High-Performance 16-Bit Precision: A Deep Dive into the AD7988-1BRMZ PulSAR® ADC

Release date:2025-08-30 Number of clicks:55

**High-Performance 16-Bit Precision: A Deep Dive into the AD7988-1BRMZ PulSAR® ADC**

In the realm of data acquisition systems, where the accurate digitization of analog signals is paramount, the choice of an Analog-to-Digital Converter (ADC) is critical. The **AD7988-1BRMZ from Analog Devices** stands as a pinnacle of high-performance, 16-bit precision, embodying the advanced capabilities of the **PulSAR® architecture** to deliver exceptional speed and accuracy in a compact form factor.

At its core, the AD7988-1BRMZ is a 16-bit, 1 MS/s successive approximation register (SAR) ADC. The **PulSAR® technology** is the defining feature that sets it apart. Unlike other ADC architectures, the PulSAR® design utilizes internal charge redistribution and a sophisticated switching algorithm. This results in **inherently low power dissipation** that scales linearly with the sampling rate, a crucial advantage for power-sensitive applications. Despite its high speed of one million samples per second, the device maintains remarkably low power consumption, typically drawing just 13 mW at 1 MS/s.

Precision is where this ADC truly excels. It offers **true 16-bit resolution with no missing codes**, ensuring every bit of the digital output is meaningful and reliable. Key specifications like excellent INL (Integral Non-Linearity) of ±0.4 LSB typ and low noise guarantee that the converted digital data is a faithful representation of the analog input. This level of accuracy is essential in demanding fields such as medical instrumentation, precision industrial control, and high-end automated test equipment.

The device is designed for simplicity and ease of use. It operates from a single 2.5 V to 5.5 V power supply and features a simple serial peripheral interface (SPI)-compatible serial interface. Its small, 10-lead MSOP package makes it suitable for space-constrained PCB designs. Furthermore, the AD7988-1BRMZ includes a powerful, flexible multiplexer-friendly digital interface and can be used with an internal or an external reference, providing system designers with significant flexibility.

A significant challenge in high-resolution data acquisition is managing the interface between the ADC and the system controller, especially at high speeds. The AD7988-1BRMZ addresses this with its **high-speed serial interface**, which minimizes the number of digital lines required, reduces noise pickup, and simplifies layout. This makes it significantly easier to integrate into a system without sacrificing performance.

ICGOO**DFIND**: The AD7988-1BRMZ PulSAR® ADC is a superior solution for designers who will not compromise on performance. It masterfully combines **high speed, exceptional 16-bit accuracy, and remarkably low power consumption** in a robust and easy-to-use package, making it an outstanding choice for the most challenging precision measurement applications.

**Keywords**: 16-Bit Precision, PulSAR® ADC, Low Power Consumption, High-Speed SPI Interface, No Missing Codes.

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