LT1167 Single Resistor Gain Programmable, Precision Instrumentation Amplifier FEATURESDESCRIPTION n Single Gain Set Resistor: G = 1 to 10,000 The LT®1167 is a low power, precision instrumentation n Gain Error: G = 10, 0.08% Max amplifier that requires only one external resistor to set n Input Offset Voltage Drift: 0.3μV/°C Max gains of 1 to 10,000. The low voltage noise of 7.5nV/√Hz n Meets IEC 1000-4-2 Level 4 ESD Tests with (at 1kHz) is not compromised by low power dissipation Two External 5k Resistors (0.9mA typical for ± 2.3V to ±15V supplies). n Gain Nonlinearity: G = 10, 10ppm Max The part’s high accuracy (10ppm maximum nonlinearity, n Input Offset Voltage: G = 10, 60μV Max 0.08% max gain error (G = 10)) is not degraded even for n Input Bias Current: 350pA Max load resistors as low as 2k. The LT1167 is laser trimmed for n PSRR at G = 1: 105dB Min very low input offset voltage (40μV max), drift (0.3μV/°C), n CMRR at G = 1: 90dB Min high CMRR (90dB, G = 1) and PSRR (105dB, G = 1). n Supply Current: 1.3mA Max Low input bias currents of 350pA max are achieved with n Wide Supply Range: ±2.3V to ±18V the use of superbeta processing. The output can handle n 1kHz Voltage Noise: 7.5nV/√Hz capacitive loads up to 1000pF in any gain configuration n 0.1Hz to 10Hz Noise: 0.28μVP-P while the inputs are ESD protected up to 13kV (human n Available in 8-Pin PDIP and SO Packages body). The LT1167 with two external 5k resistors passes the IEC 1000-4-2 level 4 specification. APPLICATIONS The LT1167, offered in 8-pin PDIP and SO packages, re- n Bridge Amplifiers quires significantly less PC board area than discrete multi ■ Strain Gauge Amplifi ers op amp and resistor designs. ■ Thermocouple Amplifi ers The LT1167-1 offers the same performance as the LT1167, ■ Differential to Single-Ended Converters but its input current characteristic at high common mode ■ Medical Instrumentation voltage better supports applications with high input imped- L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. ance (see the Applications Information section). TYPICAL APPLICATIONSingle Supply Barometer VS Gain Nonlinearity R5 LUCAS NOVA SENOR 392k VS 3 NPC-1220-015-A-3L + 8 – 1 2 – 1/2 1 1 4 7 1 LT1490 5k LT1634CCZ-1.25 5k 2 – R1 2 4 825Ω 6 R6 LT1167 Y (100ppm/DIV) 1k G = 60 2 5k R2 5k 12Ω 8 5 6 + 3 3 + TO OFFSET R4 R 4-DIGIT SET 4 NONLINEARIT ADJUST 50k DVM 5 5 + R3 1167 TA02 1/2 7 OUTPUT VOLTAGE (2V/DIV) 50k G = 1000 LT1490 6 RL = 1k R8 – R7 V VOLTSINCHES Hg OUT = ±10V 100k 0.2% ACCURACY AT 25°C 50k 1.2% ACCURACY AT 0°C TO 60°C 2.800 28.00 VS = 8V TO 30V 3.000 30.00 3.200 32.00 1167 TA01 1167fc 1 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS BLOCK DIAGRAM THEORY OF OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATION PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS
