Microchip Technology MCP48CVB11-E/UN

Overview

MCP48CVB11-E/UN from Microchip Technology is a single-channel, 10-bit volatile-memory voltage-output DAC with SPI interface, 1 LSb integral nonlinearity (INL), ±0.25 LSb differential nonlinearity (DNL), and operation from 2.7V to 5.5V. It supports internal band gap (1.214 V), VDD, or external VREF as reference source and delivers buffered analog output for precision trimming in sensor calibration systems.

For engineers reviewing the MCP48CVB11-E/UN datasheet, MCP48CVB11-E/UN pinout, MCP48CVB11-E/UN application, or MCP48CVB11-E/UN equivalent, key selection considerations include its 10-bit resolution with guaranteed monotonicity, 16 µs settling time, SPI write speed up to 50 MHz, and extended temperature range (–40°C to +125°C) for industrial embedded control.

Technical Context

The MCP48CVB11-E/UN implements a resistor ladder architecture with buffered op-amp output, supporting gain options of 1x or 2x when using external VREF. Its SPI interface operates in modes '00' and '11', with dedicated LAT/HVC pin enabling high-voltage programming for configuration lock via WiperLock™ technology.

Power management includes three power-down modes (high-Z output with optional 100 kΩ or 1 kΩ pull-down), POR/BOR circuitry ensuring reliable reset at VPOR ≤ 1.75 V and VBOR ≤ 1.61 V, and ultra-low quiescent current (0.56 µA typical in PD mode). The device uses volatile RAM only-no MTP memory-making it suitable for dynamic real-time DAC updates without write-cycle limitations.

Key Specifications

Pinout & Package

Package: 10-lead MSOP or 10-lead 3×3 DFN (exposed pad). Both packages share identical pin mapping and thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCP48FVB11-E/UN and AD5621BRMZ-REEL7, the MCP48CVB11-E/UN delivers optimal balance of industrial-grade reliability (–40°C to +125°C), configurable reference flexibility, and hardware-level write protection-without premium speed or integrated reference overhead.

Availability

MCP48CVB11-E/UN is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable offset trimming, and low-power portable instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MCP48CVB11-E/UN 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 leading provider of microcontrollers, analog devices, and connectivity solutions, serving industrial, automotive, and consumer markets with high-reliability silicon and development tools.

The MCP48CXBXX family was designed specifically for precision analog control in resource-constrained embedded systems, emphasizing low power, SPI simplicity, and robust operation across extreme temperatures without external support components.

FAQ

What is the maximum SPI clock frequency supported by the MCP48CVB11-E/UN?

The MCP48CVB11-E/UN supports SPI write operations up to 50 MHz and read operations up to 25 MHz under full-spec conditions (VDD = 2.7–5.5 V). At reduced supply (1.8–2.7 V), maximum SPI frequency drops to 10 MHz. These speeds are validated across the full –40°C to +125°C temperature range and enable high-throughput DAC updates in real-time control applications.

Does the MCP48CVB11-E/UN include nonvolatile memory for storing DAC output values after power cycle?

No, the MCP48CVB11-E/UN uses volatile RAM only-its DAC register resets to factory default (1FFh) on power-up. It does not contain MTP memory. For persistent output settings, external microcontroller firmware must reinitialize the DAC register after each POR/BOR event. This design prioritizes unlimited write endurance and fast dynamic updates over power-loss retention.

Can the MCP48CVB11-E/UN operate with a 1.8 V supply voltage?

The MCP48CVB11-E/UN supports 1.8 V to 2.7 V operation, but only with reduced analog specifications-including degraded INL/DNL, slower settling time, and limited reference options. Full electrical performance (e.g., ±0.25 LSb DNL, 16 µs settling) is guaranteed only from 2.7 V to 5.5 V. Use 1.8 V only in low-power standby modes where analog accuracy is secondary.

What is the function of the LAT/HVC pin on the MCP48CVB11-E/UN?

The LAT/HVC pin serves dual roles: as a latch signal to update the DAC output synchronously with host timing, and as a high-voltage input (7.5 V typical) to enable WiperLock™ configuration locking. In normal operation, a rising edge on LAT/HVC commits the loaded DAC code to output; during programming, VIHH ≥ 7.25 V activates MTP write protection for register configuration security.

How does the MCP48CVB11-E/UN handle power-on and brown-out conditions?

The MCP48CVB11-E/UN integrates POR/BOR circuitry that asserts reset until VDD exceeds VPOR (≤1.75 V) and holds output in high-impedance state until tPOR2OD (130 µs for single-channel). During brown-out, output disables within 30 µs when VDD falls below VBOR (≤1.61 V). These features prevent glitchy or undefined analog outputs during unstable supply conditions.