Analog-to-Digital Converter GX7616 Replaces AD7616 for Battery Formation Applications

In the process of battery formation, it is necessary to accurately measure and control the voltage, current and other parameters of the battery. It reflects the chemical reaction process inside the battery and the state of charge of the battery. The analog-to-digital converter can convert the analog voltage signal of the battery into a digital signal, so as to facilitate the controller to carry out accurate measurement and analysis.

In general, the use of high-precision analog-to-digital converters can improve the accuracy of battery voltage measurement to millivolt level or even higher, GXSC 16-bit 8-channel synchronous sampling analog-to-digital converter GX7616 can accurately capture the battery in the process of formation of the voltage of the small changes, so as to accurately control the charging current and charging time, to avoid over-charging or under-charging, to ensure that the quality of battery formation. The GX7616 analog-to-digital converter integrates a digital filter, a low-drift 2.5V precision reference voltage source, a 4.5V reference voltage buffer, and supports both parallel and serial interfaces, with built-in analog input clamping protection, analog filter, and programmable gain amplifier for each channel.

Powered by a single 5V supply, the GX7616 offers throughput rates up to 200kSPS on all eight channels, supports ±10V and ±5V true bipolar input ranges, 1MΩ analog input impedance, input clamping protection up to ±30V, and ESD ratings up to 8kV. For lower throughput applications, the GX7616‘s built-in oversampling modes and flexible digital filters can be used to improve noise performance. For applications requiring lower throughput rates, the GX7616‘s built-in oversampling mode and flexible digital filters can be used to improve noise performance.

Key Performance:

- 16-bit, 200kSPS (all channels)

- Input buffer with 1MΩ analog input impedance

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

- 5V single analog power supply

- VDRIVE supply voltage: 2.3V to 5V

- ±30V input clamping protection, 8kV ESD

- 2nd order anti-alias analog filter

- On-chip precision reference source and reference voltage source buffer

- True bipolar analog input range: ±10V, ±5V

- Integrated digital filter oversampling

- SNR 86dB (no oversampling) 95dB (64x oversampling)

- QFP-64 Package 12mm x 12mm