Texas Instruments LM12H458 12-Bit Plus Sign Data Acquisition System with Self-Calibration LM12H458CIV

The LM12H458CIV is a highly integrated 12-bit + sign data acquisition system designed for efficient analog-to-digital conversion. It operates on a single supply voltage of 5V and features a self-calibrating ADC that corrects for linearity and zero errors. The device supports up to 32 consecutive conversions stored in an internal 32-word FIFO data buffer and includes an 8-channel multiplexer for versatile input options. This product can operate in multiple modes, including 12-bit + sign and 8-bit + sign resolutions, and features programmable acquisition times and conversion rates. The LM12H458CIV also includes a built-in sample-and-hold function and a 2.5V bandgap reference for stable operation. It is capable of high throughput rates, with a minimum of 140k samples per second in high-speed mode. The device is suitable for applications in data logging, instrumentation, process control, and energy management. With a power consumption of 30 mW and a standby mode of 50 µW, the LM12H458CIV is designed for efficiency in various applications. The device interfaces with microprocessors or DSPs via an 8-bit or 16-bit data bus and includes a direct memory access (DMA) interface for high-speed data transfer.