Product details

Applications 3-lead ECG, 5-lead ECG, 6-lead ECG, Patient monitoring Number of input channels 3 Resolution (Bits) 24 Number of LEDs 0 Interface type SPI Operating temperature range (C) -20 to 85
Applications 3-lead ECG, 5-lead ECG, 6-lead ECG, Patient monitoring Number of input channels 3 Resolution (Bits) 24 Number of LEDs 0 Interface type SPI Operating temperature range (C) -20 to 85
WQFN (RSG) 28 25 mm² 5 x 5
  • 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
  • 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

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.

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

Design & development

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

Evaluation board

ADS1293EVM — ADS1293 Evaluation Module

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 (...)

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Support software

ADS1293 Software

SNAC050.ZIP (31480 KB)
Support software

MSP430 Interface to ADS1293 Code Library

SNAC054.ZIP (73 KB)
Simulation model

ADS1293 IBIS Model

SNAM124.ZIP (197 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Bill of materials (BOM)

Bill of Materials for the ECG With Bluetooth Low-Energy

SNVC113.PDF (102 KB)
Gerber file

ECG With Bluetooth Low-Energy Gerber

SNVC114.ZIP (901 KB)
Reference designs

TIDA-00096 — Wireless Heart Monitor with Bluetooth Low Energy

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 (...)
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WQFN (RSG) 28 View options

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