Datasheet Details
| Part number | AM452 |
|---|---|
| Manufacturer | Analog Microelectronics |
| File Size | 336.14 KB |
| Description | Voltage-to-current transducer |
| Datasheet | AM452_AnalogMicroelectronics.pdf |
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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 munications • 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://.analogmicro.de Email: info@analogmicro.de February 2008 - Rev 1.
| Part number | AM452 |
|---|---|
| Manufacturer | Analog Microelectronics |
| File Size | 336.14 KB |
| Description | Voltage-to-current transducer |
| Datasheet | AM452_AnalogMicroelectronics.pdf |
|
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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
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