器件名称:
AD22050N
功能描述:
Single-Supply Sensor Interface Amplifier
文件大小:
148.6KB 共8页
简 介:
a FEATURES Gain of 20. Alterable from 1 to 160 Input CMR from Below Ground to 6 (VS – 1 V) Output Span 20 mV to (VS – 0.2) V 1-, 2-, 3-Pole Low-Pass Filtering Available Accurate Midscale Offset Capability Differential Input Resistance 400 k Drives 1 k Load to +4 V Using V S = +5 V Supply Voltage: +3.0 V to +36 V Transient Spike Protection and RFI Filters Included Peak Input Voltage (40 ms): 60 V Reversed Supply Protection: –34 V Operating Temperature Range: –40 C to +125C APPLICATIONS Current Sensing Motor Control Interface for Pressure Transducers, Position Indicators, Strain Gages, and Other Low Level Signal Sources Single-Supply Sensor Interface Amplifier AD22050 FUNCTIONAL BLOCK DIAGRAM +VS OFS A1 A2 AD22050 IN+ A1 IN– A2 OUT GND GENERAL DESCRIPTION The AD22050 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 input common-mode range extends from below ground to +24 V using a +5 V supply with excellent rejection of this common-mode voltage. This is achieved by the use of a special resistive attenuator at the input, laser trimmed to a very high differential balance. Provisions are included for optional low-pass filtering and gain adjustment. An accurate midscale offset feature allows bipolar signals to be amplified. +VS (CAR BATTERY) SOLENOID LOAD +5V ANALOG OUTPUT 4V P……
