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REF6125 Datasheet High-Precision Voltage Reference

Manufacturer: Texas Instruments

Overview: Product Folder Order Now Technical Documents Tools & Software Support & Community REF6125, REF6130, REF6133, REF6141, REF6145, REF6150 SBOS747B – MAY 2016 – REVISED AUGUST 2016 REF61xx High-Precision Voltage Reference.

General Description

The REF6000 family of voltage references have an integrated low output impedance buffer that enable the user to directly drive the REF pin of precision data converters, while preserving linearity, distortion, and noise performance.

Most precision SAR and Delta-Sigma ADCs, switch binary-weighted capacitors onto the REF pin during the conversion process.

In order to support this dynamic load the output of the voltage reference must be buffered with a low-output impedance (high-bandwidth) buffer.

Key Features

  • 1 Excellent Temperature Drift Performance.
  • 8 ppm/°C (max) from.
  • 40°C to +125°C.
  • Extremely Low Noise.
  • Total Noise: 5 µVRMS With 47-µF Capacitor.
  • 1/f Noise (0.1 Hz to 10 Hz): 3 µVPP/V.
  • Integrated ADC Drive Buffer.
  • Low Output Impedance: < 50 mΩ (0-200 kHz).
  • First Sample Precise to 18 Bits With ADS8881.
  • Enables Burst-Mode DAQ Systems.
  • Low Supply Current: 820 μA.
  • Low Shutdown Current: 1 µA.