1B22

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Programmable, Isolated Voltage-to-Current Converter

Data Sheet (Rev. B) Product Selection Table

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Overview

Internal Isolated Loop Supply Drives 1000 Ω Load
Pin Programmable Inputs: 0 V to +5 V or 0 V to +10 V
Pin Programmable Outputs: 4 to 20 mA or 0 to 20 mA
High CMV Isolation: 1500 V RMS
Normal-Mode Output Protection: 240 V RMS

High Accuracy
Low Offset Tempco: ±300nA/°C
Low Gain Tempco: ±50ppm/°C
Low Nonlinearity: ±0.02%
High CMR: 90dB min
Small Package: 1.0"x2.10"x0.35"
Meets IEEE std. 472: CMV Transient Protection (SWC)

The 1B22 is an isolated voltage-to-current converter that incorporates transformer isolation to achieve high performance and automated surface mount manufacturing for low cost and increased reliability. Designed for industrial applications, it is especially suited for harsh environments with extremely high common mode interference. With programmable inputs and outputs, the 1B22 provides an unbeatable combination of versatility and performance in a compact plastic package.

APPLICATIONS

Multichannel Process Control
D/A Converter - Current Loop Interface
Analog Transmitters and Controllers
Remote Data Acquisition System

Documentation

Data Sheet 1

1B22: Programmable, Isolated Voltage-to-Current Converter Data Sheet (Rev.B) 05/01/2008

This is the most up-to-date revision of the Data Sheet.

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Tools & Simulations

LTspice

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LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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