Alternative Parts
Overview
Features and Benefits
- Wide input range beyond supplies
- Rugged input overvoltage protection
- Low supply current: 200 μA maximum per channel
- Low power dissipation: 0.54 mW at VS = 2.7 V
- Bandwidth: 550 kHz
- CMRR: 86 dB minimum, dc to 10 kHz
- System offset voltage: ±2 μV/°C maximum (B Grade)
- Low gain drift: 1 ppm/°C maximum (B Grade)
- Enhanced slew rate: 1.1 V/μs
- Wide power supply range
- Single supply: 2.0 V to 36 V
- Dual supplies: ±2 V to ±18 V
Product Details
The AD8276/AD8277 are general-purpose, unity-gain difference amplifiers intended for precision signal conditioning in power critical applications that require both high performance and low power. They provide exceptional 86 dB common-mode rejection ratio (CMRR) and high bandwidth while amplifying signals well beyond the supply rails. The on-chip resistors are laser trimmed for gain drift of 1 ppm/°C and high CMRR. The AD8276/AD8277 also have extremely low gain drift vs. temperature.
The common-mode range of the amplifiers extends to almost double the supply voltage, making these amplifiers ideal for single-supply applications that require a high common-mode voltage range. The internal resistors and electrostatic discharge (ESD) circuitry at the inputs also provide overvoltage protection to the op amps.
The AD8276/AD8277 are unity-gain stable. Although they are optimized for use as difference amplifiers, they can also be connected in high precision, single-ended configurations with G = −1, +1, or +2. The AD8276/AD8277 provide an integrated precision solution that has smaller size, lower cost, and improved performance than a discrete alternative.
The AD8276/AD8277 operate on single supplies (2.0 V to 36 V) or dual supplies (±2 V to ±18 V). The maximum quiescent supply current is 200 μA per channel, which is ideal for battery-operated and portable systems.
The AD8276 is available in the space-saving 8-lead mini small outline package (MSOP) and the standard small outline (SOIC) package, as well as in die form, and the AD8277 is offered in a 14-lead SOIC package. Both are specified for performance over the industrial temperature range of −40°C to +85°C and are fully RoHS compliant.
Applications
- Voltage measurement and monitoring
- Current measurement and monitoring
- Differential output instrumentation amplifier
- Portable, battery-powered equipment
- Test and measurement
Product Categories
Markets and Technologies
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
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AN-1579: High Voltage, High Precision Current Sensing with Output Level Shifting Using the AD8210 Current Sense Amplifier and the AD8274 Difference Amplifier (Rev. A)10/3/2018
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AN-1530: High Precision, Low Cost Current Sources Using the AD8276 Difference Amplifier and the AD8603 Op Amp (Rev. B)11/14/2017
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Electromagnetic Flow Meters Achieve High Accuracy in Industrial Applications2/1/2014 Analog Dialogue
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A Deeper Look into Difference Amplifiers2/1/2014 Analog Dialogue
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Choose Resistors to Minimize Errors in Grounded-Load Current Source4/1/2013 Analog Dialogue
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High-performance Adder Uses Instrumentation Amplifiers9/3/2009
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Difference Amplifier Forms Heart of Precision Current Source9/1/2009 Analog Dialogue
Tools & Simulations
SPICE Models
Reference Designs (1)
Design Resources
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 |
---|---|---|---|---|
AD8276-CHIPS-WP | Material Declaration | Reliability Data | CHIPS OR DIE | |
AD8276ARMZ | Material Declaration | Reliability Data | 8-Lead MSOP | |
AD8276ARMZ-R7 | Material Declaration | Reliability Data | 8-Lead MSOP | |
AD8276ARMZ-RL | Material Declaration | Reliability Data | 8-Lead MSOP | |
AD8276ARZ | Material Declaration | Reliability Data | 8-Lead SOIC | |
AD8276ARZ-R7 | Material Declaration | Reliability Data | 8-Lead SOIC | |
AD8276ARZ-RL | Material Declaration | Reliability Data | 8-Lead SOIC | |
AD8276BRMZ | Material Declaration | Reliability Data | 8-Lead MSOP | |
AD8276BRMZ-R7 | Material Declaration | Reliability Data | 8-Lead MSOP | |
AD8276BRMZ-RL | Material Declaration | Reliability Data | 8-Lead MSOP | |
AD8276BRZ | Material Declaration | Reliability Data | 8-Lead SOIC | |
AD8276BRZ-R7 | Material Declaration | Reliability Data | 8-Lead SOIC | |
AD8276BRZ-RL | Material Declaration | Reliability Data | 8-Lead SOIC | |
Wafer Fabrication Data |
PCN-PDN Information
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Support & Discussions
AD8276 Discussions
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List Pricing
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Lead Times
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