AD8137WYCPZ-R7

差分放大器 Low Power Diff ADC Driver

Product Details

The AD8137 is a low cost differential driver with a rail-to-rail output that is ideal for driving ADCs in systems that are sensitive to power and cost. The AD8137 is easy to apply, and its internal common-mode feedback architecture allows its output common-mode voltage to be controlled by the voltage applied to one pin. The internal feedback loop also provides inherently balanced outputs as well as suppression of even-order harmonic distortion products. Fully differential and single-ended-to-differential gain configurations are easily realized by the AD8137. External feedback networks consisting of four resistors determine the closed-loop gain of the amplifier. The power-down feature is beneficial in critical low power applications.

The AD8137 is manufactured on Analog Devices, Inc., proprietary second-generation XFCB process, enabling it to achieve high levels of performance with very low power consumption.

The AD8137 is available in the small 8-lead SOIC package and 3 mm × 3 mm LFCSP package. It is rated to operate over the extended industrial temperature range of −40°C to +125°C.

**APPLICATIONS**

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ADC drivers

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Portable instrumentation

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Battery-powered applications

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Single-ended-to-differential converters

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Differential active filters

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Video amplifiers

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Level shifters

### Features and Benefits

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Fully differential

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Extremely low power with power-down feature

2.6 mA quiescent supply current @ 5 V

450 µA in power-down mode @ 5 V

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High Speed

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12-bit SFDR performance @ 500 kHz

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Fast settling time: 100 ns to 0.02%

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Low input offset voltage: ±2.6 mV max

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Low input offset current:

0.45 µA max

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Differential input and output

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Differential-to-differential or single-ended-to-differential operation

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Rail-to-rail output

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Adjustable output common-mode voltage

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See data sheet for additional features