Driver or library
AFE159RP4-DESIGN — AFE159RP4 design resources
The full data sheet and other design resources for this device are available here.
AFE159RP4
Low-power 4-channel ECG AFE with respiration, pacemaker, lead-off & lead quality detection, and FIFO
Data sheet
AFE159RP4
- Integrated Signal Chain for ECG, Pace Detection, and Respiration Measurement
- ECG Receiver
- Four high resolution channels at low power of 0.42mW/channel
- Flexible four leads selectable from six electrodes
- Programmable gain: 1.25 to 9
- Input-referred noise: 4µVPP in 150Hz BW
- Differential input range: ±1V with Gain = 4
- CMRR: -140dB
- Data rate: 125SPS to 128kSPS
- Pace Detection
- On-chip digital pace detection algorithm on programmable two leads
- High-speed 128kSPS pace output on two channels for software pace detection
- Respiration
- Low-noise of 24mΩPP with 2kΩ body impedance and 1kΩ defibrillator protection resistor on each electrode
- Supports Sine and Square wave excitation
- Other Features
- Built-in right leg drive amplifier steerable to any electrode
- DC lead-off detection, AC lead impedance detection, Wilson Center Terminal (WCT), Goldberger Central Terminals (GCT), test signals
- Battery voltage monitoring
- Flexible power-down and standby modes
- Built-in oscillator, PLL, and reference
- 1k sample main FIFO and 2k sample pace FIFO
- SPI-compatible serial interface
- Analog supply voltage 1: 3.15V to 5.25V
- Analog supply voltage 2: 1.7V to 1.9V
- I/O supply voltage: 1.65V to 3.6V
- Supports systems meeting AAMI EC11, AMI EC13, AMI EC38, IEC60601-1, IEC60601-2-25, IEC60601-2-27, and IEC60601-2-51 standards
The AFE1594 is a family of multichannel, simultaneous sampling, 24-bit, delta-sigma (ΔΣ) analog-to-digital converters (ADCs) with built-in programmable gain Instrumentation Amplifiers (INAs), internal reference, and an on-chip PLL. The AFE supports digital pace pulse detection, thoracic impedance measurement and incorporates all of the features that are commonly required in medical electrocardiogram (ECG) and electroencephalogram (EEG) applications. Multiple AFE159x devices can be cascaded in high channel count systems. With high levels of integration and exceptional performance, the AFE159x enables the development of scalable medical instrumentation systems at significantly reduced size, power, and overall cost.
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Technical documentation
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View all 1 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | AFE159x Low-Power, 4-Channel, 24-Bit Analog Front-Ends for Bio-Potential Measurements datasheet (Rev. A) | PDF | HTML | 12 Nov 2024 |
Design & development
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (RGZ) | 48 | Ultra Librarian |
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