Microchip MCP4922-E/SL Dual 12-Bit DAC with SPI Interface, SOIC-14

The Microchip MCP4922-E/SL is a dual-channel, 12-bit digital-to-analogue converter (DAC) with a high-speed SPI interface.

Overview

Engineered for precision control in demanding electronic applications, this device operates from a single supply voltage ranging from 2.7 V to 5.5 V, offering flexibility across a range of system designs. Each DAC channel can be shut down independently, either through the active-low SHDN pin or via configuration register bits. In shutdown mode, internal circuits are powered down to minimise current consumption, while the output amplifier presents a known high-impedance load.

Key Features

• Dual 12-bit DAC channels with independent shutdown control
• High-speed SPI interface with a maximum clock frequency of 20 MHz
• Double-buffered input register and LDAC pin for synchronous updates of both DAC outputs
• Power-on Reset (POR) circuit for predictable start-up behaviour
• Rail-to-rail voltage outputs
• Support for an external voltage reference
• Typical settling time of 4.5 µs
• Minimum 10-bit resolution across the full operating temperature range
• Low integral non-linearity (INL) and differential non-linearity (DNL) errors
• Compact 14-pin SOIC package for surface-mount assembly

Applications

The device is suited to a range of industrial and communication systems, including set-point or offset trimming in control systems, use as a precision, digitally selectable voltage reference, motor control and servo feedback loops, digitally controlled multiplier or divider functions, and calibration circuits in optical communication devices.

Dimensions and Weight

Width: 3.3, depth: 1.5, height: 4.3. Weight: 0.351 g.

Choose the Microchip MCP4922-E/SL when you need a dual-channel 12-bit DAC with SPI control, synchronous output updates and independent channel shutdown for precision signal generation.