Datasheet LT1251, LT1256 (Analog Devices) - 7

LT1251/LT1256
W U TYPICAL PERFORMANCE CHARACTERISTICS Supply Current vs Supply Current vs Input Common Mode Range Full-Scale Voltage Full-Scale Current vs Temperature
14 14 V+ VS = ±5V VS = ±5V 12 INTERNAL RESISTORS 12 VC = 0V TA = 125°C V+ – 1 10 10 TA = – 55°C, 8 TA = 25°C 8 V+ – 2 T T A = – 55°C 6 A = 125°C 6 V– + 2 4 SUPPLY CURRENT (mA) 4 SUPPLY CURRENT (mA) COMMON MODE RANGE (V) V– +1 2 2 0 0 V– 0 0.5 1.0 1.5 2.0 2.5 0 100 200 300 400 500 –50 –25 0 25 50 75 100 125 FULL-SCALE VOLTAGE, VFS (V) FULL-SCALE CURRENT, IFS (µA) TEMPERATURE (°C) 1251/56 G20 1251/56 G21 1251/56 G22
Inverting Input Bias Current Inverting Input Bias Current Control and Full-Scale Amp Input vs Null Voltage vs Null Voltage Bias Current vs Input Voltage
400 200 –400 V V S = ±5V S = ±5V T T A = 25°C A = –55°C VS ≥ ±7.5V µA) T 300 V A = 25°C FS = 2.5V µA) 150 VFS = 1.25V –350 T 200 100 A = –55°C T –300 A = –55°C TA = 125°C T 100 A = 125°C 50 –250 TA = 25°C 0 0 –200 –100 –50 –150 TA = 125°C –200 –100 INPUT BIAS CURRENT (nA) –100 INVERTING INPUT BIAS CURRENT ( –300 INVERTING INPUT BIAS CURRENT ( –150 –50 –400 –200 0 0 50 100 150 200 250 300 0 20 40 60 80 100 120 140 160 0 1 2 3 4 5 NULL VOLTAGE, REFERENCED TO V– (mV) NULL VOLTAGE, REFERENCED TO V– (mV) INPUT VOLTAGE (V) 1251/56 G23 1251/56 G24 1251/56 G25
Positive Output Saturation Negative Output Saturation Output Short-Circuit Current Voltage vs Load Current Voltage vs Load Current vs Temperature
1.7 3.0 60 VS = ±5V VS = ±5V (V) 1.5 (V)– OUT 2.5 – V – V+ 1.3 OUT 50 2.0 TA = 25°C 1.1 T T A = –55°C A = –55°C TA = 25°C 1.5 TA = 125°C 0.9 40 1.0 0.7 TA = 125°C SATURATION VOLTAGE, V SATURATION VOLTAGE, V OUTPUT SHORT-CIRCUIT CURRENT (mA) 0.5 0.5 30 0 10 20 30 40 0 –10 –20 –30 –40 –50 –25 0 25 50 75 100 125 LOAD CURRENT (mA) LOAD CURRENT (mA) TEMPERATURE (°C) 1251/56 G26 1251/56 G27 1251/56 G28 7