Product Summary

The AD22057RZ-RL is a single-supply difference amplifier for amplifying and low-pass filtering small differential voltages (typically 100 mV FS at a gain of 40) from sources having a large commonmode voltage. Supply voltages from +3.0 V to +36 V can be used. The AD22057RZ-RL extends from below ground to +24 V using a +5 V supply with excellent rejection of this common-mode voltage. The applications of the AD22057RZ-RL include: (1)Current Sensing; (2)Motor Control; (3)Interface for Pressure Transducers, Position Indicators, Strain Gages, and Other Low Level Signal Sources; (4)Accelerometers.

Parametrics

AD22057RZ-RL absolute maximum ratings: (1)Supply Voltage: +3.0 V to +36 V; (2)Peak Input Voltage (40 ms): +60 V; (3)VOFS (Pin 7 to Pin 2): +20 V; (4)Reversed Supply Voltage Protection: –34 V; (5)Operating Temperature: –40℃ to +125℃; (6)Storage Temperature: –65℃ to +150℃; (7)Output Short Circuit Duration: Indefinite; (8)Lead Temperature Range (Soldering 60 sec): +300℃.

Features

AD22057RZ-RL features: (1)Gain of ×20. Alterable from ×1 to ×160; (2)Input CMR from Below Ground to 6× (VS – 1 V); (3)Output Span 20 mV to (VS – 0.2) V; (4)1-, 2-, 3-Pole Low-Pass Filtering Available; (5)Accurate Midscale Offset Capability; (6)Differential Input Resistance 400 kΩ; (7)Drives 1 kΩ Load to +4 V Using VS = +5 V; (8)Supply Voltage: +3.0 V to +36 V; (9)Transient Spike Protection and RFI Filters Included; (10)Peak Input Voltage (40 ms): 60 V; (11)Reversed Supply Protection: –34 V; (12)Operating Temperature Range: –40℃ to +125℃.

Diagrams

AD22057RZ-RL block diagram

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