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Product details

Parameters

VO (V) 4.096 Initial accuracy (Max) (%) 0.05 Temp coeff (Max) (ppm/ degree C) 5 Rating Catalog Vin (Min) (V) 4.35 Vin (Max) (V) 5.5 Iq (Typ) (uA) 820 Features Integrated Low Output Impedance Buffer Iout/Iz (Max) (mA) 4 Operating temperature range (C) -40 to 125 Shutdown current (Typ) (uA) 1 open-in-new Find other Series voltage references

Package | Pins | Size

VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Series voltage references

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
    • 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

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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.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 2
Type Title Date
* Datasheet REF60xx High-Precision Voltage Reference With Integrated ADC Drive Buffer datasheet (Rev. B) Aug. 29, 2016
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
149
Description

The ADS8332 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS8332 successive-approximation register (SAR) analog-to-digital converter (ADC). ADS8332EVMV2-PDK includes the ADS8332EVMV2 board, the precision host interface (PHI (...)

Features
  • Includes hardware and software required for diagnostic testing, as well as accurate performance evaluation of the ADS8332 ADC
  • No external power supply required
  • Ships with PHI controller that provides convenient communication interface to ADS8332EVM over USB 2.0 (or higher) for power delivery, as (...)
EVALUATION BOARD Download
149
Description
The REF6025EVM-PDK is a platform for evaluating the performance of the REF6025 voltage reference. The evaluation kit brings out the burst mode performance of the device which is a key feature of the device.
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

SIMULATION MODEL Download
SBOM990.ZIP (30 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOM991.TSC (6407 KB) - TINA-TI Reference Design
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
High accuracy analog input module reference design with 16-bit 1-MSPS dual simultaneous-sampling ADC
TIDA-01576 — This reference design accurately measures 16-channel AC voltage and current inputs using a precision 16-bit SAR ADC over a wide input range. This range covers protection and measurement requirements (including sampling requirements as per IEC 61850-9-2), which simplifies system design and improves (...)
document-generic Schematic
REFERENCE DESIGNS Download
Isolated, High-Accuracy Analog Input Module Reference Design Using 16-Bit ADC and Digital Isolator
TIDA-01214 — This reference design provides accurate measurements of AC voltage and current inputs using a precision 16-bit SAR ADC over a wide input range, covering protection and measurement range (including sampling requirements of IEC 61850-9-2), simplifying system design and improving trip time performance (...)
document-generic Schematic
REFERENCE DESIGNS Download
Multi-Rail Power Reference Design for Eliminating EMI Effects in High Performance DAQ Systems
TIDA-01054 — The TIDA-01054 reference design helps eliminate the performance degrading effects of EMI on Data Acquisition (DAQ) systems greater than 16 bits with the help of the LM53635 buck converter. The buck converter enables the designer to place power solutions close to the signal path without the unwanted (...)
document-generic Schematic
REFERENCE DESIGNS Download
ADC Voltage Reference Buffer Optimization Reference Design for High Performance DAQ Systems
TIDA-01055 — The TIDA-01055 reference design for high performance DAQ Systems optimizes the ADC reference buffer to improve SNR performance and reduce power consumption with the TI OPA837 high-speed op amp. This device is used in a composite buffer configuration and provides a 22% power improvement over (...)
document-generic Schematic
REFERENCE DESIGNS Download
20-bit 1MSPS DAQ Reference Design Optimizing Power Supply Efficiency While Minimizing EMI
TIDA-01056 — This reference design for high performance data acquisition (DAQ) systems optimizes power stage in order to reduce power consumption and minimize the effect of EMI from switching regulator by using LMS3635-Q1 buck converter.  This reference designs yields 7.2% efficiency improvement at most (...)
document-generic Schematic
REFERENCE DESIGNS Download
Reference Design Optimizing FPGA Utilization and Data Throughput for Automatic Test Equipment
TIDA-01051 — The TIDA-01051 reference design is used to demonstrate optimized channel density, integration, power consumption, clock distribution and signal chain performance of very high channel count data acquisition (DAQ) systems such as those used in automatic test equipment (ATE). Using serializers, such as (...)
document-generic Schematic
REFERENCE DESIGNS Download
Optimized Analog Front End DAQ System Reference Design for 18 bit SAR Data Converters
TIDA-01050 — The TIDA-01050 reference design aims to improve the integration, power consumption, performance, and clocking issues typically associated with automatic test equipment. This design is applicable to any ATE system but most applicable to systems requiring a large number of input channels.
document-generic Schematic
REFERENCE DESIGNS Download
16-bit 400KSPS 4-Ch. Multiplexed Data Acquisition Ref Design for High Voltage Inputs, Low Distortion
TIPD151 This TI Verified Design implements a 16-bit, differential 4-channel multiplexed data acquisition system at 400KSPS throughput for high voltage differential input of ±20 V (40 Vpk-pk) industrial applications. The circuit is realized with a 16-bit successive-approximation-resistor (SAR (...)
document-generic Schematic

CAD/CAE symbols

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VSSOP (DGK) 8 View options

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