Datasheet AD8202 (Analog Devices) - 3

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Data Sheet AD8202 SPECIFICATIONS SINGLE SUPPLY
TOPR = operating temperature range, VS = 5 V, unless otherwise noted, RTI = referred to input, VCM = common-mode voltage.
Table 1. AD8202 SOIC AD8202 MSOP AD8202 Die1 Parameter Conditions Min Typ Max Min Typ Max Min Typ Max Unit
SYSTEM GAIN Initial 20 20 20 V/V Error vs. Temperature 0.04 ≤ VOUT ≤ 4.8 V dc, TOPR ±0.3 ±0.3 ±0.3 % Gain Drift TOPR ±20 ±20 ±30 ppm/°C VOLTAGE OFFSET Initial Input Offset (RTI), TOPR ±2 ±2 ±3 mV Offset vs. Temperature VCM = 0 V, TOPR ±10 ±15 ±15 μV/°C INPUT Input Impedance Differential 260 325 390 260 325 390 260 325 390 kΩ Common Mode 135 170 205 135 170 205 135 170 205 kΩ CMV Continuous −6 +28 −6 +28 −6 +28 V CMRR2 VCM = −6 V to +28 V f = dc to 1 kHz 82 82 82 dB f = 10 kHz3 80 80 80 dB PREAMPLIFIER Gain 10 10 10 V/V Gain Error ±0.3 ±0.3 ±0.3 % Output Voltage Range 0.02 4.8 0.02 4.8 0.02 4.8 V Output Resistance 97 100 103 97 100 103 97 100 103 kΩ OUTPUT BUFFER Gain 2 2 2 V/V Gain Error 0.04 ≤ VOUT ≤ 4.8 V dc, TOPR ±0.3 ±0.3 ±0.3 % Output Voltage Range4 0.04 4.8 0.04 4.8 0.04 4.8 V Input Bias Current 40 40 40 nA Output Resistance 2 2 2 Ω DYNAMIC RESPONSE System Bandwidth VIN = 0.1 V p-p; VOUT = 2.0 V p-p 30 50 30 50 30 50 kHz Slew Rate VIN = 0.2 V dc; VOUT = 4 V step 0.28 0.28 0.28 V/μs NOISE 0.1 Hz to 10 Hz 10 10 10 μV p-p Spectral Density, 1 kHz (RTI) 275 275 275 nV/√Hz POWER SUPPLY Operating Range 3.5 12 3.5 12 3.5 12 V Quiescent Current vs. VO = 0.1 V dc 0.25 1.0 0.25 1.0 0.25 1.0 mA Temperature PSRR VS = 3.5 V to 12 V 75 83 75 83 75 83 dB TEMPERATURE RANGE For Specified Performance TOPR −40 +125 −40 +125 −40 +150 °C 1 Die is specified for operation from −40°C to +150°C ( TOPR for DIE). 2 Source imbalance <2 Ω. 3 The AD8202 preamplifier exceeds 80 dB CMRR at 10 kHz. However, because 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 might couple an input common-mode signal larger than the greatly attenuated preamplifier output. The effect of pin-to-pin coupling can be neglected in all applications by using filter capacitors at Node 3. 4 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 was used for testing. Rev. H | Page 3 of 20 Document Outline Features Applications General Description Functional Block Diagrams Revision History Specifications Single Supply Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Applications Current Sensing High Line, High Current Sensing Low Current Sensing Gain Adjustment Gains Less than 20 Gains Greater Than 20 Gain Trim Internal Signal Overload Considerations Low-Pass Filtering High Line Current Sensing with LPF and Gain Adjustment Driving Charge Redistribution ADCs Outline Dimensions Ordering Guide Automotive Products