MCP4812-E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP4812-E/SN is a dual-channel 10-bit digital-to-analog converter from Microchip with SPI serial interface in an 8-pin SOIC package. It delivers up to 4.176V analog output voltage with binary-coded serial input for microcontroller-driven precision voltage generation. Available lead-free in a compact SOIC-8 footprint for embedded instrumentation and calibration circuits.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4812-E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.0300(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-channel 10-bit DAC resolution enables precise analog voltage generation up to 4.176V for calibration and signal synthesis
- SPI serial interface with binary input coding simplifies connection to any microcontroller with minimal pin count
- Lead-free SOIC-8 package provides a compact 3.90mm footprint suitable for space-constrained embedded designs
- Microchip MCP481x family compatibility allows easy drop-in scaling from 8-bit to 12-bit resolution without PCB redesign
Applications
MCP4812-E/SN is used in embedded systems requiring precision analog voltage references or programmable bias levels, such as sensor calibration circuits and programmable gain amplifier control. Its dual-channel SPI DAC architecture allows simultaneous independent voltage generation for two control loops from a single 8-pin IC, reducing BOM in motor driver and lighting control designs. Industrial instrumentation and data acquisition front-ends also leverage its 10-bit resolution for fine-grained output adjustment from a microcontroller.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 9Weeks |
| YTEOL | 8 |
| Analog Output Voltage-Max | 4.176V |
| Converter Type | D/A CONVERTER |
| Input Bit Code | BINARY |
| Input Format | SERIAL |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Linearity Error-Max (EL) | 0.34179% |
| Number of Bits | 10 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.23 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Settling Time-Nom (tstl) | 4.5 µs |
| Supply Current-Max | 0.75mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| ## MCP4812-E/SN Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Mainland China, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP4812-E/SN:
suggested
suggested
Frequently Asked Questions
How does MCP4812-E/SN's 10-bit resolution translate to voltage step size in a 3.3V reference application?
With a 10-bit DAC and a 3.3V reference, the MCP4812-E/SN produces a voltage step size of approximately 3.22mV per LSB (3.3V divided by 1024 codes). This resolution is sufficient for precise bias and calibration control in sensor interfaces, where a 3mV step size enables fine tuning of offset voltages without over-resolving the DAC relative to system noise floors in 12-bit ADC measurement chains.
Can MCP4812-E/SN be controlled from a 3.3V SPI microcontroller while driving a 5V reference load?
The MCP4812-E/SN accepts SPI logic levels compatible with 3.3V microcontrollers since its digital input threshold is below 1.6V, enabling direct interface without level translators. However, the analog output voltage is bounded by the device's VDD supply, so to reach outputs near 4.176V the supply must be set to at least 4.5V. In mixed-voltage designs, the SPI bus can operate at 3.3V while the analog supply is independently set to 5V, providing full dual-rail flexibility.
For a dual-output programmable current source design, why select MCP4812-E/SN over two discrete single-channel DACs?
The MCP4812-E/SN integrates two independent 10-bit DAC channels in a single SOIC-8 package, reducing PCB area by roughly 50% compared to two separate SOIC-8 single-channel DACs. Both channels share the same SPI bus and can be updated simultaneously or independently, which simplifies firmware and reduces wiring. For battery-powered programmable current sources where board space and BOM cost are critical, the dual-channel integration provides a clear advantage.
How does the MCP4812-E/SN 9-week factory lead time affect procurement planning for production runs?
The MCP4812-E/SN carries a typical factory lead time of 9 weeks, which means engineering teams should plan orders at least 2-3 months ahead of production start to avoid schedule delays. Safety stock of 500 to 1000 units is recommended for medium-volume runs to absorb lead-time variability. Authorized distributors often carry buffer inventory that can bridge short gaps, but blanket orders placed at design-win stage offer the most reliable supply continuity for this 8-pin SOIC DAC.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.3350 | $2.33 |
| 100+ | $2.1100 | $211.00 |
| 1000+ | $2.0600 | $2060.00 |
| 5000+ | $2.0300 | $10150.00 |
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