ADS1299IPAG

Analog Front End (AFE) Overview

The ADS1299IPAG is a low-noise, 8-channel, simultaneous-sampling, 24-bit delta-sigma analog-to-digital converter (ADC) with an integrated programmable gain amplifier (PGA), internal reference, and onboard oscillator. Designed for biopotential measurements, it operates on a single supply voltage ranging from 4.75 V to 5.25 V. The device features very low input-referred noise of 1.0 μVPP within a 70-Hz bandwidth and supports data rates from 250 SPS to 16 kSPS. It is housed in a TQFP-64 package and functions within a temperature range of -40°C to +85°C.

Analog Front End (AFE) Feature Summary

• Eight low-noise PGAs with eight high-resolution simultaneous-sampling ADCs
• Very low input-referred noise: 1.0 μVPP (70-Hz BW)
• Integrated internal reference and onboard oscillator
• Flexible input multiplexer per channel for test, temperature, and lead-off detection

Analog Front End (AFE) Applications

• Electroencephalogram (EEG) systems
• Electrocardiogram (ECG) devices
• Auditory evoked potential (EAP) monitoring
• Brain electrical activity monitoring (BIS)

Analog Front End (AFE) Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with required operating voltages and interface protocols before integration into final designs.

Analog Front End (AFE) Selection Notes

Select this component for applications requiring high channel count and simultaneous sampling. Compare power consumption per channel against alternative models if battery life is critical. Verify that the integrated PGA gain settings meet the signal amplitude requirements of the target biopotential sensors.

Analog Front End (AFE) Part Context

The ADS1299IPAG belongs to the ADS1299 family of analog front-ends designed for medical instrumentation. It shares architectural similarities with other members like the ADS1298 but offers specific channel counts and performance characteristics tailored for EEG and ECG applications.

Analog Front End (AFE) Replacement Considerations

The ADS1299-6PAG is a verified substitute offering 6 channels instead of 8. Other family members may provide different channel counts or pin configurations; verify functional equivalence before substitution.