LT6236/LT6237/LT6238 e lecTrical characTerisTics TA = 25°C, VS = 5V, 0V; VS = 3.3V, 0V; VCM = VOUT = half supply,ENABLE = 0V, unless otherwise noted.SYMBOL PARAMETERCONDITIONSMINTYPMAXUNIT VOS Input Offset Voltage LT6236 100 500 µV LT6237MS8, LT6238GN 50 350 µV LT6237DD8 75 450 µV Input Offset Voltage Match 100 600 µV (Channel-to-Channel) (Note 6) IB Input Bias Current 5 10 µA IB Match (Channel-to-Channel) (Note 6) 0.1 0.9 µA IOS Input Offset Current 0.1 0.6 µA Input Noise Voltage 0.1Hz to 10Hz 180 nVP-P en Input Noise Voltage Density f = 10kHz, VS = 5V 1.1 1.7 nV/√Hz in Input Noise Current Density, Balanced Source f = 10kHz, VS = 5V, RS = 10k 1 pA/√Hz Input Noise Current Density, Unbalanced Source f = 10kHz, VS = 5V, RS = 10k 2.4 pA/√Hz RIN Input Resistance Common Mode 6.5 MΩ Differential Mode 7.5 kΩ CIN Input Capacitance Common Mode 2.9 pF Differential Mode 7.7 pF AVOL Large-Signal Gain VS = 5V, VO = 0.5V to 4.5V, RL = 10k to VS/2 105 200 V/mV VS = 5V, VO = 0.5V to 4.5V, RL = 1k to VS/2 21 40 V/mV VS = 5V, VO = 1V to 4V, RL = 100Ω to VS/2 5.4 9 V/mV VS = 3.3V, VO = 0.65V to 2.65V, RL = 10k to VS/2 90 175 V/mV VS = 3.3V, VO = 0.65V to 2.65V, RL = 1k to VS/2 16.5 32 V/mV VCM Input Voltage Range Guaranteed by CMRR, VS = 5V, 0V 1.5 4 V Guaranteed by CMRR, VS = 3.3V, 0V 1.15 2.65 V CMRR Common Mode Rejection Ratio VS = 5V, VCM = 1.5V to 4V 90 115 dB VS = 3.3V, VCM = 1.15V to 2.65V 90 115 dB PSRR Power Supply Rejection Ratio VS = 3V to 10V 90 115 dB Minimum Supply Voltage (Note 7) 3 V VOL Output Voltage Swing Low (Note 8) No Load 4 40 mV ISINK = 5mA 85 190 mV VS = 5V, ISINK = 20mA 240 460 mV VS = 3.3V, ISINK = 15mA 185 350 mV VOH Output Voltage Swing High (Note 8) No Load 5 50 mV ISOURCE = 5mA 90 200 mV VS = 5V, ISOURCE = 20mA 325 600 mV VS = 3.3V, ISOURCE = 15mA 250 400 mV ISC Short-Circuit Current VS = 5V ±30 ±45 mA VS = 3.3V ±25 ±40 mA IS Supply Current per Amplifier 3.15 3.5 mA Disabled Supply Current per Amplifier ENABLE = V+ – 0.35V 0.2 10 µA IENABLE ENABLE Pin Current ENABLE = 0.3V –25 –75 µA 623637fb For more information www.linear.com/LT6236 3