Features and Benefits
The AD648 is a matched pair of low power, precision monolithic operational amplifiers. It offers both low bias current (10 pA max, warmed up) and low quiescent current (400 µA max) and is fabricated with ion-implanted FET and laser wafer trimming technologies. Input bias current is guaranteed over the AD648's entire common-mode voltage range.
The economical J grade has a maximum guaranteed offset voltage of less than 2 mV and an offset voltage drift of less than 20 µV/°C. The combination of low quiescent current and low offset voltage drift minimizes changes in input offset voltage due to self-heating effects.
The AD648 is recommended for any dual supply op amp application requiring low power and excellent dc and ac performance. In applications such as battery-powered, precision instrument front ends and CMOS DAC buffers, the AD648's excellent combination of low input offset voltage and drift, low bias current and low 1/f noise reduces output errors. High common-mode rejection and high open-loop gain ensures better than 12-bit linearity in high impedance, buffer applications.
The AD648 is pinned out in a standard dual op amp configuration and is available in seven performance grades. The AD648J and AD648K are rated over the commercial temperature range of 0°C to +70°C.
The AD648 is available in an 8-pin plastic mini-DIP and SOIC package.
Product Lifecycle Not Recommended for New Designs
This designates products ADI does not recommend broadly for new designs.
Evaluation Kits (1)
The universal precision op amp evaluation boards have 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-2CPZ (dual 8-lead LFCSP) CP-8
- EVAL-PRAOPAMP-2RMZ (dual 8-lead MSOP) RM-8
- EVAL-PRAOPAMP-2RZ (dual 8-lead SOIC) R-8
Tools & Simulations
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|
|AD648JNZ||Material Declaration||Reliability Data||8-Lead PDIP|
|AD648JRZ||Material Declaration||Reliability Data||8-Lead SOIC|
|AD648JRZ-REEL||Material Declaration||Reliability Data||8-Lead SOIC|
|AD648JRZ-REEL7||Material Declaration||Reliability Data||8-Lead SOIC|
|AD648KNZ||Material Declaration||Reliability Data||8-Lead PDIP|
|AD648KRZ||Material Declaration||Reliability Data||8-Lead SOIC|
|Wafer Fabrication Data|
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
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.