The LTC1864A is a high-performance, 10-bit analog-to-digital converter (ADC) from Linear Technology. It features a high-speed conversion rate of up to 50 MSPS and a low power consumption of only 1.9 mW at 25°C. The ADC has an input range of 0 V to 5 V and supports both single-ended and differential input configurations. Its high resolution, fast conversion time, and low power make it suitable for various applications including data acquisition, industrial control, and medical devices.