Overview
The ADS1292IPBSR, produced by Texas Instruments, is a multichannel, simultaneous sampling, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) designed for high-performance and low-power applications. This device is part of the ADS1291, ADS1292, and ADS1292R family, which are optimized for portable medical electrocardiogram (ECG), sports, and fitness applications. With its high level of integration, the ADS1292IPBSR enables the creation of scalable medical instrumentation systems at reduced size, power, and overall cost.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 24-bit | |
| Data Rate | 125 SPS to 8 kSPS | |
| Input-Referred Noise | 8 µVPP (150-Hz BW, G = 6) | |
| Input Bias Current | 200 pA | |
| CMRR | 120 dB | |
| Programmable Gain | 1, 2, 3, 4, 6, 8, or 12 | |
| Analog Supply Voltage | 2.7 V to 5.25 V | V |
| Digital Supply Voltage | 1.7 V to 3.6 V | V |
| Operating Temperature Range | –40°C to +85°C | °C |
| Package Type | 32-pin TQFP (5x5 mm) | |
| Power Consumption | 335 µW/channel | µW |
Key Features
- Two low-noise programmable gain amplifiers (PGAs) and two high-resolution ADCs
- Low power consumption: 335 µW/channel
- Built-in right leg drive amplifier, lead-off detection, and test signals
- Integrated respiration impedance measurement (in ADS1292R version)
- Built-in oscillator and reference
- Flexible power-down and standby mode
- SPI™-compatible serial interface
- Flexible input multiplexer per channel for test, temperature, and lead-off detection
Applications
- Medical instrumentation (ECG): patient monitoring (Holter, event, stress), vital signs including ECG, AED, and telemedicine
- Personal care and fitness monitors: heart rate, respiration, and ECG
- High-precision, simultaneous, multichannel data acquisition
Q & A
- What is the resolution of the ADS1292IPBSR?
The ADS1292IPBSR has a 24-bit resolution.
- What is the data rate range of the ADS1292IPBSR?
The data rate range is from 125 SPS to 8 kSPS.
- What is the input-referred noise of the ADS1292IPBSR?
The input-referred noise is 8 µVPP (150-Hz BW, G = 6).
- What is the input bias current of the ADS1292IPBSR?
The input bias current is 200 pA.
- What is the common-mode rejection ratio (CMRR) of the ADS1292IPBSR?
The CMRR is 120 dB.
- What are the programmable gain options for the ADS1292IPBSR?
The programmable gain options are 1, 2, 3, 4, 6, 8, or 12.
- What is the operating temperature range of the ADS1292IPBSR?
The operating temperature range is from –40°C to +85°C.
- What type of package is the ADS1292IPBSR available in?
The ADS1292IPBSR is available in a 32-pin TQFP (5x5 mm) package.
- Does the ADS1292IPBSR have built-in respiration impedance measurement?
No, the built-in respiration impedance measurement is available in the ADS1292R version, not the ADS1292IPBSR.
- What interface does the ADS1292IPBSR use for data communication?
The ADS1292IPBSR uses an SPI™-compatible serial interface.
