Datasheet LTC6419 (Analog Devices) - 3

LTC6419
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. V+ = V+A = V+B = 5V, V– = 0V, VCM = VICM = VOCMA = VOCMB = 1.25V, VSHDNA = VSHDNB = open. VS is defined as (V+ – V–). VOUTCM is defined as (V+OUT + V–OUT)/2. VICM is defined as (V+IN + V–IN)/2. VOUTDIFF is defined as (V+OUT – V–OUT). SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOSDIFF Differential Offset Voltage (Input Referred) VS = 3V ±300 ±1000 µV VS = 3V l ±1200 µV VS = 5V ±300 ±1100 µV VS = 5V l ±1400 µV ΔVOSDIFF Differential Offset Voltage Drift (Input Referred) VS = 3V l 2 µV/°C ΔT VS = 5V l 2 µV/°C IB Input Bias Current (Note 6) VS = 3V l –140 –62 0 µA VS = 5V l –160 –70 0 µA IOS Input Offset Current (Note 6) VS = 3V l ±2 ±10 µA VS = 5V l ±2 ±10 µA RIN Input Resistance Common Mode 165 kΩ Differential Mode 860 Ω CIN Input Capacitance Differential Mode 0.5 pF en Differential Input Noise Voltage Density f = 1MHz, Not Including RI/RF Noise 1.1 nV/√Hz in Input Noise Current Density f = 1MHz, Not Including RI/RF Noise 8.8 pA/√Hz enVOCM Common Mode Noise Voltage Density f = 10MHz 12 nV/√Hz VICMR Input Signal Common Mode Range VS = 3V l 0 1.5 V (Note 7) VS = 5V l 0 3.5 V CMRRI Input Common Mode Rejection Ratio VS = 3V, VICM from 0V to 1.5V l 75 90 dB (Note 8) (Input Referred) ΔVICM/ΔVOSDIFF VS = 5V, VICM from 0V to 3.5V l 75 90 dB CMRRIO Output Common Mode Rejection Ratio (Input VS = 3V, VOCM from 0.5V to 1.5V l 55 80 dB (Note 8) Referred) ΔVOCM/ΔVOSDIFF VS = 5V, VOCM from 0.5V to 3.5V l 60 85 dB PSRR Differential Power Supply Rejection (ΔVS/ΔVOSDIFF) VS = 2.7V to 5.25V l 60 85 dB (Note 9) PSRRCM Output Common Mode Power Supply Rejection VS = 2.7V to 5.25V l 55 70 dB (Note 9) (ΔVS/ΔVOSCM) VS Supply Voltage Range (Note 10) l 2.7 5.25 V GCM Common Mode Gain (ΔVOUTCM/ΔVOCM) VS = 3V, VOCM from 0.5V to 1.5V l 1 V/V VS = 5V, VOCM from 0.5V to 3.5V l 1 V/V ΔGCM Common Mode Gain Error, 100 × (GCM – 1) VS = 3V, VOCM from 0.5V to 1.5V l ±0.1 ±0.3 % VS = 5V, VOCM from 0.5V to 3.5V l ±0.1 ±0.3 % BAL Output Balance ΔVOUTDIFF = 2V (ΔVOUTCM/ ΔVOUTDIFF) Single-Ended Input l –65 –50 dB Differential Input l –70 –50 dB VOSCM Common Mode Offset Voltage (VOUTCM – VOCM) VS = 3V l ±1 ±5 mV VS = 5V l ±1 ±6 mV ΔVOSCM Common Mode Offset Voltage Drift l 4 µV/°C ΔT VOUTCMR Output Signal Common Mode Range VS = 3V l 0.5 1.5 V (Note 7) (Voltage Range for the VOCMA/VOCMB Pins) VS = 5V l 0.5 3.5 V RINVOCM Input Resistance, VOCMA/VOCMB Pins l 30 40 50 KΩ VOCM Self-Biased Voltage at the VOCMA/VOCMB Pins VS = 3V, VOCMA = VOCMB = Open 0.85 V VS = 5V, VOCMA = VOCMB = Open l 0.9 1.25 1.6 V 6419fa For more information www.linear.com/LTC6419 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Typical Performance Characteristics Pin Functions Applications Information Typical Applications Typical Applications Related Parts