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  5. AD8276

Data Sheet Rev. D
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JP Rev. B
SPICE Models
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Circuit Note Rev. A
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Alternative Parts

AD8476
AD8476

Low Power, Unity Gain Fully Differential Amplifier & ADC Driver

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

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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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  • Data Sheets (1)
  • Application Notes (2)
  • Circuit Note (1)
  • Technical Articles (5)
  • Webcasts (1)
    • Document Type

    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

    Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

    Select Model for PCN Information
    • AD8276-CHIPS-WP Production
    • AD8276ARMZ Production
    • AD8276ARMZ-R7 Production
    • AD8276ARMZ-RL Production
    • AD8276ARZ Production
    • AD8276ARZ-R7 Production
    • AD8276ARZ-RL Production
    • AD8276BRMZ Production
    • AD8276BRMZ-R7 Production
    • AD8276BRMZ-RL Production
    • AD8276BRZ Production
    • AD8276BRZ-R7 Production
    • AD8276BRZ-RL Production

    Support & Discussions

    AD8276 Discussions

    How to sense current difference using a precision ADC?
    24 week(s) ago in ADC Drivers
    RE: AD8276 Noise
    All AD8276 Discussions
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