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Microchip Technology MCP48CMB02-E/UN
- Part No.:
- MCP48CMB02-E/UN
- Manufacturer:
- Microchip Technology
- Category:
- Digital to Analog Converters (DAC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MCP48CMB02-E/UN.pdf
- Description:
- IC DAC 8BIT 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,684
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Product details
Overview
MCP48CMB02-E/UN from Microchip Technology is a dual-channel, 8-bit buffered voltage-output DAC with nonvolatile MTP memory (32 write cycles), SPI interface (50 MHz write), and selectable reference sources (VDD, external VREF, or internal 1.214 V bandgap). It operates from 2.7V to 5.5V across –40°C to +125°C and delivers ±0.10 LSb INL, 16 µs settling time, and 100 kΩ/1 kΩ programmable output pull-down in power-down mode - used for precision sensor calibration and set-point trimming in industrial control systems.
For engineers reviewing the MCP48CMB02-E/UN datasheet, MCP48CMB02-E/UN pinout, MCP48CMB02-E/UN application, or MCP48CMB02-E/UN equivalent, key selection criteria include dual 8-bit resolution with MTP retention, QFN-16 package compatibility, SPI mode '00'/'11' support, 1 LSb INL performance, and high-temperature operation up to +125°C in embedded instrumentation and automotive subsystems.
Technical Context
The MCP48CMB02-E/UN implements a resistor ladder architecture with two independent buffered voltage outputs (VOUT0/VOUT1), each driven by its own op-amp and configurable gain (1x or 2x when not using VDD as reference). Its nonvolatile memory stores power-up values, configuration registers, and general-purpose data, programmed via 7.5 V on the LAT/HVC pin.
It supports four-wire SPI communication with separate CS, SCK, SDI, and SDO lines, enabling simultaneous dual-DAC updates via LAT0/LAT1 control (or shared LAT/HVC in QFN-16). Power-on/brown-out reset ensures deterministic startup, while programmable power-down modes disconnect the output buffer and select 100 kΩ or 1 kΩ pull-down resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit (256 steps) - defines minimum analog step size and digital control granularity for coarse-to-mid precision applications. |
| INL | ±0.10 LSb - guarantees monotonicity and linearity error within one least-significant bit over full scale, critical for closed-loop feedback accuracy. |
| Settling Time | 16 µs - time to settle within ±0.5 LSb after major code transition (e.g., 40h → C0h), enabling ~62.5 kHz update rate in real-time control loops. |
| Reference Options | VDD, external VREF (buffered/unbuffered), or internal 1.214 V bandgap - allows flexible system-level voltage scaling without external references. |
| Operating Voltage | 2.7V to 5.5V - supports direct integration with 3.3 V and 5 V logic domains; reduced specs at 1.8–2.7 V enable low-power wake-up modes. |
| Temperature Range | –40°C to +125°C - qualified for under-hood automotive, industrial motor drives, and harsh-environment sensor interfaces. |
| SPI Speed | 50 MHz write / 25 MHz read - enables fast register updates and dual-DAC synchronization without CPU overhead in high-throughput systems. |
Pinout & Package
Package: 16-lead 3 × 3 mm QFN with exposed pad (EP). Pin functions are validated per DS20006160A-page 1 and page 4 for MCP48CMB02 in QFN-16 configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: VREF | Reference voltage input | Accepts external reference (1.0–VDD V) or connects to internal bandgap; enables 1x/2x gain selection depending on source. |
| 2: CS | Chip select | Active-low SPI slave enable; initiates command decoding and synchronizes SCK edge sensitivity (mode-dependent). |
| 3: VOUT0 | DAC0 analog output | Buffered, rail-to-rail capable voltage output; supports high-impedance disconnect and 100 kΩ/1 kΩ pull-down in power-down. |
| 4: SCK | SPI clock | Master-generated clock up to 50 MHz; determines timing of SDI sampling and SDO output (mode '00' or '11'). |
| 5: LAT/HVC | Latch or high-voltage programming | Drives DAC latch (LAT mode) or supplies 7.5 V for MTP writes (HVC mode); dual-function pin requires voltage-level management. |
| 6: VSS | Ground | Primary analog/digital return path; must be low-impedance and separated from noisy digital ground in mixed-signal layouts. |
| 7: SDI | SPI data input | Serial command/data stream (24-bit frame) including address, data, and control bits for DAC0/DAC1 and configuration registers. |
| 8: VDD | Supply voltage | 2.7–5.5 V main supply powering core logic, reference circuitry, and output amplifiers; decoupling required near pin. |
| 9: VOUT1 | DAC1 analog output | Independent buffered output synchronized with VOUT0; matched tempco (3 ppm/°C) and nominal VOUT match (±0.3%) ensure channel tracking. |
| 10: SDO | SPI data output | Read-back capability for status, configuration, or MTP contents; supports daisy-chaining in multi-device SPI buses. |
| 11–16, EP | No-connect / Exposed pad | Pins 11–16 are NC; EP must be soldered to PCB ground plane for thermal dissipation and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile MTP memory | 32-program-cycle endurance stores power-up DAC values, configuration, and GP data - eliminates boot-time initialization and supports field recalibration. |
| Dual independent outputs | VOUT0/VOUT1 share SPI bus but operate autonomously with matched tempco (3 ppm/°C) and <0.3% nominal VOUT mismatch - ideal for differential or ratiometric signal generation. |
| Selectable reference architecture | VDD, external VREF (1.0–VDD), or internal 1.214 V bandgap - enables system-level flexibility: e.g., VDD-referenced for ratiometric sensors, bandgap for absolute accuracy. |
| Programmable power-down | Three PDx configurations ('01', '10', '11') disconnect output buffer and select 100 kΩ or 1 kΩ pull-down - reduces leakage and noise in standby without external components. |
| High-temp SPI interface | 50 MHz write speed sustained across –40°C to +125°C - supports deterministic, low-latency updates in real-time motor control and closed-loop actuation. |
Applications
| Sensor Calibration | Industrial Set-Point Trimming |
|---|---|
|
Use Scenario: Calibrating offset/gain of pressure, temperature, or current-sense amplifiers in factory test fixtures or field-deployed modules. IC Role / Device Role / Timing Role: Provides stable, nonvolatile trim voltages to amplifier feedback networks or ADC reference paths during production calibration and field re-trim. Use Value: Eliminates manual potentiometers and EEPROM+MCU firmware complexity; retains calibration across power cycles and temperature extremes. |
Use Scenario: Adjusting target thresholds for PID controllers, valve actuators, or power supply margins in PLC I/O modules and motor drives. IC Role / Device Role / Timing Role: Generates precise, software-controlled DC bias or reference voltages that define operational set points in analog control loops. Use Value: Enables remote, dynamic adjustment via SPI without hardware changes; dual outputs support master/slave or differential set-point architectures. |
| Low-Power Portable Instrumentation | PC Peripheral Analog Control |
|
Use Scenario: Battery-powered handheld meters, environmental monitors, or portable medical devices requiring long-term calibration stability and minimal quiescent current. IC Role / Device Role / Timing Role: Supplies low-drift reference voltages to sensor front-ends and ADCs while operating in ultra-low-power sleep states. Use Value: 0.56 µA power-down current and 1.214 V internal bandgap reduce BOM count and extend battery life beyond 5 years in typical use. |
Use Scenario: Audio level control, RGB backlight dimming, or thermal management in desktop peripherals, docking stations, and USB-C accessories. IC Role / Device Role / Timing Role: Delivers smooth, glitch-free analog control signals synchronized to host USB/SPI commands for responsive user interface feedback. Use Value: 10 nV-s major-code glitch energy and 16 µs settling ensure flicker-free dimming and artifact-free audio biasing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel DAC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP48FEB02-E/UN | Volatile RAM-only memory (no MTP); identical pinout, resolution, and SPI interface; lower cost. | Lacks nonvolatile power-up state retention - requires MCU initialization at every boot; unsuitable for standalone calibration storage. | Select when system firmware handles all DAC configuration and no field recalibration is needed. |
| AD5662BRMZ-REEL7 | Analog Devices 16-bit dual DAC; SPI-compatible; no MTP; higher INL (±4 LSB), slower settling (10 µs typical), wider supply (2.7–5.5 V). | Higher resolution but lacks on-chip MTP and integrated power-down pull-down resistors; requires external reference and buffering. | Select when 16-bit precision outweighs nonvolatility needs and board space permits external support components. |
Compared with MCP48FEB02-E/UN, the MCP48CMB02-E/UN adds field-programmable MTP for autonomous power-up behavior; compared with AD5662BRMZ-REEL7, it trades resolution for integrated memory, lower cost, and simpler layout - making it optimal for cost-sensitive, self-contained calibration nodes.
Availability
MCP48CMB02-E/UN is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive cabin control modules, and medical device analog front-ends requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MCP48CMB02-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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and interface ICs, with a focus on reliability, longevity, and embedded system integration.
The MCP48CXBXX family was designed for precision analog control in resource-constrained, high-temperature environments - delivering nonvolatile configurability, SPI efficiency, and robustness for industrial and automotive signal conditioning.
FAQ
What is the maximum SPI clock frequency supported by the MCP48CMB02-E/UN?
The MCP48CMB02-E/UN supports up to 50 MHz for write operations and 25 MHz for read operations across its full operating temperature range (–40°C to +125°C), as specified in DS20006160A-page 18. This enables high-speed register updates and dual-DAC synchronization without CPU bottlenecks in real-time control systems. The MCP48CMB02-E/UN maintains timing compliance even at 1.8–2.7 V supply with reduced 10 MHz SPI speed.
Does the MCP48CMB02-E/UN require an external reference voltage?
No, the MCP48CMB02-E/UN does not require an external reference voltage. It offers three built-in reference options: the device's VDD supply, an external voltage applied to the VREF pin (buffered or unbuffered), or the internal 1.214 V bandgap. This flexibility eliminates external reference ICs in many applications. The MCP48CMB02-E/UN uses the selected reference to generate precise, temperature-stable output voltages with ±0.10 LSb INL.
How many times can the nonvolatile memory of the MCP48CMB02-E/UN be programmed?
The nonvolatile memory (MTP) of the MCP48CMB02-E/UN supports up to 32 write cycles per memory location, as confirmed in DS20006160A-page 4 and page 14. After the 32nd write, further programming attempts are ignored and the last valid value is retained. Each cycle requires 7.5 V on the LAT/HVC pin and takes 250 µs. The MCP48CMB02-E/UN retains data for 10 years at +85°C, ensuring long-term calibration integrity.
What package type is used for the MCP48CMB02-E/UN?
The MCP48CMB02-E/UN is supplied in a 16-lead 3 × 3 mm QFN package with exposed pad (EP), as explicitly stated in DS20006160A-page 4 for "MCP48CMB02 QFN". This compact, thermally enhanced package supports high-density PCB layouts and meets IPC/JEDEC standards for automated assembly. The EP must be soldered to a grounded copper area for optimal thermal performance and EMI suppression in the MCP48CMB02-E/UN design.
Can both DAC channels of the MCP48CMB02-E/UN be updated simultaneously?
Yes, both DAC channels of the MCP48CMB02-E/UN can be updated simultaneously using the LAT0 and LAT1 pins (or shared LAT/HVC in QFN-16 configuration), as shown in DS20006160A-page 3 block diagram and page 4 package mapping. SPI commands include dedicated addressing for DAC0 and DAC1, and latching occurs on the rising edge of LATx. This ensures synchronized output transitions critical for differential signaling or matched control loops in the MCP48CMB02-E/UN application.
MCP48CMB02-E/UN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Number of Bits:
- 8
- Number of D/A Converters:
- 2
- Settling Time:
- 16µs
- Output Type:
- -
- Differential Output:
- No
- Data Interface:
- I2C
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- INL/DNL (LSB):
- ±0.1, ±0.1
- Architecture:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 10-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MCP48CMB02-E/UN FAQ
1.How can I place an order for MCP48CMB02-E/UN through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP48CMB02-E/UN on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MCP48CMB02-E/UN reliable?
The price and inventory of MCP48CMB02-E/UN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP48CMB02-E/UN is usually 5 days.
3.What payment methods are accepted for MCP48CMB02-E/UN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP48CMB02-E/UN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP48CMB02-E/UN?
MCP48CMB02-E/UN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP48CMB02-E/UN order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MCP48CMB02-E/UN?
For technical support, including MCP48CMB02-E/UN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP48CMB02-E/UN requirements.
6.How does Aetrix verify that MCP48CMB02-E/UN is sourced from the original manufacturer or authorized distributors?
All MCP48CMB02-E/UN products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MCP48CMB02-E/UN meets industry standards.
7.What is the process for return or replacement of MCP48CMB02-E/UN?
All MCP48CMB02-E/UN units undergo pre-shipment inspection (PSI). If there is an issue with MCP48CMB02-E/UN, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MCP48CMB02-E/UN part is unused and in its original packaging.
Return procedure for MCP48CMB02-E/UN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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