AFE4500 integrated AFE for bioimpedance analysis and biosensing evaluation module


Order now


The AFE4500 evaluation module (EVM) is designed to expedite evaluation and system-development activities related to the AFE4500. AFE4500 supports synchronized signal acquisition for photoplethysmogram (PPG), electrocardiogram (ECG), and body impedance analysis (BIA).

The analog-to-digital converter (ADC) output of all three signal chains is stored in a 256-sample, first-in first-out (FIFO) block that can be read out using a serial peripheral interface (SPI) or I2C interface. The chip has separate signal chains for PPG, ECG, and Bio-Z testing that share the same ADC. Separate signal acquisition windows can be defined to acquire the PPG, ECG, and/or Bio-Z signals. The acquisition rate of each signal can be independently set. Simultaneous acquisition of up to 24 PPG signals involving up to 8 LEDs and up to 4 PDs are supported, thereby enabling applications like optical heart-rate monitoring (OHRM) and pulse oximetry.

The analog front end (AFE) supports multiple-signal acquisition modes, including a PPG-only mode and two mixed acquisition modes, each of which allows any combination of signals to be acquired.

  • Acquire data at up to 1000 SPS in evaluation mode
  • USB-based power and PC application connectivity
  • Access to all AFE4500 registers
  • USB-based firmware upgrade option

  • AFE4500 evaluation module
  • Micro-USB cable
  • HRM sensor cable
  • ECG sensor cable
  • Connector board
  • Sensor board
  • Impedance jig closed board
  • Impedance jig open board

Biosensing AFEs
AFE4500 Integrated analog front end (AFE) for bioimpedance analysis and electrical and optical biosensing
Download View video with transcript Video
Important note

AFE4500EVM user's guide is available. Request now

Order & start development

Evaluation board

AFE4500EVM — AFE4500 integrated AFE for bioimpedance analysis and biosensing evaluation module

TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

No results found. Please clear your search and try again.
View all 1
Type Title Date
Certificate AFE4500EVM EU Declaration of Conformity 31 Mar 2021

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​