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Microchip Technology MCP47FEB21A0T-E/ST
- Part No.:
- MCP47FEB21A0T-E/ST
- Manufacturer:
- Microchip Technology
- Category:
- Digital to Analog Converters (DAC)
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MCP47FEB21A0T-E/ST.pdf
- Description:
- IC DAC 12BIT V-OUT 8TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MCP47FEB21A0T-E/ST from Microchip Technology is a single-channel, 12-bit buffered voltage-output DAC with nonvolatile EEPROM, I²C interface, rail-to-rail output, and selectable reference sources (VDD, external VREF, or internal 1.22 V band gap). It delivers 4096-step resolution, 6 µs typical settling time, and operates from 2.7V to 5.5V across –40°C to +125°C for precision sensor calibration and set-point trimming.
For engineers reviewing the MCP47FEB21A0T-E/ST datasheet, MCP47FEB21A0T-E/ST pinout, MCP47FEB21A0T-E/ST application, or MCP47FEB21A0T-E/ST equivalent, key selection criteria include 12-bit monotonicity, EEPROM-configurable power-on output, gain options (1x/2x), low 180 µA operating current, and TSSOP-8 package compatibility with industrial embedded control systems.
Technical Context
The MCP47FEB21A0T-E/ST implements a resistor ladder architecture with an integrated rail-to-rail output amplifier and programmable gain stage. Its nonvolatile memory stores DAC register value, voltage reference selection (VRxB:VRxA), gain bit (G), power-down mode (PDxB:PDxA), and slave address - all recalled automatically at power-on or brown-out reset.
I²C communication supports Standard (100 kHz), Fast (400 kHz), and High-Speed (up to 3.4 MHz) modes with four fixed slave addresses or full 7-bit user-programmable addressing. The LAT0/HVC pin enables WiperLock™ high-voltage programming for secure configuration writes without requiring external HV supply during normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit (4096 steps); ensures ±0.024% FSR step size for high-precision analog biasing |
| Settling Time | 6 µs typical to ±1/2 LSB; enables fast closed-loop response in motor control feedback paths |
| Output Range | Rail-to-rail (0.01 V to VDD–0.04 V); maximizes dynamic range when powered from 3.3 V or 5 V rails |
| Reference Options | VDD, external VREF (buffered/unbuffered), or internal 1.22 V band gap; allows flexible accuracy vs. power trade-offs |
| Gain Options | 1x or 2x (when VREF used); 2x gain doubles effective resolution when using low-noise external references |
| Supply Current | 180 µA typical (normal), 0.65 µA typical (power-down); supports battery-powered portable instrumentation |
| Operating Temp | –40°C to +125°C; qualified for under-hood automotive and industrial ambient environments |
| I²C Speed | Up to 3.4 Mbps; reduces command latency in high-throughput data acquisition systems |
Pinout & Package
Package: 8-lead TSSOP (3.0 mm × 4.4 mm, 0.65 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT0 | Analog output | Buffered, rail-to-rail DAC output; drives loads ≥5 kΩ with <0.5 LSB INL |
| VREF0 | Reference input | Selectable reference source input; supports buffered (VRxB:VRxA = '11') or unbuffered ('10') modes |
| NC | No connect | Internally unused; must be left floating or tied to GND per layout guidelines |
| SCL | I²C clock | Active-low Schmitt-trigger input; supports 3.4 MHz High-Speed mode with 10 pF pin capacitance |
| LAT0/HVC | Latency / HV control | WiperLock™ enable pin; accepts 12.5 V for secure EEPROM write, or functions as general-purpose LAT in digital mode |
| VSS | Ground | Analog/digital common return; requires low-impedance connection to minimize noise coupling |
| SDA | I²C data | Open-drain bidirectional bus line; supports standard pull-up to VDD or separate I/O rail |
| VDD | Power supply | 2.7–5.5 V analog/digital supply; powers internal band gap, EEPROM, and output amplifier |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile EEPROM | Stores DAC output value, reference/gain/power-down settings, and slave address; auto-recalls on POR/BOR |
| Programmable Power-Down | Three modes: high-Z output with 100 kΩ or 1 kΩ pull-down, or full disconnect; reduces quiescent current to 0.65 µA |
| Internal Band Gap Reference | 1.22 V ±0.04 V with 15 ppm/°C drift; eliminates need for external reference in cost-sensitive applications |
| WiperLock™ Security | High-voltage (≥9 V) activation required to write EEPROM; prevents accidental or malicious reconfiguration |
| I²C Address Flexibility | Four hardware-selectable addresses (via VREF0/VOUT0 pins) or full 7-bit software-programmable address |
| Extended Temperature Range | Specified performance from –40°C to +125°C; validated for automotive engine control and industrial PLC modules |
Applications
| Sensor Calibration | Set Point Trimming |
|---|---|
Use Scenario: Calibrating offset/gain of MEMS pressure sensors in medical infusion pumps. IC Role / Device Role / Timing Role: Provides stable, nonvolatile DC bias voltage to sensor signal conditioning circuitry. Use Value: Eliminates manual potentiometer adjustment; maintains calibration across power cycles and temperature swings. | Use Scenario: Adjusting reference voltage for PID loop set points in HVAC zone controllers. IC Role / Device Role / Timing Role: Generates precise, software-tunable analog set point for comparator or op-amp input. Use Value: Enables remote firmware updates to set points without hardware modification or recalibration. |
| Motor Control Feedback | Low-Power Instrumentation |
Use Scenario: Generating ramped voltage commands for stepper motor current profiling in battery-powered tools. IC Role / Device Role / Timing Role: Delivers smooth, glitch-free analog waveform via I²C-controlled 12-bit steps. Use Value: 6 µs settling and <45 nV·s major-code glitch ensure clean current regulation and reduced acoustic noise. | Use Scenario: Providing programmable bias for ultra-low-power gas sensor front-ends in portable air quality monitors. IC Role / Device Role / Timing Role: Supplies stable reference voltage while consuming only 180 µA during active measurement. Use Value: Extends battery life by >3× versus discrete DAC solutions; EEPROM retains calibration during sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DAC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP47FEB22A0T-E/ST | Dual-channel 12-bit DAC; shares identical specs per channel but adds second independent VOUT1 output | Required when two synchronized analog outputs are needed (e.g., differential drive, dual-sensor bias) | Select MCP47FEB22A0T-E/ST only if dual-channel functionality is mandatory; otherwise MCP47FEB21A0T-E/ST offers lower cost and board space |
| AD5689RBRUZ-RL7 | 16-bit resolution, SPI interface, internal 2.5 V reference; higher precision but no EEPROM auto-recall on power-up | Suited for lab-grade instrumentation where resolution >12-bit is critical and external microcontroller handles initialization | Choose AD5689RBRUZ-RL7 when absolute accuracy and 16-bit granularity outweigh EEPROM convenience and I²C simplicity |
Compared with MCP47FEB22A0T-E/ST, the MCP47FEB21A0T-E/ST saves PCB area and BOM cost in single-output systems; versus AD5689RBRUZ-RL7, it trades 4-bit resolution for guaranteed power-on state retention and simplified two-wire bus integration.
Availability
MCP47FEB21A0T-E/ST is available at Aetrix Electronics and suitable for sensor calibration, set-point trimming, and motor control applications requiring stable component supply, extended temperature operation, and nonvolatile configuration retention.
Supply support for MCP47FEB21A0T-E/ST 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 devices, and Flash-IP solutions, headquartered in Chandler, Arizona.
The MCP47FEBXX family is designed for precision analog output in resource-constrained embedded systems, emphasizing EEPROM-based configuration persistence, wide supply range, and robust I²C interoperability.
FAQ
What is the maximum I²C clock frequency supported by the MCP47FEB21A0T-E/ST?
The MCP47FEB21A0T-E/ST supports I²C High-Speed mode up to 3.4 MHz, enabling rapid DAC register updates in time-critical applications such as waveform generation or closed-loop control. This speed is achievable with proper bus capacitance control (<400 pF) and appropriate pull-up resistor sizing. The device also fully complies with Standard (100 kHz) and Fast (400 kHz) modes for backward compatibility with legacy controllers.
Does the MCP47FEB21A0T-E/ST retain its output setting after power cycling?
Yes, the MCP47FEB21A0T-E/ST retains its DAC output setting, voltage reference selection, gain configuration, and power-down mode in nonvolatile EEPROM. Upon power-on or brown-out reset, the device automatically recalls these values and drives VOUT0 to the stored voltage - eliminating the need for host MCU initialization code to restore analog output state.
Can the internal band gap reference be used with 2x gain on the MCP47FEB21A0T-E/ST?
Yes - when the internal band gap (1.22 V) is selected as the reference source and the gain bit (G) is set to '1', the MCP47FEB21A0T-E/ST applies a total gain of 4×, producing a 4.88 V full-scale output. This configuration is explicitly documented in the device block diagram and electrical characteristics table, and requires no external components beyond standard decoupling.
What is the purpose of the LAT0/HVC pin on the MCP47FEB21A0T-E/ST?
The LAT0/HVC pin on the MCP47FEB21A0T-E/ST serves dual roles: as a latch enable (LAT0) for synchronous digital updates, and as a high-voltage command (HVC) input to activate WiperLock™ security. Applying ≥9 V to this pin enables EEPROM write operations, preventing accidental or unauthorized configuration changes during normal 1.8–5.5 V operation - a key feature for field-deployed industrial systems.
Is the MCP47FEB21A0T-E/ST pin-compatible with other members of the MCP47FEBXX family?
Yes - the MCP47FEB21A0T-E/ST uses the same 8-lead TSSOP package and pinout as all single-channel MCP47FEBX1 variants (e.g., MCP47FEB01, MCP47FEB11). This allows direct substitution within the same resolution class (12-bit) and simplifies design reuse across projects requiring different bit depths without PCB layout changes.
MCP47FEB21A0T-E/ST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Number of Bits:
- 12
- Number of D/A Converters:
- 1
- Settling Time:
- 6µs (Typ)
- Output Type:
- Voltage - Buffered
- Differential Output:
- No
- Data Interface:
- I2C
- Reference Type:
- External, Internal, Supply
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- INL/DNL (LSB):
- ±1.5, ±0.2
- Architecture:
- R-2R
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 8-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MCP47FEB21A0T-E/ST FAQ
1.How can I place an order for MCP47FEB21A0T-E/ST through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP47FEB21A0T-E/ST 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 MCP47FEB21A0T-E/ST reliable?
The price and inventory of MCP47FEB21A0T-E/ST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP47FEB21A0T-E/ST is usually 5 days.
3.What payment methods are accepted for MCP47FEB21A0T-E/ST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP47FEB21A0T-E/ST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP47FEB21A0T-E/ST?
MCP47FEB21A0T-E/ST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP47FEB21A0T-E/ST 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 MCP47FEB21A0T-E/ST?
For technical support, including MCP47FEB21A0T-E/ST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP47FEB21A0T-E/ST requirements.
6.How does Aetrix verify that MCP47FEB21A0T-E/ST is sourced from the original manufacturer or authorized distributors?
All MCP47FEB21A0T-E/ST 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 MCP47FEB21A0T-E/ST meets industry standards.
7.What is the process for return or replacement of MCP47FEB21A0T-E/ST?
All MCP47FEB21A0T-E/ST units undergo pre-shipment inspection (PSI). If there is an issue with MCP47FEB21A0T-E/ST, 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 MCP47FEB21A0T-E/ST part is unused and in its original packaging.
Return procedure for MCP47FEB21A0T-E/ST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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