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Microchip MCP4921-E/SN 12-Bit Digital-to-Analogue Converter, SPI, Microwire, SOIC-8, 2.7–5.5V

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Microchip MCP4921-E/SN 12-Bit Digital-to-Analogue Converter, SPI, Microwire, SOIC-8, 2.7 - 5.5V

Name: Microchip MCP4921-E/SN 12-Bit Digital-to-Analogue Converter, SPI, Microwire, SOIC-8, 2.7 - 5.5V
Brand: Microchip
SKU: 86951

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Category Digital to Analogue Converter Brand Microchip Condition New

Specifications

Country of Origin	India
Resolution	12 bit
Brand	Microchip
Height	1.7mm
Length	4.9mm
Model	MCP4921-E/SN
Width	6mm
Mount Type	Surface
Settling Time	4.5μs
Output type	Analogue Voltage
Maximum Operating Temperature	125°C
Package Type	SOIC
Minimum Operating Temperature	-40°C
Number Of Channels	1
Interface Type	SPI, Microwire
Architecture	Resistor String
Pin Count	8
Maximum Supply Voltage	5.5V
Minimum Supply Voltage	2.7V

Key Features

12-bit resolution for accurate digital-to-analogue conversion.
Single-channel output suitable for precise voltage control.
Compatible with SPI and Microwire digital interfaces.
Supports external voltage reference input for stable output.
Operates with supply voltage from 2.7V to 5.5V.
Mounted in compact SOIC-8 surface-mount package.
4.5 microseconds typical settling time for fast output response.
Functions reliably from -40°C to 125°C.

Product Description

The Microchip MCP4921-E/SN is a high-performance, single-channel 12-bit digital-to-analogue converter designed for precision voltage output applications. Housed in a compact 8-pin SOIC package, this converter integrates SPI and Microwire interfaces for easy digital communication with microcontrollers, digital signal processors, or any SPI-enabled devices.

Utilizing a resistor string architecture and supporting an external voltage reference, the MCP4921-E/SN achieves excellent linearity and output accuracy, making it suitable for a wide range of signal conversion and control systems. Its 12-bit resolution permits fine voltage steps, ideal for applications where accurate analogue output is critical, including waveform generation, actuator control, programmable voltage sources, and instrument calibration.

This device features a supply voltage range of 2.7V to 5.5V, accommodating various low-power and standard microcontroller environments. Its typical settling time of 4.5 microseconds supports applications requiring rapid output changes and real-time response. The surface-mount SOIC-8 form factor facilitates space-saving PCB layouts and streamlined manufacturing processes.

The MCP4921-E/SN operates reliably within an extended ambient temperature range of -40°C to 125°C, suitable for demanding industrial, laboratory, and instrumentation environments. It supports integration in feedback loops, control systems, process automation, analogue voltage tuning, and general-purpose DAC requirements where robust operation and small footprint are essential.

Typical use cases for this DAC include signal synthesis, industrial process control, motor control circuits, reference voltage generation, and programmable power supplies. Its SPI and Microwire compatibility ensure simple interfacing for both new designs and legacy system upgrades.

Explore other digital to analogue converter solutions and view the complete Microchip portfolio in the Digital to Analogue Converter category on EnvMart.