AFE4960

AKTIV

Zweikanaliges EKG-Analog-Frontend mit integrierter Atmungs- und Tempoerkennung

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Datenblatt

document-pdfAcrobat AFE4960 Two-Channel ECG, Respiration and Pace Pulse Detection Analog Front End (AFE) for Clinical Wearables datasheet (Rev. A) (Englisch) PDF | HTML

AFE4960

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Applications

1-lead ECG, 3-lead ECG, 5-lead ECG, ECG patch, EEG, Patient monitoring

Number of input channels

2

Resolution (Bits)

22

Interface type

I2C, SPI

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Applications

1-lead ECG, 3-lead ECG, 5-lead ECG, ECG patch, EEG, Patient monitoring

Number of input channels

2

Resolution (Bits)

22

Interface type

I2C, SPI

Operating temperature range (°C)

-40 to 85

Rating

Catalog

DSBGA (YBG)

36

5.76 mm² 2.4 x 2.4

Supports ECG and respiration impedance measurement; configurable as 2-channel ECG or 1-channel ECG + 1-channel Respiration
Can be used in IEC 60601-2-47:2012/(R)2016 and IEC 60601-2-27:2011(R)2016 compliant systems
222 µA/channel while operating as 2-channel ECG
Integrated Pace pulse detection on 1 channel
Supports a 3-lead ECG, extendable to 5 leads or higher by operating two or more AFEs in parallel
ECG signal chain:
- Single channel ECG acquisition up to 2.048 kHz
- 2 channel ECG acquisition up to 1.36 kHz/channel
- RLD output to set body bias through third electrode
- Programmable INA gain from 2~12
- >1 GΩ input impedance, CMRR > 100 dB
- Input noise (0.5-150 Hz): 13 µVpp at INA gain of 3; 5 µVpp at INA gain of 12
- Integrated 370 Hz anti-aliasing low pass filter
- Mode for Continuous lead on/off detection
- Mode for Lead impedance measurement
Bio-Z signal chain:
- Measurement of Bio-impedance over excitation frequency from 30 kHz to 100 kHz
- Sine wave or square wave excitation
- Respiration impedance measurement: 45 mΩ-pp noise on a baseline impedance of 2 kΩ
Dual channel ECG channel:
- Bio-Z receiver configurable as a 2^nd ECG channel
External clock and internal oscillator modes
FIFO with 128-sample Depth, 24-bit word
SPI^TM, I²C interfaces: Selectable by pin
2.6-mm × 2.6-mm DSBGA, 0.4-mm Pitch
Supplies: Rx:1.7-1.9 V, I_O:1.7-1.9 V

Supports ECG and respiration impedance measurement; configurable as 2-channel ECG or 1-channel ECG + 1-channel Respiration
Can be used in IEC 60601-2-47:2012/(R)2016 and IEC 60601-2-27:2011(R)2016 compliant systems
222 µA/channel while operating as 2-channel ECG
Integrated Pace pulse detection on 1 channel
Supports a 3-lead ECG, extendable to 5 leads or higher by operating two or more AFEs in parallel
ECG signal chain:
- Single channel ECG acquisition up to 2.048 kHz
- 2 channel ECG acquisition up to 1.36 kHz/channel
- RLD output to set body bias through third electrode
- Programmable INA gain from 2~12
- >1 GΩ input impedance, CMRR > 100 dB
- Input noise (0.5-150 Hz): 13 µVpp at INA gain of 3; 5 µVpp at INA gain of 12
- Integrated 370 Hz anti-aliasing low pass filter
- Mode for Continuous lead on/off detection
- Mode for Lead impedance measurement
Bio-Z signal chain:
- Measurement of Bio-impedance over excitation frequency from 30 kHz to 100 kHz
- Sine wave or square wave excitation
- Respiration impedance measurement: 45 mΩ-pp noise on a baseline impedance of 2 kΩ
Dual channel ECG channel:
- Bio-Z receiver configurable as a 2^nd ECG channel
External clock and internal oscillator modes
FIFO with 128-sample Depth, 24-bit word
SPI^TM, I²C interfaces: Selectable by pin
2.6-mm × 2.6-mm DSBGA, 0.4-mm Pitch
Supplies: Rx:1.7-1.9 V, I_O:1.7-1.9 V

The AFE4960 can be configured as either a 2-channel ECG receiver or as a 1-channel ECG receiver and a respiration impedance channel. The AFE signal chains can interface in a flexible manner to up to 4 electrodes. A Right Leg Drive (RLD) amplifier output, can be used to set the body bias. The AFE has DC lead biasing for lead on/off detection, and AC lead biasing for measuring the lead impedance. Pacemaker pulse detection is supported on one channel.

All the signal chain outputs are converted by a single ADC in well-defined time slots and stored as 24-bit words in a 128-sample FIFO which can be read out using a SPI or an I²C interface.

The AFE4960 is a fully integrated solution to realize a 3-lead ECG system. Synchronized operation of two AFEs in parallel can be used to realize a 5-lead ECG.

The AFE4960 can be configured as either a 2-channel ECG receiver or as a 1-channel ECG receiver and a respiration impedance channel. The AFE signal chains can interface in a flexible manner to up to 4 electrodes. A Right Leg Drive (RLD) amplifier output, can be used to set the body bias. The AFE has DC lead biasing for lead on/off detection, and AC lead biasing for measuring the lead impedance. Pacemaker pulse detection is supported on one channel.

All the signal chain outputs are converted by a single ADC in well-defined time slots and stored as 24-bit words in a 128-sample FIFO which can be read out using a SPI or an I²C interface.

The AFE4960 is a fully integrated solution to realize a 3-lead ECG system. Synchronized operation of two AFEs in parallel can be used to realize a 5-lead ECG.

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	Typ	Titel		Datum
*	Data sheet	AFE4960 Two-Channel ECG, Respiration and Pace Pulse Detection Analog Front End (AFE) for Clinical Wearables datasheet (Rev. A)	PDF \| HTML	07 Mär 2022
	Application brief	Wearable EEG (Electroencephalography) (Rev. B)	PDF \| HTML	30 Okt 2023
	Application brief	Remote Patient Monitoring	PDF \| HTML	30 Nov 2022
	Application brief	ECG Signal Acquisition on Wearables	PDF \| HTML	15 Nov 2022
	Application brief	Analog Front End for 3-Lead and 5-Lead ECG (Rev. A)	PDF \| HTML	20 Apr 2022

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AFE4960

Zweikanaliges EKG-Analog-Frontend mit integrierter Atmungs- und Tempoerkennung

AFE4960

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Technische Dokumentation

Design und Entwicklung

AFE4960EVM — AFE4960-Evaluierungsmodul für Zweikanal-EKG-AFE mit integrierter Atmungs- und Tempoerkennung

PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool

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