REF6025
- Excellent Temperature Drift Performance
- 5 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
- High Initial Accuracy: ±0.05%
- Very-Low Noise and Distortion
- 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
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. The REF6000 family devices are well suited, but not limited, to drive the REF pin of the ADS88xx family of SAR ADCs, and ADS127xx family of delta-sigma ADCs, as well as other digital-to-analog converters (DACs).
The REF6000 family of voltage references are able to maintain an output voltage within 1LSB (18-bit) with minimal droop, even during the first conversion while driving the REF pin of the ADS8881. This feature is useful in burst-mode, event-triggered, equivalent-time sampling, and variable-sampling-rate data-acquisition systems. The REF60xx variants of REF6000 family specify a maximum temperature drift of just 5 ppm/°C and initial accuracy of 0.05% for both the voltage reference and the low output impedance buffer combined. For various temperature drift options in REF6000 family, see the Device Comparison Table.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | REF60xx High-Precision Voltage Reference With Integrated ADC Drive Buffer datasheet (Rev. B) | PDF | HTML | 2016年 8月 29日 |
| Product overview | PLC Analog Input Front-End Architectures | PDF | HTML | 2022年 7月 31日 | |
| E-book | Tips and tricks for designing with voltage references (Rev. A) | 2021年 5月 7日 | ||
| Application note | Expanding Analog Input Channels in Grid Applications (Using 16-Channel, 16-Bit, (Rev. A) | 2021年 2月 26日 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019年 6月 28日 | ||
| White paper | Voltage-reference impact on total harmonic distortion | 2016年 8月 1日 | ||
| EVM User's guide | REF6025EVM-PDK User Guide | 2016年 5月 19日 |
設計與開發
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|---|---|---|
| VSSOP (DGK) | 8 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點