Datasheet AD8207 (Analog Devices) - 3

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AD8207 SPECIFICATIONS
TOPR = −40°C to +125°C, V+ = 5 V or 3.3 V, unless otherwise noted.
Table 1. Parameter Min Typ Max Unit Test Conditions/Comments
GAIN Initial 20 V/V Accuracy over Temperature −0.3 +0.3 % TOPR Gain vs. Temperature −15 0 ppm/°C TOPR VOLTAGE OFFSET Offset Voltage (RTI)1 ±100 μV 25°C Over Temperature (RTI)1 ±400 μV TOPR Offset Drift −1 +1 μV/°C TOPR INPUT Input Impedance Differential 240 kΩ Common Mode 126 kΩ Input Voltage Range −4 +65 V Common mode, continuous, V+ = 5 V, TOPR −4 +35 V Common mode continuous, V+ = 3.3 V, TOPR 250 mV Differential2, V+ = 5 V Common-Mode Rejection (CMRR) 80 90 dB TOPR, f = dc to 20 kHz OUTPUT Output Voltage Range 0.02 V+ − 0.05 V RL = 25 kΩ, TOPR Output Resistance 2 Ω DYNAMIC RESPONSE Small-Signal −3 dB Bandwidth 150 kHz TOPR Slew Rate 1 V/μs NOISE 0.1 Hz to 10 Hz, (RTI)1 20 μV p-p Spectral Density, 1 kHz, (RTI)1 0.6 μV/√Hz OFFSET ADJUSTMENT Ratiometric Accuracy3 0.497 0.503 V/V Divider to supplies, TOPR Accuracy (RTO)4 ±3 mV/V Voltage applied to VREF1 and VREF2 in parallel, TOPR Output Offset Adjustment Range 0.02 V+ − 0.05 V TOPR VREF Input Voltage Range5 0.0 V+ V VREF Divider Resistor Values 100 kΩ POWER SUPPLY Operating Range 4.5 5.5 V RANGE (Pin 4) connected to GND6 3.3 4.5 V RANGE (Pin 4) connected to V+7 Quiescent Current over Temperature 2.5 mA VO = 0.1 V dc Power Supply Rejection Ratio (PSRR) 80 dB TEMPERATURE RANGE For Specified Performance −40 +125 °C 1 RTI = referred to input. 2 Input voltage range = ±125 mV with half-scale offset. The input differential range also depends on the supply voltage. The maximum input differential range can be calculated by V+/20. 3 The offset adjustment is ratiometric to the power supply when VREF1 and VREF2 are used as a divider between the supplies. 4 RTO = referred to output. 5 The reference pins should be driven with a low impedance voltage source to maintain the specified accuracy of the AD8207. 6 With a 4.5 V to 5.5 V supply, the RANGE pin should be tied low. In this mode, the common-mode range of the AD8207 is −4 V to +65 V. 7 With a 3.3 V to 4.5 V supply, the RANGE pin should be tied to V+. In this mode, the common-mode range of the AD8207 is −4 V to +35 V. If a 4.5 V supply is used, the user can tie RANGE high or low depending on the common-mode range needed in the application. Rev. 0 | Page 3 of 16 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION POWER SUPPLY ADJUSTMENT 3.3 V TO 4.5 V SUPPLY OPERATION 4.5 V TO 5.5 V SUPPLY OPERATION OUTPUT OFFSET ADJUSTMENT UNIDIRECTIONAL OPERATION Ground Referenced Output Mode V+ Referenced Output Mode BIDIRECTIONAL OPERATION EXTERNAL REFERENCED OUTPUT SPLITTING THE SUPPLY SPLITTING AN EXTERNAL REFERENCE APPLICATIONS INFORMATION MOTOR CONTROL 3-Phase Motor Control H-Bridge Motor Control SOLENOID CONTROL High-Side Current Sense with a Low-Side Switch High-Side Current Sense with a High-Side Switch OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS