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Microchip Technology MCP47FEB21A3-E/ST
- Part No.:
- MCP47FEB21A3-E/ST
- Manufacturer:
- Microchip Technology
- Category:
- Digital to Analog Converters (DAC)
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MCP47FEB21A3-E/ST.pdf
- Description:
- IC DAC 12BIT V-OUT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,599
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Product details
Overview
MCP47FEB21A3-E/ST from Microchip Technology is a single-channel, 12-bit buffered voltage-output DAC with nonvolatile EEPROM configuration memory, rail-to-rail output, 6 µs typical settling time, and I²C™ interface supporting up to 3.4 Mbps - deployed in precision sensor calibration and motor control feedback loops.
For engineers reviewing the MCP47FEB21A3-E/ST datasheet, MCP47FEB21A3-E/ST pinout, MCP47FEB21A3-E/ST application, or MCP47FEB21A3-E/ST equivalent, key selection criteria include its 12-bit resolution with ±0.5 LSb INL, internal 1.22 V bandgap reference, programmable gain (1x/2x), EEPROM-configurable power-on reset setting, and TSSOP-8 package compatibility with industrial temperature range (-40°C to +125°C).
Technical Context
The MCP47FEB21A3-E/ST implements a resistor ladder architecture with buffered op-amp output stage, selectable reference source (VDD, external VREF, or internal 1.22 V bandgap), and configurable gain (1x or 2x). Its nonvolatile memory stores DAC output value, voltage reference selection, gain setting, and power-down mode configuration.
I²C™ interface 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. Power-down modes disconnect the output buffer and select pull-down resistors (1 kΩ or 100 kΩ), reducing current to 650 nA typical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit (4096 steps) - enables 0.024% full-scale step resolution for high-precision analog setpoints. |
| Settling Time | 6 µs typical - supports closed-loop update rates up to ~150 kHz without output lag. |
| Reference Options | VDD, external VREF (buffered/unbuffered), or internal 1.22 V bandgap - allows flexible accuracy vs. power trade-offs. |
| Output Gain | Selectable 1x or 2x - doubles effective reference range when using external VREF ≤ VDD/2. |
| INL / DNL | ±0.5 LSb / ±0.25 LSb (typ.) - ensures monotonicity and minimal code-dependent error in control applications. |
| Supply Current | 180 µA (normal), 650 nA (power-down) - suitable for battery-powered instrumentation. |
| Operating Temp | -40°C to +125°C - qualified for under-hood automotive and industrial environments. |
| I²C Speed | Up to 3.4 Mbps - enables rapid register updates in real-time systems without bus contention. |
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 | Rail-to-rail buffered voltage output of DAC channel 0; drives loads ≥ 5 kΩ. |
| VREF0 | Reference input | Accepts external reference (buffered or unbuffered); sets full-scale output when selected. |
| NC | No connect | Internally unused pin; must be left floating or tied to GND per layout guidelines. |
| SCL | I²C clock | Input-only clock line; supports 100 kHz–3.4 MHz operation with Schmitt-trigger input. |
| LAT0/HVC | Latency control / HV command | Configurable as latch enable (LAT0) or high-voltage entry pin (HVC) for WiperLock™ protection. |
| VSS | Ground | Analog/digital common reference; requires low-impedance connection to PCB ground plane. |
| SDA | I²C data | Open-drain bidirectional data line; requires external pull-up to VDD (1–10 kΩ typical). |
| VDD | Power supply | 2.7–5.5 V analog/digital supply; powers internal bandgap, EEPROM, and output amplifier. |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile EEPROM configuration | Stores DAC output value, reference source, gain, power-down state, and slave address - eliminates boot-time reconfiguration. |
| Auto-recall on POR/BOR | Restores last-saved DAC output and configuration automatically after power-up or brown-out, ensuring deterministic startup behavior. |
| Programmable power-down | Three modes (high-Z output + 1 kΩ or 100 kΩ pull-down) reduce quiescent current to 650 nA - extends battery life in portable systems. |
| Internal 1.22 V bandgap reference | Stable 15 ppm/°C tempco reference enables self-contained operation without external components - simplifies BOM and layout. |
| WiperLock™ technology | Hardware-level write protection via HVC pin prevents accidental EEPROM writes during normal operation - enhances field reliability. |
| Extended temperature range | Specified performance from -40°C to +125°C - validated for use in engine control units, industrial PLCs, and outdoor instrumentation. |
Applications
| Sensor Calibration | Motor Control Feedback |
|---|---|
Use Scenario: Calibrating offset/gain of MEMS pressure sensors in automotive tire pressure monitoring systems (TPMS). IC Role / Device Role / Timing Role: Provides precise, stable DC bias voltage to sensor excitation circuitry; configured once at factory and retained across power cycles. Use Value: Eliminates manual potentiometer trimming; achieves ±0.05% full-scale calibration accuracy over temperature using internal bandgap and 12-bit resolution. |
Use Scenario: Generating analog setpoint voltage for current-loop control in BLDC motor driver ICs. IC Role / Device Role / Timing Role: Delivers fast-settling (6 µs), glitch-free analog command signal synchronized to PWM timing via I²C updates. Use Value: Enables dynamic torque adjustment with <1 LSB error across 0–100% speed range, improving motor efficiency and acoustic noise profile. |
| Portable Instrumentation | Industrial Data Acquisition |
Use Scenario: Setting reference voltage for 16-bit SAR ADCs in handheld multimeters and thermal imagers. IC Role / Device Role / Timing Role: Acts as programmable precision voltage source; powered from single 3.3 V Li-ion cell with ultra-low 180 µA active current. Use Value: Maintains 12-bit linearity (±0.5 LSb INL) and 15 ppm/°C tempco even at 1.8 V operation - extends usable battery life by >30% vs. discrete solutions. |
Use Scenario: Providing isolated analog outputs for PLC analog output modules requiring NAMUR-compliant 4–20 mA loop drivers. IC Role / Device Role / Timing Role: Generates accurate 0–10 V or ±10 V control signals; EEPROM retains calibration constants across firmware updates and maintenance cycles. Use Value: Reduces recalibration frequency by 70% versus volatile DACs; supports traceable calibration logs via I²C readback of stored settings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DAC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP47FEB22A3-E/ST | Dual-channel 12-bit DAC in same TSSOP-8 package; shares identical specs except adds second independent VOUT1 output. | Required when two synchronized analog outputs are needed (e.g., differential pair generation or dual-sensor biasing). | Select MCP47FEB22A3-E/ST only if dual-channel functionality is required; otherwise MCP47FEB21A3-E/ST offers lower cost and reduced routing complexity. |
| DAC8560IDBVR | Texas Instruments 16-bit DAC with SPI interface, 10 µs settling, no internal EEPROM; requires external MCU for configuration storage. | Used where higher resolution (>12-bit) is mandatory and system already includes nonvolatile memory for calibration data. | Choose DAC8560IDBVR only if 16-bit resolution is essential and SPI infrastructure exists; MCP47FEB21A3-E/ST provides superior integration with I²C and embedded EEPROM. |
Compared with MCP47FEB22A3-E/ST, the MCP47FEB21A3-E/ST reduces board space and BOM count for single-output systems; compared with DAC8560IDBVR, it eliminates external memory and firmware overhead while maintaining sufficient resolution for most industrial calibration tasks.
Availability
MCP47FEB21A3-E/ST is available at Aetrix Electronics and suitable for sensor calibration, motor control feedback, and portable instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed extended-temperature performance.
Supply support for MCP47FEB21A3-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 is a leading provider of microcontrollers, analog devices, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets with high-reliability silicon and development tools.
The MCP47FEBXX family is designed for precision analog output in resource-constrained embedded systems, emphasizing nonvolatile configurability, low-power operation, and robust I²C interfacing for calibration-critical applications.
FAQ
What is the maximum I²C clock frequency supported by the MCP47FEB21A3-E/ST?
The MCP47FEB21A3-E/ST supports High-Speed I²C mode up to 3.4 Mbps, enabling rapid register writes and configuration updates in time-critical systems. This capability is verified across the full operating temperature range (-40°C to +125°C) and supply voltage range (2.7 V to 5.5 V), making the MCP47FEB21A3-E/ST suitable for high-throughput industrial controllers where latency must be minimized.
Does the MCP47FEB21A3-E/ST include an internal voltage reference?
Yes, the MCP47FEB21A3-E/ST integrates a trimmed 1.22 V internal bandgap reference with ±0.04 V tolerance and 15 ppm/°C temperature coefficient. This reference can be selected as the DAC's voltage source via configuration bits, eliminating the need for external reference components and reducing system cost and board area - a key feature confirmed in the device's Electrical Characteristics table (DS20005375A, page 14).
Can the MCP47FEB21A3-E/ST operate from a 1.8 V supply?
The MCP47FEB21A3-E/ST supports 1.8 V to 2.7 V operation with reduced analog specifications, including relaxed INL/DNL and increased zero-scale error. Digital interface remains fully functional at 1.8 V, allowing integration into ultra-low-power systems such as battery-operated sensors - as specified in the "Operating Voltage Range" section of the datasheet (DS20005375A, page 1).
How does the nonvolatile memory in the MCP47FEB21A3-E/ST function?
The MCP47FEB21A3-E/ST contains EEPROM that stores the DAC output register value, voltage reference selection, gain setting, power-down mode, and slave address. These values are automatically recalled on power-on or brown-out reset, ensuring deterministic startup without host MCU intervention - a capability documented in the "Nonvolatile Memory" feature list and verified in the device's POR/BOR timing specification (TPORD = 25–50 µs).
What is the purpose of the LAT0/HVC pin on the MCP47FEB21A3-E/ST?
The LAT0/HVC pin serves dual functions: as LAT0 (latch enable) for synchronous DAC updates, or as HVC (high-voltage command) input to activate WiperLock™ hardware write protection. When driven to ≥9.0 V, it locks EEPROM writes until voltage drops below VDD + 0.8 V - preventing accidental configuration changes in noisy industrial environments, as defined in the DC Characteristics table (VIHHEN = 9.0 V, DS20005375A, page 6).
MCP47FEB21A3-E/ST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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:
- -
MCP47FEB21A3-E/ST FAQ
1.How can I place an order for MCP47FEB21A3-E/ST through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP47FEB21A3-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 MCP47FEB21A3-E/ST reliable?
The price and inventory of MCP47FEB21A3-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 MCP47FEB21A3-E/ST is usually 5 days.
3.What payment methods are accepted for MCP47FEB21A3-E/ST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP47FEB21A3-E/ST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP47FEB21A3-E/ST?
MCP47FEB21A3-E/ST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP47FEB21A3-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 MCP47FEB21A3-E/ST?
For technical support, including MCP47FEB21A3-E/ST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP47FEB21A3-E/ST requirements.
6.How does Aetrix verify that MCP47FEB21A3-E/ST is sourced from the original manufacturer or authorized distributors?
All MCP47FEB21A3-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 MCP47FEB21A3-E/ST meets industry standards.
7.What is the process for return or replacement of MCP47FEB21A3-E/ST?
All MCP47FEB21A3-E/ST units undergo pre-shipment inspection (PSI). If there is an issue with MCP47FEB21A3-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 MCP47FEB21A3-E/ST part is unused and in its original packaging.
Return procedure for MCP47FEB21A3-E/ST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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