GX1302 Replacement for MAX1302/MAX1300 Medical Device Solution

In the field of medical devices, medical analog-to-digital converter chips can be used in the manufacturing of ECG machines, EEG machines, blood pressure monitors, CTs, etc. In addition to the analog-to-digital converter function, they also help these devices to achieve the goals of intelligence, miniaturization, and low power consumption. For medical devices like ECG monitors and blood glucose meters, which require a high degree of precision, accurately capturing subtle changes in bioelectric signals can affect the overall diagnostic results.

Compared with ordinary analog-to-digital converter chips, medical analog-to-digital converter chips have higher requirements in terms of precision, noise, stability, etc., such as MAX1302/MAX1300/LTC2372-16/LTC2372-18, etc., and the four-channel 18-bit 500kSPS analog-to-digital converter GX1302 can also meet the needs of the medical equipment field, the GX1302 can not only improve the performance and reliability of medical devices, but also reduce the power consumption and program cost of the equipment, the GX1302 has been widely used in the field of medical devices.

Significant technical advantages of the GX1302: 

The GX1302 is a 4-channel fully differential, 18-bit, SAR analog-to-digital converter (ADC) with a single VDD power supply. The chip has all the components required for a multi-channel, low-power data acquisition system built-in, including an 18-bit SAR ADC, low crosstalk 4-channel fully differential multiplexer, low-drift 4.096V reference and buffer, temperature sensors, selectable unipolar filters, and sequence generator for sequential continuous scanning of channels.

GX1302 Main Performance Parameters: 

- Resolution: 18-bit, 4-channel fully differential input, Sample Rate: 500kSPS 

- SNDR: 95.3dB@1kHz 

- Analog Input Range: VREF to VREF (VREF up to VDD) - Multiple reference source types: internal 4.096V reference source; external buffered reference source (up to 4.096V); external reference source (up to VDD) 

- Built-in temperature sensor, built-in channel sequencer, optional unipolar filter, busy indicator 

- Serial interface, SPI compatible, MICROWIRE, QSPI, and DSP 

- Supply voltage: 5V from a single supply; 1.8V to 5V for logic interface 

- Power consumption: 8.3mW@500kSPS, 1.8μW@100SPS; Standby current: 23nA