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Microchip Technology MCP47FEB21A1T-E/ST
- Part No.:
- MCP47FEB21A1T-E/ST
- Manufacturer:
- Microchip Technology
- Category:
- Digital to Analog Converters (DAC)
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MCP47FEB21A1T-E/ST.pdf
- Description:
- IC DAC 12BIT V-OUT 8TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MCP47FEB21A1T-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, 6 µs typical settling time, and supports VDD, external VREF (buffered/unbuffered), or internal 1.22 V bandgap as reference source - used in precision sensor calibration and motor control feedback loops.
For engineers reviewing the MCP47FEB21A1T-E/ST datasheet, MCP47FEB21A1T-E/ST pinout, MCP47FEB21A1T-E/ST application, or MCP47FEB21A1T-E/ST equivalent, key selection criteria include 12-bit monotonicity (±0.5 LSb INL), EEPROM-configurable power-on reset value, gain-selectable output (1x/2x), and operation across –40°C to +125°C in TSSOP-8 package.
Technical Context
The MCP47FEB21A1T-E/ST implements a resistor ladder architecture with integrated rail-to-rail output amplifier, selectable gain (1x or 2x), and configurable reference source (VDD, external VREF, or internal 1.22 V bandgap). Its nonvolatile memory stores DAC output register, voltage reference mode, gain setting, power-down configuration, and slave address - enabling auto-recall at power-on or brown-out reset.
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 programmability. Power-down modes offer high-impedance output and selectable pull-down resistors (1 kΩ or 100 kΩ), achieving 650 nA typical quiescent current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit (4096 steps) - ensures ±0.5 LSb integral nonlinearity over full scale for precision analog setpoint generation |
| Settling Time | 6 µs typical - enables fast closed-loop response in motor control and real-time calibration systems |
| Reference Options | VDD, external VREF (buffered/unbuffered), or internal 1.22 V bandgap - allows flexible accuracy vs. power trade-offs without external components |
| Output Gain | Selectable 1x or 2x - doubles full-scale range when using external VREF ≤ VDD/2, extending dynamic range without op-amp stage |
| EEPROM Endurance | 1 million write cycles - supports field reconfiguration of POR/BOR output, reference, gain, and power-down settings over product lifetime |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, industrial PLC, and harsh-environment embedded applications |
| Supply Current (Normal) | <180 µA (single channel) - enables battery-powered portable instrumentation with multi-year runtime |
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 driven by DAC core; capable of sourcing/sinking 20 mA |
| VREF0 | Reference input | Accepts external reference (buffered or unbuffered); when selected, enables 1x/2x gain configuration |
| NC | No connect | Internally unused pin; must be left floating or tied to ground per layout guidelines |
| SCL | I²C clock | Open-drain input synchronized to master clock; supports up to 3.4 MHz High-Speed mode |
| LAT0/HVC | Latency control / HV command | Enables WiperLock™ protection; high-voltage entry (≥9 V) locks EEPROM writes against accidental modification |
| VSS | Ground | Analog and digital common return; requires low-impedance connection to minimize noise coupling |
| SDA | I²C data | Open-drain bidirectional line; supports standard arbitration and ACK/NACK signaling |
| VDD | Power supply | 2.7 V to 5.5 V analog/digital supply; also serves as reference source when VRxB:VRxA = '11' |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile configuration memory | EEPROM stores DAC output, reference source, gain, power-down mode, and slave address - eliminates boot-time initialization overhead |
| Auto-recall on POR/BOR | Restores last-saved DAC output and configuration within 25 µs after power-up or brown-out recovery - ensures deterministic system behavior |
| WiperLock™ technology | Hardware-enabled write protection via LAT0/HVC pin; ≥9 V pulse required to enter programming mode - prevents unintended EEPROM corruption |
| Rail-to-rail output amplifier | Delivers 0.01 V to (VDD – 0.04 V) output swing into 5 kΩ load - maximizes usable dynamic range across supply voltages |
| Configurable power-down | Three modes: high-Z output with 1 kΩ or 100 kΩ pull-down, or disconnect only - reduces system standby current to 650 nA |
Applications
| Industrial Sensor Calibration | Motor Control Feedback |
|---|---|
|
Use Scenario: Calibrating offset/gain of pressure, temperature, or current sensors in factory test fixtures and field-deployed transmitters. IC Role / Device Role / Timing Role: Precision voltage setpoint generator referenced to stable bandgap or external precision reference. Use Value: 12-bit resolution and ±0.5 LSb INL enable sub-0.025% full-scale calibration accuracy; EEPROM storage retains per-unit trim values across power cycles. |
Use Scenario: Generating analog command signals for PWM gate drivers or analog-input servo amplifiers in BLDC and stepper motor systems. IC Role / Device Role / Timing Role: Low-latency, rail-to-rail analog output stage synchronized to microcontroller I²C commands. Use Value: 6 µs settling time supports >100 kHz loop update rates; 2x gain option extends 0–2.048 V reference to 0–4.096 V output range without external op-amp. |
| Portable Instrumentation | PC Peripheral Analog Interface |
|
Use Scenario: Battery-powered handheld multimeters, data loggers, and portable oscilloscopes requiring low-power, stable analog outputs. IC Role / Device Role / Timing Role: Low-quiescent-current DAC for generating reference voltages, bias points, or test waveforms. Use Value: <180 µA normal operation and 650 nA power-down current extend battery life; internal bandgap reference eliminates external component count. |
Use Scenario: USB-to-analog adapters, audio level controls, and monitor brightness/volume adjustment circuits in desktop peripherals. IC Role / Device Role / Timing Role: I²C-configurable analog output interfacing between host controller and analog subsystem. Use Value: Four fixed slave addresses simplify multi-DAC configurations; High-Speed I²C (3.4 MHz) enables rapid updates during user interaction events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DAC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP47FEB22A1T-E/ST | Dual-channel 12-bit DAC in same TSSOP-8 package; shares identical specs except for second VOUT1 and shared VREF pin. | Required when two independent analog outputs are needed (e.g., differential signal generation or dual-sensor biasing). | Select MCP47FEB22A1T-E/ST only if dual-channel functionality is mandatory; otherwise MCP47FEB21A1T-E/ST offers lower cost and simpler routing. |
| AD5689RBRUZ-RL7 | 16-bit dual-channel DAC with internal 2.5 V reference, SPI interface, and 1.8 V to 5.5 V supply; no EEPROM, higher INL (±2 LSb), larger 16-lead TSSOP package. | Better resolution suited for metrology-grade applications; SPI interface preferred in MCU ecosystems lacking I²C hardware. | Choose AD5689RBRUZ-RL7 for 16-bit precision or SPI compatibility; MCP47FEB21A1T-E/ST remains optimal for I²C-based designs needing EEPROM persistence and smaller footprint. |
Compared with MCP47FEB22A1T-E/ST, the MCP47FEB21A1T-E/ST saves board space and BOM cost in single-output systems; versus AD5689RBRUZ-RL7, it trades resolution for EEPROM configurability, I²C simplicity, and TSSOP-8 compactness - making it ideal for cost-sensitive, field-programmable embedded analog interfaces.
Availability
MCP47FEB21A1T-E/ST is available at Aetrix Electronics and suitable for industrial sensor calibration, motor control feedback, and portable instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MCP47FEB21A1T-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, 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 - integrating nonvolatile configuration, flexible reference options, and robust I²C control to reduce external component count and firmware complexity.
FAQ
What is the maximum operating temperature range for the MCP47FEB21A1T-E/ST?
The MCP47FEB21A1T-E/ST is specified for continuous operation from –40°C to +125°C ambient temperature. This extended range is validated across all electrical parameters including INL, DNL, settling time, and EEPROM reliability - making it suitable for under-hood automotive modules, industrial PLC I/O cards, and outdoor environmental monitoring equipment where thermal stability is critical.
Does the MCP47FEB21A1T-E/ST support external reference voltage sources?
Yes, the MCP47FEB21A1T-E/ST supports external reference voltage on the VREF0 pin in both buffered and unbuffered modes. When configured for external reference (VRxB:VRxA = '10' or '11'), the device allows 1x or 2x output gain - with 2x mode requiring VREF0 ≤ VDD/2 to maintain rail-to-rail compliance. The internal 1.22 V bandgap reference remains available as a third option.
How does the EEPROM nonvolatile memory function in the MCP47FEB21A1T-E/ST?
The MCP47FEB21A1T-E/ST integrates 32×16-bit EEPROM that stores the DAC output register value, reference source selection (VDD/VREF/bandgap), gain setting (1x/2x), power-down configuration, and I²C slave address. Upon power-on or brown-out reset, the device automatically recalls these settings - ensuring deterministic analog output without host MCU intervention. Write protection is enforced via WiperLock™ using the LAT0/HVC pin.
What is the settling time specification for the MCP47FEB21A1T-E/ST, and under what conditions is it measured?
The MCP47FEB21A1T-E/ST has a typical settling time of 6 µs to within 1/2 LSb of final value, measured from major code transitions (e.g., 400h to C00h in 12-bit mode) with RL = 5 kΩ and CL = 100 pF. This performance holds across VDD = 2.7 V to 5.5 V and temperature range –40°C to +125°C - enabling use in closed-loop systems requiring sub-100 kHz update rates.
Can the MCP47FEB21A1T-E/ST operate from a 1.8 V supply?
The MCP47FEB21A1T-E/ST supports 1.8 V to 2.7 V operation for I²C interface and basic logic functionality, but analog performance (INL, DNL, settling time) is reduced per datasheet specifications. Full analog specifications - including ±0.5 LSb INL and 6 µs settling - require VDD ≥ 2.7 V. For 1.8 V systems, use is limited to digital control with external reference and relaxed accuracy requirements.
MCP47FEB21A1T-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:
- -
MCP47FEB21A1T-E/ST FAQ
1.How can I place an order for MCP47FEB21A1T-E/ST through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP47FEB21A1T-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 MCP47FEB21A1T-E/ST reliable?
The price and inventory of MCP47FEB21A1T-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 MCP47FEB21A1T-E/ST is usually 5 days.
3.What payment methods are accepted for MCP47FEB21A1T-E/ST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP47FEB21A1T-E/ST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP47FEB21A1T-E/ST?
MCP47FEB21A1T-E/ST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP47FEB21A1T-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 MCP47FEB21A1T-E/ST?
For technical support, including MCP47FEB21A1T-E/ST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP47FEB21A1T-E/ST requirements.
6.How does Aetrix verify that MCP47FEB21A1T-E/ST is sourced from the original manufacturer or authorized distributors?
All MCP47FEB21A1T-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 MCP47FEB21A1T-E/ST meets industry standards.
7.What is the process for return or replacement of MCP47FEB21A1T-E/ST?
All MCP47FEB21A1T-E/ST units undergo pre-shipment inspection (PSI). If there is an issue with MCP47FEB21A1T-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 MCP47FEB21A1T-E/ST part is unused and in its original packaging.
Return procedure for MCP47FEB21A1T-E/ST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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