ADS1298IPAGR

The ADS1298IPAGR from Texas Instruments is a multichannel, simultaneous sampling, 24-bit delta-sigma analog-to-digital converter (ADC) with integrated programmable gain amplifiers (PGAs). This device is part of the ADS129x family, specifically designed for biopotential measurements, including ECG applications.

Key electrical specifications include 8 channels, 24-bit resolution, and a data rate ranging from 250 SPS to 32 kSPS. It features low input-referred noise of 4 µV PP (at 150 Hz BW, G = 6) and a low input bias current of 200 pA. The device supports programmable gain settings of 1, 2, 3, 4, 6, 8, or 12. It operates with unipolar or bipolar supplies, with AVDD ranging from 2.7 V to 5.25 V and DVDD from 1.65 V to 3.6 V. Power consumption is rated at 0.75 mW/channel.

The ADS1298IPAGR is housed in a 64-TQFP package and supports surface mount. It operates within a temperature range of -40°C to 85°C. The device includes built-in features such as a Right Leg Drive amplifier, lead-off detection, Wilson Center Terminal, pace detection, test signals, and integrated respiration impedance measurement, supporting systems meeting various medical standards like AAMI EC11, EC13, and IEC60601 series.

This AFE is suitable for applications requiring high-precision biopotential signal acquisition, such as medical instrumentation, patient monitoring systems, and portable diagnostic devices.