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AD8203 Datasheet(PDF) 3 Page - Analog Devices |
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AD8203 Datasheet(HTML) 3 Page - Analog Devices |
3 / 20 page Data Sheet AD8203 Rev. D | Page 3 of 20 SPECIFICATIONS SINGLE SUPPLY TOPR = operating temperature range, VS = 5 V, unless otherwise noted, RTI = referred to input, VCM = common-mode voltage. Table 1. AD8203 SOIC AD8203 MSOP Parameter Conditions Min Typ Max Min Typ Max Unit SYSTEM GAIN Initial 14 14 V/V Error vs. Temperature 0.04 ≤ VOUT ≤ 4.8 V dc, TOPR ±0.3 ±0.3 % Gain Drift TOPR ±20 ±20 ppm/°C VOLTAGE OFFSET Initial Input Offset (RTI), TOPR ±2 ±2 Offset vs. Temperature VCM = 0V, TOPR ±10 ±15 µV/°C INPUT Input Impedance Differential 260 320 380 260 320 380 kΩ Common Mode 130 160 190 130 160 190 kΩ CMV Continuous −6 +30 −6 +30 V CMRR1 VCM = −6 V to +30 V f = dc to 1 kHz 82 82 dB f = 10 kHz2 80 80 dB PREAMPLIFIER Gain 7 7 V/V Gain Error ±0.3 ±0.3 % Output Voltage Range 0.02 4.8 0.02 4.8 V Output Resistance 97 100 103 97 100 103 kΩ OUTPUT BUFFER Gain 2 2 V/V Gain Error 0.04 ≤ VOUT ≤ 4.8 V dc, TOPR ±0.3 ±0.3 % Output Voltage Range3 0.04 4.8 0.04 4.8 V Input Bias Current 40 40 nA Output Resistance 2 2 Ω DYNAMIC RESPONSE System Bandwidth VIN = 0.01 V p-p, VOUT = 0.14 V p-p 40 60 40 60 kHz Slew Rate VIN = 0.28 V, VOUT = 4 V step 0.33 0.33 V/µs NOISE 0.1 Hz to 10 Hz 10 10 µV p-p Spectral Density, 1 kHz (RTI) 300 300 nV/√Hz POWER SUPPLY Operating Range 3.5 12 3.5 12 V Quiescent Current vs. Temperature VO = 0.1 V dc 0.25 1.0 0.25 1.0 mA PSRR VS = 3.5 V to 12 V 75 83 75 83 dB TEMPERATURE RANGE For Specified Performance −40 +125 −40 +125 °C 1 Source imbalance <2 Ω. 2 The AD8203 preamplifier exceeds 80 dB CMRR at 10 kHz. However, since the signal is available only by way of a 100 kΩ resistor, even the small amount of pin-to-pin capacitance between Pin 1, Pin 8 and Pin 3, Pin 4 may couple an input common-mode signal larger than the greatly attenuated preamplifier output. The effect of pin- to-pin coupling may be neglected in all applications by using filter capacitors at Node 3. 3 The output voltage range of A2 assumes that Pin 3 (A1 output) and Pin 4 (A2 Input) are shorted together. A 25 kΩ load resistor used for testing. |
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