**AD7490BCPZ-REEL7: A 16-Channel, 12-Bit SAR ADC for High-Speed Data Acquisition Systems**

In the realm of high-speed data acquisition, the ability to accurately and efficiently convert multiple analog signals into digital data is paramount. The **AD7490BCPZ-REEL7**, a 16-channel, 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices, stands out as a premier solution engineered for this demanding task. This highly integrated ADC is designed to deliver exceptional performance, versatility, and reliability in complex systems.

At the core of the AD7490's capability is its **16-channel multiplexer**, which can handle up to 16 single-ended or 8 differential input signals. This high channel count makes it exceptionally suitable for applications requiring simultaneous multi-point monitoring, such as industrial process control, medical instrumentation, and automated test equipment. The integrated multiplexer simplifies system design by reducing the number of external components required, thereby saving board space and lowering the overall bill of materials.

The ADC leverages a high-speed **SAR architecture**, renowned for its precision and deterministic behavior. With a **1 MSPS (Million Samples Per Second) throughput rate**, the AD7490BCPZ-REEL7 ensures that even rapidly changing signals are captured with high fidelity. Its 12-bit resolution provides excellent dynamic performance, characterized by a low noise floor and outstanding **AC and DC accuracy**, which is critical for making precise measurements.

A key feature enhancing its usability in power-sensitive applications is its **flexible power management**. The device operates from a single 2.7 V to 5.25 V supply, accommodating a wide range of system voltages. It also includes a software-configurable power-down mode, drastically reducing power consumption between conversion cycles—a vital attribute for portable or battery-operated devices.

Communication with a host controller is streamlined through a high-speed **serial interface (SPI/QSPI/MICROWIRE/DSP compatible)**, which facilitates easy connection to modern microcontrollers and digital signal processors (DSPs). The serial interface supports daisy-chaining multiple ADCs, further simplifying the design of systems with expansive channel requirements.

The device is offered in a compact **32-lead LFCSP (Lead Frame Chip Scale Package)**, which is ideal for space-constrained applications while also providing excellent thermal performance. The **AD7490BCPZ-REEL7** is specified over the industrial temperature range (-40°C to +85°C), ensuring robust operation in harsh environmental conditions.

**ICGOOFind Summary**: The AD7490BCPZ-REEL7 is a highly integrated, high-performance 16-channel ADC that combines speed, accuracy, and multi-channel capability in a single package. Its robust design and flexible features make it an indispensable component for engineers developing advanced data acquisition systems across industrial, medical, and communications fields.

**Keywords**: **16-Channel Multiplexer**, **1 MSPS Throughput**, **SAR Architecture**, **SPI Interface**, **Low Power Operation**