LT1012A/LT1012 Picoamp Input Current, Microvolt Offset, Low Noise Op Amp FEATURES DESCRIPTIO n OP-07 Type Performance: The LT 1012 is an internally compensated universal at 1/8th of OP-07s Supply Current precision operational amplifier which can be used in at 1/20th of OP-07s Bias and Offset Currents practically all precision applications. The LT1012 n Guaranteed Offset Voltage: 25m V Max combines picoampere bias currents (which are n Guaranteed Bias Current: 100pA Max maintained over the full 55 C to 125 C temperature n Guaranteed Drift: 0.6m V/ C Max range), microvolt offset voltage (and low drift with time n Low Noise, 0.1Hz to 10Hz: 0.5m V and temperature), low voltage and current noise, and P-P n Guaranteed Low Supply Current: 500m A Max low power dissipation. The LT1012 achieves precision n Guaranteed CMRR: 114dB Min operation on two Ni-Cad batteries with 1mW of power n Guaranteed PSRR: 114dB Min dissipation. Extremely high common mode and n Guaranteed Operation at 1.2V Supplies power supply rejection ratios, practically unmeasurable U warm-up drift, and the ability to deliver 5mA load current APPLICATIO S with a voltage gain of one million round out the LT1012s superb precision specifications. n Replaces OP-07 While Saving Power n Precision Instrumentation The all around excellence of the LT1012 eliminates the n Charge Integrators necessity of the time consuming error analysis procedure n Wide Dynamic Range Logarithmic Amplifiers of precision system design in many applications the n Light Meters LT1012 can be stocked as the universal internally n Low Frequency Active Filters compensated precision op amp. n Thermocouple Amplifiers , LTC and LT are registered trademarks of Linear Technology Corporation. Protected by U. S. patents 4,575,685 and 4,775,884 TYPICAL APPLICATIO 250V Common Mode Range Instrumentation Amplifier (A = 1) Typical Distribution of Input V Offset Voltage R1 R5 1M 975k 200 IN 3 4 1 1140 UNITS V = 15V S FROM THREE T = 25C A 50k OPTIONAL R2 R6 6V TO 18V RUNS V = 0V CM 160 CMRR 25k 20k TRIM 7 2 2 120 6 R3 OUT LT1012 1M 3 COMMON +IN 7 6 + 80 MODE 4 R1 TO R6: VISHAY 444 INPUT R4 ACCUTRACT THIN FILM 250V 19.608k SIP NETWORK 40 6V TO 18V X : VISHAY 444 PIN NUMBERS 5 VISHAY INTERTECHNOLOGY, INC 63 LINCOLN HIGHWAY 0 40 20 0 20 40 MALVERN, PA 19355 INPUT OFFSET VOLTAGE (V) COMMON MODE REJECTION RATIO = 74dB (RESISTOR LIMITED) LT1012A TA02 WITH OPTIONAL TRIM = 130dB OUTPUT OFFSET (TRIMMABLE TO ZERO) = 500V OUTPUT OFFSET DRIFT = 10V/C INPUT RESISTANCE = 1M LT1012A TA01 sn1012 1012afbs 1 NUMBER OF UNITS U ULT1012A/LT1012 ABSOLUTE AXI U RATI GS (Note 1) Supply Voltage ...................................................... 20V Operating Temperature Range Differential Input Current (Note 1) ...................... 10mA LT1012AM/LT1012M (OBSOLETE).... 55 C to 125 C Input Voltage ......................................................... 20V LT1012I/LT1012AI ............................. 40 C to 85 C Output Short Circuit Duration .......................... Indefinite LT1012AC/LT1012C LT1012D/LT1012S8 ................................ 0 C to 70 C Storage Temperature Range ................. 65 C to 150 C Lead Temperature (Soldering, 10 sec).................. 300 C UUW PACKAGE/ORDER I FOR ATIO TOP VIEW V OS TOP VIEW TRIM TOP VIEW V OS 8 + V V V V OS OS OS OS TRIM V 1 7 1 8 1 8 TRIM TRIM TRIM TRIM + + 2 7 2 7 IN V 2 6 IN V IN OUT + 3 + 6 3 + 6 +IN OUT +IN OUT 3 5 +IN OVER OVER OVER V 4 5 4 V 4 5 COMP COMP COMP V (CASE) S8 PACKAGE H PACKAGE N8 PACKAGE 8-LEAD PLASTIC SO 8-LEAD TO-5 METAL CAN 8-LEAD PDIP T = 100C, q = 170C/W T = 150C, q = 150C/W, q = 45C/W T = 100C, q = 130C/W JMAX JA JMAX JA JC JMAX JA ORDER PART NUMBER ORDER PART NUMBER ORDER PART NUMBER LT1012S8 LT1012AMH LT1012ACN8 LT1012IS8 LT1012MH LT1012AIN8 LT1012ACS8 LT1012ACH LT1012CN8 LT1012AIS8 LT1012CH LT1012DN8 LT1012DH LT1012IN8 S8 PART MARKING 1012 1012I 1012A OBSOLETE PACKAGE Consider the S8 or N8 Packages for Alternate Source 1012AI Consult LTC Marketing for parts specified with wider operating temperature ranges. sn1012 1012afbs 2 U WWW