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AD7790BRM

AD7790BRM Description

The AD7790BRM is a 16-bit sigma-delta analog-to-digital converter (ADC) from Analog Devices Inc., designed for precision measurement applications. It features a single-channel differential input, SPI/DSP-compatible data interface, and operates with analog/digital supply voltages ranging from 2.5V to 5.25V. With a sampling rate of 120 samples per second (SPS), it delivers high-resolution performance for low-frequency signals. The device includes a programmable gain amplifier (PGA) for signal conditioning and supports an external voltage reference, enhancing flexibility in system design. Packaged in a 10-pin MSOP, it is optimized for space-constrained applications.

AD7790BRM Features

• 16-bit resolution for high-precision data acquisition.
• Differential input with PGA for improved noise rejection and signal integrity.
• SPI/DSP interface for seamless integration with microcontrollers and processors.
• Wide supply range (2.5V–5.25V) for compatibility with various power sources.
• Low-power operation suitable for battery-powered systems.
• External reference support for enhanced accuracy and design flexibility.
• Surface-mount MSOP package for compact PCB layouts.

AD7790BRM Applications

The AD7790BRM excels in applications requiring high-resolution, low-speed signal conversion, such as:

• Industrial sensors (strain gauges, RTDs, pressure transducers).
• Medical instrumentation (patient monitoring, portable diagnostics).
• Process control systems (temperature, pressure, and flow measurement).
• Battery-powered devices due to its low-power operation.
• Automotive sensing (fuel level, torque sensing).

Conclusion of AD7790BRM

The AD7790BRM is a robust, high-precision ADC ideal for applications demanding low noise, high resolution, and flexible signal conditioning. Its PGA, differential input, and SPI interface make it superior to basic ADCs in accuracy-critical designs. While now obsolete, its performance remains relevant for legacy systems or replacements. Engineers should consider modern alternatives from Analog Devices for new designs, but the AD7790BRM remains a reliable choice for existing implementations.