LT1996 ELECTRICAL CHARACTERISTICSNote 4: Both the LT1996C and LT1996I are guaranteed functional over the determine the valid input voltage range under various operating –40°C to 85°C temperature range. conditions. Note 5: The LT1996C is guaranteed to meet the specified performance Note 8: Offset voltage, offset voltage drift and PSRR are defined as from 0°C to 70°C and is designed, characterized and expected to meet referred to the internal op amp. You can calculate output offset as follows. specified performance from –40°C to 85°C but is not tested or QA In the case of balanced source resistance, VOS, OUT = VOS • Noise Gain + sampled at these temperatures. The LT1996I is guaranteed to meet IOS • 450k + IB • 450k • (1 – RP/RN) where RP and RN are the total specified performance from –40°C to 85°C. resistance at the op amp positive and negative terminal respectively. Note 6: This parameter is not 100% tested. Note 9: Resistors connected to the minus inputs. Resistor matching is not Note 7: Input voltage range is guaranteed by the CMRR test at V tested directly, but is guaranteed by the gain error test. S = ±15V. For the other voltages, this parameter is guaranteed by design and through Note 10: Input impedance is tested by a combination of direct correlation with the ±15V test. See the Applications Information section to measurements and correlation to the CMRR and gain error tests. WUTYPICAL PERFOR A CE CHARACTERISTICS (Difference Amplifier Configuration)Output Voltage Swing vsOutput Voltage Swing vs LoadSupply Current vs Supply VoltageTemperatureCurrent (Output Low) 200 VCC 1400 V V S = 5V, 0V S = 5V, 0V 175 NO LOAD –20 1200 TA = 85°C OUTPUT HIGH TA = 85°C A) 150 (RIGHT AXIS) –40 µ TA = 25°C 1000 125 –60 800 100 TA = –40°C TA = 25°C 600 75 60 TA = –40°C SUPPLY CURRENT ( 50 40 OUTPUT VOLTAGE (mV) 400 OUTPUT LOW OUTPUT VOLTAGE SWING (mV) 25 20 (LEFT AXIS) 200 0 VEE VEE 0 2 4 6 8 10 12 14 16 18 20 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 7 8 9 10 SUPPLY VOLTAGE (±V) TEMPERATURE (°C) LOAD CURRENT (mA) 1996 G01 1996 G02 1996 G03 Output Voltage Swing vs LoadOutput Short-Circuit Current vsInput Offset Voltage vsCurrent (Output High)TemperatureDifference Gain VCC 25 150 VS = 5V, 0V V V S = 5V, 0V S = 5V, 0V –100 REPRESENTATIVE PARTS SINKING 100 –200 20 V) T µ A = –40°C –300 T 50 A = 85°C –400 15 TA = 25°C –500 0 –600 10 SOURCING –50 –700 –800 INPUT OFFSET VOLTAGE ( OUTPUT VOLTAGE SWING (mV) 5 –100 –900 OUTPUT SHORT-CIRCUIT CURRENT (mA) –1000 0 –150 0 1 2 3 4 5 6 7 8 9 10 –50 –25 0 25 50 75 100 125 9 18 27 36 45 54 63 72 81 90 99 108 117 LOAD CURRENT (mA) 1996 G04 TEMPERATURE (°C) GAIN (V/V) 1996 G05 1996 G06 1996f 5