AD693AD - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD693AD
Manufacturer

ADI
ChipWorker Part#

CW9928000
Category

Interface IC, Interface Controller
Package

CDIP-20
Description

Instrument Amplifier, 5 Amplifier, 200µV, 12V to 36V, DIP
Documentation

Datasheet

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AD693AD Specifications

Attribute	Attribute Value

Part Number	AD693AD
Manufacturer	ADI
ChipWorker Part#	CW9928000
Category	Interface IC, Interface Controller
Documentation	Datasheet
Mounting Style	Through Hole
Number of Pins	20 Pin
Case/Package	CDIP-20
Supply Voltage (DC)	36.0V (max)
Supply Current	20 mA
Number of Channels	1 Channel
Common Mode Rejection Ratio	100 dB
Quiescent Current	700 µA
Input Offset Voltage	0.2 mV
Input Bias Current	20 nA
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	12V ~ 36V
Supply Voltage (Max)	36 V
Supply Voltage (Min)	12 V
Input Voltage	12V ~ 36V
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Size-Length	26.92 mm
Size-Width	7.87 mm
Size-Height	3.56 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	Non-Compliant
Lead-Free Status	Contains Lead
ECCN Code	EAR99

Product Description

Product Details
The AD693 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 device is operated in the loop-powered mode. Alternatively, the device may be locally powered for three-wire applications when 0-20 mA operation is desired.
Precalibrated 30 mV and 60 mV input spans may be set by simple pin strapping. Other spans from 1 mV to 100 mV may be realized with the addition of external resistors. The auxiliary amplifier may be used in combination with on-chip voltages to provide six precalibrated ranges for 100 (ohm) RTDs. Output span and zero are also determined by pin strapping to obtain the standard ranges: 4-20mA, 12 ± 8 mA and 0-20 mA.
Active laser trimming of the AD693"s thin-film resistors result in high levels of accuracy without the need for additional adjustments and calibration. Total unadjusted error is tested on every device to be less than 0.5% of full scale at +25°C, and less than 0.75% over the industrial temperature range. Residual nonlinearity is under 0.05%. The AD693 also allows for the use of an external pass transistor to further reduce errors caused by self-heating.
For transmission of low-level signals from RTDs, bridges and pressure transducers, the AD693 offers a cost-effective signal conditioning solution. It is recommended as a replacement for discrete designs in a variety of applications in process control, factory automation and system monitoring.
The AD693 is packaged in a 20-pin ceramic side-brazed DIP, 20-pin Cerdip, and 20-pin LCCC and is specified over the -40°C to +85°C industrial temperature range.
### Features and Benefits
Instrumentation Amplifier Front End
Loop-Powered Operation
Independently Adjustable Output Span and Zero
Precalibrated Output Spans:
4-12 mA Unipolar
0-20 mA Unipolar
12 ± 8mA Bipolar
Precalibrated 20 mV or 60mV Input Spans
Precalibrated 100 O RTD Interface
6.2 V Reference with Up to 3.5 mA of Current Available
Uncommitted Auxiliary Amp for Extra Flexibility
Optional External Pass Transistor to Reduce Self-Heating Errors

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