The AD7846KP is a high-precision, low-cost integrated circuit (IC) component manufactured by Analog Devices. It is designed for multiplexing and analog-to-digital (A/D) conversion of eight analog input channels. Operating within a power supply voltage range of +5V to +15V, this IC offers several key features that make it ideal for various applications including data acquisition systems, process control, and instrumentation.
One of the standout features of the AD7846KP is its high accuracy. It incorporates a 14-bit SAR (Successive Approximation Register) ADC with a maximum sampling rate of 200 kSPS (thousand samples per second). This high resolution enables the IC to provide significantly precise digital outputs for the analog input signals.
To facilitate the multiplexing of the analog inputs, the AD7846KP employs an 8-channel input multiplexer. This multiplexer allows the selection of any of the eight analog input channels, which can be sequentially sampled by the ADC. This capability is particularly useful in systems that require monitoring or measurement of multiple analog signals.
Furthermore, the AD7846KP features a flexible input range selection mechanism. It supports both unipolar and bipolar input ranges. The unipolar input range spans from 0V to a user-defined positive reference voltage, which can be set externally. On the other hand, the bipolar input range spans from a user-defined negative reference voltage to a user-defined positive reference voltage
