LT1022CN8

LT1022 High Speed, Precision JFET Input Operational Amplifier FEATURES ■ ■ DESCRIPTIO ■ ■ ■ ■ Guaranteed Slew Rate: 23V/µs Min Guaranteed Offset Voltage: 250µV Max – 55°C to 125°C: 750µV Max Guaranteed Drift: 5µV/°C Max Guaranteed Bias Current: 70°C, 180pA Max 125°C, 4nA Max Gain-Bandwidth Product: 8.5MHz Typ Settling Time to 0.05% (10V Step): 0.9µs Typ The LT®1022 JFET input operational amplifier combines high speed and precision performance. A 26V/µs slew rate and 8.5MHz gain-bandwidth product are simultaneously achieved with offset voltage of typically 80µV, 1.5µV/°C drift, bias currents of 50pA at 70°C, 500pA at 125°C. The output delivers 20mA of load current without gain degradation. The 250 µV maximum offset voltage specification represents less than 1/2 least significant bit error in a 14-bit, 10V system. The LT1022A meets or exceeds all OP-16A and OP-16E specifications. It is faster and more accurate without stability problems at cold temperatures. The LT1022 can be used as the output amplifier for 12-bit current output D/A converters, as shown below. For a more accurate, lower power dissipation, but slower JFET input op amp, please refer to the LT1055 data sheet. , LTC and LT are registered trademarks of Linear Technology Corporation. APPLICATIO S ■ ■ ■ ■ ■ Fast D/A Output Amplifiers (12, 14, 16 Bits) High Speed Instrumentation Fast, Precision Sample and Hold Voltage-to-Frequency Converters Logarithmic Amplifiers TYPICAL APPLICATIO 12-Bit Voltage Output D/A Converter CF 2 0mA TO 2mA OR 4mA 3 12-BIT CURRENT OUTPUT D/A CONVERTER (e.g., 6012, 565 OR DAC-80) 15V Large-Signal Response LT1022 6 OUTPUT 0V TO 10V + 4 –15V 5V/DIV – 7 CF = 15pF TO 33pF SETTLING TIME TO 2mV (0.8 LSB) = 1.5µs TO 2µs LT1022 • TA01 AV = 1 CL = 100pF TA = 25°C VS = ± 15V U 0.5µs/DIV 1022fa U U 1 LT1022 ABSOLUTE (Note 1) AXI U RATI GS Operating Temperature Range LT1022AM/1022M (OBSOLETE).........–55°C to 125°C LT1022AC/1022C .................................... 0°C to 70°C Storage Temperature Range .................. –65°C to 150°C Lead Temperature (Soldering, 10 sec.)................. 300°C Supply Voltage ...................................................... ± 20V Differential Input Voltage ....................................... ± 40V Input Voltage ......................................................... ± 20V Output Short Circuit Duration .......................... Indefinite PACKAGE/ORDER I FOR ATIO TOP VIEW N/C BALANCE 1 –IN 2 +IN 3 4 V– 8 + 7V 6 OUT 5 BALANCE ORDER PART NUMBER LT1022AMH LT1022MH LT1022ACH LT1022CH METAL CAN H PACKAGE TJMAX = 150° C, θJA = 150°C/W, θJC = 45° C/W OBSOLETE PACKAGE Consider the N8 Package as an Alternate Source LT1022 • POI01 Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER VOS lOS IB Input Offset Voltage (Note 2) Input Offset Current Input Bias Current Input Resistance—Differential —Common Mode Input Capacitance en en in AVOL Input Noise Voltage Input Noise Voltage Density Input Noise Current Density Large Signal Voltage Gain Input Voltage Range CMRR PSRR VOUT SR Common-Mode Rejection Ratio Power Supply Rejection Ratio Output Voltage Swing Slew Rate VCM = ± 10.5V 0.1Hz to 10Hz CONDITIONS H Package N8 Package Fully Warmed Up Fully Warmed Up VCM = + 10V VS = ± 15V, TA = 25°C, VCM = 0V unless otherwise noted. LT1022AM LT1022AC TYP MAX 80 2 ±10 30 1012 1012 1011 4 2.5 28 14 1.8 150 130 ± 10.5 86 88 ±12 23 400 300 ± 12 94 104 ±13.2 26 50 20 4 120 100 ± 10.5 82 86 ± 12 18 250 10 ±50 100 LT1022M, LT1022CH LT1022CN8 MIN TYP MAX 100 160 2 ±10 30 1012 1012 1011 4 2.8 30 15 1.8 400 300 ± 12 92 102 ± 13.2 24 60 22 4 600 1000 20 ± 50 150 VCM = –11V to 8V VCM = 8V to 11V fO = 10Hz (Note 3) fO = 1kHz (Note 4) fO = 10Hz, 1kHz (Note 5) VO = ±10V RL = 2k RL = 1k VS = ± 10V to ±18V RL = 2k 2 U U W WW U W TOP VIEW BAL –IN +IN V– 1 2 3 4 8 7 6 5 N/C V+ OUT BAL ORDER PART NUMBER LT1022CN8 N8 PACKAGE 8-LEAD PDIP TJMAX = 100°C, θJA = 130°C/W MIN UNITS µV µV pA pA pA Ω Ω Ω pF µV/P-P nV/√Hz nV/√Hz fA√Hz V/mV V/mV V dB dB V V/µs 1022fa LT1022 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER GBW IS Gain-Bandwidth Product Supply Current Settling Time A = +1 or A = –1 10V Step to 0.05% 10V Step to 0.02% RPOT = 100k CONDITIONS f = 1MHz VS = ± 15V, TA = 25°C, VCM = 0V unless otherwise noted. LT1022AM LT1022AC TYP MAX 8.5 5.2 0.9 1.3 ±7 7.0 LT1022M, LT1022CH LT1022CN8 MIN TYP MAX 8.0 5.2 0.9 1.3 ±7 7.0 MIN UNITS MHz mA µs µs mV Offset Voltage Adjustment Range The ● denotes the specifications which apply over the full operating temperature range of VCM = 0V, 0°C ≤ TA ≤ 70°C. VS = ± 15V, unless otherwise noted. LT1022AC MIN TYP ● ● ● ● ● ● ● ● ● ● SYMBOL PARAMETER VOS Input Offset Voltage (Note 2) Average Temperature Coefficient of Input Offset Voltage IOS IB AVOL CMRR PSRR VOUT Input Offset Current Input Bias Current Large-Signal Voltage Gain Common Mode Rejection Ratio Power Supply Rejection Ratio Output Voltage Swing CONDITIONS H Package N8 Package H Package N8 Package (Note 6) Warmed Up, TA = 70°C Warmed Up, TA = 70°C VO = ±10V, RL = 2k VCM = ±10.4V VS = ± 10V to ± 18V RL = 2k MAX 480 5.0 80 ±200 MIN LT1022CH LT1022CN8 TYP MAX 180 300 1.8 3.0 18 ±60 1000 1700 9.0 15.0 100 ±250 UNITS µV µV µV/°C µV/°C pA pA V/mV dB dB V 140 1.3 15 ±50 80 85 86 ± 12 250 93 103 ± 13.1 60 80 84 ± 12 250 91 101 ± 13.1 The ● denotes the specifications which apply over the full operating temperature range of – 55°C ≤ TA ≤ 125°C. VS = ± 15V, VCM = 0V, unless otherwise noted. SYMBOL PARAMETER VOS Input Offset Voltage Average Temperature Coefficient of Input Offset Voltage IOS IB AVOL CMRR PSRR VOUT Input Offset Current Input Bias Current Large Signal Voltage Gain Common-Mode Rejection Ratio Power Supply Rejection Ratio Output Voltage Swing CONDITIONS (Note 2) (Note 6) Warmed Up, TA = 125°C Warmed Up, TA = 125°C VO = ± 10V, RL = 2k VCM = ±10.4V VS = ± 10V to ±17V RL = 2k ● ● ● ● ● ● ● ● MIN LT1022AM TYP 230 1.5 0.3 ± 0.5 MAX 750 5.0 2.0 ± 4.0 MIN LT1022M TYP 300 2.0 0.30 ± 0.7 MAX 1500 9.0 3.0 ± 6.0 UNITS µV µV/°C nA nA V/mV dB dB V 40 85 86 ± 12 120 92 102 ± 12.9 35 80 84 ± 12 120 90 100 ± 12.9 Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Offset voltage is measured under two different conditions: (a) approximately 0.5 seconds after application of power; (b) at TA = 25°C, with the chip self-heated to approximately 45°C to account for chip temperature rise when the device is fully warmed up. Note 3: 10Hz noise voltage density is sample tested on every lot of A grades. Devices 100% tested at 10Hz are available on request. Note 4: This parameter is tested on a sample basis only. Note 5: Current noise is calculated from the formula: in = (2qIB)1/2, where q = 1.6 • 10 –19 coulomb. The noise of source resistors up to 1GΩ swamps the contribution of current noise. Note 6: Offset voltage drift with temperature is practically unchanged when the offset voltage is trimmed to zero with a 100k potentiometer between the balance terminals and the wiper tied to V +. Devices tested to tighter drift specifications are available on request. 1022fa 3 LT1022 TYPICAL PERFOR A CE CHARACTERISTICS Gain vs Frequency 140 VS = ±15V 120 100 TA = 25°C GAIN (dB) GAIN (dB) SLEW RATE (V/µs) 20 CL = 10pF 10 GAIN 120 140 160 PHASE CL = 300pF VS = ±15V TA = 25°C CL = 300pF 1 3 180 200 220 CL = 10pF 240 100 PHASE SHIFT (DEGREES) 80 60 40 20 0 –20 1 10 100 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) LT1022 • TPC01 PHASE MARGIN (DEGREES) TA = 125°C TA = – 55°C Undistorted Output Swing vs Frequency 30 OUTPUT VOLTAGE SWING FROM 0V (V) PEAK-TO-PEAK OUTPUT SWING (V) VS = ±15V TA = 25°C 24 18 20mV/DIV 12 6 0 100k 1M FREQUENCY (Hz) LT1022 • TPC04 The typical behavior of many LT1022 parameters is identical to the LT1056. Please refer to the LT1055/1056 data sheet for the following typical performance characteristics: Input Bias and Offset Currents vs Temperature Input Bias Current Over the Common-Mode Range Distribution of Input Offset Voltage (H and N8 Package) Distribution of Offset Voltage Drift with Temperature Warm-Up Drift Long Term Drift of Representative Units 0.1Hz to 10Hz Noise Voltage Noise vs Frequency Noise vs Chip Temperature Short Circuit Current vs Time Output Impedance vs Frequency Common Mode Range vs Temperature Common Mode and Power Supply Rejections vs Temperature Common Mode Rejection Ratio vs Frequency Power Supply Rejection Ratio vs Frequency Voltage Gain vs Temperature Supply Current vs Supply Voltage Output Swing vs Load Resistance 4 UW 10M Gain, Phase Shift vs Frequency 30 CLMAX ≈ 500pF (AV = +1) 80 100 40 Phase Margin, Gain Bandwidth Product, Slew Rate vs Temperature VS = ±15V CL = 10pF 30 SLEW 20 GBW (f = 1MHz) 60 12 11 10 9 8 7 50 θM 6 GAIN BANDWIDTH PRODUCT (MHz) 0 –10 10 30 FREQUENCY (MHz) 40 –50 –25 50 25 0 75 TEMPERATURE (°C) 100 125 LT1022 • TPC02 LT1022 • TPC03 Small-Signal Response 10 Settling Time 10mV 5mV 2mV 5 1mV 0.5mV 0 2mV VS = ±15V TA = 25°C –5 5mV 10mV –10 0 1 1mV 2 0.5mV 3 LT1022 • TPC05 AV = + 1 CL = 100pF TA = 25°C VS = ± 15V 0.2µs/DIV SETTLING TIME (µs) 1022fa LT1022 APPLICATIO S I FOR ATIO The LT1056 applications information is directly applicable to the LT1022. Please consult the LT1055/1056 data sheet for details on: (1) plug-in compatibility to industry standard devices (2) offset nulling (3) achieving picoampere/microvolt performance TYPICAL APPLICATIO S Fast Piezoelectric Accelerometer 1pF TO 5pF ENDEVCO #2215 ACCELEROMETER 2 U (4) phase-reversal protection (5) high speed operation (including settling time test circuit) (6) noise performance (7) simplified circuit schematic 1010Ω W U UU – + 15V 7 LT1022 6 OUTPUT 3 4 –15V LT1022 • TA03 1022fa 5 LT1022 TYPICAL APPLICATIO S 10Hz to 1MHz Voltage-to-Frequency Converter 1.8k 15V 2N2222 100k 2N2222 10pF 1.8k 100pF (POLYSTYRENE) 15V INPUT 0V TO 10V 5k 22.1k (METAL FILM) 1k 1 1k 7 LT1011 3 4 = 1N4148 –15V 6 – + U 10k 1000pF 1.8k 15V 2 20k 2N2222 TTL OUTPUT + – 1 8 7 4 1.8k 2 – + 15V 7 6 LT1022 LT1011 3 4.7k 3 4 –15V 15V 8 200k –15V 100k LT1009 2 0.1µF 1.8k –15V 1.8k 15V LT1022 • TA04 1022fa LT1022 TYPICAL APPLICATIO S PIN Photodiode-to-Frequency Converter 5pF FULL-SCALE TRIM 15V 1.8k 4.7k LM329 15V 7 6 10M LIGHT INPUT –15V 3.3M 10k DARK CURRENT TRIM LT1022 3 1k 1k 7 LT1011 1 4 –15V 3 SCALE FACTOR = 1nW/Hz AT 900 NANOMETERS FROM 20nW TO 2mW = HEWLETT PACKARD PHOTODIODE HP5082-4204 = 1N4148 † POLYSTYRENE * SELECT VALUE FOR 2mW IN = 2MHz OUT LT1022 • TA05 – + U 47pF*† 15V 2N2222 100k 2N2222 2pF 1.8k 10k 1000pF† 1.8k 15V 2 20k 2N2222 TTL OUTPUT 20Hz ← 2MHz 4.7k + – 1 8 7 4 1.8k LT1011 3 2 – + 4 –15V 15V 8 2 200k –15V 100k LT1004 2.5V 1.8k 0.1µF –15V 1.8k 15V 1022fa 7 LT1022 TYPICAL APPLICATIO S Wide Bandwidth Absolute Value Circuit 10k* 10pF 10k* 10k* 10pF INPUT ±10V VIN1 VIN2 8 U 15V 10k* 2 1N4148 6 15V 2 – + 7 LT1022 – + 7 LT1022 6 OUTPUT 0V TO 10V 3 3 4 –15V 10k* 1N4148 4 –15V *0.1% 1% ACCURACY TO 300kHz 5% ACCURACY TO 700kHz LT1022 • TA06 Fast, Differential Input Current Source 15V R* 2 – + 7 LT1022 6 10pF R* IOUT = VIN2 – VIN1 R R* 3 4 –15V R* IOUT RL *MATCH TO 0.01% FULL-SCALE POWER BANDWIDTH = 1MHz FOR IOUTR = 8VP-P = 400kHz FOR IOUTR = 20VP-P MAXIMUM IOUT = 10mAP-P IOUTP-P • RL COMMON-MODE VOLTAGE AT LT1022 INPUT = 2 LT1022 • TA07 1022fa LT1022 TYPICAL APPLICATIO S High Output Current Op Amp 15V RS 2 15V CF 6 LT1010 10k OUTPUT SLEW RATE = 26V/µs IOUT = 150mA CL CAN BE 1µF AV = +1, CF = 1000pF AV = –1, CF = 10pF LT1022 • TA08 U – + 7 LT1022 3 4 –15V –15V Low Distortion Sine Wave Oscillator 15V 2 0.033µF † # 327 LAMP 430Ω 6 OUTPUT 0.033µF† – + 7 LT1022 3 4 –15V 10k 953Ω* 953Ω* 10k * 1% FILM 10k DUAL POTENTIOMETER — MATCH TRACKING TO 0.1% † MATCH CAPACITORS TO 0.1% 5kHz TO 50kHz RANGE DISTORTION < 0.1% AMPLITUDE = 18VP-P LT1022 • TA09 1022fa 9 LT1022 TYPICAL APPLICATIO S Fast, Precision Sample-And-Hold 1k – INPUT 330pF LT1022 LT1010 + LEVEL SHIFT 15V 39pF HP5082-2810 3k 1N4148 4.7k* 1.5k TTL INPUT 1k 2N2369 20k 1N4148 –15V 0.1µF 820Ω 820Ω 470Ω 1000pF 2N2369 16ns APERTURE TIME 2µs ACQUISITION TIME TO 0.01% SAMPLE-AND-HOLD OFFSET < 250µV HOLD SETTLING < 100ns 10 U SAMPLE-AND-HOLD SIGNAL PATH 2N4393 2k – LT1022 OUTPUT + 2N2222 2N2907 1000pF POLYSTYRENE 10k HOLD STEP COMPENSATION –15V 20pF 15pF 13k 5.1k HP5082-2810 LT318A 2N2222 5k HOLD STEP COMPENSATION TRIM – + 3.5k LT1020 • TA10 1022fa LT1022 PACKAGE DESCRIPTIO SEATING PLANE 0.010 – 0.045* (0.254 – 1.143) 0.016 – 0.021** (0.406 – 0.533) 45°TYP 0.028 – 0.034 (0.711 – 0.864) 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 H Package 8-Lead TO-5 Metal Can (.200 Inch PCD) (Reference LTC DWG # 05-08-1320) 0.335 – 0.370 (8.509 – 9.398) DIA 0.305 – 0.335 (7.747 – 8.509) 0.040 (1.016) MAX 0.050 (1.270) MAX GAUGE PLANE 0.165 – 0.185 (4.191 – 4.699) REFERENCE PLANE 0.500 – 0.750 (12.700 – 19.050) 0.027 – 0.045 (0.686 – 1.143) PIN 1 0.200 (5.080) TYP 0.110 – 0.160 (2.794 – 4.064) INSULATING STANDOFF *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND 0.045" BELOW THE REFERENCE PLANE 0.016 – 0.024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 – 0.610) H8(TO-5) 0.200 PCD 1197 OBSOLETE PACKAGE 1022fa 11 LT1022 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 0.255 ± 0.015* (6.477 ± 0.381) 1 0.300 – 0.325 (7.620 – 8.255) 2 3 4 0.130 ± 0.005 (3.302 ± 0.127) 0.045 – 0.065 (1.143 – 1.651) 0.065 (1.651) TYP 0.125 (3.175) 0.020 MIN (0.508) MIN 0.018 ± 0.003 (0.457 ± 0.076) N8 1098 0.009 – 0.015 (0.229 – 0.381) +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) 1022fa 12 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● LW/TP 0902 1K REV A • PRINTED IN USA www.linear.com  LINEAR TECHNOLOGY CORPORATION 1985