Microchip Technology MCP48CMD01-E/MG

Overview

MCP48CMD01-E/MG from Microchip Technology is a single-channel, 8-bit nonvolatile voltage-output DAC with SPI interface, 1 LSb integral nonlinearity (INL), ±0.5 LSb zero-scale error, and operation from 2.7V to 5.5V. It features MTP memory (32 write cycles), internal 1.214V band gap reference, and 4 µs typical settling time - used for precision sensor calibration and set-point trimming in industrial control modules.

For engineers reviewing the MCP48CMD01-E/MG datasheet, MCP48CMD01-E/MG pinout, MCP48CMD01-E/MG application, or MCP48CMD01-E/MG equivalent, key selection criteria include its 8-bit resolution with guaranteed monotonicity, nonvolatile power-up output retention, SPI clock support up to 50 MHz, and extended temperature range (–40°C to +125°C) for harsh-environment embedded systems.

Technical Context

The MCP48CMD01-E/MG implements a resistor ladder architecture with buffered voltage output and supports three reference sources: VDD, external VREF (buffered/unbuffered), or internal band gap (1.214V). Its SPI interface operates in '00' and '11' modes with 50 MHz write speed and 25 MHz read speed.

Power management includes programmable power-down modes (high-Z output with selectable 100 kΩ or 1 kΩ pull-down), POR/BOR protection, and WiperLock™ technology to prevent unintended register changes. The LAT/HVC pin enables high-voltage MTP programming at 7.5V nominal.

Key Specifications

Pinout & Package

Package: 10-lead MSOP (3 × 3 mm), exposed pad (EP) optional per JEDEC MO-187 variant. Pin functions validated per DS20006667A-page 2 block diagram and page 4 package mapping.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit nonvolatile DAC applications.

Compared with MCP48FVD01-E/MG, the MCP48CMD01-E/MG adds nonvolatile retention without sacrificing speed or accuracy; versus AD5620BRMZ-1, it trades resolution for integrated reference and lower system-level design effort.

Availability

MCP48CMD01-E/MG is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive ECU subsystems, and medical instrumentation requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for MCP48CMD01-E/MG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and interface ICs, with broad industrial and automotive qualification programs.

The MCP48CXDX family delivers precision, nonvolatile DACs optimized for embedded calibration, trimming, and analog control - designed to replace potentiometers and reduce system-level calibration labor.

FAQ

What is the maximum SPI clock frequency supported by the MCP48CMD01-E/MG?

The MCP48CMD01-E/MG supports SPI write operations up to 50 MHz and read operations up to 25 MHz. This allows rapid configuration and register read-back in real-time control loops. The device complies with standard SPI '00' and '11' mode timing, and all timing parameters are specified across the full –40°C to +125°C temperature range. The MCP48CMD01-E/MG maintains reliable communication even at the upper limit when VDD ≥ 2.7V and proper signal integrity is maintained.

Does the MCP48CMD01-E/MG require an external reference voltage?

No, the MCP48CMD01-E/MG does not require an external reference voltage. It integrates a 1.214V (typical) internal band gap reference, and also supports using VDD or an external VREF pin as the reference source. When using the internal band gap, the VREF pin can be left unconnected or tied to VSS. The MCP48CMD01-E/MG automatically selects the active reference based on configuration bits, and gain options (1x or 2x) are available when VREF is externally supplied.

How many times can the nonvolatile memory of the MCP48CMD01-E/MG be programmed?

The MCP48CMD01-E/MG provides 32 guaranteed write cycles per MTP memory location. This applies to all 8 general-purpose MTP locations, as well as the power-up output and configuration registers. After the 32nd write, further attempts are ignored and the stored value remains unchanged. Programming requires applying 7.5V (±0.25V) to the LAT/HVC pin and issuing the correct command sequence. The MCP48CMD01-E/MG retains data for 10 years at +85°C per specification.

What is the output settling time of the MCP48CMD01-E/MG, and under what conditions is it measured?

The MCP48CMD01-E/MG has a typical output settling time of 4 µs, measured within ±1/2 LSb of final value for a major code transition (e.g., 1/4 to 3/4 of full-scale range). This is specified with RL = 2 kΩ and CL = 100 pF, at VDD = 5.5V and TA = +25°C. The settling time remains consistent across the full operating temperature range and supply voltage (2.7–5.5V), making the MCP48CMD01-E/MG suitable for dynamic control applications requiring sub-10 µs response.

Can the MCP48CMD01-E/MG operate from a 1.8V supply?

The MCP48CMD01-E/MG supports 1.8V to 2.7V operation for digital interface functionality only; analog performance (INL, settling time, reference accuracy) is reduced outside the 2.7V–5.5V range. At 1.8V, the SPI interface remains functional, but the internal op amp output drive, reference stability, and DAC linearity are not guaranteed per datasheet specifications. For full analog specification compliance - including ±0.10 LSb INL and 4 µs settling - VDD must be ≥ 2.7V. The MCP48CMD01-E/MG is not rated for 1.8V analog operation.