REF6133 Overview
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.
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
- Low Supply Current: 820 μA
- Low Shutdown Current: 1 µA
- High Initial Accuracy: ±0.05%
- Very-Low Noise and Distortion – SNR: 100.5 dB, THD: –125 dB (ADS8881) – SNR: 106 dB, THD: –120 dB (ADS127L01)
- Output Current Drive: ±4 mA
- Programmable Short-Circuit Current
- Verified to Drive REF Pin of ADS88xx family of SAR ADCs and ADS127xx family of Wideband ΔΣ ADCs
