The GX1294R physiological electrical acquisition analog front-end is 100% compatible with the ADS1294R sleep monitor.

Sleep monitors are used to monitor and record physiological parameters during sleep, and generally have more comprehensive monitoring data for clinical diagnosis and telemedicine, with small intelligence and easy operation. Helping sleep monitors to accurately analyze sleep stages and assess sleep quality, they provide reliable data support for sleep disorder diagnosis and health management.

GX1294R physiological electrical acquisition analog front-end can accurately acquire sleep-related bioelectric signals such as EEG, ECG, EMG, etc., and is capable of 100% software and hardware compatibility ADS1294R used in sleep monitor solutions. This GX1294R is designed for ECG application scenarios with respiration detection, right leg drive, lead detachment detection, pacing detection, and WCT, and it can be switched to an internal clock and internal reference, thus simplifying ECG peripheral circuitry and significantly reducing the size, power consumption and cost of products for this application.

The GX1294R features a built-in programmable gain amplifier, internal reference, and built-in oscillator. It can be configured with a multiplexer to select the signals connected to the main ADC channel for Offset test, temperature monitoring, power supply measurement and channel test, making it easier to monitor the environmental configuration in which the chip and the product are operating.

The main features of GX1294R are as follows:

- Data rate: 31.25SPS to 32kSPS

- Programmable Gain: 1, 2, 3, 4, 6, 8 or 12

- Ultra-low input reference noise: 4.07μVpp (0.64μVrms) (BW=150Hz,G=6)

- CMRR:120dB

- Flexible power modes: High-speed mode (HS), Low-power mode (LP), Ultra-low-power mode (ULP)

- Low power mode, power consumption only 410µW (AVDD=3V, DVDD=1.8V, ODR= 500SPS, G=6)

- Built-in low temperature drift reference; built-in clock with external output and adjustable frequency.

- Built-in right leg drive amplifier, lead shedding detection, temperature sensor, test signals

- Support digital pacing detection

- Adjustable data buffer depth (1/2/4/8/16/32)

- Offset/Gain error calibration function

- Power supply range: analog power supply: 2.7V to 5.25V; digital power supply: 1.8V to 5.25V

- Flexible power-down and standby modes

- SPI interface

- Operating temperature range: -40°C to +85°C