ADS117L11
16-bit, 400-kSPS, low-power, wide-bandwidth delta-sigma ADC with input and reference buffers
ADS117L11
- Programmable data rate:
- Up to 400 kSPS (wideband filter)
- Up to 1.067 MSPS (low-latency filter)
- Selectable digital filter:
- Wideband or low-latency
- AC accuracy with dc precision:
- Dynamic range: 97.5 dB (200 kSPS), typical
- THD: –110 dB, typical
- INL: 0.5 LSB, typical
- Offset drift: 50 nV/°C, typical
- Gain drift: 0.6 ppm/°C, typical
- Power-scalable architecture:
- High-speed mode: 400 kSPS, 18.6 mW
- Low-speed mode: 50 kSPS, 3.3 mW
- Input and reference precharge buffers
- Internal or external clock
- Functional Safety-Capable
The ADS117L11 is a 16-bit, delta-sigma (ΔΣ), analog-to-digital converter (ADC) with data rates up to 400 kSPS using the wideband filter and up to 1067 kSPS using the low-latency filter. The device offers an excellent combination of ac performance and dc precision with low power consumption (18.6 mW in high-speed mode).
The device integrates input and reference buffers to reduce signal loading. The low-drift modulator achieves excellent dc precision with low in-band noise for outstanding ac performance. The power-scalable architecture provides two speed modes to optimize data rate, resolution, and power consumption.
The digital filter is configurable for wideband or low-latency operation, optimizing ac performance or data throughput for dc signals, all in one device.
The serial interface features daisy-chain capability to reduce the SPI I/O over an isolation barrier. Input and output data and register settings are validated by a cyclic-redundancy check (CRC) feature to enhance operational reliability.
The small 3-mm × 3-mm WQFN package is designed for limited space applications. The device is fully specified for operation over the –40°C to +125°C temperature range.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | ADS117L11 400-kSPS, Wide-Bandwidth, 16-Bit, Delta-Sigma ADC datasheet (Rev. A) | PDF | HTML | 03 Oct 2022 |
Functional safety information | ADS1x7Lx1x Functional Safety FIT Rate, FMD and Pin FMA (Rev. C) | PDF | HTML | 26 Sep 2024 | |
Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 29 Mar 2023 | |
Design guide | Four-Channel Synchronous IEPE Vibration Sensor Interface Reference Design | PDF | HTML | 28 Nov 2022 | |
Application brief | THP210 and ADS127L11 Performance | 28 Mar 2022 | ||
Application brief | ADS127L11 in Simultaneous-Sampling Systems | PDF | HTML | 12 Jul 2021 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
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The PDK includes the ADS127L11 evaluation board, precision host interface (PHI) (...)
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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
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
WQFN (RUK) | 20 | Ultra Librarian |
Ordering & quality
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- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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Support & training
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