**AD7680BRJZ-REEL7: A 16-Bit, 250 kSPS PulSAR ADC for Precision Data Acquisition Systems**

In the realm of precision data acquisition, the ability to accurately convert analog signals into digital data is paramount. The **AD7680BRJZ-REEL7** from Analog Devices stands as a pivotal component in systems where high resolution and speed are non-negotiable. This 16-bit, 250 kSPS successive approximation register (SAR) analog-to-digital converter (ADC) is engineered to deliver exceptional performance in a compact package, making it an ideal choice for a wide array of demanding applications.

The core of the AD7680's performance lies in its **PulSAR architecture**, a proprietary implementation of the SAR conversion technique. This design ensures **high accuracy and low power consumption**, achieving a remarkable 16-bit resolution without missing codes. The device operates with a throughput of 250 kilosamples per second (kSPS), providing a critical balance between speed and precision for monitoring dynamic signals. Its **exceptional linearity**, characterized by a typical ±0.4 LSB integral nonlinearity (INL) error, ensures that digital outputs are a faithful representation of the analog input, minimizing distortion in critical measurements.

A significant advantage of the AD7680 is its **ease of integration and system flexibility**. It operates from a single power supply ranging from 2.3 V to 5.5 V, making it compatible with both 3 V and 5 V systems. The serial interface is SPI/QSPI/MICROWIRE/DSP compatible, simplifying communication with a vast majority of modern microcontrollers and digital signal processors (DSPs). Furthermore, the ADC features a versatile input configuration. It can accept true bipolar input ranges (±VREF) when using a dual supply, or a 0 V to VREF unipolar range with a single supply, providing designers with the flexibility to interface with various sensor outputs without additional signal conditioning circuitry.

Power efficiency is a cornerstone of its design, especially for portable and battery-operated instruments. The AD7680 consumes a mere 9.5 mW at 250 kSPS with a 5 V supply and includes a power-down mode that reduces consumption to 1 µW. This **ultra-low power dissipation** is crucial for applications where thermal management and battery life are primary concerns.

The device is offered in the tiny 8-lead SOT-23 and the more common 8-lead MSOP packages. The "REEL7" suffix indicates it is supplied on a 7-inch reel, optimized for automated assembly in high-volume manufacturing. Its robust performance is maintained over the extended industrial temperature range (-40°C to +85°C), ensuring reliability in harsh environments.

Typical applications that benefit from the AD7680's capabilities include:

* **Precision Instrumentation:** Such as benchtop multimeters and spectrum analyzers.

* **Industrial Process Control:** For high-accuracy sensor interfaces in PLCs and distributed control systems.

* **Medical Imaging Equipment:** Where high-resolution data conversion is essential.

* **Battery-Powered Systems:** Including portable medical devices and environmental monitors.

**ICGOODFIND:** The **AD7680BRJZ-REEL7** is a superior 16-bit ADC that masterfully combines **high speed, outstanding accuracy, and remarkable power efficiency**. Its flexible interface and supply options make it a versatile and robust solution for designers aiming to achieve the highest levels of performance in their precision data acquisition systems.

**Keywords:** 16-Bit ADC, PulSAR Architecture, 250 kSPS, Low Power Dissipation, Precision Data Acquisition