Microchip Technology MCP48CMB01-E/MF

Overview

MCP48CMB01-E/MF from Microchip Technology is a single-channel, 8-bit buffered voltage-output DAC with nonvolatile (MTP) memory, SPI interface, and ±0.1 LSb integral nonlinearity. It operates from 2.7V to 5.5V, supports internal band gap (1.214V), VDD, or external VREF as reference source, and delivers 16 µs settling time. It is used in sensor calibration circuits where power-up output reproducibility and field-programmable trim values are required.

For engineers reviewing the MCP48CMB01-E/MF datasheet, MCP48CMB01-E/MF pinout, MCP48CMB01-E/MF application, or MCP48CMB01-E/MF equivalent, key selection criteria include MTP write endurance (32 cycles), 1 LSb INL performance at extended temperature (–40°C to +125°C), SPI write speed (50 MHz), and dual-reference flexibility (VDD or external VREF with 1x/2x gain).

Technical Context

The MCP48CMB01-E/MF implements a resistor ladder architecture with buffered voltage output and WiperLock™ technology to prevent unintended register changes. Its nonvolatile memory stores power-up DAC codes, configuration registers, and general-purpose data across 8 MTP locations, each writable up to 32 times using 7.5V on the LAT/HVC pin.

It supports four-wire SPI in modes '00' and '11', with separate read (25 MHz) and write (50 MHz) speeds. Reference selection (VDD, external VREF, or internal band gap) and output gain (1x or 2x) are controlled via dedicated configuration bits, and power-down modes offer high-impedance output with selectable pull-down resistors (100 kΩ or 1 kΩ).

Key Specifications

Pinout & Package

Package: 10-lead MSOP or 10-lead 3×3 DFN (exposed pad). Pin count and function mapping match both packages; no QFN-16 variant for single-channel MTP devices per family table.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar DAC applications.

Compared with MCP48CVB01-E/MF, the MCP48CMB01-E/MF adds field-programmable nonvolatile storage without changing footprint or interface timing; versus MCP4725A0T-E/CH, it offers SPI-native operation, tighter INL (±0.1 vs. ±1 LSb), and explicit high-voltage MTP control for secure calibration updates.

Availability

MCP48CMB01-E/MF is available at Aetrix Electronics and suitable for sensor calibration, set point trimming, and low-power portable instrumentation requiring stable component supply across automotive, industrial, and medical device production programs.

Supply support for MCP48CMB01-E/MF 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 Inc. is a leading provider of microcontrollers, analog, and Flash-IP solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.

The MCP48CXBXX family delivers high-accuracy, SPI-compatible DACs with configurable memory and reference options, designed specifically for embedded calibration, closed-loop control, and precision analog output in harsh-environment applications.

FAQ

What is the MTP programming voltage requirement for MCP48CMB01-E/MF?

The MCP48CMB01-E/MF requires 7.25V to 7.75V applied to the LAT/HVC pin to initiate nonvolatile memory writes. This high-voltage command must be limited in duration and returned to ≤5.5V after programming completes. The device draws up to 6.4 mA during MTP write, and each location supports exactly 32 write cycles before locking.

Does MCP48CMB01-E/MF support external reference buffering?

Yes, MCP48CMB01-E/MF supports both buffered and unbuffered external VREF configurations. When VREF is selected as the reference source, the internal buffer can be enabled or disabled via configuration bits. In unbuffered mode, VREF input impedance is ~71 kΩ and input capacitance is 29 pF-designs must ensure source stability under these loading conditions.

What is the guaranteed INL performance of MCP48CMB01-E/MF across temperature?

MCP48CMB01-E/MF guarantees ±0.1 LSb integral nonlinearity over the full –40°C to +125°C operating range when configured with VDD = 2.7–5.5V, VREF = VDD, and G = '0'. This specification is validated by characterization and applies to all production units meeting Microchip's extended temperature qualification standards.

Can MCP48CMB01-E/MF operate from a 1.8V supply?

No, MCP48CMB01-E/MF does not operate from 1.8V alone. Its absolute minimum VDD is 2.7V for full specifications. At 1.8V–2.7V, analog performance degrades (e.g., reduced INL, slower settling), and SPI interface is not guaranteed-this range is explicitly marked "reduced device specifications" in the datasheet and not recommended for production use.

How many general-purpose MTP locations does MCP48CMB01-E/MF provide?

MCP48CMB01-E/MF provides 8 general-purpose nonvolatile memory locations, each 16 bits wide. These locations are distinct from DAC register and configuration storage and can be used for storing calibration coefficients, serial numbers, or device-specific parameters-each location supports 32 independent write cycles with data retention exceeding 10 years at +85°C.