ADR512

1.2 V精密低噪声并联型电压基准 1.2 V Precision Low Noise Shunt Voltage Reference

Product Details

Designed for space critical applications, the is a low voltage 1.200 V, precision shunt-mode voltage reference in the ultracompact 3 mm x 3 mm SOT-23 package. The ADR512 features low temperature drift 60 ppm/ºC, high accuracy ±0.30%, and ultralow noise 4 µV p-p performance.

The ADR512"s advanced design eliminates the need for an external capacitor, yet it is stable with any capacitive load. The minimum operating current increases from a scant 100 µA to a maximum of 10 mA. This low operating current and ease of use make the ADR512 ideally suited for handheld battery-powered applications.

A TRIM terminal is available on the ADR512 to provide adjustment of the output voltage over ±0.5% without affecting the temperature coefficient of the device. This feature provides users with the flexibility to trim out any system errors.

**Applications**

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Precision Data Acquisition Systems

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Battery-Powered Equipment:

Cellular Phone, Notebook Computer, PDA, and GPS

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3 V/5 V, 8-/12-Bit Data Converters

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Portable Medical Instruments

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Industrial Process Control Systems

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Precision Instruments

### Features and Benefits

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Precision 1.200 V Voltage Reference

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Ultracompact 3 mm x 3 mm SOT-23 Package

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No External Capacitor Required

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Low Output Noise: 4 µV p-p 0.1 Hz to 10 Hz

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Initial Accuracy: ±0.3% Max

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Temperature Coefficient: 60 ppm/°C Max

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Operating Current Range: 100 µA to 10 mA

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Output Impedance: 0.3 Ω Max

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Temperature Range: –40°C to +85°C