DatasheetsPDF.com

AM452

Analog Microelectronics
Part Number AM452
Manufacturer Analog Microelectronics
Description Voltage-to-current transducer
Published Dec 21, 2011
Detailed Description AM452 – Voltage-to-current transducer IC with a differential input PRINCIPLE FUNCTION Amplification and conversion of di...
Datasheet PDF File AM452 PDF File

AM452
AM452

Overview
AM452 – Voltage-to-current transducer IC with a differential input PRINCIPLE FUNCTION Amplification and conversion of differential input voltages (±400mV with a CMIR of 1.
5 – VCC-3V) into an adjustable current output of 0/4.
.
.
20mA, for example.
The offset and maximum output currents are independently adjustable in a wide range.
The IC is suitable for both 2- and 3-wire applications and as a HART® carrier IC.
VCC = 6…35V Differential input ± 400mV AM452 IOUT = z.
B.
0/4.
.
.
20mA VREF= 5/10V IS = max 10mA TYPICAL APPLICATIONS Transducers for differential input signals in current output values for: • Transducers for sensor applications with an internal sensing element supply • Drivers for the analog industrial power grid (e.
g.
remote display in current loop operation) • Differential impedance converters • Carrier for standard HART® protocol communications • Modular signal conditioning with digital correction (Frame concept [1]) Analog Microelectronics GmbH An der Fahrt 13, D – 55124 Mainz Phone: +49 (0)6131/91 073-0 Fax: +49 (0)6131/91 073-30 Internet: http://www.
analogmicro.
de Email: info@analogmicro.
de February 2008 - Rev 1.
2 - Page 1/21 AM452 – Voltage-to-current transducer IC with a differential input TABLE OF CONTENTS PRINCIPLE FUNCTION 1 FEATURES 3 SCHEMATIC 3 GENERAL DESCRIPTION 3 ELECTRICAL SPECIFICATIONS 4 BOUNDARY CONDITIONS 7 DETAILED DESCRIPTION OF FUNCTIONS 8 Instrumentation amplifier (IA) 8 Operational amplifier stage (OP1) 8 Zero adjust stage 8 SET stage 8 Voltage-to-current converter (V/I converter) 8 Reference voltage source 8 Additional operational amplifier OP2 8 OPERATING AM452 8 2- and 3-wire applications in general [2] 8 Differences in the AM452 circuitry with 2- and 3-wire applications 8 Selecting the supply voltage 8 Setting the offset and output current range for VIN = 0 8 OPERATING AM452: IMPORTANT POINTS TO NOTE 8 DIMENSIONING 8 APPLICATIONS 8 Typical 3-wire application with a differential in...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)