Datasheet LT1997-3 (Analog Devices) - 3

LT1997-3
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, –40°C < TA < 85°C for I-grade parts, –40°C < TA < 125°C for H-grade parts, otherwise specifications are at TA = 25°C. Difference Amplifier Configuration, V+ = 15V, V– = –15V, VCM = VOUT = VREF = VREF1 = VREF2 = 0V. VCMOP is the common mode voltage of the internal op amp. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
∆G Gain Error VOUT = ±10V G = 1 ±0.001 ±0.006 % l ±0.012 % G = 3 ±0.001 ±0.015 % l ±0.02 % G = 9 ±0.002 ±0.03 % l ±0.04 % ∆G/∆T Gain Drift vs Temperature (Note 6) VOUT = ±10V l ±0.2 ±1 ppm/°C GNL Gain Nonlinearity VOUT = ±10V ±1 ±2 ppm l ±3 ppm VOS Op Amp Offset Voltage (Note 9) V– < VCMOP < V+ – 1.75V ±20 ±60 µV l ±200 µV ∆VOS/∆T Op Amp Offset Voltage Drift (Note 6) V– < VCMOP < V+ – 1.75V l ±0.5 ±1.5 µV/°C IB Op Amp Input Bias Current V– + 0.25V < VCMOP < V+ – 1.75V –5 ±2 5 nA l –15 15 nA IOS Op Amp Input Offset Current V– + 0.25V < VCMOP < V+ – 1.75V –3 ±0.5 3 nA l –10 10 nA RIN Input Impedance (Note 8) Common Mode G = 1 l 19 22.5 26 kΩ G = 3 l 12.6 15 17.4 kΩ G = 9 l 10.5 12.5 14.5 kΩ Differential G = 1 l 38 45 52 kΩ G = 3 l 12.6 15 17.4 kΩ G = 9 l 4.2 5 5.8 kΩ CMRR Common Mode Rejection Ratio, G = 1, VCM = –28V to +26.5V 91 106 dB MS16 Package l 87 dB G = 3, VCM = –15V to +17.6V 90 99 dB l 86 dB G = 9, VCM = –15V to +14.7V 96 112 dB l 94 dB CMRR Common Mode Rejection Ratio, G = 1, VCM = –28V to +26.5V 91 101 dB DF14 Package l 87 dB G = 1, VCM = –90V to +90V, +INB = –INB = 0V, 83 94 dB VS = ±25V l 80 dB G = 1, VCM = –120V to +120V, +INC = –INC = 0V, 81 91 dB VS = ±25V, TA = –40°C to 125°C l 77 dB G = 1, VCM = –160V to +160V, +INC = –INC = 0V, 81 91 dB VS = ±25V, TA = –40°C to 85°C l 78 dB G = 3, VCM = –15V to +17.6V 90 98 dB l 86 dB G = 9, VCM = –15V to +14.7V 96 103 dB l 94 dB VCM Input Voltage Range (Note 7) +INA/–INA l –30 26.5 V +INA/–INA, +INC/–INC Connected to Ground l –160 160 V +INB/–INB l –15 17.6 V +INC/–INC l –15 14.7 V Rev A For more information www.analog.com 3 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS BLOCK DIAGRAM APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS