24-Bit, 512kSPS, 1-Ch, Very-Low-Power, Wide-Bandwidth Delta-Sigma ADC
Product details
Parameters
Package | Pins | Size
Features
- Data Rates: Up to 512 kSPS
- AC + DC Performance:
- Passband: Up to 230 kHz
- SNR: Up to 115.5 dB
- THD: Down to –129 dB
- DC Accuracy:
- Offset Drift: 1.5 µV/°C
- Gain Drift: 0.2 ppm/°C
- Operating Modes:
- High-resolution (128 kSPS at 26 mW)
- Low-power (128 kSPS at 15 mW)
- Very-low Power: 105 dB SNR (128 kSPS at 9 mW)
- Digital Filter Options:
- Low-latency Filter: Sinc Frequency Response
- Wideband 1 Filter:
(0.45 to 0.55) × fDATA Transition Band - Wideband 2 Filter: (0.40 to 0.50) × fDATA Transition Band
- SPI™ or Frame-Sync Serial Interface
- Daisy-Chain Compatible
- Analog Supply: 2.7 V to 3.6 V
- Digital Supply: 1.7 V to 3.6 V
- Operating Temperature: –40°C to +125°C
Description
The ADS127L01 is a 24-bit, delta-sigma (ΔΣ), analog-to-digital converter (ADC) with data rates up to 512 kSPS. This device offers a unique combination of excellent dc accuracy and outstanding ac performance. The high-order, chopper-stabilized modulator achieves very low drift with low in-band noise. The integrated decimation filter suppresses modulator out-of-band noise. In addition to al low-latency filter, the ADS127L01 provides multiple Wideband filters with less than ±0.00004 dB of ripple, and an option for –116-dB stop-band attenuation at the Nyquist rate.
Traditionally, industrial delta-sigma ADCs that offer good drift performance use digital filters with large passband droop. As a result, industrial delta-sigma ADCs have limited signal bandwidth and are mostly suited for dc measurements. High-resolution ADCs in audio applications offer larger usable bandwidths, but the offset and drift specifications are significantly weaker than industrial counterparts. The ADS127L01 combines these converters, providing high-precision industrial measurement with excellent dc and ac specifications over an extended industrial temperature range of –40°C to +125°C.
A variety of operating modes allow for optimization of speed, resolution, and power. A programmable serial interface with one of three options (SPI, frame-sync slave, or frame-sync master) provides convenient interfacing across isolation barriers to microcontrollers or digital signal processors (DSPs).
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | ADS127L01 24-Bit, High-Speed, Wide-Bandwidth Analog-to-Digital Converter datasheet (Rev. B) | Sep. 22, 2016 |
E-book | Fundamentals of Precision ADC Noise Analysis | Jun. 19, 2020 | |
Application note | Communication Methods for Data Integrity Using Delta-Sigma Data Converters | Jun. 01, 2020 | |
Application note | Digital Filter Types in Delta-Sigma ADCs | Jun. 27, 2017 | |
User guide | ADS127L01 Evaluation Module User's Guide (Rev. B) | Apr. 24, 2017 | |
Selection guide | TI Components for Aerospace and Defense Guide (Rev. E) | Mar. 22, 2017 | |
Technical article | Go differential to differentiate your precision design | Aug. 11, 2016 | |
White paper | Voltage-reference impact on total harmonic distortion | Aug. 01, 2016 | |
Technical article | Delta-sigma ADC digital filter types: Wideband filters | Jul. 01, 2016 | |
Technical article | Delta-sigma ADC digital filter types | May 13, 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The ADS127L01EVM is an evaluation platform for the ADS127L01. The ADS127L01 is a 24-bit, delta-sigma analog-to-digital converter (ADC) with data rates up to 512 kSPS. It offers a unique combination of excellent dc accuracy and outstanding ac perforamnce. The high-order, chopper-stabilized modulator (...)
Features
- Includes all require support circuitry for the ADS127L01
- Enhanced evaluation software enables quicker configuration and analysis
- Configurable inputs, references, supplies and clock sources
- Easily accessible signals via testpoints and headers
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
- Complete register map
- ADC code conversions
- CRC calculator
- Digital filter plot
- Multiple device configuration
- SNR estimator
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
-
download TIDA-01013 BOM.pdf (43KB) -
download TIDA-01013 Assembly Drawing.pdf (373KB) -
download TIDA-01013 PCB.pdf (1879KB) -
download TIDA-01013 CAD Files.zip (1320KB) -
download TIDA-01013 CAD Files (TINA).zip (41KB) -
download TIDA-01013 Gerber.zip (1632KB)
Design files
-
download TIDA-010032 BOM.pdf (73KB) -
download TIDA-010032 Assembly Drawing.pdf (144KB) -
download TIDA-010032 PCB.pdf (924KB) -
download TIDA-010032 CAD Files.zip (911KB) -
download TIDA-010032 Gerber.zip (789KB)
Design files
-
download TIDA-01471 BOM.pdf (60KB) -
download TIDA-01471 Assembly Drawing.pdf (267KB) -
download TIDA-01471 PCB.pdf (1334KB) -
download TIDA-01471 CAD Files.zip (1517KB) -
download TIDA-01471 Gerber.zip (319KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
TQFP (PBS) | 32 | 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
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