REF6025
2.5-V, 5-ppm/°C high-precision voltage reference with integrated buffer & enable pin
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.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | REF60xx High-Precision Voltage Reference With Integrated ADC Drive Buffer datasheet (Rev. B) | PDF | HTML | 29 Aug 2016 |
Product overview | PLC Analog Input Front-End Architectures | PDF | HTML | 31 Jul 2022 | |
E-book | Tips and tricks for designing with voltage references (Rev. A) | 07 May 2021 | ||
Application note | Expanding Analog Input Channels in Grid Applications (Using 16-Channel, 16-Bit, (Rev. A) | 26 Feb 2021 | ||
E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 28 Jun 2019 | ||
White paper | Voltage-reference impact on total harmonic distortion | 01 Aug 2016 | ||
EVM User's guide | REF6025EVM-PDK User Guide | 19 May 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
ADS127L01EVM — ADS127L01 Evaluation Module
The ADS127L01EVM is an evaluation platform for the ADS127L01. The ADS127L01 is a 24-bit, delta-sigma analog-to-digital converter (ADC) with data rates up to 512 kSPS. It offers a unique combination of excellent dc accuracy and outstanding ac perforamnce. The high-order, chopper-stabilized modulator (...)
ADS7066EVM-PDK — ADS7066 performance demonstration kit for eight-channel, 250-kSPS, 16-bit, internal-reference ADC
The ADS7066 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS7066 successive approximation register (SAR) analog-to-digital converter (ADC)
The ADS7066EVM-PDK provides power and a communications card complete with a graphical user (...)
ADS8881EVMV2-PDK — ADS8881 18-Bit 1MSPS Serial-Interface SAR ADC Evaluation Module V2 PDK
REF6025EVM-PDK — REF6025 voltage reference evaluation module
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TIDA-010032 — Universal data concentrator reference design supporting Ethernet, 6LoWPAN RF mesh & more
TIDA-01471 — IEPE Vibration Sensor Interface for PLC Analog Input Reference Design
TIPD173 — 16 bit 1MSPS Data Acquisition Reference Design for Single-Ended Multiplexed Applications
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
VSSOP (DGK) | 8 | Ultra Librarian |
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