사양
| 속성 | 가치 |
| Supplier | Microchip Technology |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| NumberofBits | 12 |
| NumberofD/AConverters | 1 |
| SettlingTime | 6µs (Typ) |
| OutputType | Voltage - Buffered |
| DifferentialOutput | No |
| DataInterface | I²C |
| ReferenceType | External, Supply |
| Voltage-SupplyAnalog | 2.7V ~ 5.5V |
| Voltage-SupplyDigital | 2.7V ~ 5.5V |
| INL/DNL(LSB) | ±2, ±0.2 |
| Architecture | R-2R |
| OperatingTemperature | -40°C ~ 125°C |
| Package/Case | SOT-23-6 |
| SupplierDevicePackage | SOT-23-6 |
개요
Description
Introduction to MCP4726A3T-E/CH
- Microchip 12-bit I2C DAC, single-channel, in an 8-pin package.
- Resolution: 12-bit; output voltage proportional to code; typically uses VDD as reference (no external reference required).
- Interface: I2C two-wire; 7-bit address selectable via A0–A2 pins.
- Registers: has a volatile DAC register for immediate updates and a non-volatile DAC register to retain the last setting after power cycles.
- Output: rail-to-rail 0 to VDD; low output impedance suitable for direct analog control.
- Power/package: supply range roughly 2.7–5.5 V; low power consumption; A3T denotes the package code; -E/CH indicates RoHS-compliant, lead-free.
- Applications: microcontroller-based analog control, sensor calibration, waveform generation, and other precision voltage outputs.
Notes: Always consult the datasheet for exact electrical specs, timing, and package details.
- Microchip 12-bit I2C DAC, single-channel, in an 8-pin package.
- Resolution: 12-bit; output voltage proportional to code; typically uses VDD as reference (no external reference required).
- Interface: I2C two-wire; 7-bit address selectable via A0–A2 pins.
- Registers: has a volatile DAC register for immediate updates and a non-volatile DAC register to retain the last setting after power cycles.
- Output: rail-to-rail 0 to VDD; low output impedance suitable for direct analog control.
- Power/package: supply range roughly 2.7–5.5 V; low power consumption; A3T denotes the package code; -E/CH indicates RoHS-compliant, lead-free.
- Applications: microcontroller-based analog control, sensor calibration, waveform generation, and other precision voltage outputs.
Notes: Always consult the datasheet for exact electrical specs, timing, and package details.
Equivalent
The MCP4726A3T-E/CH is a 12‑bit I2C DAC. Close cross‑vendors/alternatives:
- TI: DAC7571 (12‑bit I2C), DAC7574/7575 (multi‑channel)
- Analog Devices: AD5662 / AD5665 (12‑bit I2C)
- Microchip: MCP4725 (12‑bit I2C, single‑channel); MCP4728 (quad 12‑bit I2C)
Note: verify voltage range, memory options, and pinout for a true drop‑in substitute.
- TI: DAC7571 (12‑bit I2C), DAC7574/7575 (multi‑channel)
- Analog Devices: AD5662 / AD5665 (12‑bit I2C)
- Microchip: MCP4725 (12‑bit I2C, single‑channel); MCP4728 (quad 12‑bit I2C)
Note: verify voltage range, memory options, and pinout for a true drop‑in substitute.
Features
Key features of MCP4726A3T-E/CH (dual 12-bit I2C DAC):
- Dual 12-bit DACs with two buffered voltage outputs (DACA and DACB)
- I2C serial interface (standard 100 kHz up to 1 MHz fast mode)
- 0 to VDD output range (uses VDD as reference; no external reference required)
- Supply range roughly 2.7 V to 5.5 V
- Stores last programmed values in nonvolatile memory; power-on default restores stored data
- Independent or simultaneous updates of channels via I2C commands
- Low power consumption with per-channel power-down modes
- 8-pin package (ROHS-compliant)
Note: Exact temp range and packaging variants depend on the specific lot/lead frame option; the A3T-E/CH designation indicates industrial/commercial grade packaging in an 8-pin package.
- Dual 12-bit DACs with two buffered voltage outputs (DACA and DACB)
- I2C serial interface (standard 100 kHz up to 1 MHz fast mode)
- 0 to VDD output range (uses VDD as reference; no external reference required)
- Supply range roughly 2.7 V to 5.5 V
- Stores last programmed values in nonvolatile memory; power-on default restores stored data
- Independent or simultaneous updates of channels via I2C commands
- Low power consumption with per-channel power-down modes
- 8-pin package (ROHS-compliant)
Note: Exact temp range and packaging variants depend on the specific lot/lead frame option; the A3T-E/CH designation indicates industrial/commercial grade packaging in an 8-pin package.
Pinout
- Pin count: 8 pins (8-pin package such as SOIC/TSSOP).
- Function: Single-channel, 12-bit DAC with I2C interface (MCP4726 family). It converts a digital value received over I2C into an analog voltage on VOUT. Uses an I2C address pin (A0) to set the bus address; has VDD and GND power pins; SCL and SDA are the I2C lines. The device supports non-volatile storage of the DAC value and typical update modes. The E/CH suffix indicates a lead-free package.
- Function: Single-channel, 12-bit DAC with I2C interface (MCP4726 family). It converts a digital value received over I2C into an analog voltage on VOUT. Uses an I2C address pin (A0) to set the bus address; has VDD and GND power pins; SCL and SDA are the I2C lines. The device supports non-volatile storage of the DAC value and typical update modes. The E/CH suffix indicates a lead-free package.
Manufacturer
- Manufacturer: Microchip Technology Inc.
- What kind of company: An American multinational semiconductor company that designs, develops, and manufactures microcontrollers, analog and memory devices, and other semiconductor products (publicly traded on NASDAQ, ticker: MCHP).
- What kind of company: An American multinational semiconductor company that designs, develops, and manufactures microcontrollers, analog and memory devices, and other semiconductor products (publicly traded on NASDAQ, ticker: MCHP).
Application
MCP4726A3T-E/CH is a 12‑bit I2C DAC. Common application areas:
- Generate precise programmable DC voltages for sensors, ADC references, biasing, and analog control in microcontroller projects.
- Calibration sources and reference voltages in instrumentation and test equipment.
- Simple waveform generation (ramps/steps) for lab benches and prototyping.
- Analog control for servo/motor drivers and automation (speed/position control).
- LED dimming, audio/gain control, and other single-channel analog signaling tasks.
- Development boards and educational kits needing a compact, I2C DAC.
- Generate precise programmable DC voltages for sensors, ADC references, biasing, and analog control in microcontroller projects.
- Calibration sources and reference voltages in instrumentation and test equipment.
- Simple waveform generation (ramps/steps) for lab benches and prototyping.
- Analog control for servo/motor drivers and automation (speed/position control).
- LED dimming, audio/gain control, and other single-channel analog signaling tasks.
- Development boards and educational kits needing a compact, I2C DAC.
Package
8-pin MSOP (small-outline) package, RoHS-compliant. The A3T-E/CH variant specifies MSOP packaging; check the datasheet for exact dimensions.
