LT1122
Fast Settling, JFET Input Operational Amplifier
FEATURES DESCRIPTION
n 100% Tested Settling Time 340ns Typ to 1mV at Sum Node, 10V Step 540ns Max Tested with Fixed Feedback Capacitor
n Slew Rate 60V/µs Min
n Gain-Bandwidth Product 14MHz
n Power Bandwidth (20VP-P) 1.2 MHz n Unity-Gain Stable; Phase Margin 60° n Input Offset Voltage 600µV Max
n Input Bias Current 25°C 75pA Max 70°C 600pA Max
Input Offset Current 25°C 40pA Max 70°C 150pA Max
Low Distortion
APPLICATIONS
n Fast 12-Bit D/A Output Amplifiers
n High Speed Buffers
n Fast Sample-and-Hold Amplifiers
n High Speed Integrators
n Voltage to Frequency Converters
n Active Filters
n Log Amplifiers
n Peak Detectors
The LT®1122 JFET input operational amplifier combines high speed and precision performance.
A unique poly-gate JFET process minimizes gate series resistance and gate-to-drain capacitance, facilitating wide bandwidth performance, without degrading JFET transis- tor matching.
It slews at 80V/µs and settles in 340ns. The LT1122 is internally compensated to be unity-gain stable, yet it has a bandwidth of 14MHz at a supply current of only 7mA. Its speed makes the LT1122 an ideal choice for fast settling 12-bit data conversion and acquisition systems.
The LT1122 offset voltage of 120µV, and voltage gain of 500,000 also support the 12-bit accurate applications.
The input bias current of 10pA and offset current of 4pA combined with its speed allow the LT1122 to be used in such applications as high speed sample and hold ampli- fiers, peak detectors, and integrators.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and C-Load is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
0mA TO 2mA OR 4mA
+
CF
2 –
LT1122 6
+
3
VOUT
5V/DIV
0V TO 10V
BIT CURRENT OUTPUT D/A CONVERTER CF = 5pF TO 17pF
(DEPENDING ON D/A CONVERTER USED)
LT1122•TA01
200ns/DIV AV = –1
1122 TA07
Supply Voltage ...................................................... ± 20V
Differential Input Voltage ....................................... ± 40V Input Voltage.......................................................... ± 20V
Output Short Circuit Duration .......................... Indefinite
Lead Temperature (Soldering, 10 sec.).................. 300°C
Operating Temperature Range
LT1122AM/BM/CM/DM (OBSOLETE).. –55°C to 125°C LT1122AC/BC/CC/DC/CS/DS ................. –40°C to 85°C
Storage Temperature Range
All Devices .......................................... –65°C to 150°C
TOP VIEW | TOP VIEW VOS 1 8 SPEED BOOST/ TRIM OVERCOMP –IN 2 7 V+ +IN 3 6 OUT V– 4 5 VOS TRIM S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 150°C, JA = 190°C/W |
VOS 1 8 SPEED BOOST/ | |
TRIM OVERCOMP | |
–IN 2 7 V+ | |
+IN 3 6 OUT | |
V– 4 5 VOS TRIM | |
N8 PACKAGE | |
8-LEAD PDIP | |
TJMAX = 150°C, JA = 130°C/W | |
OBSOLETE PACKAGE | |
J8 PACKAGE 8-LEAD HERMETIC DIP | |
TJMAX = 175°C, JA = 100°C/W |
LEAD FREE FINISH | TAPE AND REEL | PART MARKING | PACKAGE DESCRIPTION | TEMPERATURE RANGE |
LT1122ACN8#PBF | LT1122ACN8#TRPBF | LT1122ACN8 | 8-Lead Plastic DIP | –40°C to 85°C |
LT1122BCN8#PBF | LT1122BCN8#TRPBF | LT1122BCN8 | 8-Lead Plastic DIP | –40°C to 85°C |
LT1122CCN8#PBF | LT1122CCN8#TRPBF | LT1122CCN8 | 8-Lead Plastic DIP | –40°C to 85°C |
LT1122DCN8#PBF | LT1122DCN8#TRPBF | LT1122DCN8 | 8-Lead Plastic DIP | –40°C to 85°C |
LT1122CS8#PBF | LT1122CS8#TRPBF | 1122C | 8-Lead Plastic SO | –40°C to 85°C |
LT1122DS8#PBF | LT1122DS8#TRPBF | 1122D | 8-Lead Plastic SO | –40°C to 85°C |
OBSOLETE PACKAGE | ||||
LT1122AMJ8#PBF | LT1122AMJ8#TRPBF | LT1122AMJ8 | 8-Lead Hermetic DIP | –55°C to 125°C |
LT1122BMJ8#PBF | LT1122BMJ8#TRPBF | LT1122BMJ8 | 8-Lead Hermetic DIP | –55°C to 125°C |
LT1122CMJ8#PBF | LT1122CMJ8#TRPBF | LT1122CMJ8 | 8-Lead Hermetic DIP | –55°C to 125°C |
LT1122DMJ8#PBF | LT1122DMJ8#TRPBF | LT1122DMJ8 | 8-Lead Hermetic DIP | –55°C to 125°C |
LT1122ACJ8#PBF | LT1122ACJ8#TRPBF | LT1122ACJ8 | 8-Lead Hermetic DIP | –40°C to 85°C |
LT1122BCJ8#PBF | LT1122BCJ8#TRPBF | LT1122BCJ8 | 8-Lead Hermetic DIP | –40°C to 85°C |
LT1122CCJ8#PBF | LT1122CCJ8#TRPBF | LT1122CCJ8 | 8-Lead Hermetic DIP | –40°C to 85°C |
LT1122DCJ8#PBF | LT1122DCJ8#TRPBF | LT1122DCJ8 | 8-Lead Hermetic DIP | –40°C to 85°C |
Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on nonstandard lead based finish parts.
For more information on lead free part markings, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
SYMBOL | PARAMETER | CONDITIONS | LT1122AM/BM LT1122AC/BC MIN TYP MAX | LT1122CM/DM LT1122CC/DC LT1122CS/DS MIN TYP MAX | UNITS | ||||
VOS | Input Offset Voltage | 120 | 600 | 130 | 900 | µV | |||
IOS | Input Offset Current | 4 | 40 | 5 | 50 | pA | |||
IB | Input Bias Current | 10 | 75 | 12 | 100 | pA | |||
Input Resistance Differential Common Mode | VCM = –10V to 8V VCM = 8V to 11V | 1012 1012 1011 | 1012 1012 1011 | Ω Ω Ω | |||||
Input Capacitance | 4 | 4 | pF | ||||||
SR | Slew Rate | AV = – 1 | 60 | 80 | 50 | 75 | V/µs | ||
Settling Time (Note 2) | 10V to 0V, – 10V to 0V 100% Tested: A- and C-Grades to 1mV at Sum Node B- and D-Grades to 1mV at Sum Node All Grades to 0.5mV at Sum Node | 340 350 450 | 540 | 350 360 470 | 590 | ns ns ns | |||
GBW | Gain-Bandwidth Product Power Bandwidth | VOUT = 20VP-P | 14 1.2 | 13 1.1 | MHz MHz | ||||
AVOL | Large-Signal Voltage Gain | VOUT = ±10V, RL = 2kΩ VOUT = ±10V, RL = 600Ω | 180 130 | 500 250 | 150 110 | 450 220 | V/mV V/mV | ||
CMRR | Common-Mode Rejection Ratio | VCM = ±10V | 83 | 99 | 80 | 98 | dB | ||
Input Voltage Range | (Note 4) | ±10.5 | ±11 | ±10.5 | ±11 | V | |||
PSRR | Power Supply Rejection Ratio | VS = ±10V to ±18V | 86 | 103 | 82 | 101 | dB | ||
Input Noise Voltage | 0.1Hz to 10Hz | 3.0 | 3.3 | µVP-P | |||||
Input Noise Voltage Density | fO = 100Hz fO = 10kHz | 25 14 | 27 15 | nV/√Hz nV/√Hz | |||||
Input Noise Current Density | fO = 100Hz, fO = 10kHz | 2 | 2 | fA/√Hz | |||||
VOUT | Output Voltage Swing | RL = 2kΩ RL = 600Ω | ±12 ±11.5 | ±12.5 ±12 | ±12 ±11.5 | ±12.5 ±12 | V V | ||
IS | Supply Current | 7.5 | 10 | 7.8 | 11 | mA | |||
Minimum Supply Voltage | (Note 5) | ±5 | ±5 | V | |||||
Offset Adjustment Range | RPOT ≥ 10k, Wiper to V+ | ±4 | ±10 | ±4 | ±10 | mV |
SYMBOL | PARAMETER | CONDITIONS | LT1122AC/BC MIN TYP MAX | LT1122CC/DC LT1122CS/DS MIN TYP MAX | UNITS | |||||
VOS | Input Offset Voltage | l | 350 | 1400 | 400 | 2000 | µV | |||
Average Temperature Coefficient of Input Offset Voltage | l | 5 | 18 | 6 | 25 | µV/°C | ||||
IOS | Input Offset Current | l | 12 | 150 | 15 | 200 | pA | |||
IB | Input Bias Current | l | 80 | 600 | 90 | 800 | pA | |||
AVOL | Large-Signal Voltage Gain | VOUT = ±10V, RL ≥ 2kΩ | l | 120 | 380 | 100 | 340 | V/mV | ||
CMRR | Common-Mode Rejection Ratio | VCM = ±10V | l | 82 | 98 | 78 | 96 | dB | ||
PSRR | Power Supply Rejection Ratio | VS = ±10V to ±17V | l | 84 | 101 | 80 | 99 | dB | ||
Input Voltage Range | l | ±10 | ±10.8 | ±10 | ±10.8 | V | ||||
VOUT | Output Voltage Swing | RL = 2kΩ | l | ±11.5 | ±12.4 | ±11.5 | ±12.4 | V | ||
SR | Slew Rate | AV = –1 | l | 50 | 70 | 40 | 65 | V/µs |
SYMBOL | PARAMETER | CONDITIONS | LT1122AM/BM MIN TYP MAX | LT1122CS/DS MIN TYP MAX | UNITS | |
VOS | Input Offset Voltage | l | 650 2400 | 800 3400 | µV | |
Average Temperature Coefficient of Input Offset Voltage | l | 6 18 | 7 25 | µV/°C | ||
IOS | Input Offset Current | l | 0.5 6 | 0.6 9 | nA | |
IB | Input Bias Current | l | 6 25 | 7 35 | nA | |
AVOL | Large-Signal Voltage Gain | VOUT = ±10V, RL ≥ 2kΩ | l | 70 230 | 60 200 | V/mV |
CMRR | Common-Mode Rejection Ratio | VCM = ±10V | l | 80 97 | 76 94 | dB |
PSRR | Power Supply Rejection Ratio | VS = ±10V to ±17V | l | 83 100 | 78 98 | dB |
Input Voltage Range | l | ±10 ±10.5 | ±10 ±10.5 | V | ||
VOUT | Output Voltage Swing | RL = 2kΩ | l | ±11.3 ±12.1 | ±11.3 ±12.1 | V |
SR | Slew Rate | AV = –1 | l | 45 60 | 35 55 | V/µs |
SYMBOL | PARAMETER | CONDITIONS | LT1122AM/BM MIN TYP MAX | LT1122CS/DS MIN TYP MAX | UNITS | |
VOS | Input Offset Voltage | l | 450 1900 | 500 2700 | µV | |
Average Temperature Coefficient of Input Offset Voltage | l | 6 20 | 7 28 | µV/°C | ||
IOS | Input Offset Current | l | 30 600 | 40 900 | pA | |
IB | Input Bias Current | l | 230 2000 | 260 2700 | pA | |
AVOL | Large-Signal Voltage Gain | VOUT = ±10V, RL ≥ 2kΩ | l | 95 340 | 80 300 | V/mV |
CMRR | Common-Mode Rejection Ratio | VCM = ±10V | l | 80 98 | 76 96 | dB |
PSRR | Power Supply Rejection Ratio | VS = ±10V to ±17V | l | 83 100 | 78 98 | dB |
Input Voltage Range | l | ±10 ±10.6 | ±10 ±10.6 | V | ||
VOUT | Output Voltage Swing | RL = 2kΩ | l | ±11.3 ±12.2 | ±11.3 ±12.2 | V |
SR | Slew Rate | AV = –1 | l | 45 60 | 35 60 | V/µs |
Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime.
Note 2: The LT1122 is measured in an automated tester in less than one second after application of power. Depending on the package used, power dissipation, heat sinking, and air flow conditions, the fully warmed up chip temperature can be 10°C to 50°C higher than the ambient temperature.
Note 3: Settling time is 100% tested for A- and C-grades using the settling time test circuit shown. This test is not included in quality assurance sample testing.
Note 4: Input voltage range functionality is assured by testing offset voltage at the input voltage range limits to a maximum of 4mV
(A, B grades), to 5.7mV (C, D grades).
Note 5: Minimum supply voltage is tested by measuring offset voltage to 7mV maximum at ±5V supplies.
Note 6: The LT1122 is not tested and not quality-assurance-sampled at –40°C and at 85°C. These specifications are guaranteed by design,
correlation and/or inference from –55°C, 0°C, 25°C, 70°C and/or 125°C tests.
DEVICE UNDER TEST
5pF
10V (REGULATED)
51Q
7
1
4 HA5002
2
15V
8 51Q
2k
1% 2 –
2k 1%
15V
7
LT1122 6
4 6 1
74LS00 5
GROUND ALL
OTHER INPUTS 2
16 5
15
–15V
VIN
3 +
5.1k*
1%
4
–15V
5.1k
1%
TTL 1 3
IN 2
3
4
LTC201A
5
6
7
14 (MEASURE INPUT PULSE HERE)
13
12
11
10
15V
0.1µF
8
–10V (REGULATED)
+
1µF TANT
9
NO CONNECTION ON PINS 10, 11, 12, 14, AND 15
1k
SETTLING TIME OUTPUT
15V
7 + 3
6
LT1223
–
2
15V
51Q 8 1
2
7
HA5002
5
4 51Q
SUMMING NODE OUTPUT
0.1µF
–15V
+
1µF TANT
TYPICAL SUPPLY BYPASSING FOR EACH AMP/BUFFER
(20 TIMES SUM NODE OUTPUT)
1N5712
–15V
4
1.5k –15V
79Q
*THIS RESISTOR CAN BE ADJUSTED TO NULL OUT ALL OFFSETS AT THE SETTLING TIME OUTPUT. THE AUTOMATED TESTER USES A SEPARATE AUTOZERO CIRCUIT.
1N5712
LT1122•TA02
1mV/DIV AT SUM NODE
1mV/DIV AT SUM NODE
1mV/DIV AT SUM NODE
100ns/DIV 1122 G01
100ns/DIV 1122 G02
100ns/DIV 1122 G03
VS = ±15V TA = 25°C
30
1mV/DIV AT SUM NODE
PEAK-TO-PEAK OUTPUT SWING (V)
25
5V/DIV
20
15
100ns/DIV 1122 G04
AV = 1
200ns/DIV
10
1122 G05 5
0
100k
1M 10M 100M FREQUENCY (Hz)
1122 TPC01
120
100
80
GAIN (dB)
60
40
20
0
–20
–40
VS = ±15V TA = 25°C | |||||||
20
GAIN (dB)
10
VS = ±15V TA = 25°C CL = 15pF
0
10
80
100
120
140
160
180
200
120
COMMON-MODE REJECTION RATIO (dB)
100
PHASE SHIFT (DEGREES)
80
60
40
20
0
VS = ±15V TA = 25°C | |||||
1 10 100 1k 10k 100k 1M 10M 100M 1M
10M
100M
100
1k 10k
100k
1M 10M
100M
FREQUENCY (Hz)
1122 TPC02
FREQUENCY (Hz)
1122 TPC03
FREQUENCY (Hz)
1122 TPC04
800
NUMBER OF UNITS
600
400
200
0
3370 UNITS TESTED IN ALL PACKAGES
VS = ±15V TA = 25°C
(NOT WARMED UP)
100k
INPUT BIAS AND OFFSET CURRENTS (pA)
30k 10k 3k 1k 300
100
30
10
3
1
VS = ±15V VCM = 0V
BIAS CURRENT
RENT
OFFSET CUR
120
INPUT BIAS AND OFFSET CURRENT (pA)
100
80
60
40
20
0
VS = ±15V TA = 25°C
(NOT-WARMED UP)
OFFSET CURRENT
BIAS CURRENT
–900
–500 –100 100 500
900
0 25 50 75 100 125
15 10 5 0
5 10 15
INPUT OFFSET VOLTAGE (µV)
CHIP TEMPERATURE (°C)
COMMON-MODE INPUT VOLTAGE (V)
1122 TPC05
1122 TPC06
1122 TPC07
250
1000
VS = ±15V TA = 25°C | |||||||
VS = ±15V
CHANGE IN OFFSET VOLTAGE (µV)
200
150
100
50
TA = 25°C
SO PACKAGE
N PACKAGE J PACKAGE
VOLTAGE NOISE DENSITY (nV/√Hz)
NOISE VOLTAGE (1µV/DIV)
100
IN STILL AIR (SO PACKAGE SOLDERED ONTO BOARD)
1
0 1 2 3
10
1 3 10
30 100 300 1k 3k
10k
0 2 4 6
8 10
TIME AFTER POWER ON (MINUTES)
1122 TPC08
FREQUENCY (Hz)
1122 TPC09
TIME (SECONDS)
1122 TPC10
TOTAL HARMONIC DISTORTION + NOISE (%)
0.1
TA = 25°C VS = ±15V
ZL = 5k//15pF
0.1
INTERMODULATION DISTORTION (IMD) (%)
0.1
VS = ±15V TA = 25°C AV = –10
0.01
0.001
0.0001
VO = 7V RMS
AV = –50
AV = –10
AV = –1
0.01
0.001
0.0001
AV = 10
AV =1
AV = 50
TA = 25°C VS = ±15V
ZL = 5k//15pF
VO = 7V RMS
0.01
0.001
0.0001
VO = 7V RMS
ZL = 5k//15pF
LF156
LT1122
20 100 1k
FREQUENCY (Hz)
10k 20k
20 100 1k
TOTAL HARMONIC DISTORTION + NOISE (%)
FREQUENCY (Hz)
10k 20k
3k 10k 20k
FREQUENCY (Hz)
1122 TPC11
1122 TPC12
*SEE LT1115 DATA SHEET FOR DEFINITION
OF CCIF TESTING 1122 TPC13
Settling time test circuits shown on some competitive devices’ data sheets require:
A“flat top” pulse generator. Unfortunately, flat top pulse generators are not commercially available.
A variable feedback capacitor around the device under test. This capacitor varies over a four-to-one range. Presumably, as each op amp is measured for settling time, the capacitor is fine tuned to optimize settling time for that particular device.
A small inductor load to optimize settling.
The power supply connections to the LT1122 must maintain a low impedance to ground over a bandwidth of 20MHz. This is especially important when driving a significant resistive or capacitive load, since all current delivered to the load comes from the power supplies. Multiple high quality bypass capacitors are recommended for each power supply line in any critical application. A 0.1µF ceramic and a 1µF electrolytic capacitor, as shown, placed as close as possible to the amplifier (with short lead lengths to power supply common) will assure adequate high frequency bypassing, in most applications.
V+
The LT1122’s settling time is 100% tested in the test circuit shown. No “flat top” pulse generator is required. The test circuit can be readily constructed, using commercially available ICs. Of course, standard high frequency board construction techniques should be followed. All LT1122s are measured with a constant feedback capacitor. No fine
7
2 –
LT1122
3 +
4
+
1µF 0.1µF
6
+
1µF 0.1µF
tuning is required.
V–
1122 TA03
Pin 8 of the LT1122 can be used to change the input stage operating current of the device. Shorting Pin 8 to the posi- tive supply (Pin 7) increases slew rate and bandwidth by about 25%, but at the expense of a reduction in phase margin by approximately 18 degrees. Unity-gain capacitive load handling decreases from typically 500pF to 100pF.
Conversely, connecting a 15k resistor from Pin 8 to ground pulls 1mA out of Pin 8 (with V+ = 15V). This reduces slew rate and bandwidth by 25%. Phase margin and capacitive load handling improve; the latter typically increasing to 800pF.
When the feedback around the op amp is resistive (RF), a pole will be created with RF, the source resistance and capacitance (RS, CS), and the amplifier input capacitance (CIN ≈ 4pF). In low closed-loop gain configurations and with RS and RF in the kilohm range, this pole can create excess phase shift and even oscillation. A small capaci- tor (CF) in parallel with RF eliminates this problem. With RS (CS + CIN) = RFCF, the effect of the feedback pole is completely removed.
CF
RF
–
As with most high speed amplifiers, care should be taken with supply decoupling, lead dress and component placement.
RS CS
CIN
+
OUTPUT
1122 TA04
–15V
OUTPUT
4.7k
560k | 430pF | 50k | DISTORTION TRIM |
4kHz JCUT
47k
+
LT1122
–
LT1010
LT1004 2.5V
4.7k 5k
4.7k
MOUNT IN CLOSE PROXIMITY
OUTPUT AMPLITUDE TRIM
15V
–
LT1006
+
+
10µF
470W
–
LT1122
+
–15V
2k
1/4 LTC201
15V
15V
1M 560k
Q1 2N3904
GROUND CRYSTAL CASE
= VACTEC VTL5C10 OR CLAIREX CLM410
100k
= 1N4148
1122 TA05
(Reference LTC DWG # 05-08-1510 Rev I)
255 .015* 477 0.381) | (10.160) MAX | ||||||||
8 | 7 | 6 | 5 | ||||||
1 | 2 | 3 | 4 |
. (6.
.400*
.300 – .325
(7.620 – 8.255)
.045 – .065
(1.143 – 1.651)
.130 .005
(3.302 0.127)
NOTE:
.008 – .015
(0.203 – 0.381)
–.015
.325 +.035
–0.381
8.255 +0.889
INCHES
.065
(1.651) TYP
.100 (2.54)
BSC
.120
(3.048) MIN
.018 .003
(0.457 0.076)
.020
(0.508) MIN
N8 REV I 0711
DIMENSIONS ARE MILLIMETERS
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
.045 – .065
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE (1.143 – 1.651) OR TIN PLATE LEADS
.200
(5.080) MAX
1 2 3 4
.220 – .310
(5.588 – 7.874)
.025
(0.635) RAD TYP
6 5
.023 – .045
(0.584 – 1.143) HALF LEAD OPTION
.045 – .068
(1.143 – 1.650) FULL LEAD OPTION
.300 BSC (7.62 BSC)
8 7
MAX
(Reference LTC DWG # 05-08-1110)
CORNER LEADS OPTION (4 PLCS)
.005
(0.127) MIN
.405 (10.287)
.015 – .060
(0.381 – 1.524)
.008 – .018
(0.203 – 0.457)
0° – 15°
For more information www.linear.com/LT1122
1122fb
.125
3.175
MIN
J8 0801
.100
(2.54) BSC
.014 – .026
(0.360 – 0.660)
11
(Reference LTC DWG # 05-08-1610 Rev G)
.050 BSC
.045 .005
.189 – .197
(4.801 – 5.004)
NOTE 3
8 7 6 5
.245
MIN
.160 .005
.228 – .244
(5.791 – 6.197)
.150 – .157
(3.810 – 3.988)
NOTE 3
.030 .005
TYP
RECOMMENDED SOLDER PAD LAYOUT
.010 – .020 45
(0.254 – 0.508)
.008 – .010
(0.203 – 0.254)
0– 8 TYP
1 2 3 4
.053 – .069
(1.346 – 1.752)
.004 – .010
(0.101 – 0.254)
NOTE:
.016 – .050
(0.406 – 1.270)
INCHES
.014 – .019
(0.355 – 0.483) TYP
.050
(1.270) BSC
DIMENSIONS IN (MILLIMETERS)
DRAWING NOT TO SCALE
THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
PIN 1 CAN BE BEVEL EDGE OR A DIMPLE
SO8 REV G 0212
REV | DATE | DESCRIPTION | PAGE NUMBER |
B | 02/14 | Updated data sheet to current standards. New Order Information Table, Package Descriptions | 2, 10-12 |
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 representa- tion that the interconnecFtioornmofoitrseciirncfuoitrsmasadtieosncriwbewdwh.elrineienawr.icllonmot/inLTfr1in1g2e2on existing patent rights.
1122fb
13
200k
1%
20k
100k
200k
1%
1µF
50k
VIN
20k 1%
1%
–
LT1122
+
1% 1k
–
LT1122
+
EOUT DC
OUTPUT DC = RMS VALUE OF INPUT BANDWIDTH WITH 10VP-P INPUT = 2MHz
1122 TA06
PART NUMBER | DESCRIPTION | COMMENTS |
High Speed Precision JFET Op Amp | 23V/µs Min Slew Rate, 250µV VOS | |
Precision High Speed JFET Op Amps | 16V/µs Slew Rate, 150µV VOS | |
1MHz C-Load™ Stable JFET Op Amp | Capacitive Loads Up to 10nF | |
50MHz Low Noise CMOS Op Amp | 1pA IB, 100µV Max VOS, 1.5µVP-P, 0.1Hz to 10Hz Noise |
14
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 950F3o5r -m7o4r1e7information www.linear.com/LT1122 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LT1122
1122fb
LT 0214 REV B • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1991
Mouser Electronics
Authorized Distributor
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LT1122ACN8 LT1122DCN8 LT1122DS8#PBF LT1122BCN8#PBF LT1122DS8#TR LT1122CCN8 LT1122DCN8#PBF LT1122CS8#PBF LT1122DS8#TRPBF LT1122CS8#TR LT1122CS8 LT1122CCN8#PBF LT1122BCN8 LT1122DS8 LT1122ACN8#PBF LT1122CS8#TRPBF