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MCP4912-E

Microchip Tech · Digital To Analog Converters (DACs) · SOIC-14

MCP4912-E from Microchip Tech, in a SOIC-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VDD power_in Positive supply voltage input, 2.7V to 5.5V relative to VSS; bypass with about 0.1 µF ceramic plus 10 µF tantalum.
2 NC unconnected No connection.
3 CS input Chip Select input; active low signal enables serial clock and data functions.
4 SCK input SPI compatible serial clock input.
5 SDI input SPI compatible serial data input.
6 NC unconnected No connection.
7 NC unconnected No connection.
8 LDAC input Synchronization input that transfers input registers to the DAC output registers when low, updating VOUTA and VOUTB together; can be tied to VSS.
9 SHDN input Hardware shutdown input; when low both DAC channels are shut down and the output is not available.
10 VOUTB output DAC B output from its own output amplifier, driving a range of VSS to VDD.
11 VREFB input DAC B reference voltage input, range VSS to VDD; can be tied to VDD.
12 VSS power_in Ground reference point for all circuitry on the device and analog ground current return path.
13 VREFA input DAC A reference voltage input, range VSS to VDD; can be tied to VDD.
14 VOUTA output DAC A output from its own output amplifier, driving a range of VSS to VDD.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-14
Category ADC/DAC/Data Conversion
Pins 14

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating Voltage VDD 2.7 5.5 V 3
Operating Current IDD 350 700 µA VDD = 5V; VREF unbuffered, digital inputs grounded, outputs unloaded, Code = 000h 3
Operating Current IDD 250 500 µA VDD = 3V; VREF unbuffered, digital inputs grounded, outputs unloaded, Code = 000h 3
Hardware Shutdown Current ISHDN 0.3 2 µA Power-on Reset circuit is turned off 3
Software Shutdown Current ISHDN_SW 3.3 6 µA Power-on Reset circuit stays on 3
Power-on-Reset Threshold VPOR 2 V 3
Resolution (MCP4912) n 10 Bits 3
INL Error (MCP4912) INL -3.5 0.5 3.5 LSb typ printed as ±0.5 3
DNL (MCP4912) DNL -0.5 0.1 0.5 LSb Note 1; typ printed as ±0.1 3
Offset Error VOS 0.02 1 % of FSR Code = 0x000h; typ printed as ±0.02 3
Gain Error gE -0.1 1 % of FSR Code = 0xFFFh, not including offset error 4
Input Range, Buffered Mode VREF 0.04 V VDD, 0.040 max; Note 2 4
Short Circuit Current ISC 15 24 mA 4
Schmitt Trigger High-Level Input Voltage VIH 0.7 V min is 0.7 VDD; all digital input pins 7
Schmitt Trigger Low-Level Input Voltage VIL 0.2 V max is 0.2 VDD; all digital input pins 7
Input Leakage Current ILEAKAGE -1 1 µA SHDN = LDAC = CS = SDI = SCK + VREF = VDD or VSS 7
Clock Frequency FCLK 20 MHz TA = +25°C (Note 1) 7
Clock High Time tHI 15 ns Note 1 7
Clock Low Time tLO 15 ns Note 1 7
CS Fall to First Rising CLK Edge tCSSR 40 ns Applies only when CS falls with CLK high. (Note 1) 7
Data Input Setup Time tSU 15 ns Note 1 7
Data Input Hold Time tHD 10 ns Note 1 7
SCK Rise to CS Rise Hold Time tCHS 15 ns Note 1 7
CS High Time tCSH 15 ns Note 1 7
LDAC Pulse Width tLD 100 ns Note 1 7
LDAC Setup Time tLS 40 ns Note 1 7
SCK Idle Time before CS Fall tIDLE 40 ns Note 1 7
INL Error (MCP4912), extended temperature INL -1 1 LSb Extended temperature table, printed ±1; typ at +125°C 5
DNL (MCP4912), extended temperature DNL -0.2 0.2 LSb Extended temperature table, printed ±0.2; Note 1 5
Operating Current, extended temperature IDD 400 µA Typical at +125°C; VREF unbuffered, digital inputs grounded, outputs unloaded, Code=000h 5
Hardware Shutdown Current, extended temperature ISHDN 1.5 µA POR circuit is turned-off 5
Software Shutdown Current, extended temperature ISHDN_SW 5 µA POR circuit stays turned-on 5
Offset Error Temperature Coefficient VOS/°C 0.16 ppm/°C -45°C to 25°C 4
Offset Error Temperature Coefficient VOS/°C -0.44 ppm/°C +25°C to 85°C 4
Gain Error Temperature Coefficient G/°C -3 ppm/°C 4
Offset Error Temperature Coefficient, extended VOS/°C -5 ppm/°C +25°C to +125°C 5
Input Impedance RVREF 165 kΩ Unbuffered Mode 4
Input Capacitance, Unbuffered Mode CVREF 7 pF 4
Slew Rate SR 0.55 V/µs 4
Settling Time tsettling 4.5 µs Within 1/2 LSb of final value from 1/4 to 3/4 full-scale range 4
Supply Voltage VDD 6.5 V 3
Current at Input Pins -2 2 mA 3
Current at Supply Pins -50 50 mA 3
Current at Output Pins -25 25 mA 3
Storage temperature -65 150 °C 3
Ambient temp. with power applied -55 125 °C 3
Maximum Junction Temperature TJ 150 °C 3
ESD protection on all pins (HBM) 4 kV HBM 3
ESD protection on all pins (MM) 400 V MM 3
Specified Temperature Range TA -40 125 °C 8
Operating Temperature Range TA -40 125 °C Note 1 8
Thermal Resistance, 14L-SOIC θJA 120 °C/W 8

CAD (KiCad official)

  • Symbol: MCP4912-E
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: mcp4912-e-etched.step / mcp4912-e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mcp4912-e.step / mcp4912-e.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip Tech datasheet (48 pp, sha256 8c507a2bce321888, retrieved 2026-10-31, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF