ADS1291
ADS1291 is 24-Bit Analog Front-End manufactured by Texas Instruments.
Features
- 1 Two low-noise PGAs and two high-resolution ADCs (ADS1292 and ADS1292R)
- Low power: 335 μW/channel
- Input-referred noise: 8 μVPP
(150-Hz BW, G = 6)
- Input bias current: 200 p A
- Data rate: 125 SPS to 8 k SPS
- CMRR: 120 d B
- Programmable gain: 1, 2, 3, 4, 6, 8, or 12
- Supplies: unipolar or bipolar
- Analog: 2.7 V to 5.25 V
- Digital: 1.7 V to 3.6 V
- Built-in right leg drive amplifier, lead-off detection, test signals
- Integrated respiration impedance measurement (ADS1292R)
- Built-in oscillator and reference
- Flexible power-down, standby mode
- SPI™-patible serial interface
- Operating temperature range:
- 40°C to +85°C
2 Applications
- Medical instrumentation (ECG) including:
- Patient monitoring: Holter, event, stress, and vital signs including ECG, AED, and telemedicine
- Personal care and fitness monitors (heart rate, respiration, and ECG)
- High-precision, simultaneous, multichannel data acquisition
Simplified Block Diagram
Test Signals and Monitors
Reference
(ADS1292R)
A1
RESP DEMOD
ADC1
A2
ADC2
To Channel
Control
Oscillator...
