Datasheet AD8209 (Analog Devices) - 3

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Data Sheet AD8209 SPECIFICATIONS
TOPR = −40°C to +125°C for AD8209WBRM grade, TOPR = −40°C to +150°C for AD8209WHRM grade, TA = 25°C, VS = 5 V, RL = 25 kΩ (RL is the output load resistor), unless otherwise noted.
Table 1. Parameter Test Conditions1 Min Typ Max Unit
SYSTEM GAIN Initial 14 V/V Error vs. Temperature AD8209WBRM 0.075 V ≤ VOUT ≤ (VS − 0.1 V), dc, TOPR ±0.3 % AD8209WHRM 0.100 V ≤ VOUT ≤ (VS − 0.12 V), dc, TOPR ±0.3 % Gain Drift TOPR 0 −20 ppm/°C VOLTAGE OFFSET Initial Input Offset (Referred to Input [RTI]) VCM = 0.15 V, TA ±2 mV Input Offset (RTI) Over Temperature VCM = 0 V, TOPR ±4 mV Voltage Offset vs. Temperature VCM = 0 V, TOPR −20 +20 µV/°C INPUT Input Impedance Differential 360 400 440 kΩ Common Mode 180 200 220 kΩ VCM (Continuous) −2 +45 V CMRR2 VCM = −2 V to +45 V, dc 80 100 dB f = dc to 10 kHz,3 TOPR 80 dB PREAMPLIFIER (A1) Gain 7 V/V Gain Error AD8209WBRM 0.0375 V ≤ VOUT ≤ (VS − 0.1 V), dc, TOPR −0.3 +0.3 % AD8209WHRM 0.050 V ≤ VOUT ≤ (VS − 0.1 V), dc, TOPR −0.3 +0.3 % Output Voltage Range AD8209WBRM 0.0375 VS − 0.1 V AD8209WHRM 0.05 VS − 0.1 V Output Resistance 97 100 103 kΩ OUTPUT BUFFER (A2) Gain 2 V/V Gain Error AD8209WBRM 0.075 V ≤ VOUT ≤ (VS − 0.1 V), dc, TOPR −0.3 +0.3 % AD8209WHRM 0.1 V ≤ VOUT ≤ (VS − 0.12 V), dc, TOPR −0.3 +0.3 % Output Voltage Range4, 5 RL = 25 kΩ, differential Input (V) = 0 V, TOPR Pin 3 (A1 output) driving Pin 4 (A2 input) AD8209WBRM 0.075 VS − 0.1 V AD8209WHRM 0.1 VS − 0.12 V Output Voltage Range6 Pin 4 (A2 input) driven with external source AD8209WBRM 0.075 VS − 0.1 V AD8209WHRM 0.1 VS − 0.12 V Input Bias Current TOPR 50 nA Output Resistance RL = 1 kΩ, frequency = dc 2 Ω DYNAMIC RESPONSE System Bandwidth VIN = 0.01 V p-p, VOUT = 0.14 V p-p 80 kHz Slew Rate VIN = 0.28 V, VOUT = 4 V step 1 V/µs NOISE 0.1 Hz to 10 Hz 20 µV p-p Spectral Density, 1 kHz (RTI) 500 nV/√Hz Rev. C | Page 3 of 16 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION HIGH-SIDE CURRENT SENSINGWITH A LOW-SIDE SWITCH HIGH-RAIL CURRENT SENSING LOW-SIDE CURRENT SENSING 4 mA to 20 mA Current Loop Receiver GAIN ADJUSTMENT Gains Less than 14 Gains Greater than 14 GAIN TRIM Internal Signal Overload Considerations LOW-PASS FILTERING HIGH LINE CURRENT SENSINGWITH LPF AND GAIN ADJUSTMENT OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS