Catalog
1.2 V Precision Low Noise Shunt Voltage Reference
Key Features
• Precision 1.200 V Voltage Reference
• Ultracompact 3 mm x 3 mm SOT-23 Package
• No External Capacitor Required
• Low Output Noise: 4 µV p-p (0.1 Hz to 10 Hz)
• Initial Accuracy: ±0.3% Max
• Temperature Coefficient: 60 ppm/°C Max
• Operating Current Range: 100 µA to 10 mA
• Output Impedance: 0.3 Ω Max
• Temperature Range: –40°C to +85°C
Description
AI
Designed for space critical applications, the ADR512 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.APPLICATIONSPrecision Data Acquisition SystemsBattery-Powered Equipment:Cellular Phone, Notebook Computer, PDA, and GPS3 V/5 V, 8-/12-Bit Data ConvertersPortable Medical InstrumentsIndustrial Process Control SystemsPrecision Instruments
