2026/1/27
The MCP4921T-E-MS is a 12-bit single-channel Digital-to-Analog Converter (DAC) from Microchip Technology. It features SPI interface, external reference, and wide operating temperature range, suitable for various precise data acquisition and signal conversion applications.
Category:Integrated Circuits (ICs),Data Acquisition,Digital to Analog Converters (DAC)
Manufacturer:Microchip Technology
Packaging:Tape & Reel
Part Status:Active
Settling Time:4.5µs (Typ)
Output Type:Voltage - Buffered
Data Interface:SPI
Reference Type:External
Voltage - Supply, Analog:2.7V ~ 5.5V
Voltage - Supply, Digital:2.7V ~ 5.5V
INL/DNL (LSB):±4, ±0.25
Operating Temperature:-40°C ~ 125°C
Package / Case:8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type:Surface Mount
High Resolution:Equipped with 12-bit resolution, ensuring precise digital-to-analog conversion and stable analog output for high-accuracy application demands.
High Accuracy:With INL of ±4 LSB and DNL of ±0.25 LSB, it delivers monotonic output, minimizing conversion errors and enhancing signal reliability.
SPI Interface:Adopts SPI communication interface, enabling fast and reliable data transmission, easy integration with microcontrollers (MCUs) and digital systems.
Flexible Power Supply:Analog and digital supply voltages both range from 2.7V to 5.5V, supporting low-voltage operation and battery-powered devices.
Fast Settling:Typical settling time of 4.5µs allows rapid conversion from digital signals to stable analog outputs, improving system response speed.
External Reference:Features external reference type, allowing users to configure reference voltage flexibly based on actual application requirements for more precise control.
Industrial Control:Used in PLC (Programmable Logic Controller) analog output modules to convert digital control signals into analog voltages for valve and motor speed regulation.
Test Equipment:Applied in digital multimeters and signal generators to provide precise analog reference signals for accurate measurement and calibration.
Automotive Electronics:Integrated into automotive sensor signal conditioning circuits to convert digital data into analog signals for engine control units (ECUs).
Portable Devices:Used in battery-powered handheld instruments (such as portable pH meters) due to its low-voltage power supply and compact package.
Audio Systems:Applied in digital audio players and amplifiers to convert digital audio signals into analog signals for high-fidelity sound output.
Medical Instruments:Used in blood glucose meters and heart rate monitors to convert digital measurement data into analog signals for display and processing.
Power Management:Integrated into DC-DC converter control circuits to provide precise analog control signals for voltage regulation and current stabilization.
The MCP4921T-E-MS is a high-performance, cost-effective 12-bit DAC with excellent precision, flexible configuration, and wide adaptability. Its compact package and stable performance make it an ideal choice for various precise digital-to-analog conversion scenarios in industrial, automotive, medical, and consumer electronics fields.