LT1001 Precision Operational Amplifier FEATURES DESCRIPTIO n Guaranteed Low Offset Voltage The LT 1001 significantly advances the state-of-the- LT1001AM 15m V max art of precision operational amplifiers. In the design, LT1001C 60m V max processing, and testing of the device, particular atten- n Guaranteed Low Drift tion has been paid to the optimization of the entire LT1001AM 0.6m V/ C max distribution of several key parameters. Consequently, LT1001C 1.0m V/ C max the specifications of the lowest cost, commercial tem- n Guaranteed Low Bias Current perature device, the LT1001C, have been dramatically LT1001AM 2nA max improved when compared to equivalent grades of com- LT1001C 4nA max peting precision amplifiers. n Guaranteed CMRR Essentially, the input offset voltage of all units is less LT1001AM 114dB min than 50m V (see distribution plot below). This allows the LT1001C 110dB min LT1001AM/883 to be specified at 15m V. Input bias and n Guaranteed PSRR offset currents, common-mode and power supply re- LT1001AM 110dB min jection of the LT1001C offer guaranteed performance LT1001C 106dB min which were previously attainable only with expensive, n Low Power Dissipation selected grades of other devices. Power dissipation is LT1001AM 75mW max nearly halved compared to the most popular precision LT1001C 80mW max op amps, without adversely affecting noise or speed n Low Noise 0.3m V P-P performance. A beneficial by-product of lower dissipa- U tion is decreased warm-up drift. Output drive capability APPLICATIO S of the LT1001 is also enhanced with voltage gain guaranteed at 10mA of load current. For similar perfor- n Thermocouple amplifiers mance in a dual precision op amp, with guaranteed n Strain gauge amplifiers matching specifications, see the LT1002. Shown below n Low level signal processing is a platinum resistance thermometer application. n High accuracy data acquisition , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATIO Typical Distribution Linearized Platinum Resistance Thermometer of Offset Voltage with 0.025 C Accuracy Over 0 to 100 C V = 15V, T = 25 C S A 1MEG.** +15 R plat. 954 UNITS 20k 1k = 0C 330k* 200 GAIN FROM THREE RUNS 1.2k** TRIM 150 10k* 2 1m f 6 2 LT1001 100 10k* 6 3 LT1001 OUTPUT + 3 LINEARITY 0 TO 10V = + 200W TRIM 0 TO 100C 50 90k* 20k 10k* LM129 OFFSET TRIM 0 60 40 20 0 20 40 60 INPUT OFFSET VOLTAGE (V) * ULTRONIX 105A WIREWOUND Trim sequence: trim offset (0C = 1000.0W ), 1001 TA02 ** 1% FILM trim linearity (35C = 1138.7W ), trim gain PLATINUM RTD (100C = 1392.6W ). Repeat until all three 1001 TA01 118MF (ROSEMOUNT, INC.) points are fixed with 0.025C. 1001fb 1 NUMBER OF UNITS U ULT1001 ABSOLUTE MAXIMUM RATINGS (Note 1) Supply Voltage ...................................................... 22V Operating Temperature Range Differential Input Voltage ...................................... 30V LT1001AM/LT1001M (OBSOLETE) ..55 C to 150 C Input Voltage ........................................................ 22V LT1001AC/LT1001C .............................. 0 C to 125 C Output Short Circuit Duration ......................... Indefinite Storage: All Devices.......................... 65 C to 150 C Lead Temperature (Soldering, 10 sec.)................. 300 C PACKAGE/ORDER INFORMATION ORDER ORDER TOP VIEW V V OS OS PART NUMBER PART NUMBER TRIM 1 8 TRIM TOP VIEW IN 2 7 V+ OFFSET ADJUST LT1001ACN8 LT1001AMH/883 +IN 3 6 8 OUT + LT1001CN8 V+ LT1001MH 1 7 V 4 5 NC LT1001CS8 LT1001ACH 2 IN 6 OUT N8 PACKAGE S8 PACKAGE + LT1001CH 8 PIN PLASTIC DIP 8 PIN PLASTIC SO S8 PART MARKING 5 3 T = 150 C, q = 130 C/W (N) JMAX JA NC +IN 4 T = 150 C, q = 150 C/W (S) 1001 JMAX JA V (CASE) H PACKAGE METAL CAN ORDER J8 PACKAGE T = 150 C, q = 150 C/W, q = 45 C/W JMAX JA jc 8 PIN HERMETIC DIP PART NUMBER T = 150 C, q = 100 C/W (J) JMAX JA LT1001AMJ8/883 LT1001MJ8 LT1001ACJ8 LT1001CJ8 OBSOLETE PACKAGE OBSOLETE PACKAGE Consider the N8 and S8 Packages for Alternate Source Consider the N8 and S8 Packages for Alternate Source Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T = 25 C. V = 15V, unless otherwise noted A S LT1001AM/883 LT1001AC LT1001M/LT1001C SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS LT1001AM/883 7 15 Note 2 V Input Offset Voltage 18 60 m V OS LT1001AC 10 25 D V Long Term Input Offset Voltage OS Stability Notes 3 and 4 0.2 1.0 0.3 1.5 m V/month D Time I Input Offset Current 0.3 2.0 0.4 3.8 nA OS I Input Bias Current 0.5 2.0 0.7 4.0 nA b e Input Noise Voltage 0.1Hz to 10Hz (Note 3) 0.3 0.6 0.3 0.6 m V n p-p e Input Noise Voltage Density f = 10Hz (Note 6) 10.3 18.0 10.5 18.0 nV Hz n O f = 1000Hz (Note 3) 9.6 11.0 9.8 11.0 nV Hz O A Large Signal Voltage Gain R 2kW , V = 12V 450 800 400 800 V/mV VOL L O R 1kW V = 10V 300 500 250 500 V/mV L O CMRR Common Mode Rejection Ratio V = 13V 114 126 110 126 dB CM PSRR Power Supply Rejection Ratio V = 3V to 18V 110 123 106 123 dB S R Input Resistance Differential Mode 30 100 15 80 MW in 1001fb 2 U W U U W WW