ADS8686S
16-channel 16-bit 1-MSPS dual simultaneous-sampling ADC with integrated analog front end (AFE)
ADS8686S
- 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
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 | ||
---|---|---|---|---|
* | Data sheet | ADS8686S 16-Channel, 16-Bit, 1-MSPS, Dual, Simultaneous-Sampling ADC With Integrated Analog Front-End datasheet (Rev. C) | PDF | HTML | 24 Jul 2020 |
Application brief | Precision ADCs in Servo Drives | PDF | HTML | 22 Aug 2024 | |
Application note | EMC Compliance Testing for Precision ADC Systems (Rev. A) | PDF | HTML | 27 May 2022 | |
Application note | Expanding Analog Input Channels in Grid Applications (Using 16-Channel, 16-Bit, (Rev. A) | 26 Feb 2021 | ||
Application note | Reducing Phase Delay by Averaging on ADS8686S with Burst Sequencer Mode | PDF | HTML | 11 Jan 2021 | |
Circuit design | Circuit for protecting ADC with TVS diode and PTC fuse | 03 Aug 2020 | ||
Application brief | Wide Common-Mode Differential Analog Input Module Solutions for Factory Automati | 15 Jan 2020 | ||
EVM User's guide | ADS8686SEVM-PDK User's Guide | 11 Nov 2019 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
ADS8686SEVM-PDK — ADS8686S 16-channel 16-bit 1-MSPS dual simultaneous-sampling ADC performance demonstration kit (PDK)
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 (...)
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
TIDA-01576 — High accuracy analog input module reference design with 16-bit 1-MSPS dual simultaneous-sampling ADC
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
LQFP (PZA) | 80 | 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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