ad693aq

CDIP, monolithic signal conditioning circuit, 0–20 mA, 6.2 V Reference, Loop-Powered Operation, Uncommitted Auxiliary Amp

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Price:: US $8.00~10.00 / piece [Get Latest Price]

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	US $8.00~10.00

PartNumber:: ad693aq

Brand:: Analog Devices - ADI | Pack: CDIP | D/C: 08+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2012-05-23

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Part Number:ad693aq
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TMS320C6414TBGLZA7

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Product Summary

The ad693aq is a monolithic signal conditioning circuit which accepts low-level inputs from a variety of transducers to control a standard 4–20 mA, two-wire current loop. An on-chip voltage reference and auxiliary amplifier are provided for transducer excitation; up to 3.5 mA of excitation current is available when the ad693aq is operated in the loop-powered mode. Alternatively, the ad693aq may be locally powered for three-wire applications when 0–20 mA operation is desired.

Parametrics

ad693aq absolute maximum ratings: (1)Supply Voltage: +36 V; (2)Reverse Loop Current: 200 mA; (3)Signal Amp Input Range: –0.3 V to VOP; (4)Reference Short Circuit to Common: Indefinite; (5)Auxiliary Amp Input Voltage Range: 0.3 V to VOP; (6)Auxiliary Amp Current Output: 10 mA; (7)Storage Temperature: –65 to +150℃; (8)Lead Temperature, 10 sec Soldering: +300℃; (9)Max Junction Temperature: +150℃.

Features

ad693aq features: (1)Instrumentation Amplifier Front End; (2)Loop-Powered Operation; (3)Precalibrated 30 mV or 60 mV Input Spans; (4)Independently Adjustable Output Span and Zero; (5)Precalibrated Output Spans: 4–20 mA Unipolar, 0–20 mA Unipolar, 12 6 8 mA Bipolar; (6)Precalibrated 100 V RTD Interface; (7)6.2 V Reference with Up to 3.5 mA of Current Available; (8)Uncommitted Auxiliary Amp for Extra Flexibility; (9)Optional External Pass Transistor to Reduce Self-Heating Errors.