2.5-V, 5-ppm/°C high-precision voltage reference with integrated buffer & enable pin
Product details
Parameters
Package | Pins | Size
Features
- 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
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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. 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) | Aug. 29, 2016 |
| Application notes | Expanding Analog Input Channels in Grid Applications (Using 16-Channel, 16-Bit, | Jun. 15, 2020 | |
| White papers | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | Jun. 28, 2019 | |
| White papers | Tips and tricks for designing with voltage references | May 30, 2017 | |
| Technical articles | Why is it so challenging to design a voltage reference circuit for an ADC? | Sep. 16, 2016 | |
| White papers | Voltage-reference impact on total harmonic distortion | Aug. 01, 2016 | |
| User guides | REF6025EVM-PDK User Guide | May 19, 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
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 (...)
Features
- Includes all require support circuitry for the ADS127L01
- Enhanced evaluation software enables quicker configuration and analysis
- Configurable inputs, references, supplies and clock sources
- Easily accessible signals via testpoints and headers
Description
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 (...)
Features
- Hardware and software required for diagnostic testing, as well as accurate performance evaluation of ADS7066 SAR ADC
- USB powered; no external power supply required
- Includes precision ADC motherboard (PAMBoard) development kit that provides a convenient communication interface over a USB for power (...)
Description
Features
- Includes hardware and software required for diagnostic testing, as well as accurate performance evaluation of the ADS8881 ADC
- No external power supply needed
- Ships with PHI EVM controller, which provides convenient interface to the EVM over USB 2.0 (or higher) for power delivery and digital interface
- (...)
Description
Features
- TI’s first ultra-high precision reference
- Introduces ADC drive buffer which is an integrated high bandwidth, output impedance buffer that helps achieve the lowest distortion, ultra-low-noise data acquisition systems
- Introduces burst mode data acquisition with first-sample correct to 18-bit (...)
Design tools & simulation
Reference designs
Design files
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download TIDA-010032 BOM.pdf (73KB) -
download TIDA-010032 Assembly Drawing.pdf (144KB) -
download TIDA-010032 PCB.pdf (924KB) -
download TIDA-010032 CAD Files.zip (911KB) -
download TIDA-010032 Gerber.zip (789KB)
Design files
-
download TIDA-01471 BOM.pdf (60KB) -
download TIDA-01471 Assembly Drawing.pdf (267KB) -
download TIDA-01471 PCB.pdf (1334KB) -
download TIDA-01471 CAD Files.zip (1517KB) -
download TIDA-01471 Gerber.zip (319KB)
Design files
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download TIPD173 Altium.zip (302KB) -
download TIPD173 Gerber.zip (50KB) -
download TIPD173 BOM (Rev. A).pdf (106KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| VSSOP (DGK) | 8 | View options |
Ordering & quality
Support & training
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