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AD628AR Scheda tecnica(PDF) 5 Page - Analog Devices |
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AD628AR Scheda tecnica(HTML) 5 Page - Analog Devices |
5 / 20 page AD628 Rev. C | Page 5 of 20 TA = 25°C, VS = +5 V, RL = 2 kΩ, REXT1 = 10 kΩ, REXT2 = ∞, VREF = +2.5 unless otherwise noted. Table 2. AD628AR AD628ARM Parameter Conditions Min Typ Max Min Typ Max Unit DIFF AMP + OUTPUT AMP Gain Equation G = +0.1(1+ REXT1/REXT2). V/V Gain Range See Figure 29. 0.11 100 0.11 100 V/V Offset Voltage VOCM = 2.25 V. RTI of input pins2. Output Amp G = +1. −3.0 +3.0 −3.0 +3.0 mV vs. Temperature 6 15 6 15 µV/°C CMRR RTI of input pins. G = 0.1 to 100. 75 75 dB 500 Hz. 75 75 dB Minimum CMRR Over Temperature −40°C to +85°C. 70 70 dB vs. Temperature 1 4 1 4 (µV/V)/°C PSRR (RTI) VS = 4.5 V to 10 V. 77 94 77 94 dB Input Voltage Range Common Mode3 −12 +17 −12 +17 V Differential −15 +15 −15 +15 V Dynamic Response Small Signal BW –3 dB G = +0.1. 440 440 kHz Full Power Bandwidth 30 30 kHz Settling Time G = +0.1, to 0.01%, 30 V step. 15 15 µs Slew Rate 0.3 0.3 V/µs Noise (RTI) Spectral Density 1 kHz. 350 350 nV/√Hz 0.1 Hz to 10 Hz. 15 15 µV p-p DIFF-AMP Gain 0.1 0.1 V/V Error –0.1 +0.01 +0.1 –0.1 +0.01 +0.1 % Nonlinearity 3 3 ppm vs. Temperature 3 10 3 10 ppm Offset Voltage RTI of input pins. −2.5 +2.5 −2.5 +2.5 mV vs. Temperature 10 10 µV/°C Input Impedance Differential 220 220 kΩ Common Mode 55 55 kΩ CMRR RTI of input pins. G = +0.1 to +100. 75 75 dB 500 Hz. 75 75 dB Minimum CMRR Over Temperature −40°C to +85°C. 70 70 dB vs. Temperature 1 4 1 4 (µV/V)/°C Output Resistance 10 10 kΩ Error −0.1 +0.1 −0.1 +0.1 % OUTPUT AMPLIFIER Gain Equation G = (1 + REXT1/REXT2). V/V Nonlinearity G = +1, VOUT = 1 V to 4 V. 0.5 0.5 ppm Output Offset Voltage RTI of output amp. −0.15 0.15 −0.15 0.15 mV vs. Temperature 0.6 0.6 µV/°C Output Voltage Swing RL = 10 kΩ. 0.9 4.1 0.9 4.1 V RL = 2 kΩ. 1 4 1 4 V Bias Current 1.5 3 1.5 3 nA Offset Current 0.2 0.5 0.2 0.5 nA CMRR VCM = 1 V to 4 V. 130 130 dB Open-Loop Gain VOUT = 1 V to 4 V. 130 130 dB |
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