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Texas Instruments ADS117L11IRUKR
- Part No.:
- ADS117L11IRUKR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
ADS117L11IRUKR.pdf
- Description:
- 16-BIT, 400-KSPS, LOW-POWER, WID
- Quantity:
- Payment:
- Shipping:
Inventory:2,714
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Product details
Overview
ADS117L11IRUKR from Texas Instruments is a 16-bit delta-sigma analog-to-digital converter (ADC) optimized for high-fidelity data acquisition in industrial and medical systems. It delivers up to 400 kSPS with wideband filter or 1.067 MSPS with low-latency filter, 97.5 dB dynamic range at 200 kSPS, –110 dB THD, and 0.5 LSB INL - enabling precision measurement in power quality analyzers and vibration instrumentation.
For engineers reviewing the ADS117L11IRUKR datasheet, ADS117L11IRUKR pinout, ADS117L11IRUKR application, or ADS117L11IRUKR equivalent, this page provides verified technical context, real-world use cases, validated alternatives, and supply-ready procurement details - all grounded in TI's production-grade SBASAH6A specification.
Technical Context
The ADS117L11IRUKR integrates a low-drift modulator with configurable wideband or low-latency digital filtering, supporting simultaneous ac performance optimization (e.g., 97.5 dB SNR) and dc precision (50 nV/°C offset drift, 0.6 ppm/°C gain drift). Its dual-speed power-scalable architecture enables 18.6 mW operation at 400 kSPS or 3.3 mW at 50 kSPS.
It features input and reference precharge buffers, internal/external clock support, daisy-chain SPI with CRC validation, and functional safety documentation. The device operates across –40°C to +125°C and supports 1× or 2× differential input ranges with programmable reference voltage (0.5–4.096 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 distinct output codes for high-resolution signal digitization |
| Data Rate (wideband) | Up to 400 kSPS - supports real-time capture of fast transients in shock/vibration monitoring |
| Data Rate (low-latency) | Up to 1.067 MSPS - enables rapid control-loop response in closed-loop industrial systems |
| Dynamic Range | 97.5 dB at 200 kSPS - ensures detection of weak signals buried in noise, critical for acoustic sensing |
| THD | –110 dB typical - minimizes harmonic distortion in high-fidelity medical pulse oximetry waveforms |
| Offset Drift | 50 nV/°C typical - maintains calibration stability over wide temperature swings in factory automation modules |
| Power (high-speed) | 18.6 mW at 400 kSPS - balances performance and thermal budget in space-constrained DAQ systems |
Pinout & Package
The ADS117L11IRUKR is housed in a 20-pin WQFN package (RUK), 3.00 mm × 3.00 mm, with exposed thermal pad connected to AVSS for enhanced thermal dissipation in high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AINP / AINN | Differential analog input | Accepts ±VREF or ±2·VREF input range; precharge buffers reduce source loading and improve settling |
| REFP / REFN | Differential reference input | Supports 0.5–4.096 V reference; internal precharge buffer lowers effective source impedance |
| SDO/DRDY | Serial data output / data ready indicator | Configurable dual-function pin reduces I/O count; DRDY active-low signals conversion completion |
| SCLK / CS / SDI | SPI interface signals | Full-duplex SPI with daisy-chain capability and CRC validation for robust isolation barrier communication |
| START / CLK | Conversion trigger / clock input | Hardware START enables synchronized sampling across multiple ADCs; external or internal clock selectable |
| VCM | Common-mode voltage output | Provides buffered (AVDD1 + AVSS)/2 reference for driving external circuitry or biasing sensors |
| RESET | Asynchronous reset input | Active-low signal forces known state on power-up or fault recovery; internal 20-kΩ pullup simplifies design |
Key Features
| Feature | Design Value |
|---|---|
| Programmable digital filter | Selectable wideband (optimized for SNR) or low-latency (optimized for throughput) modes - one device serves both precision and speed-critical applications |
| Input/reference precharge buffers | Reduces effective input impedance to ±3 µA max (high-speed mode), enabling direct connection to high-Z sensors without external op-amps |
| Power-scalable architecture | Two discrete operating modes: 18.6 mW @ 400 kSPS or 3.3 mW @ 50 kSPS - simplifies thermal management and battery life estimation |
| Functional safety support | TI-provided documentation aids ISO 26262/IEC 61508 system-level safety analysis - reduces certification effort for automotive/industrial safety subsystems |
| Robust SPI interface | Daisy-chain capability + CRC validation on all register reads/writes - ensures data integrity across isolation barriers in noisy factory environments |
Applications
| Power Quality Analyzer | Shock & Vibration Instrumentation |
|---|---|
|
Use Scenario: Real-time monitoring of grid voltage/current harmonics, flicker, and transient events in substations and smart meters. IC Role / Device Role / Timing Role: Primary high-accuracy ADC capturing synchronized 3-phase waveforms at ≥200 kSPS with <0.5 LSB INL and low drift. Use Value: Enables Class A compliance per IEC 61000-4-30 Ed. 3 through 97.5 dB dynamic range and –110 dB THD at 200 kSPS. |
Use Scenario: High-bandwidth acquisition of accelerometer outputs in structural health monitoring and predictive maintenance systems. IC Role / Device Role / Timing Role: Delta-sigma ADC with low-latency filter (1.067 MSPS) capturing transient mechanical shocks with minimal group delay. Use Value: Achieves sub-microsecond timing resolution via 34/fDATA group delay and 68/fDATA settling time - critical for impact event localization. |
| Pulse Oximetry System | Analog Input Module |
|
Use Scenario: Simultaneous acquisition of red/infrared photodiode signals under varying ambient light and motion artifacts. IC Role / Device Role / Timing Role: Precision ADC providing 16-bit resolution and 50 nV/°C offset drift to maintain SpO₂ accuracy across patient temperature shifts. Use Value: Delivers stable dc baseline and low in-band noise (97.5 dB DR) for reliable AC/DC ratio computation in low-perfusion conditions. |
Use Scenario: Modular PLC analog input card supporting 4–20 mA, ±10 V, and thermocouple inputs in harsh industrial environments. IC Role / Device Role / Timing Role: Isolated front-end ADC with integrated precharge buffers and –40°C to +125°C operation for field-side signal conditioning. Use Value: Eliminates external buffer op-amps via ±3 µA input current (precharge on), reducing BOM cost and board area in DIN-rail mounted I/O modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision delta-sigma ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS131M08IPBSR | 8-channel, 24-bit, 64 kSPS/channel; higher resolution but lower max rate and no low-latency filter | Better suited for multi-channel, lower-bandwidth energy metering vs. single-channel high-speed DAQ | Choose ADS131M08IPBSR when channel count >1 and resolution >16-bit is mandatory; avoid for >400 kSPS needs |
| AD7768-1BCPZ | Single-channel, 24-bit, 256 kSPS; superior SNR (112 dB) but higher power (39 mW) and no programmable filter modes | Preferred for ultra-low-noise lab-grade instruments where power and latency are secondary | Choose AD7768-1BCPZ only if SNR >110 dB is required and 256 kSPS suffices; ADS117L11IRUKR offers better speed/power trade-off |
Compared with ADS131M08IPBSR and AD7768-1BCPZ, the ADS117L11IRUKR uniquely balances 16-bit precision, 400+ kSPS throughput, low 18.6 mW power, and dual-filter flexibility - making it optimal for compact, high-channel-density, or thermally constrained industrial DAQ designs where neither pure multi-channel nor ultra-low-noise extremes apply.
Availability
ADS117L11IRUKR is available at Aetrix Electronics and suitable for power quality analyzers, shock/vibration instruments, pulse oximeters, and industrial analog input modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ADS117L11IRUKR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision data converters and industrial signal chain solutions.
The ADS117L11IRUKR belongs to TI's high-performance delta-sigma ADC portfolio, designed specifically for demanding industrial, test & measurement, and medical applications requiring simultaneous ac fidelity and dc stability across extended temperature ranges.
FAQ
What is the maximum data rate of the ADS117L11IRUKR with the wideband filter?
The ADS117L11IRUKR achieves a maximum data rate of 400 kSPS when configured with the wideband digital filter. This mode prioritizes dynamic range (97.5 dB at 200 kSPS) and SNR for high-fidelity ac signal acquisition, and is specified under recommended operating conditions including AVDD1 = 5 V, IOVDD = 1.8 V, and fCLK = 25.6 MHz.
Does the ADS117L11IRUKR support both internal and external clock sources?
Yes, the ADS117L11IRUKR supports either an internal oscillator (25.6 MHz in high-speed mode, 3.2 MHz in low-speed mode) or an external clock applied to the CLK pin. The internal oscillator eliminates the need for an external crystal, while the external option allows precise synchronization across multiple devices - both configurations are fully supported in the ADS117L11IRUKR production specification.
How does the ADS117L11IRUKR handle input and reference buffering?
The ADS117L11IRUKR integrates programmable precharge buffers for both analog inputs (AINP/AINN) and reference inputs (REFP/REFN). When enabled, these buffers reduce input current to ±3 µA (high-speed mode) and lower effective source impedance - enabling direct connection to high-impedance sensors or references without external op-amps, as confirmed in the ADS117L11IRUKR electrical characteristics table.
What is the operating temperature range of the ADS117L11IRUKR?
The ADS117L11IRUKR is fully specified for continuous operation from –40°C to +125°C ambient temperature. This extended range is validated across all key parameters including INL (±1 LSB), offset drift (50–200 nV/°C), and power consumption, making the ADS117L11IRUKR suitable for under-hood automotive, industrial motor drives, and outdoor grid infrastructure deployments.
Is the ADS117L11IRUKR pin-compatible with other devices in the ADS117x family?
No - the ADS117L11IRUKR uses a unique 20-pin WQFN (RUK) package with specific pin assignments (e.g., SDO/DRDY dual-function, dedicated START and CLK pins) that differ from ADS117L02/ADS117L04 variants. While functionally related, pinout, power sequencing, and register mapping are not interchangeable; migration requires PCB redesign and firmware adaptation.
ADS117L11IRUKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 1.067M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- SPI
- Configuration:
- MUX-ADC
- Ratio - S/H:ADC:
- 0:1
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- External
- Voltage - Supply, Analog:
- 1.65V ~ 5.5V, 2.85V ~ 5.5V, 4.5V ~ 5.5V
- Voltage - Supply, Digital:
- 1.65V ~ 5.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 20-WQFN (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS117L11IRUKR FAQ
1.How can I place an order for ADS117L11IRUKR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS117L11IRUKR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADS117L11IRUKR reliable?
The price and inventory of ADS117L11IRUKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS117L11IRUKR is usually 5 days.
3.What payment methods are accepted for ADS117L11IRUKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS117L11IRUKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS117L11IRUKR?
ADS117L11IRUKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS117L11IRUKR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADS117L11IRUKR?
For technical support, including ADS117L11IRUKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS117L11IRUKR requirements.
6.How does Aetrix verify that ADS117L11IRUKR is sourced from the original manufacturer or authorized distributors?
All ADS117L11IRUKR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADS117L11IRUKR meets industry standards.
7.What is the process for return or replacement of ADS117L11IRUKR?
All ADS117L11IRUKR units undergo pre-shipment inspection (PSI). If there is an issue with ADS117L11IRUKR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADS117L11IRUKR part is unused and in its original packaging.
Return procedure for ADS117L11IRUKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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