Features and Benefits
- Pin Selectable Gains of 10 and 100
- True Single-Supply Operation
Single-Supply Range of +2.4V to +10V
Dual-Supply Range of ±1.2V to ±6V
Wide Output Voltage Range of 30 mV to 4.7V
- Includes Input Protection
Series Resistive Inputs
(RIN = 200 kΩ)
RFI Filters Included
Allows 50V Continuous Overload
- Optional Low-Pass Filtering
- Excellent DC Performance
Low Input Offset Voltage: 500 µV Max
Large Common-Mode Range:
0V to +54V
Low Power: 1.2 mW (VS = +5V)
Good CMR of 90 dB Typ
- AC Performance
Fast Settling Time: 24 µs (0.01%)
The AD626 is a low cost, true single supply differential amplifier designed for amplifying and low-pass filtering small differential voltages from sources having a large common-mode voltage.
The AD626 can operate from either a single supply of +2.4 V to +10 V, or dual supplies of ±1.2 V to ±6 V. The input common-mode range of this amplifier is equal to 6 (+VS - 1 V) which provides a +24 V CMR while operating from a +5 V supply. Furthermore, the AD626 features a CMR of 90 dB typ.
The amplifier's inputs are protected against continuous overload of up to 50 V, and RFI filters are included in the attenuator network. The output range is +0.03 V to +4.9 V using a +5 V supply. The amplifier provides a preset gain of 10, but gains between 10 to 100 can be easily configured with an external resistor. Furthermore, a gain of 100 is available by connecting the G = 100 pin to analog ground. The AD626 also offers low-pass filter capability by connecting a capacitor between the filter pin and analog ground.
The AD626A and AD626B operate over the industrial temperature range of -40°C to +85°C. The AD626 is available in two 8-pin packages: a plastic mini-DIP and SOIC.
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
AN-282: Fundamentals of Sampled Data Systems2/14/2015
AN-589: Ways to Optimize the Performance of a Difference Amplifier (Rev. B)2/14/2015
AN-244: A User's Guide to I.C. Instrumentation Amplifiers11/23/2004
AN-245: Instrumentation Amplifiers Solve Unusual Design Problems11/23/2004
AN-671: Reducing RFI Rectification Errors in In-Amp Circuits (Rev. 0)11/23/2004
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|
|AD626ANZ||Material Declaration||Reliability Data||8-Lead PDIP|
|AD626ARZ||Material Declaration||Reliability Data||8-Lead SOIC|
|AD626ARZ-REEL||Material Declaration||Reliability Data||8-Lead SOIC|
|AD626ARZ-REEL7||Material Declaration||Reliability Data||8-Lead SOIC|
|AD626BNZ||Material Declaration||Reliability Data||8-Lead PDIP|
|Wafer Fabrication Data|
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