ADS8864
16-Bit, 400-kSPS, 1-Ch SAR ADC with Single-Ended Input, SPI Interface and Daisy-Chain
ADS8864
- Sample rate: 400 kHz
- No latency output
- Unipolar, single-ended input range:
0 to +VREF - SPI™-compatible serial interface with
daisy-chain option - Excellent AC and DC performance:
- SNR: 93 dB, THD: –108 dB
- INL: ±1.0 LSB (typ), ±2.0 LSB (max)
- DNL: ±1.0 LSB (max), 16-bit NMC
- Wide operating range:
- AVDD: 2.7 V to 3.6 V
- DVDD: 1.65 V to 3.6 V
(independent of AVDD) - REF: 2.5 V to 5 V (independent of AVDD)
- Operating temperature: –40°C to +85°C
- Low-power dissipation:
- 2.6 mW at 400 kSPS
- 0.65 mW at 100 kSPS
- 65 µW at 10 kSPS
- Power-down current (AVDD): 50 nA
- Full-scale step settling to 16 Bits: 1200 ns
- Packages: VSSOP-10 and VSON-10
The ADS8864 is a 16-bit, 400-kSPS, single-ended input, analog-to-digital converter (ADC). The device operates with a 2.5-V to 5-V external reference, offering a wide selection of signal ranges without additional input signal scaling. The reference voltage setting is independent of, and can exceed, the analog supply voltage (AVDD).
The device offers an SPI-compatible serial interface that also supports daisy-chain operation for cascading multiple devices. An optional busy-indicator bit makes synchronizing with the digital host easy.
The device supports unipolar single-ended analog inputs in the range of –0.1 V to VREF + 0.1 V.
Device operation is optimized for very low-power operation. Power consumption directly scales with speed. This feature makes the ADS8864 excellent for lower-speed applications.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | ADS8864 16-bit, 400-kSPS, serial interface, micropower, miniature, single-ended input, SAR analog-to-digital converter datasheet (Rev. B) | PDF | HTML | 25 Mar 2019 |
Circuit design | Circuit for protecting low-voltage SAR ADC from electrical overstress with minim (Rev. A) | PDF | HTML | 19 Sep 2024 | |
White paper | Voltage-reference impact on total harmonic distortion | 01 Aug 2016 | ||
E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 21 May 2015 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
ADS8860EVM-PDK — ADS8860 16-bit, 1-MSPS, 1-channel SAR ADC evaluation module performance demonstration kit (PDK)
The ADS8860 evaluation module (EVM) performance demonstration kit (PDK) is an platform for evaluating the ADS8860 product, which is a successive approximation register (SAR) analog-to-digital converter (ADC).
The evaluation kit includes the ADS8860 evaluation board, precision host interface (PHI) (...)
PLABS-SAR-EVM-PDK — TI Precision Labs SAR ADC Evaluation Module Performance Demonstration Kit (PDK)
PLABS-SAR-EVM-PDK is an experimental platform used in conjunction with TI Precision Labs videos to gain a deeper understanding of successive approximation register (SAR) analog-to-digital converter (ADC) circuits. The evaluation module (EVM) platform contains two channels for common SAR (...)
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
Supported products & hardware
Products
Precision op amps (Vos<1mV)
General-purpose op amps
Audio op amps
Transimpedance amplifiers
High-speed op amps (GBW ≥ 50 MHz)
Power op amps
Video amplifiers
Line drivers
Transconductance amplifiers & laser drivers
Fully differential amplifiers
Precision ADCs
Biosensing AFEs
High-speed ADCs (≥10 MSPS)
Receivers
Touchscreen controllers
Difference amplifiers
Instrumentation amplifiers
Audio line receivers
Analog current-sense amplifiers
Digital power monitors
Analog current-sense amplifiers with integrated shunt resistor
Digital power monitors with integrated shunt resistor
Die & wafer services
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
TIPD151 — 16-bit 400KSPS 4-Ch. Multiplexed Data Acquisition Ref Design for High Voltage Inputs, Low Distortion
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
VSON (DRC) | 10 | Ultra Librarian |
VSSOP (DGS) | 10 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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