ADS9817
Eight-channel, 18-bit, 2-MSPS/ch dual simultaneous-sampling ADC with integrated analog front end
ADS9817
- 8-channel, 18-bit ADC with analog front-end:
- Dual, simultaneous sampling: 4 × 1 channels
- Constant 1MΩ input impedance front-end
- Programmable analog input ranges:
- ±12V, ±10V, ±7V, ±5V, ±3.5V, and ±2.5V
- Single-ended and differential inputs
- ±12V common-mode voltage range
- Input overvoltage protection: Up to ±18V
- User-selectable analog input bandwidth:
- 21kHz and 400kHz
- Integrated low-drift precision references
- ADC reference: 4.096V
- 2.5V reference output for external circuits
- Excellent AC and DC performance at full-throughput:
- DNL: ±0.5LSB, INL: ±0.8LSB
- SNR: 92dB, THD: –113dB
- Power supply:
- Analog and digital: 5V and 1.8V
- Digital interface: 1.2V to 1.8V
- Temperature range: –40°C to +125°C
The ADS981x is an 8-channel data acquisition (DAQ) system based on a dual, simultaneous-sampling, 18-bit successive approximation register (SAR) analog-to-digital converter (ADC). The ADS981x features a complete analog front-end for each channel with an input clamp protection circuit, 1MΩ input impedance, and a programmable gain amplifier (PGA) with user-selectable bandwidth options. The high input impedance allows direct connection with sensors and transformers, thus eliminating the need for external driver circuits. The ADS981x can be configured to accept unipolar or bipolar inputs with up to a ±12V common-mode voltage.
The device also features a 4.096V reference for the ADC and a 2.5V reference output for use with external circuits. A digital interface supporting 1.2V to 1.8V operation enables the ADS981x to be used without external voltage level translators.
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Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | ADS981x 18-Bit, 2-MSPS/Ch, Dual, Simultaneous-Sampling ADC With Integrated Analog Front-End datasheet (Rev. B) | PDF | HTML | 10 Oct 2024 |
Application brief | Precision ADC for Measuring Analog Outputs of Parametric Measurement Unit (PMU) (Rev. A) | PDF | HTML | 22 May 2024 | |
Technical article | 如何監控自動化測試儀和編碼器 | PDF | HTML | 14 May 2024 | |
Technical article | 자동화된 테스터 및 인코더를 모니터링하는 방법 | PDF | HTML | 14 May 2024 | |
Technical article | Higher precision ADCs to monitor automated testers and encoders | PDF | HTML | 03 May 2024 | |
Certificate | ADS9817EVM EU Declaration of Conformity (DoC) | 21 Aug 2023 | ||
Application brief | High-Speed Data Interface for Precision High-Speed ADC in Semiconductor Test | PDF | HTML | 16 Mar 2023 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
ADS9817EVM — ADS9817 evaluation module
The ADS9817 evaluation module (EVM) is a platform for evaluating the performance of the ADS9817, an 8-channel, 18-bit, 2 MSPS/channel SAR ADC with integrated analog front-end and ADC reference. The ADS9817EVM includes a standard FMC connector that can interface with standard FPGA development (...)
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)
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
RF receivers
RF transmitters
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
Supported products & hardware
Products
Series voltage references
Precision ADCs
Biosensing AFEs
Integrated precision ADCs & DACs
High-speed ADCs (≥10 MSPS)
Precision DACs (≤10 MSPS)
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
VQFN (RSH) | 56 | Ultra Librarian |
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Support & training
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