MCP4901-E/P

Digital To Analog Converters Overview

The MCP4901-E/P is a single-channel, 8-bit buffered voltage output Digital-to-Analog Converter (DAC) manufactured by Microchip Technology. It utilizes a resistive string architecture and operates on a single supply voltage ranging from 2.7V to 5.5V. The device features an SPI-compatible serial interface supporting clock frequencies up to 20 MHz. Key electrical specifications include a typical settling time of 4.5 µs, a maximum Integral Non-Linearity (INL) error of ±1 LSB, and a maximum Gain Error of 1% of Full Scale Range (FSR). The output amplifier provides rail-to-rail performance with selectable unity or 2x gain.

Digital To Analog Converters Feature Summary

• Rail-to-Rail Output: The integrated output amplifier allows the analog output voltage to swing close to both the positive supply rail and ground, maximizing dynamic range within the operating voltage limits.
• SPI Interface Compatibility: Supports standard Serial Peripheral Interface communication protocols, enabling direct connection to microcontrollers and digital signal processors for efficient data transfer.
• Programmable Gain Configuration: Users can configure the full-scale output range to be either VREF or 2*VREF through software control, providing flexibility in signal scaling without external components.

Digital To Analog Converters Applications

• Set Point or Offset Trimming
• Precision Selectable Voltage Reference
• Motor Control Feedback Loop

Digital To Analog Converters Procurement Notes

Verify the package marking against the datasheet pinout diagram to confirm the PDIP-8 configuration. Ensure the ordering suffix matches the required temperature grade and RoHS compliance status specified in the manufacturer's catalog. Cross-reference the part number with official Microchip documentation to validate active status and revision history before finalizing procurement orders.

Digital To Analog Converters Selection Notes

Select this component when an 8-bit resolution is sufficient for the application requirements. Consider the external voltage reference input requirement if higher accuracy than internal references is needed. Evaluate the power consumption characteristics against system battery life constraints, noting the shutdown mode capability for low-power applications.

Digital To Analog Converters Part Context

This device belongs to the MCP49x1 family of single-channel DACs, which also includes the 10-bit MCP4911 and 12-bit MCP4921 variants. All members share identical pinouts, interfaces, and functional blocks, differing primarily in resolution and associated linearity specifications. This family is designed for general-purpose analog output generation in industrial and consumer electronics.

Digital To Analog Converters Replacement Considerations

Direct substitutes within the same package and functionality include the MCP4911-E/P and MCP4921-E/P, offering higher resolutions. For dual-channel requirements, consider the MCP4902-E/P. Verify that any replacement maintains the same PDIP-8 package and voltage specifications.