Datasheet LTC6406 (Analog Devices) - 3

LTC6406
DC ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. V+ = 3V, V– = 0V, VCM = VOCM = VICM = 1.25V, VSHDN = open, RBAL = 100k
Ω
, RI = 150
Ω
, RF = 150
Ω
(0.1% resistors), CF = 1.8pF (see Figure 1) unless otherwise noted. VS is defi ned as (V+ – V–). VOUTCM is defi ned as (V+OUT + V–OUT)/2. VICM is defi ned as (V+IN + V–IN)/2. VOUTDIFF is defi ned as (V+OUT – V–OUT). SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOSDIFF Differential Offset Voltage (Input Referred) VICM = 3V (Note 12) l ±1 ±5 mV VICM = 1.25V l ±0.25 ±3.5 mV VICM = 0V (Note 12) l ±1 ±5 mV ΔVOSDIFF/ΔT Differential Offset Voltage Drift (Input Referred) VICM = 3V (Note 12) l 12 μV/°C VICM = 1.25V l 1 μV/°C VICM = 0V (Note 12) l 7 μV/°C IB Input Bias Current (Note 6) VICM = 3V 6 μA VICM = 1.25V l –24 –9 –1 μA VICM = 0V –17 μA IOS Input Offset Current (Note 6) VICM = 3V ±1 μA VICM = 1.25V l ±1 ±3 μA VICM = 0V ±1 μA RIN Input Resistance Common Mode 130 kΩ Differential Mode 3 kΩ CIN Input Capacitance Differential 1 pF en Differential Input Referred Noise Voltage Density f = 1MHz, Not Including 1.6 nV/√Hz RI/RF Noise in Input Noise Current Density f = 1MHz, Not Including 2.5 pA/√Hz RI/RF Noise enVOCM Input Referred Common Mode Output Noise Voltage Density f = 1MHz 9 nV/√Hz VICMR (Note 7) Input Signal Common Mode Range Op Amp Inputs l V– V+ V CMRRI Input Common Mode Rejection Ratio VICM from 0V to 3V l 50 65 dB (Note 8) (Input Referred) ΔVICM/ΔVOSDIFF CMRRIO Output Common Mode Rejection Ratio (Input Referred) VOCM from 0.5V to 2V l 50 70 dB (Note 8) ΔVOCM/ΔVOSDIFF PSRR Differential Power Supply Rejection VS = 2.7V to 3.5V l 55 75 dB (Note 9) (ΔVS/ΔVOSDIFF) PSRRCM Output Common Mode Power Supply Rejection VS = 2.7V to 3.5V l 55 65 dB (Note 9) (ΔVS/ΔVOSCM) GCM Common Mode Gain (ΔVOUTCM/ΔVOCM) VOCM from 0.5V to 2V l 1 V/V ΔGCM Common Mode Gain Error 100 • (GCM – 1) VOCM from 0.5V to 2V l ±0.4 ±0.8 % BAL Output Balance (ΔVOUTCM/ΔVOUTDIFF) ΔVOUTDIFF = 2V Single-Ended Input l –57 –45 dB Differential Input l –65 –45 dB VOSCM Common Mode Offset Voltage (VOUTCM – VOCM) l ±6 ±15 mV ΔVOSCM/ΔT Common Mode Offset Voltage Drift l 15 μV/°C VOUTCMR Output Signal Common Mode Range l 0.5 2 V (Note 7) (Voltage Range for the VOCM Pin) RINVOCM Input Resistance, VOCM Pin l 12 18 24 kΩ VOCM Self-Biased Voltage at the VOCM Pin VOCM = Open l 1.15 1.25 1.35 V VOUT Output Voltage, High, +OUT/–OUT Pins VS = 3.3V, IL = 0 l 2.2 2.35 V VS = 3.3V, IL = –20mA l 2 2.15 V VS = 3V, IL = 0 l 2 2.05 V VS = 3V, IL = –5mA l 1.95 2 V VS = 3V, IL = –20mA l 1.7 1.85 V Output Voltage, Low, +OUT/–OUT Pins VS = 3V, IL = 0 l 0.23 0.33 V VS = 3V, IL = 5mA l 0.34 0.4 V VS = 3V, IL = 20mA l 0.75 0.85 V 6406fc 3