Overview
The ADS1293CISQE/NOPB from Texas Instruments is a highly integrated, low-power, 3-channel analog front-end (AFE) designed specifically for biopotential measurements, particularly in electrocardiogram (ECG) applications. This device is optimized for portable, low-power medical, sports, and fitness devices, offering high levels of integration and exceptional performance. It enables the creation of scalable medical instrumentation systems with reduced size, power, and overall cost.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 3 | - |
| Resolution | 24-bit | - |
| Data Rate | Up to 25.6 ksps | - |
| Differential Input Voltage Range | ±400 mV | mV |
| Analog Supply Voltage | 2.7 V to 5.5 V | V |
| Digital I/O Supply Voltage | 1.65 V to 3.6 V | V |
| Input-Referred Noise | 7 µVpp (40-Hz Bandwidth) | µVpp |
| Input Bias Current | 175 pA | pA |
| Power Consumption per Channel | 0.3 mW | mW |
| Operating Temperature Range | -20°C to 85°C | °C |
| Package Type | 28-pin WQFN (5x5 mm) | - |
Key Features
- Three high-resolution digital ECG channels with simultaneous pace output
- EMI-hardened inputs with flexible routing switch
- Low power consumption: 0.3 mW/channel
- Right-leg drive amplifier and Wilson/Goldberger reference terminals
- AC and DC lead-off detection
- ALARMB pin for interrupt-driven diagnostics and battery voltage monitoring
- Built-in oscillator and reference
- Flexible power-down and standby modes
- Self-diagnostics alarm system
Applications
- Portable 1/2/3/5/6/7/8/12-lead ECG devices
- Patient vital sign monitoring: Holter, event, stress, and telemedicine
- Automated external defibrillators
- Sports and fitness devices (heart rate and ECG monitoring)
Q & A
- What is the primary application of the ADS1293CISQE/NOPB?
The primary application of the ADS1293CISQE/NOPB is in portable, low-power medical, sports, and fitness electrocardiogram (ECG) devices.
- How many channels does the ADS1293CISQE/NOPB have?
The ADS1293CISQE/NOPB has three high-resolution digital ECG channels.
- What is the resolution of the ADS1293CISQE/NOPB?
The resolution of the ADS1293CISQE/NOPB is 24-bit.
- What is the maximum data rate of the ADS1293CISQE/NOPB?
The maximum data rate of the ADS1293CISQE/NOPB is up to 25.6 ksps.
- What is the differential input voltage range of the ADS1293CISQE/NOPB?
The differential input voltage range of the ADS1293CISQE/NOPB is ±400 mV.
- What are the power supply voltage ranges for the ADS1293CISQE/NOPB?
The analog supply voltage range is 2.7 V to 5.5 V, and the digital I/O supply voltage range is 1.65 V to 3.6 V.
- What is the input-referred noise of the ADS1293CISQE/NOPB?
The input-referred noise of the ADS1293CISQE/NOPB is 7 µVpp in a 40-Hz bandwidth.
- Does the ADS1293CISQE/NOPB have built-in diagnostic features?
Yes, the ADS1293CISQE/NOPB includes a self-diagnostics alarm system and an ALARMB pin for interrupt-driven diagnostics.
- What is the operating temperature range of the ADS1293CISQE/NOPB?
The operating temperature range of the ADS1293CISQE/NOPB is -20°C to 85°C.
- What package type is the ADS1293CISQE/NOPB available in?
The ADS1293CISQE/NOPB is available in a 28-pin WQFN package (5x5 mm).
