Overview
The ADS1293CISQX/NOPB, produced by Texas Instruments, is a highly integrated, low-power 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 | |
| Analog Supply Voltage | 2.7 V to 5.5 V | |
| Digital I/O Supply Voltage | 1.65 V to 3.6 V | |
| Input-Referred Noise | 7 µVpp (40-Hz Bandwidth) | |
| Input Bias Current | 175 pA | |
| Power Consumption per Channel | 0.3 mW | |
| Operating Temperature Range | -20°C to 85°C | |
| Package Type | 28-pin WQFN | |
| Package Size | 5-mm × 5-mm × 0.8-mm |
Key Features
- Three high-resolution digital ECG channels with simultaneous pace output
- EMI-hardened inputs
- 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
- 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 ADS1293CISQX/NOPB?
The primary application is for biopotential measurements, particularly in electrocardiogram (ECG) devices. - How many channels does the ADS1293CISQX/NOPB have?
The device has three high-resolution digital ECG channels. - What is the resolution of the ADS1293CISQX/NOPB?
The resolution is 24-bit. - What is the maximum data rate of the ADS1293CISQX/NOPB?
The maximum data rate is up to 25.6 ksps. - What is the differential input voltage range of the ADS1293CISQX/NOPB?
The differential input voltage range is ±400 mV. - What are the power supply voltage ranges for the analog and digital I/O?
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 ADS1293CISQX/NOPB?
The input-referred noise is 7 µVpp (40-Hz Bandwidth). - Does the ADS1293CISQX/NOPB have built-in diagnostic features?
Yes, it includes a self-diagnostics alarm system and an ALARMB pin for interrupt-driven diagnostics. - What is the operating temperature range of the ADS1293CISQX/NOPB?
The operating temperature range is -20°C to 85°C. - What is the package type and size of the ADS1293CISQX/NOPB?
The package type is 28-pin WQFN, and the size is 5-mm × 5-mm × 0.8-mm.
