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Microchip Technology MCP47FEB21A2-E/ST
- Part No.:
- MCP47FEB21A2-E/ST
- Manufacturer:
- Microchip Technology
- Category:
- Digital to Analog Converters (DAC)
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MCP47FEB21A2-E/ST.pdf
- Description:
- IC DAC 12BIT V-OUT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,682
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Product details
Overview
MCP47FEB21A2-E/ST from Microchip Technology is a single-channel, 12-bit buffered voltage-output DAC with nonvolatile EEPROM configuration memory and I²C™ interface. It delivers rail-to-rail output with 6 µs typical settling time, 12-bit resolution (4096 steps), and supports VDD, external VREF, or internal 1.22V bandgap as reference source. It is used in precision sensor calibration and low-power portable instrumentation where power-on state retention and stable analog output are required.
For engineers reviewing the MCP47FEB21A2-E/ST datasheet, MCP47FEB21A2-E/ST pinout, MCP47FEB21A2-E/ST application, or MCP47FEB21A2-E/ST equivalent, key selection criteria include its 12-bit monotonicity, ±0.5 LSb INL, EEPROM-configurable POR/BOR output setting, dual gain options (1x/2x), and operation across –40°C to +125°C.
Technical Context
The MCP47FEB21A2-E/ST integrates a resistor ladder DAC core, rail-to-rail output amplifier with selectable 1x or 2x gain, and nonvolatile EEPROM for storing DAC register value, voltage reference selection (VDD/VREF/internal bandgap), gain bit, power-down mode, and slave address. Its I²C interface supports Standard (100 kHz), Fast (400 kHz), and High-Speed (up to 3.4 MHz) modes with four fixed or user-programmable 7-bit addresses.
Power management includes three programmable power-down states (high-Z output with 100 kΩ or 1 kΩ pull-down, or full disconnect), consuming only 650 nA typical in PDxB:PDxA = '01' mode. The internal bandgap reference (1.22V ±0.04V) enables self-contained operation without external components, while the LAT0/HVC pin supports WiperLock™ high-voltage programming protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit (4096 steps); ensures 0.024% full-scale step size for high-precision analog control |
| Settling Time | 6 µs typical to ±1/2 LSb; enables fast update rates in closed-loop systems and real-time trimming |
| INL / DNL | ±0.5 LSb / ±0.25 LSb max; guarantees monotonicity and linearity critical for calibration accuracy |
| Reference Options | VDD, external VREF (buffered/unbuffered), or internal 1.22V bandgap; eliminates need for external reference IC |
| Output Drive | Rail-to-rail, ±20 mA max sink/source; directly drives resistive loads or op-amp inputs without buffering |
| EEPROM Endurance | 1 million write cycles; supports field reconfiguration of power-on state and device settings over product lifetime |
| Operating Temp | –40°C to +125°C; qualified for automotive under-hood, industrial motor control, and harsh-environment applications |
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 voltage output driven by DAC core; connects directly to load or feedback node |
| VREF0 | Reference input | Selectable reference source input; accepts VDD, external reference, or internal bandgap (when enabled) |
| NC | No connect | Internally unused pin; must be left floating or tied to GND per layout guidelines |
| SCL | I²C clock | Open-drain input synchronized with SDA; supports up to 3.4 MHz High-Speed mode |
| LAT0/HVC | Latency / HV control | Configures latch timing or enables WiperLock™ high-voltage programming (VIHH ≥ 9.0 V) |
| VSS | Ground | Analog and digital common reference; requires low-impedance connection to system GND plane |
| SDA | I²C data | Open-drain bidirectional data line; shares bus with other I²C peripherals using arbitration |
| VDD | Supply voltage | 2.7V–5.5V analog/digital supply; powers DAC core, amplifier, EEPROM, and I²C interface |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile configuration memory | EEPROM stores DAC output value, VREF selection, gain, power-down mode, and slave address - survives power cycles |
| Auto-recall on POR/BOR | Restores last-saved DAC output and configuration automatically at power-up or brown-out recovery |
| Selectable output gain | 1x or 2x gain (when VREF pin used); doubles effective resolution range without changing reference voltage |
| Low-power power-down modes | 650 nA typical current in high-Z mode; reduces system standby power in battery-operated devices |
| WiperLock™ technology | HVC pin enables secure, high-voltage-protected EEPROM writes - prevents accidental overwrites during normal operation |
| Extended temperature range | Specified from –40°C to +125°C; validated for use in automotive engine control units and industrial PLC modules |
Applications
| Sensor Calibration | Motor Control Feedback |
|---|---|
Use Scenario: Adjusting offset/gain of analog sensor outputs (e.g., pressure, temperature, current sense) during factory trim or field recalibration. IC Role / Device Role / Timing Role: Precision 12-bit voltage source generating calibrated bias or correction voltage for sensor signal conditioning circuitry. Use Value: Eliminates manual potentiometers; enables automated, repeatable calibration via I²C with permanent storage of trim values in EEPROM. |
Use Scenario: Providing programmable reference voltage to motor driver ICs or op-amps controlling PWM duty cycle or current loop setpoints. IC Role / Device Role / Timing Role: Stable, low-drift analog setpoint generator interfaced to microcontroller over I²C for dynamic speed/torque adjustment. Use Value: Achieves <0.5 LSb INL and 15 ppm/°C VOUT tempco - maintains motor control accuracy across wide ambient temperature swings. |
| PC Peripheral Power Management | Low-Power Portable Instrumentation |
Use Scenario: Generating precise voltage thresholds for USB-C power delivery negotiation, fan speed control, or VRM margining in desktop/laptop platforms. IC Role / Device Role / Timing Role: I²C-configurable voltage reference with auto-recall, ensuring consistent power sequencing behavior after cold boot or reset. Use Value: 6 µs settling time and rail-to-rail output allow rapid response to dynamic power state transitions without external amplification. |
Use Scenario: Setting reference voltages for handheld multimeters, gas detectors, or portable medical monitors requiring long battery life and calibration stability. IC Role / Device Role / Timing Role: Ultra-low-power 12-bit DAC operating from 2.7V supply, delivering calibrated analog outputs with <180 µA active current. Use Value: 650 nA power-down current and EEPROM-retained settings extend battery runtime while preserving calibration integrity between measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DAC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP47FEB22A2-E/ST | Dual-channel 12-bit DAC in same TSSOP-8 package; shares identical specs but adds second independent VOUT1 output | Required when two synchronized or independent analog outputs are needed (e.g., differential pair generation, dual-sensor bias) | Select MCP47FEB22A2-E/ST only if dual-channel functionality is required; pinout differs (VOUT1 replaces NC), not drop-in compatible |
| AD5689RBRUZ-RL7 | 16-bit, dual-channel, SPI interface, internal 2.5V reference; higher resolution but no EEPROM, larger 16-lead TSSOP package | Better suited for high-accuracy lab equipment where SPI bandwidth and 16-bit resolution outweigh EEPROM convenience | Choose AD5689RBRUZ-RL7 when resolution >12-bit is mandatory and I²C is not required; requires PCB redesign and firmware change |
Compared with MCP47FEB22A2-E/ST, the MCP47FEB21A2-E/ST saves board space and cost for single-output systems; compared with AD5689RBRUZ-RL7, it offers EEPROM-based state retention and I²C simplicity at the expense of resolution and channel count.
Availability
MCP47FEB21A2-E/ST is available at Aetrix Electronics and suitable for sensor calibration, motor control feedback, and low-power portable instrumentation requiring stable component supply, extended temperature operation, and nonvolatile configuration retention.
Supply support for MCP47FEB21A2-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, FPGAs, and connectivity solutions, headquartered in Chandler, Arizona.
The MCP47FEBXX family is designed for precision analog output applications demanding EEPROM-configurable power-on behavior, rail-to-rail performance, and robust I²C communication in industrial and automotive environments.
FAQ
What is the maximum I²C clock frequency supported by the MCP47FEB21A2-E/ST?
The MCP47FEB21A2-E/ST supports High-Speed I²C mode up to 3.4 MHz, in addition to Standard (100 kHz) and Fast (400 kHz) modes. This allows rapid DAC register updates in time-critical applications such as real-time control loops. The device meets I²C specification timing requirements across its full operating voltage (2.7V–5.5V) and temperature (–40°C to +125°C) range, and the MCP47FEB21A2-E/ST's SDA/SCL pins feature 10 pF pin capacitance and Schmitt-trigger inputs for noise immunity.
Does the MCP47FEB21A2-E/ST require an external reference voltage?
No, the MCP47FEB21A2-E/ST does not require an external reference voltage. It supports three internal reference options: the device VDD supply, an internal 1.22V bandgap (1.18V–1.26V), or an external voltage applied to the VREF0 pin. When using the internal bandgap, the output amplifier applies 2x gain by default, yielding a 2.44V full-scale range. The MCP47FEB21A2-E/ST's flexibility eliminates BOM cost and board space for external references in many applications.
How does the nonvolatile memory in the MCP47FEB21A2-E/ST function during power-up?
The MCP47FEB21A2-E/ST automatically recalls the last-saved DAC output value and configuration bits (VREF source, gain, power-down mode) from EEPROM upon power-on reset (POR) or brown-out reset (BOR). This auto-recall occurs within 50 µs after VDD exceeds 1.7V, ensuring predictable analog output without host MCU intervention. The MCP47FEB21A2-E/ST's EEPROM retains data for 200 years at +25°C and withstands 1 million write cycles, enabling reliable field recalibration.
What are the power-down current specifications for the MCP47FEB21A2-E/ST?
The MCP47FEB21A2-E/ST achieves 650 nA typical current in its lowest power-down mode (PDxB:PDxA = '01'), where the output buffer is disconnected and a 100 kΩ pull-down resistor engages. Two additional modes offer 1 kΩ pull-down or full high-impedance disconnect, all drawing ≤3.8 µA. In active mode, supply current is <180 µA (single-channel), making the MCP47FEB21A2-E/ST ideal for battery-powered instrumentation requiring long operational life.
Can the MCP47FEB21A2-E/ST generate a true rail-to-rail output?
Yes, the MCP47FEB21A2-E/ST provides rail-to-rail output swing: minimum output voltage is 0.01 V above VSS, and maximum is VDD – 0.04 V, verified across –40°C to +125°C and 2.7V–5.5V VDD. This capability enables direct interfacing with comparators, ADC references, or op-amp inputs without level-shifting circuitry. The MCP47FEB21A2-E/ST's output amplifier sustains ±20 mA drive strength, supporting moderate capacitive and resistive loads without external buffering.
MCP47FEB21A2-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:
- -
MCP47FEB21A2-E/ST FAQ
1.How can I place an order for MCP47FEB21A2-E/ST through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP47FEB21A2-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 MCP47FEB21A2-E/ST reliable?
The price and inventory of MCP47FEB21A2-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 MCP47FEB21A2-E/ST is usually 5 days.
3.What payment methods are accepted for MCP47FEB21A2-E/ST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP47FEB21A2-E/ST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP47FEB21A2-E/ST?
MCP47FEB21A2-E/ST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP47FEB21A2-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 MCP47FEB21A2-E/ST?
For technical support, including MCP47FEB21A2-E/ST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP47FEB21A2-E/ST requirements.
6.How does Aetrix verify that MCP47FEB21A2-E/ST is sourced from the original manufacturer or authorized distributors?
All MCP47FEB21A2-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 MCP47FEB21A2-E/ST meets industry standards.
7.What is the process for return or replacement of MCP47FEB21A2-E/ST?
All MCP47FEB21A2-E/ST units undergo pre-shipment inspection (PSI). If there is an issue with MCP47FEB21A2-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 MCP47FEB21A2-E/ST part is unused and in its original packaging.
Return procedure for MCP47FEB21A2-E/ST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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