ad22055r Analog Devices, Inc., ad22055r Datasheet

ad22055r

Manufacturer Part Number

ad22055r

Description

Single Supply Bridge Transducer Amplifier

Manufacturer

Analog Devices, Inc.

Datasheet

1.AD22055R.pdf (4 pages)

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GENERAL DESCRIPTION

The AD22055 accepts a differential signal from a bridge trans-

ducer whose common-mode signal can be anywhere between

the power supplies.

REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

FEATURES

Gain of 400. Alterable from 40 to 1000

Output Span 20 mV to (V

1 Pole Low-Pass Filtering Available

Offset Capability

Differential Input Resistance 230 k

Drives 1 k

Supply Voltage: +3 V to +36 V

Transient Spike Protection and RFI Filters Included

Peak Input Voltage (40 ms): 60 V

Reversed Supply Protection: –34 V

Operating Temperature Range: –40 C to +125 C

APPLICATIONS

Interface for Pressure Transducers, Position

Indicator, Strain Gages and Other Low Level Signal

Sources

Load to +4 V Using V

Figure 1. Typical Application Circuit for a Pressure Sensor Interface

– 0.25) V

= +5 V

REF

IN– GND FILT GAIN

IN+ OFS +V

AD22055

The extended temperature range allows for local signal condi-

tioning for oil and hydraulic pressure sensors as well as other

automotive sensors.

The use of an external gain resistor allows the user to compen-

sate transducer gain error and temperature drift.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 617/329-4700

Fax: 617/326-8703

OUT

IN+

IN–

FUNCTIONAL BLOCK DIAGRAM

GAIN = 400

OUTPUT

AD22055

+5 VOLT

GROUND

ANALOG

World Wide Web Site: http://www.analog.com

Transducer Amplifier

Single Supply Bridge

OFS

GND

FILT

AD22055

OUT

GAIN

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ad22055r Summary of contents

Page 1

... Tel: 617/329-4700 Fax: 617/326-8703 Single Supply Bridge Transducer Amplifier AD22055 FUNCTIONAL BLOCK DIAGRAM +V OFS FILT AD22055 8 A1 IN– GND +5 VOLT OUTPUT GAIN = 400 ANALOG GROUND World Wide Web Site: http://www.analog.com © Analog Devices, Inc., 1997 5 OUT 4 GAIN ...

Page 2

AD22055–SPECIFICATIONS Parameter Comments INPUTS (PINS 1 AND 8) V Common-Mode Range CM CMRR Common-Mode Rejection Ratio LF CMRR Common-Mode Rejection Ratio HF R Common-Mode Input Resistance Pin 1 or Pin 8 to Pin 2 INCM R Matching of Input Resistances ...

Page 3

... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ORDERING GUIDE Temperature Package Model Range Description AD22055N Plastic DIP AD22055R – +125 C Plastic SOIC *N = Plastic DIP Small Outline Package. PIN CONNECTION IN– AD22055 GND ...

Page 4

AD22055 0.210 (5.33) 0.160 (4.06) 0.115 (2.93) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 8-Lead Plastic DIP (N-8) 0.430 (10.92) 0.348 (8.84 0.280 (7.11) 0.240 (6.10 0.325 (8.25) 0.300 (7.62) 0.060 (1.52) PIN 1 0.015 ...

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