5mA Max 100MHz Gain Bandwidth, 750V/s Slew Rate, IS = 3.6mA Max
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 q FAX: (408) 434-0507
q
1191fa LT/CP 0801 1.5K REV A * PRINTED IN USA
www.linear.com
(c) LINEAR TECHNOLOGY CORPORATION 1991

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