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AM460 Datasheet(PDF) 3 Page - Analog Microelectronics |
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AM460 Datasheet(HTML) 3 Page - Analog Microelectronics |
3 / 18 page Industrial Converter and Protector IC AM460 analog microelectronics April 2003 Analog Microelectronics GmbH Phone: +49 (0)6131/91 073 – 0 3/18 An der Fahrt 13, D – 55124 Mainz Fax: +49 (0)6131/91 073 – 30 Rev. 1.1 Internet: http://www.analogmicro.de E–mail: info@analogmicro.de FEATURES • Supply voltage: 6...35V • Wide working temperature range: –40°C...+85°C • Adjustable integrated reference voltage source: 4.5 to 10V • Additional voltage/current source • Operational amplifier with integrated driver stage • Adjustable amplification • Analogue parallel voltage (0...5/10V) and current output (0/4...20mA) • Protection against reverse polarity and short-circuiting • Output current limit • Low-cost device: replaces a number of discrete elements • 2- and 3-wire operation GENERAL DESCRIPTION AM460 is a universal converter and amplifier IC with a number of additional functions. The IC basi- cally consists of an amplifier, whose gain can be set externally, and parallel output stages which can con- dition signals referenced to ground in industrial voltage and current signals. An additional reference voltage source for the supply of external components is also included in the device. A further operational amplifier can be connected up as a current source, voltage reference or comparator. One of the main features of the IC is its integrated protective circuitry. The device is protected against reverse polarity, short-circuiting and has a built-in output current limit. Amplifier IC AM460 enables industrial standard voltage (e.g. 0–5/10V) and cur- rent loop (e.g. 0/4–20mA) signals to be produced relatively easily. BLOCK DIAGRAM VREF VOUT SET OUTAD INDAI GND VSET INDAV INN INP IOUT RS+ VCC CVREF CVSET V BG 4 3 7 14 12 11 10 8 16 V I 13 15 Voltage Reference 1 6 OP1 5 2 AM460 OP3 OP2 RS- 9 Figure 1: Block diagram of AM460 |
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