AFE4960YBGT

Analog Front End (AFE) Overview

The AFE4960YBGT is a two-channel analog front end (AFE) designed for clinical wearable applications, supporting ECG and respiration impedance measurements. It operates on Rx and IO supplies ranging from 1.7 V to 1.9 V. The device features programmable instrumentation amplifier (INA) gain between 2 and 12, with input noise of 13 µVpp at gain 3 and 5 µVpp at gain 12 within the 0.5–150 Hz band. It includes an integrated Right Leg Drive (RLD) amplifier, pace pulse detection, and lead-off/impedance measurement modes. Signal outputs are digitized by a single ADC into a 128-sample, 24-bit FIFO, accessible via selectable SPI or I2C interfaces.

Analog Front End (AFE) Feature Summary

• Configurable as dual-channel ECG or single-channel ECG plus respiration impedance channel
• Integrated pace pulse detection and continuous lead on/off monitoring
• Supports IEC 60601-2-47:2012/(R)2016 and IEC 60601-2-27:2011(R)2016 compliant systems
• Bio-Z signal chain supports excitation frequencies from 30 kHz to 100 kHz

Analog Front End (AFE) Applications

• Wireless patches for in-patient and out-patient monitoring
• Event monitors for arrhythmia detection
• Hand-held ECG monitors
• Portable multi-lead ECG systems
• Patient vital sign monitoring including Holter, stress, and telemedicine

Analog Front End (AFE) Procurement Notes

Verify the specific ordering suffix 'YBGT' corresponds to the DSBGA package with a 250-unit small tape reel quantity. Confirm RoHS compliance and SNAGCU lead finish status during procurement. Ensure the supply voltage requirements of 1.7 V to 1.9 V for both Rx and IO domains are met by the system power design.

Analog Front End (AFE) Selection Notes

Select this component for applications requiring low-power, high-resolution biopotential acquisition. The device supports up to 2.048 kHz sampling for single-channel ECG and 1.36 kHz per channel for dual-channel operation. Consider parallel operation of multiple units if five-lead ECG capability is required. Verify interface compatibility with the host processor for either SPI or I2C communication.

Analog Front End (AFE) Part Context

The AFE4960YBGT belongs to the AFE4960 series manufactured by Texas Instruments. It is part of the Analog Front End – AFE product category under Data Converter ICs. The device utilizes a 36-pin DSBGA (YBG) package with a 2.6 mm x 2.6 mm body size and 0.4 mm pitch.

Analog Front End (AFE) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.