AD22057

NOT RECOMMENDED FOR NEW DESIGNS

AD22057

Single Supply Sensor Interface Amplifier

NOT RECOMMENDED FOR NEW DESIGNS

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Features

Gain of ×20 Alterable from ×1 to ×160
Input CMR from Below Ground to 6× (V_S - 1 V)
Output Span 20 mV to (V_S - 0.2) V
1-, 2-, 3-Pole Low-Pass Filtering Available
Accurate Midscale Offset Capability
Differential Input Resistance 400 kΩ
Drives 1kΩ Load to +4 V Using V_S = +5 V
Supply Voltage: +3.0 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

Additional Details

The AD22057 is a single-supply difference amplifier for the amplification and low-pass filtering of small differential voltages from sources having a large common-mode voltage.

Supply voltages from +3 V to +36 V can be used. The input common-mode range extends from below ground to 24 V using a +5 V supply with excellent rejection of this common-mode voltage.

This range is achieved by the use of a special resitive attenuator at the input, laser trimmed to a very high differential balance. Low initial offset voltage and offset voltage drift are specified, and long-term stability of gain and offset voltage is also provided.

Provisions are included for optional low-pass filtering and gain adjustment. An accurate midscale offset feature allows bipolar signals to be amplified.

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Submit your question below and we will return the best answer from ADI’s knowledge database:

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

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Part Models 2

1ku List Price Starting From $7.88

Technical Documents 4

AD22057: Single-Supply Sensor Interface Amplifier Data Sheet (Rev.B) 08/30/1994

AN-669: Effectively Applying the AD628 Precision Gain Block (Rev.0) 02/14/2015

Auto-Zero Amplifiers 03/01/2010

High-performance Adder Uses Instrumentation Amplifiers 09/03/2009

Reference Materials 1

A Designer's Guide to Instrumentation Amplifiers, 3rd Edition, 2006 01/02/2006

Design Resources 2

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD22057RZ	8-Lead SOIC	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
AD22057RZ-RL	8-Lead SOIC	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys