AD624–SPECIFICATIONS(@ VS = ⴞ 15 V, RL = 2 k ⍀ and TA = +25 ⴗ C, unless otherwise noted) ModelAD624AAD624BAD624CAD624SMinTypMaxMinTypMaxMinTypMaxMinTypMaxUnits GAIN Gain Equation (External Resistor Gain Programming) 40,000 40,000 40,000 40,000 + 1 ± 20% + 1 ± 20% + 1 ± 20% + 1 ± 20% R R R R G G G G Gain Range (Pin Programmable) 1 to 1000 1 to 1000 1 to 1000 1 to 1000 Gain Error G = 1 ± 0.05 ± 0.03 ± 0.02 ± 0.05 % G = 100 ± 0.25 ± 0.15 ± 0.1 ± 0.25 % G = 200, 500 ± 0.5 ± 0.35 ± 0.25 ± 0.5 % Nonlinearity G = 1 ±0.005 ±0.003 ±0.001 ±0.005 % G = 100, 200 ±0.005 ±0.003 ±0.001 ±0.005 % G = 500 ±0.005 ±0.005 ±0.005 ±0.005 % Gain vs. Temperature G = 1 5 5 5 5 ppm/°C G = 100, 200 10 10 10 10 ppm/°C G = 500 25 15 15 15 ppm/°C VOLTAGE OFFSET (May be Nulled) Input Offset Voltage 200752575 µV vs. Temperature 20.50.252.0 µV/°C Output Offset Voltage 5323 mV vs. Temperature 50251050 µV/°C OUT Offset Referred to the Input vs. Supply G = 1 70758075 dB G = 100, 200 95105110105 dB G = 500 100110115110 dB INPUT CURRENT Input Bias Current ± 50 ± 25 ± 15 ± 50 nA vs. Temperature ±50 ±50 ±50 ±50 pA/°C Input Offset Current ± 35 ± 15 ± 10 ± 35 nA vs. Temperature ±20 ±20 ±20 ±20 pA/°C INPUT Input Impedance Differential Resistance 109 109 109 109 Ω Differential Capacitance 10 10 10 10 pF Common-Mode Resistance 109 109 109 109 Ω Common-Mode Capacitance 10 10 10 10 pF Input Voltage Range1 Max Differ. Input Linear (VDL) ±10 ±10 ±10 ±10 V G G G G Max Common-Mode Linear (V 12 V − × V12 V − × V12 V − × V12 V − × V CM) 2D 2D 2D 2D V Common-Mode Rejection dc to 60 Hz with 1 kΩ Source Imbalance G = 1 70758070 dB G = 100, 200 100105110100 dB G = 500 110120130110 dB OUTPUT RATING V , RL = 2 kΩ ±10 ±10 ±10 ±10 V DYNAMIC RESPONSE Small Signal –3 dB G = 1 1 1 1 1 MHz G = 100 150 150 150 150 kHz G = 200 100 100 100 100 kHz G = 500 50 50 50 50 kHz G = 1000 25 25 25 25 kHz Slew Rate 5.0 5.0 5.0 5.0 V/µs Settling Time to 0.01%, 20 V Step G = 1 to 200 15 15 15 15 µs G = 500 35 35 35 35 µs G = 1000 75 75 75 75 µs NOISE Voltage Noise, 1 kHz R.T.I. 4 4 4 4 nV/√Hz R.T.O. 75 75 75 75 nV/√Hz R.T.I., 0.1 Hz to 10 Hz G = 1 10 10 10 10 µV p-p G = 100 0.3 0.3 0.3 0.3 µV p-p G = 200, 500, 1000 0.2 0.2 0.2 0.2 µV p-p Current Noise 0.1 Hz to 10 Hz 60 60 60 60 pA p-p SENSE INPUT RIN 8 10 12 8 10 12 8 10 12 8 10 12 kΩ IIN 30 30 30 30 µA Voltage Range ±10 ±10 ±10 ±10 V Gain to Output 1 1 1 1 % –2– REV. C