Microchip 24 bit Delta Sigma Analogue to Digital Converter 153.6 ksps 20-Pin SOP MCP3561-E/ST

Microchip MCP3561-E/ST is a high precision 24-bit delta sigma analogue to digital converter (ADC) designed for demanding industrial and instrumentation applications. This ADC offers a programmable data rate up to 153.6 ksps and incorporates integrated features such as an internal oscillator, temperature sensor, and burnout sensor detection, which significantly reduces system component count and overall solution cost.

The device supports configurable oversampling ratio from 32 to 98304 and a programmable gain amplifier with range from 0.33x to 64x, allowing flexible adaptation to various signal levels. It features an internal sequencer with SCAN mode and 24-bit timer to automatically sequence conversion loops without requiring continuous MCU communication, streamlining embedded system design.

With low noise performance at 90 nVRMS and an effective number of bits (ENOB) up to 23.3, the MCP3561-E/ST delivers highly accurate and stable digitization of analog signals. The ADC operates over a wide input voltage range from 0 V to AVDD and supports a 20 MHz SPI-compatible serial interface for fast and reliable data communication.

The device maintains operation over an extended temperature range from -40°C to +125°C, making it suitable for automotive and industrial environments. Additional security features such as cyclic redundancy check (CRC) and register map locking ensure integrity and security of configuration and communication data, vital for secure environments.

Encapsulated in a compact 20-pin SOP surface mount package with dimensions length 6.5 mm and height 1 mm, the MCP3561-E/ST optimizes PCB space requirements. It is RoHS compliant, meeting environmental regulations.

Typical applications include industrial instrumentation, data acquisition systems, sensor signal processing, and embedded systems requiring precise and reliable ADC performance. This device combines advanced features for low noise, high resolution, programmable gain, and secure communication in a compact footprint.

Operates with a low noise level of 90 nVRMS for precise analog signal conversion. Supports programmable gain from 0.33x to 64x for flexible input range adjustment. Built-in internal oscillator and temperature sensor reduce external component count.

Includes an internal sequencer with SCAN mode enabling multi-channel monitoring without MCU intervention. Specified for operating temperature range from -40°C to 125°C ensuring reliability in harsh environments. Features 20 MHz SPI-compatible serial interface for high-speed communication.

Low power consumption with ultra low full shutdown current improves efficiency. Includes CRC and register map locking for enhanced configuration security. Compact 20-pin SOP package with surface mount design facilitates PCB integration.

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