Replace ADS1220/1120 for GX1220/1120 in Smart Transmitter Mass Production Shipment

In smart transmitter applications, not only low noise and low drift are required, but also ultra-low power consumption of the analog-to-digital converter is required since smart transmitters are commonly powered by 4-20mA industrial buses.GXSC analog-to-digital converter manufacturers are committed to the precision signal chain technology, with deep accumulation and many innovations in design and process.

Currently GXSC analog-to-digital converter in the key analog performance ahead of the domestic analog-to-digital converter of the same type, in the performance index of the standard ADS1220 at the same time, but also to reduce the power consumption of 30%, lower power consumption is conducive to the transmitter and the battery-powered applications.GX1220/1120 technical specifications are described as follows:

- Resolution: 24-bit; data output rate: up to 3.7KHz

- Minimum operating current: 75μA@Duty Cycle Mode

- Input channels: 3 differential or 5 single-ended; INL: 6ppm

- PGA: 1~128@PGA ON, 1~4@PGA OFF

- Internal reference voltage: 2.048V±0.1%, 8ppm/°C

- Gain error: 0.03%@all gain; Gain drift: 3ppm/°C

- Two way IDAC: 10μA~1.5mA, 0.2% match, 20ppm/°C match temperature drift

- Accuracy of built-in temperature sensor: ±2°C

- Analog voltage: 2.7V to 5.25V or ±2.5V

- Digital Voltage: 2.7V to 5.25V

- 50Hz/60Hz suppression

- Other functions: low-side power switch, internal bias voltage, internal reference output

- Operating temperature: -40°C to +125°C

- Package: TSSOP-16/QFN-16