MCP48FVB22T-E/UNVAO

Digital To Analog Converters Overview

The MCP48FVB22T-E/UNVAO is a dual-channel, 12-bit volatile Digital-to-Analog Converter (DAC) manufactured by Microchip Technology. It features an SPI serial interface and operates within a supply voltage range of 1.8V to 5.5V. The device provides rail-to-rail buffered voltage outputs with a typical settling time of 7.8 µs. It supports multiple reference sources including VDD, external VREF, or an internal band gap. Power consumption is low, drawing less than 380 µA in normal operation and approximately 650 nA in power-down mode. The component is housed in a 10-lead MSOP package and is qualified for automotive applications under AEC-Q100 standards.

Digital To Analog Converters Feature Summary

• Dual-channel architecture providing independent 12-bit resolution for two separate analog outputs.
• Integrated voltage output buffers capable of rail-to-rail swing across the operating supply range.
• Flexible reference input options allowing selection between device supply, external pin, or internal band gap.
• Low-power design with configurable power-down modes that disconnect the output buffer.

Digital To Analog Converters Applications

• Set point or offset trimming in industrial control systems
• Sensor calibration circuits requiring precise voltage adjustment
• Motor control applications needing fast response times
• Portable instrumentation powered by low-voltage batteries

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'VAO' against official Microchip documentation to confirm if it denotes a valid automotive-grade variant or specific packaging configuration distinct from the standard 'E/UN'. Ensure the datasheet DS20005466A covers this exact part number before finalizing procurement specifications.

Digital To Analog Converters Selection Notes

Select this component when a dual-channel solution is required without nonvolatile memory storage needs. The volatile RAM architecture suits applications where power loss does not require state retention. Compare against the MCP48FEB22 series if EEPROM persistence is necessary instead of volatile storage.

Digital To Analog Converters Part Context

This device belongs to the MCP48FVBXX family of single and dual-channel DACs. It shares the same core architecture as the MCP48FVB22-E/UN but includes specific suffixes indicating manufacturing or compliance variations. The family offers 8, 10, and 12-bit resolutions with SPI interfaces.

Digital To Analog Converters FAQ

What is the maximum SPI clock frequency for write operations?

Write commands are supported up to 20 MHz.

How does the device handle power-down states?

Power-down modes disconnect the output buffer into a high-impedance state and allow selection of VOUT pull-down resistors of 100 kΩ or 1 kΩ.

Can the gain be adjusted when using an external reference?

Yes, the output buffer gain can be set to unity (1x) or 2x when using the external VREF pin.