Features and Benefits
- Micropower at high voltage (18 V): 22 μA maximum
- Low offset voltage: 350 µV maximum
- Low input bias current: 20 pA maximum
- Gain bandwidth product: 230 kHz at AV = 100 typical
- Unity-gain crossover: 230 kHz
- −3 dB closed-loop bandwidth: 305 kHz
- Single-supply operation: 2.7 V to 18 V
- Dual-supply operation: ±1.35 V to ±9 V
- Unity-gain stable
- Excellent electromagnetic interference immunity
The AD8657/AD8659 are dual and quad micropower, precision, rail-to-rail input/output amplifiers optimized for low power and wide operating supply voltage range applications.
The AD8657/AD8659 operate from 2.7 V to 18 V with a typical quiescent supply current of 18 μA. The devices use the Analog Devices, Inc., patented DigiTrim® trimming technique, which achieves low offset voltage. The AD8657/AD8659 also have high immunity to electromagnetic interference.
The combination of low supply current, low offset voltage, very low input bias current, wide supply range, and rail-to-rail input and output make the AD8657/AD8659 ideal for current monitoring in process and motor control applications. The combination of precision specifications makes these devices ideal for dc gain and buffering of sensor front ends or high impedance input sources in wireless or remote sensors or transmitters.
The AD8657/AD8659 are specified over the extended industrial temperature range (−40°C to +125°C). The AD8657 is available in an 8-lead MSOP package and an 8-lead LFCSP package; the AD8659 is available in a 14-lead SOIC package and 16-lead LFCSP package.
- Portable operating systems
- Current monitors
- 4 mA to 20 mA loop drivers
- Buffer/level shifting
- Multipole filters
- Remote/wireless sensors
- Low power transimpedance amplifiers
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
The Universal Precision Op Amp Evaluation Boards has been designed and optimized for many circuit configurations allowing the users to best suit their applications. These boards are all RoHs Compliant. See references below on what board to order by lead count and package.
- EVAL-PRAOPAMP-4RUZ (Quad 14-Lead TSSOP) RU-14
- EVAL-PRAOPAMP-4RZ (Quad 14-Lead SOIC) R-14
Documentation & Resources
MT-047: Op Amp Noise2/14/2015
MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps2/14/2015
Don’t Get Caught Speeding1/1/2015
Exposed Paddles and Downbonds Improve Performance and Reduce Pin Count12/1/2014
The Diamond Plot7/1/2014
Overrange Flag Indicates Data Validity11/1/2013
Design Tools and Support Communities Make Analog Fun, not Fearful10/1/2013
EngineerZone Makes Getting Answers a Breeze9/1/2013
Soft Clipping vs. Hard Clipping8/1/2013
Crystal Radio Sets and Op Amps—Both Can Detect RF Signals6/1/2013
A Capaciticectomy? Sounds Awfully Painful!6/1/2008
Tools & Simulations
Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.
Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.
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 Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|AD8659ACPZ-R7||Material Declaration||Reliability Data||16-Lead LFCSP (4mm x 4mm w/ EP)|
|AD8659ACPZ-RL||Material Declaration||Reliability Data||16-Lead LFCSP (4mm x 4mm w/ EP)|
|AD8659ARZ||Material Declaration||Reliability Data||14-Lead SOIC|
|AD8659ARZ-R7||Material Declaration||Reliability Data||14-Lead SOIC|
|AD8659ARZ-RL||Material Declaration||Reliability Data||14-Lead SOIC|
|Wafer Fabrication Data|
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Support & Discussions
Sample & Buy
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Please see the latest communication from our CCO regarding lead times.
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Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.