Home Data converters Analog-to-digital converters (ADCs) Precision ADCs
Home
Data converters
Analog-to-digital converters (ADCs)
Precision ADCs

ADS127L11

ACTIVE

24-bit, 400-kSPS, delta-sigma ADC with easy-to-drive inputs and wideband or low-latency filters

Order now
Data sheet

ADS127L11

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 24 Sample rate (max) (ksps) 1000 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential, Pseudo-Differential, Single-ended Rating Catalog TI functional safety category Functional Safety-Capable Reference mode External Input voltage range (max) (V) 5 Input voltage range (min) (V) 0 Features Daisy-Chainable, Oscillator, Wideband Operating temperature range (°C) -40 to 125 Analog supply voltage (min) (V) 2.85 Analog supply voltage (max) (V) 5.5 SNR (dB) 110 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
Resolution (Bits) 24 Sample rate (max) (ksps) 1000 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential, Pseudo-Differential, Single-ended Rating Catalog TI functional safety category Functional Safety-Capable Reference mode External Input voltage range (max) (V) 5 Input voltage range (min) (V) 0 Features Daisy-Chainable, Oscillator, Wideband Operating temperature range (°C) -40 to 125 Analog supply voltage (min) (V) 2.85 Analog supply voltage (max) (V) 5.5 SNR (dB) 110 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
WQFN (RUK) 20 9 mm² (3 mm × 3 mm) TSSOP (PW) 20 41.6 mm² (6.5 mm × 6.4 mm)
  • 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: 111.5 dB (200 kSPS)
    • THD: –120 dB
    • INL: 0.9 ppm of FS
    • Offset drift: 50 nV/°C
    • Gain drift: 0.6 ppm/°C
  • 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
  • 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: 111.5 dB (200 kSPS)
    • THD: –120 dB
    • INL: 0.9 ppm of FS
    • Offset drift: 50 nV/°C
    • Gain drift: 0.6 ppm/°C
  • 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 ADS127L11 is a 24-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, allowing wideband ac performance or data throughput for dc signals to be optimized, 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 and 6.5-mm × 4.4-mm TSSOP packages are designed for limited space applications. The device is fully specified for operation over the –40°C to +125°C temperature range.

The ADS127L11 is a 24-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, allowing wideband ac performance or data throughput for dc signals to be optimized, 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 and 6.5-mm × 4.4-mm TSSOP packages are designed for limited space applications. The device is fully specified for operation over the –40°C to +125°C temperature range.
filter Find other Precision ADCs
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device.
ADS127L21 ACTIVE 24-bit, 512-kSPS wide-bandwidth delta-sigma ADC with programmable IIR and FIR filters Custom filters
Same functionality with different pin-out to the compared device.
ADS127L18 ACTIVE Eight-channel, simultaneous-sampling, 512-kSPS, wideband 24-bit delta-sigma ADC Higher sampling rate (512 kSPS), higher channel count (8)
Similar functionality to the compared device.
ADS117L11 ACTIVE 16-bit, 400-kSPS, low-power, wide-bandwidth delta-sigma ADC with input and reference buffers Pin-to-pin compatible 16-bit resolution ADC

Technical documentation

No results found. Please clear your search and try again.
View all 13
Top documentation Type Title Format options Date
* Data sheet ADS127L11 400-kSPS, Wide-Bandwidth, 24-Bit, Delta-Sigma ADC datasheet (Rev. C) PDF | HTML Sep 6, 2022
Application brief High Speed Current Sensing for Data Center mCRPS Standards PDF | HTML Apr 7, 2026
Application note A Simple, Java-Based CRC Calculator PDF | HTML Mar 4, 2026
Application note Design Considerations for Multiple Wide Bandwidth Delta- Sigma ADCs in Simultaneous-Sampling Systems (Rev. A) PDF | HTML Dec 29, 2025
Product overview High Speed Amplifiers for In-Vitro Diagnostics (IVD) Analog Front End PDF | HTML Apr 10, 2025
Functional safety information ADS1x7Lx1x Functional Safety FIT Rate, FMD and Pin FMA (Rev. C) PDF | HTML Sep 26, 2024
Application note Achieve High SNR with the PGA855, Fully Differential Programmable-Gain Amplifier PDF | HTML Mar 21, 2024
Application note Four Channel Analog to Digital Interface with Sitara AM243x MCU+ PDF | HTML Apr 20, 2023
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML Mar 29, 2023
Design guide Four-Channel Synchronous IEPE Vibration Sensor Interface Reference Design PDF | HTML Nov 28, 2022
Product overview PLC Analog Input Front-End Architectures PDF | HTML Jul 31, 2022
Application brief THP210 and ADS127L11 Performance PDF | HTML Mar 28, 2022
Technical article Balancing ADC size, power, resolution and bandwidth in precision data-acquisition PDF | HTML Dec 3, 2021

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

ADS127L11EVM-PDK — ADS127L11 evaluation module for ADC with easy-to-drive inputs and wideband or low-latency filters

The ADS127L11 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the ADS127L11, which is a 24-bit, high-speed, wide-bandwidth, delta-sigma (ΔΣ) analog-to-digital converter (ADC).

The PDK includes the ADS127L11 evaluation board, precision host interface (PHI) (...)

User guide: PDF | HTML
Supported products & hardware
In stock
Limit:
??asset.out-of-stock-ti_en_US??
Not available
Support software

ADS127L11-C-EXAMPLE-CODE — ADS127L11 C Example Code

Expedite your embedded design using this example C code for the ADS127L11
Supported products & hardware
Simulation model

ADS127L11 IBIS Model

SBAM459.ZIP (105 KB) - IBIS model
Supported products & hardware
Simulation model

ADS127L11 TINA-TI Reference Design

SBAM467 (3131 KB) - TINA-TI reference design
Supported products & hardware
Calculation tool

ADC-DESIGN-CALC — Online design calculator tool for TI Precision ADCs

ADC-DESIGN-CALC is an online resource with multiple ADC calculator tools (such as Digital Filter Response, Code-to-Voltage, CMR, CRC, etc.) for TI Precision ADCs.
Supported products & hardware
Calculation tool

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
Calculation tool

SBAR019 — ADS127L11 Design Calculator

Supported products & hardware
Design tool

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
Supported products & hardware
Reference design

TIDA-010249 — Four-channel synchronous vibration sensor interface reference design

This reference design explains the theory, design and testing of a synchronous, four-channel wideband high-resolution interface. The main targets are the vibration sensing applications, but the design can also be applied to any application that requires wideband, such as three-phase voltage and (...)
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
WQFN (RUK) 20 Ultra Librarian
TSSOP (PW) 20 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos