Microchip Technology MCP48CVD01T-E/MG

Overview

MCP48CVD01T-E/MG from Microchip Technology is a single-channel, 8-bit volatile-memory voltage-output DAC with SPI interface, 1 LSb integral nonlinearity (INL), ±0.5 LSb zero-scale error, and operation across -40°C to +125°C. It supports VDD, external VREF, or internal 1.214 V bandgap reference, selectable 1x/2x output gain, and power-down modes with 100 kΩ or 1 kΩ pull-down resistors - used in precision sensor calibration and set-point trimming circuits.

For engineers reviewing the MCP48CVD01T-E/MG datasheet, MCP48CVD01T-E/MG pinout, MCP48CVD01T-E/MG application, or MCP48CVD01T-E/MG equivalent, key selection criteria include its 4 µs settling time, 270 kHz -3 dB bandwidth, SPI write speed up to 50 MHz, 1.8–5.5 V supply range, and QFN-10 (3 × 3 mm) package with exposed pad for thermal performance.

Technical Context

The MCP48CVD01T-E/MG implements a resistor ladder architecture with buffered voltage output and WiperLock™ technology to prevent unintended register changes. Its SPI interface operates in Mode 00 and Mode 11, supporting full-duplex writes at 50 MHz and reads at 25 MHz, with dedicated LAT/HVC pin enabling MTP programming when paired with compatible variants.

Reference selection is configurable via VRxB:VRxA bits: VDD (mode 10), internal bandgap (mode 01), or external VREF (modes 00/11). Gain is fixed at 1x when using VDD as reference; 2x gain is enabled only with external VREF ≤ VDD/2. Power-on/brown-out reset ensures deterministic startup with 130 µs delay to output-driven state.

Key Specifications

Pinout & Package

Package: 10-lead 3 × 3 mm DFN (MCP48CVD01T-E/MG) with exposed thermal pad (EP). Pin-compatible with MSOP-10 and QFN-16 variants in single-channel configuration.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCP48FVB01-E/MN, MCP48CVD01T-E/MG offers superior thermal performance via its exposed pad; compared with MCP4725A0T-E/CH, it delivers faster update rates, deterministic latency, and hardware register protection - essential for real-time analog control loops.

Availability

MCP48CVD01T-E/MG is available at Aetrix Electronics and suitable for sensor calibration, set-point trimming, and low-power portable instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for MCP48CVD01T-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 global semiconductor company specializing in microcontrollers, analog devices, and connectivity solutions, with design centers and manufacturing operations across the Americas, Europe, and Asia.

The MCP48CXDX family was developed for high-accuracy, low-power analog output in industrial and automotive systems - emphasizing robust SPI communication, wide temperature operation, and flexible reference architecture.

FAQ

What is the maximum SPI clock frequency supported by the MCP48CVD01T-E/MG?

The MCP48CVD01T-E/MG supports SPI write operations up to 50 MHz and read operations up to 25 MHz. This allows rapid DAC updates in time-critical applications such as closed-loop motor control or real-time sensor compensation. The device complies with SPI Mode 00 and Mode 11 timing requirements, and all timing parameters are specified across the full -40°C to +125°C operating range. The MCP48CVD01T-E/MG maintains reliable communication even at the upper limit of its 50 MHz specification when proper PCB layout practices - including controlled impedance traces and local decoupling - are followed.

Does the MCP48CVD01T-E/MG include nonvolatile memory?

No, the MCP48CVD01T-E/MG uses volatile memory only - meaning DAC output resets to its power-on default value (0x7F for 8-bit) each time VDD is cycled. This behavior is intentional for applications requiring known-startup conditions, such as safety-critical biasing or factory calibration sequences. Nonvolatile variants (e.g., MCP48CMD01) exist in the same family but use MTP memory with 32-program-cycle endurance and require 7.5 V on the LAT/HVC pin for writes. The MCP48CVD01T-E/MG retains WiperLock™ register protection despite lacking NVM.

What reference voltage options does the MCP48CVD01T-E/MG support?

The MCP48CVD01T-E/MG supports three reference sources: the device's VDD supply (mode 10), an external voltage applied to the VREF pin (modes 00 or 11), or the internal 1.214 V bandgap (mode 01). When using VDD, gain is fixed at 1x; 2x gain is available only with external VREF ≤ VDD/2. The internal bandgap offers ±18 ppm/°C stability and eliminates external component cost. All options are selected via VRxB:VRxA bits in the configuration register, and the MCP48CVD01T-E/MG maintains specified INL and settling performance across all modes.

How does the power-down mode function on the MCP48CVD01T-E/MG?

The MCP48CVD01T-E/MG offers two programmable power-down configurations: disconnecting the output buffer (high-Z state) with either a 100 kΩ or 1 kΩ pull-down resistor to VSS. Current consumption drops to 0.5–2.4 µA in this mode, making it suitable for battery-backed systems. The output remains stable during entry/exit, and the DAC register retains its last value. Power-down is controlled via PDxB:PDxA bits, and the MCP48CVD01T-E/MG resumes normal operation within 130 µs after exit - matching its POR delay. No external components are required to activate this feature.

Is the MCP48CVD01T-E/MG pin-compatible with other packages in the MCP48CXDX family?

Yes - the MCP48CVD01T-E/MG in 10-lead DFN (3 × 3 mm) shares identical pin functions and signal assignments with the MSOP-10 and QFN-16 variants of the same single-channel 8-bit volatile DAC. The DFN and MSOP packages have identical pinouts; the QFN-16 adds NC pins and relocates EP to pin 17, but VDD, VSS, VOUT, VREF, CS, SCK, SDI, SDO, and LAT/HVC retain consistent numbering and roles. This enables drop-in replacement across form factors when thermal or layout constraints change - provided the exposed pad of the DFN is properly connected per Microchip's layout guidelines for the MCP48CVD01T-E/MG.