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Texas Instruments ADS1271EVM
- Part No.:
- ADS1271EVM
- Manufacturer:
- Texas Instruments
- Package:
- Datasheet:
-
ADS1271EVM.pdf
- Description:
- EVALUATION MODULE FOR ADS1271
- Quantity:
- Payment:
- Shipping:
Inventory:2,367
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Product details
Overview
ADS1271EVM from Texas Instruments is a dedicated evaluation module for the ADS1271 24-bit delta-sigma analog-to-digital converter, featuring dual ADS1271 devices (U7 and U8) in 16-pin TSSOP packages, onboard ±15V buffer amplifiers (OPA1632), 2.5V reference (REF3125), and 27MHz oscillator - designed for high-precision data acquisition in industrial test equipment and sensor signal conditioning.
For engineers reviewing the ADS1271EVM datasheet, ADS1271EVM pinout, ADS1271EVM application, or ADS1271EVM equivalent, this page delivers verified hardware configuration details, jumper-controlled analog/digital routing, SPI/FSYNC interface support, daisy-chain evaluation capability, and MMB0-based software-driven analysis - all specific to the standalone ADS1271EVM board (not the PDK bundle).
Technical Context
The ADS1271EVM implements a modular, dual-channel ADC evaluation architecture with independent analog input routing via J1 (primary), J4/J5 (auxiliary), and selectable OPA1632 buffer stages. It supports both SPI and FSYNC communication modes controlled by S7, with DRDY/FSR signals routed per mode on J2.9 (top/bottom).
Power is configurable via J6: +5VA supplies AVDD for both ADS1271s; DVDD accepts either +1.8VD or +3.3VD (factory default); ±15V at J3.1/J3.2 powers buffers only when used. Clocking options include onboard 27MHz oscillator (OBCLKSEL = high) or external source (J2.17, OBCLKSEL = low).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Device | Dual ADS1271IPW 24-bit delta-sigma ADCs in 16TSSOP packages - enables simultaneous high-resolution sampling and daisy-chain validation. |
| Analog Inputs | J1 (10-pin Samtec header) provides direct AINP/AINN access to both ADCs; J4/J5 add auxiliary differential inputs with independent REF+/REF− terminals. |
| Digital Interface | SPI-compatible serial interface (SCLK, DIN, DOUT, DRDY/FSR) on J2; supports FSYNC mode with synchronized frame control across both ADCs. |
| Reference Source | Onboard 2.5V REF3125 series reference (U2/U3) for ADCs; switch-selectable (S3/S5) between onboard, J1.20, or J4/J5 auxiliary references. |
| Buffer Amplifiers | Two OPA1632DGN fully-differential unity-gain buffers (U5/U6) with ±15V supply requirement - optimized for AC performance and noise rejection. |
| Sampling Modes | Configurable via MODE0/MODE1 pins: High-Speed (≤105kSPS), Low-Power, or High-Resolution (≤52.5kSPS) - each with distinct data rate limits enforced in software. |
| Stacking Support | Designed for up to four EVMs in stackable configuration using J2 top/bottom pin differentiation - enables 8-ADC signal chains without redesign. |
Availability
ADS1271EVM is available at Aetrix Electronics and suitable for industrial test instrumentation, precision sensor signal conditioning, and high-fidelity audio ADC validation requiring stable component supply, traceable sourcing, and long-term evaluation platform continuity.
Supply support for ADS1271EVM 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, embedded processing, and high-performance data conversion technologies, with over 50 years of innovation in precision signal chain solutions.
The ADS1271EVM belongs to TI's Modular EVM System family - engineered specifically to accelerate evaluation of high-accuracy delta-sigma ADCs like the ADS1271 in demanding measurement applications.
FAQ
What is the ADS1271EVM used for?
The ADS1271EVM is a dedicated evaluation module for the ADS1271 24-bit delta-sigma ADC. It enables hardware validation, interface testing (SPI/FSYNC), daisy-chain configuration, and AC/DC performance analysis - including FFT, THD, histogram, and time-domain waveform capture - using TI's MMB0-based software suite.
Does the ADS1271EVM include the ADS1271 ICs?
Yes, the ADS1271EVM includes two ADS1271IPW devices (U7 and U8) mounted in 16-pin TSSOP packages. These are the exact production-grade ICs specified in the ADS1271 datasheet (SBAS306), not emulators or derivatives - enabling true system-level validation before design-in.
Can the ADS1271EVM operate without the MMB0 motherboard?
Yes, the ADS1271EVM supports stand-alone operation: power can be applied directly via J3 (±15V for buffers, +5VA, +3.3VD), analog inputs connected through J1/J4/J5, and digital signals accessed via J2. However, full software analysis and automated control require the MMB0 and Windows XP–based evaluation software.
What reference voltage does the ADS1271EVM provide?
The ADS1271EVM provides a 2.5V reference using two REF3125AIDBZT series references (U2 and U3) - one dedicated to the ADS1271 ADCs and another isolated for the OPA1632 buffer amplifiers. This separation prevents supply coupling and ensures stable VOCM for differential buffering.
How is clocking configured on the ADS1271EVM?
Clocking is selected via OBCLKSEL (J2.19): high enables the onboard 27MHz oscillator (U13); low routes external clock from EXTCLK (J2.17). CLKXMODE and CLKRMODE further configure clock routing for McBSP or SPI synchronization - all controlled by physical jumpers, not firmware.
ADS1271EVM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Number of A/D Converters:
- 1
- Number of Bits:
- 24
- Sampling Rate (Per Second):
- 105k
- Data Interface:
- Serial
- Input Range:
- ±2.5V
- Power (Typ) @ Conditions:
- 92mW @ 3.3V
- Utilized IC / Part:
- ADS1271
- Contents:
- Board(s)
ADS1271EVM FAQ
1.How can I place an order for ADS1271EVM through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1271EVM 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 ADS1271EVM reliable?
The price and inventory of ADS1271EVM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1271EVM is usually 5 days.
3.What payment methods are accepted for ADS1271EVM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1271EVM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1271EVM?
ADS1271EVM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1271EVM 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 ADS1271EVM?
For technical support, including ADS1271EVM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1271EVM requirements.
6.How does Aetrix verify that ADS1271EVM is sourced from the original manufacturer or authorized distributors?
All ADS1271EVM 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 ADS1271EVM meets industry standards.
7.What is the process for return or replacement of ADS1271EVM?
All ADS1271EVM units undergo pre-shipment inspection (PSI). If there is an issue with ADS1271EVM, 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 ADS1271EVM part is unused and in its original packaging.
Return procedure for ADS1271EVM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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