16-channel 16-bit 1-MSPS dual simultaneous-sampling ADC with integrated analog front end (AFE)
Product details
Parameters
Package | Pins | Size
Features
- 16-channel, 16-bit ADC with integrated analog front-end
- Dual simultaneous sampling: 8x2 channels
- Supply:
- Analog: 5 V
- Digital: 1.8 V to 5 V
- Constant 1-MΩ input impedance front-end
- Independently programmable input ranges with 20% overrange
- Programmable low-pass filter:
- 15 kHz, 39 kHz, 376 kHz
- Excellent DC and AC performance
- On-chip reference and reference buffer
- Excellent over temperature performance
- Overvoltage input clamp with 8-kV ESD
- Optional cyclic redundancy check (CRC) error checking
- On-chip self diagnostic function
- Temperature range: –40°C to +125°C
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Description
The ADS8686S is a 16-channel data acquisition (DAQ) system based on a dual simultaneous-sampling, 16-bit successive approximation register (SAR) analog-to-digital converter (ADC). The ADS8686S features a complete analog front-end for each channel with an input clamp, 1-MΩ input impedance, independently programmable gain amplifier (PGA), programmable low-pass filter, and an ADC input driver. The device also features a low-drift, precision reference with a buffer to drive the ADCs. A flexible digital interface supporting serial, parallel, and byte communication enables the device to be used with a variety of host controllers.
The ADS8686S can be configured to accept ±10-V, ±5-V, or ±2.5-V bipolar inputs with a 20% overrange option using a single 5-V supply. The high input impedance allows direct connection with sensors and transformers, thus eliminating the need for external driver circuits. The ADS8686S has a highly configurable channel sequencer to reduce the sequencing overhead on the backend controller or processor. The high performance and accuracy, along with zero-latency conversions offered by this device make the ADS8686S a great choice for multiple industrial applications.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | ADS8686S 16-Channel, 16-Bit, 1-MSPS, Dual, Simultaneous Sampling ADC datasheet (Rev. C) | Jul. 24, 2020 |
Application note | Expanding Analog Input Channels in Grid Applications (Using 16-Channel, 16-Bit, (Rev. A) | Feb. 26, 2021 | |
Application note | Reducing Phase Delay by Averaging on ADS8686S with Burst Sequencer Mode | Jan. 11, 2021 | |
Application note | Circuit for protecting ADC with TVS diode and PTC fuse | Aug. 03, 2020 | |
Application note | Wide Common-Mode Differential Analog Input Module Solutions for Factory Automati | Jan. 15, 2020 | |
User guide | ADS8686SEVM-PDK User's Guide | Nov. 11, 2019 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The ADS8686S evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the ADS8686S dual simultaneous-sampling analog-to-digital converter (ADC) with an integrated analog front end (AFE).
ADS8686SEVM-PDK includes the ADS8686SEVM board and a precision host interface (PHI (...)
Features
- Includes hardware and software required for diagnostic testing, as well as accurate performance of ADS8686S ADC
- PHI controller provides a convenient communication interface to ADS8686SEVM over USB 2.0 (or higher) for power delivery, as well as digital input/output
- Easy-to-use evaluation software for (...)
Design tools & simulation
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
- (...)
Features
- Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
- Noise calculations
- Common unit translation
- Solves common amplifier circuit design problems
- Gain selections using standard resistors
- Filter configurations
- Total noise for common amplifier configurations
- (...)
Reference designs
Design files
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
LQFP (PZA) | 80 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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