Product details


Type Electrocardiography (ECG) Number of input channels 3 Resolution (Bits) 24 Number of LEDs 0 Operating temperature range (C) -20 to 85 Interface type SPI open-in-new Find other Biosensing AFEs

Package | Pins | Size

WQFN (RSG) 28 25 mm² 5 x 5 open-in-new Find other Biosensing AFEs


  • Three High-Resolution Digital ECG Channels With
    Simultaneous Pace Output
  • EMI-Hardened Inputs
  • Low Power: 0.3 mW/channel
  • Input-Referred Noise: 7 µVpp (40-Hz Bandwidth)
  • Input Bias Current: 175 pA
  • Data Rate: Up to 25.6 ksps
  • Differential Input Voltage Range: ±400 mV
  • Analog Supply Voltage: 2.7 V to 5.5 V
  • Digital I/O Supply Voltage: 1.65 V to 3.6 V
  • Right-Leg Drive Amplifier
  • AC and DC Lead-Off Detection
  • Wilson and Goldberger Terminals
  • ALARMB Pin for Interrupt Driven Diagnostics
  • Battery Voltage Monitoring
  • Built-In Oscillator and Reference
  • Flexible Power-Down and Standby Modes
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The ADS1293 incorporates all features commonly required in portable, low-power medical, sports, and fitness electrocardiogram (ECG) applications. With high levels of integration and exceptional performance, the ADS1293 enables the creation of scalable medical instrumentation systems at significantly reduced size, power, and overall cost.

The ADS1293 features three high-resolution channels capable of operating up to 25.6 ksps. Each channel can be independently programmed for a specific sample rate and bandwidth allowing users to optimize the configuration for performance and power. All input pins incorporate an EMI filter and can be routed to any channel through a flexible routing switch. Flexible routing also allows independent lead-off detection, right-leg drive, and Wilson/Goldberger reference terminal generation without the need to reconnect leads externally. A fourth channel allows external analog pace detection for applications that do not use digital pace detection.

The ADS1293 incorporates a self-diagnostics alarm system to detect when the system is out of the operating conditions range. Such events are reported to error flags. The overall status of the error flags is available as a signal on a dedicated ALARMB pin.

The device is packaged in a 5-mm × 5-mm × 0.8-mm, 28-pin LLP. Operating temperature ranges from –20°C to 85°C.

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Technical documentation

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Type Title Date
* Datasheet ADS1293 Low-Power, 3-Channel, 24-Bit Analog Front-End for Biopotential Measurements datasheet (Rev. C) Dec. 17, 2014
E-book Fundamentals of Precision ADC Noise Analysis Jun. 19, 2020
Application note QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application note Digital Filter Types in Delta-Sigma ADCs Jun. 27, 2017
Technical article Offset correction improves the next generation of heart-rate smart watches Aug. 24, 2015
E-book Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs Mar. 19, 2015
Technical article A new way to illuminate the human condition Dec. 30, 2013
Technical article Oximeter signaling: There’s more than meets the eye Dec. 04, 2013
Technical article Virtual hospital implementation using a worn health monitor Nov. 13, 2013
Application note MSP430 Interface to the ADS1293 Code Library May 17, 2013
User guide ADS1293EVM User's Guide (Rev. B) Jan. 23, 2013

Design & development

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

Hardware development

document-generic User guide

The ADS1293EVM is a demonstration kit for the ADS1293, a three channel, 24-bit delta-sigma (ΔΣ) analog-to-digital converter (ADC), internal reference, and an on-board oscillator. The ADS1293 chip incorporates all of the features that are commonly required in medical electrocardiogram (...)

  • Easy to use online and offline WEBENCH Medical AFE Designer tool
  • Clickable block diagram in tool
  • Pre-programmed 3-lead and 5-lead ECG application
  • Easy-to-use evaluation software for Microsoft™ Windows XP or Windows 7
  • Built-in analysis tools including oscilloscope and histogram displays, estimated device (...)

Software development

SNAC050.ZIP (31480 KB)
SNAC054.ZIP (73 KB)

Design tools & simulation

SNAM124.ZIP (197 KB) - IBIS Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • 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
  • (...)
SNVC112.PDF (214 KB)
SNVC113.PDF (102 KB)
SNVC114.ZIP (901 KB)

Reference designs

Wireless Heart Monitor with Bluetooth Low Energy
TIDA-00096 The Wireless Heart Rate Monitor with Bluetooth low-energy (BLE) is intended as a reference design that customers can use to develop end-products for battery-powered, 3-channel health and fitness electrocardiogram (ECG) applications.  The ADS1293 is a highly integrated low-power analog front end (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
WQFN (RSG) 28 View options

Ordering & quality

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