MCP4821-E/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4821-E/MS is a single-channel 12-bit voltage-output DAC with SPI interface in an 8-pin MSOP package, providing up to 4.176 V analog output with integrated voltage reference. It delivers accurate waveform generation and control signal output with low power consumption. Available from stock worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4821-E/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.2000(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
- 12-bit resolution with 4096 output levels and integrated voltage reference for accurate analog control without external reference IC
- SPI serial interface enables direct connection to microcontrollers at up to 20 MHz clock for fast waveform updates
- Compact MSOP-8 package with 2.7 V to 5.5 V supply range suits space-constrained portable and industrial signal generation designs
Applications
The MCP4821-E/MS provides precision analog control signals in industrial process control, sensor calibration equipment, and audio test instruments requiring 12-bit DAC accuracy from a compact surface-mount device. Its SPI interface and 4.176 V output swing make it directly usable as a programmable voltage reference, bias generator, or waveform source in microcontroller-based systems. The MSOP-8 package and single 2.7 V to 5.5 V supply minimize PCB footprint and power consumption in battery-operated portable instruments.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 12Weeks |
| YTEOL | 8 |
| Analog Output Voltage-Max | 4.176V |
| Converter Type | D/A CONVERTER |
| Input Bit Code | BINARY |
| Input Format | SERIAL |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Linearity Error-Max (EL) | 0.2929% |
| Number of Bits | 12 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Settling Time-Nom (tstl) | 4.5 µs |
| Supply Current-Max | 0.4mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| ## MCP4821-E/MS 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 | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP4821-E/MS:
suggested
suggested
suggested
suggested
suggested
D/A Converter, 1 Func, Serial Input Loading, 4.5us Settling Time, PDSO8
D/A Converter, 1 Func, Serial Input Loading, 4.5us Settling Time, PDSO8
Frequently Asked Questions
What output resolution and voltage range does the MCP4821-E/MS DAC provide?
The MCP4821-E/MS provides 12-bit resolution yielding 4096 discrete output levels with a maximum analog output of 4.176 V, corresponding to a voltage step size of approximately 1.02 mV per LSB. The integrated internal voltage reference eliminates the need for an external precision reference in most designs, simplifying BOM and reducing component count.
How fast can a microcontroller update the MCP4821-E/MS output for waveform generation?
The MCP4821-E/MS SPI interface supports clock rates up to 20 MHz, allowing a full 16-bit SPI transfer (command plus 12-bit data) to complete in approximately 800 ns. At this update rate, a microcontroller can generate waveforms with sample rates exceeding 1 MHz, sufficient for audio frequency synthesis up to 20 kHz using Nyquist-compliant 40 kHz sample rates.
For a programmable current source in lab equipment, how does MCP4821-E/MS reduce design complexity?
The MCP4821-E/MS with a precision op-amp and sense resistor forms a complete digitally-controlled current source with 12-bit accuracy — the DAC's 4.096 V full-scale output across a 1 kΩ sense resistor yields 4.096 mA full-scale current with 1 µA resolution steps. The internal voltage reference ensures output accuracy independent of supply voltage variation from 2.7 V to 5.5 V, removing the need for a separate reference IC.
What procurement lead time should designers plan for MCP4821-E/MS in production builds?
The MCP4821-E/MS carries a 12-week factory lead time from Microchip authorized distributors, which is longer than some competing 12-bit DACs. Production schedules should include a minimum 14-week procurement buffer, and engineering teams qualifying the design should evaluate the MCP4822-E/MS (dual-channel variant in the same MSOP-8 package) as an alternative if the project requires 2 DAC channels, since parallel procurement may shorten effective lead time.
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