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2B22

ETC
Part Number 2B22
Manufacturer ETC
Description Isolated Voltage-to-Current Converter
Published Jun 14, 2006
Detailed Description www.DataSheet4U.com High Performance, Isolated Voltage–to-Current Converter 2B22 FEATURES Wide Input Range: 0 to +1V t...
Datasheet PDF File 2B22 PDF File

2B22
2B22


Overview
www.
DataSheet4U.
com High Performance, Isolated Voltage–to-Current Converter 2B22 FEATURES Wide Input Range: 0 to +1V to 0 to +10V Standard Output Range: 4 to 20mA High CMV Input/Output Isolation: 1500V dc Continuous Low Nonlinearity: 0.
05% max, 2B22L Low Span Drift: 0.
005%/°C max, 2B22L Single Supply: +14V to +32V Meets IEEE Std 472: Transient Protection (SWC) Meets ISA Std 50.
1: Isolated Current Loop Transmitters APPLICATIONS Industrial Instrumentation and Process Control Ground Loop Elimination High Voltage Transient Protection D/A Converter - Current Loop Interface Analog Transmitters and Controllers Remote Data Acquisition Systems GENERAL DESCRIPTION Model 2B22 is a high performance, compact voltage-to-current converter offering 1500V dc input to output isolation in interfacing standard process signals.
The input stage of the model 2B22 is single resistor programmable to accept voltage ranges from 0 to +1V to 0 to +10V.
The isolated output current range is 4 to 20mA, and the 2B22 can be operated with 0 to 1000Ω grounded or floating loads.
Using modulation techniques with transformer isolation for reliable performance, the 2B22 is available in three accuracy selections offering guaranteed nonlinearity error (2B22L: ±0.
05% max, 2B22K: ±0.
1% max, and 2B22j: ±0.
2% max) and guaranteed low span drift: ±0.
005%/°C max, ±0.
01%/°C max, and ±0.
015%/°C max, respectively.
The internally trimmed span and offset errors are ±0.
1% max for the 2B22L and ±0.
25% max for the 2B22J/2B22K.
Both span and offset are adjustable by the optional external potentiometers.
Featuring a wide range, single supply operation (+14V to +32V), the 2B22 provides isolated +28V loop power and is capable of delivering rated current into an external 0 to 1000Ω load resistance.
The unique output stage configuration also allows the user to utilize an optional external loop power supply to interface systems designed for a twowire operation.
APPLICATIONS Functional Block Diagram meets the requirements of t...


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