Datasheet LTC6416 (Analog Devices) - 4

LTC6416
3.3V 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+ = 3.3V, GND = 0V, No RLOAD, CLOAD = 6pF. VCM = 1.25V, CLHI = V+, CLLO = 0V unless otherwise noted. VINCM is defi ned as (IN+ + IN–)/2. VOUTCM is defi ned as (OUT+ + OUT–)/2. VINDIFF is defi ned as (IN+ – IN–). VOUTDIFF is defi ned as (OUT+ – OUT–). See DC test circuit schematic. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Input/Output Characteristics
GDIFF Differential Gain VINDIFF = ±1.2V –0.3 –0.15 0 dB l –0.4 0 dB TCGDIFF Differential Gain Temperature Coeffi cient l –0.00033 dB/°C VOUTDIFF Differential Output Voltage Swing VINDIFF = ±2.3V 3.5 4 VP-P l 3.2 VP-P VOUTMIN Output Voltage Swing Low Single-Ended Measurement of OUT+, 0.2 0.3 V OUT–. VINDIFF = ±2.3V l 0.35 V VOUTMAX Output Voltage Swing High Single-Ended Measurement of OUT+, 2.05 2.2 V OUT–. VINDIFF = ±2.3V l 1.95 V IOUT Output Current Drive (Note 4) Single-Ended Measurement of OUT+, OUT– l ±20 mA VOS Differential Input Offset Voltage IN+ = IN– = 1.25V, VOS = VOUTDIFF/ –5 –0.1 5 mV GDIFF l –10 10 mV TCVOS Differential Input Offset Voltage Drift l 1 μV/°C VIOCM Common Mode Offset Voltage, Input to VOUTCM – VINCM –65 –40 –15 mV Output l –75 –5 mV IVRMIN Input Voltage Range, IN+, IN– Defi ned by Output Voltage Swing Test l 0.1 V (Minimum) (Single-Ended) IVRMAX Input Voltage Range, IN+, IN– Defi ned by Output Voltage Swing Test l 2.4 V (Maximum) (Single-Ended) IB Input Bias Current, IN+, IN– IN+ = IN– = 1.25V l –15 –4 15 μA RINDIFF Differential Input Resistance VINDIFF = ±1.2V l 9 12 15 kΩ CINDIFF Differential Input Capacitance 1 pF RINCM Input Common Mode Resistance IN+ = IN– = 0.65V to 1.85V 6 kΩ CMRR Common Mode Rejection Ratio IN+ = IN– = 0.65V to 1.85V = ΔVINCM, 63.5 83 dB CMRR = (VOUTDIFF/GDIFF/ΔVINCM) l 59.6 dB eN Input Noise Voltage Density f = 100kHz 1.8 nV/√Hz iN Input Noise Current Density f = 100kHz 6.5 pA/√Hz
Output Common Mode Voltage Control
GCM VCM Pin Common Mode Gain VCM = 0.65V to 1.85V l 0.9 0.96 1.05 V/V VINCMDEFAULT Default Input Common Mode Voltage VINCM. IN+, IN–, VCM Pin Floating l 1.2 1.28 1.35 V VOS (VCM – VINCM) Offset Voltage, VCM to VINCM VCM – VINCM, VCM = 1.25V l –70 –26 70 mV VOUTCMDEFAULT Default Output Common Mode Voltage Inputs Floating, VCM Pin Floating l 1.15 1.24 1.35 V VOS (VCM – VOUTCM) Offset Voltage, VCM to VOUTCM VCM – VOUTCM, VCM = 1.25V l –60 14 60 mV VOUTCMMIN Output Common Mode Voltage VCM = 0.1V 0.34 0.5 V (Minimum) l 0.55 V VOUTCMMAX Output Common Mode Voltage VCM = 2.4V 2.05 2.16 V (Maximum) l 2 V VCMDEFAULT VCM Pin Default Voltage l 1.2 1.25 1.3 V RVCM VCM Pin Input Resistance l 2.5 3.8 5.1 kΩ CVCM VCM Pin Input Capacitance 1 pF IBVCM VCM Pin Bias Current VCM = 1.25V l –10 0.2 10 μA 6416f 4