TEXAS INSTRUMENTS ADS1294 ADS1294R handbook

The ADS1294/6/8/4R/6R/8R family is a low power, 8-channel, 24-bit analog front end for biopotential measurement.


TEXAS INSTRUMENTS ADS1294 ADS1294R handbook - cover page
Brand
Texas Instruments
Category
Other Electronics
Document type
Datasheet
Language
Chinese
Pages
87
File format
PDF
File size
1.7 MB
Published
13 March, 2012
Updated
30 September, 2023
Model
ADS1294
MD5 checksum
15AB5A584B224D1C6ECF90231E4EB881

About this manual

The ADS129x family comprises low‑power, multichannel, simultaneously‑sampling 24‑bit delta‑sigma ADCs with integrated programmable gain amplifiers, designed for ECG, EMG, EEG and other biopotential applications. The devices support data rates from 250 SPS up to 32 kSPS, provide a SPI‑compatible interface, four GPIO pins, and optional right‑leg drive, Wilson central terminal, and respiration circuitry.

Key specifications include 4, 6 or 8 differential input channels, supply voltage AVDD 2.7 V–5.25 V, power consumption as low as 4.1 mW in low‑power mode, input‑referred noise as low as 5 µVpp at gain = 6, and operating temperature ranges of 0 °C to +70 °C (commercial) or –40 °C to +85 °C (industrial). This manual is written in Chinese.

What's inside

  • Overview
  • Electrical Characteristics
  • Noise Measurements
  • Pin Configurations
  • Package Options
  • Lead‑off Detection
  • Respiration
  • Right‑leg Drive
  • SPI Interface
  • GPIO Pins

Specifications

Resolution24‑bit
Supply voltage (AVDD)2.7 V to 5.25 V
Input‑referred noise (gain = 6, 500 SPS)5 µVpp

Frequently asked questions

How many GPIO pins are provided on the ADS129x?

The device provides four general‑purpose I/O pins.

What is the maximum supply voltage for AVDD?

AVDD can be supplied between 2.7 V and 5.25 V.

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