Overview
The MCP4728 device is a quad, 12-bit voltage output digital-to-analog converter (DAC) with non-volatile memory (EEPROM). Its integrated precision output amplifier makes it possible to achieve a rail-to-rail analog output swing.
The DAC input codes, device configuration bits, and I2C address bits are programmable to non-volatile memory (EEPROM) using I2C serial interface commands. The non-volatile storage feature allows the DAC device to hold the DAC input codes during power-off time, so the DAC outputs are available with the saved settings immediately after power-up. This feature is very useful when the DAC device is used as a supporting device for other devices on the application's network.
The MCP4728 device has a high-precision internal voltage reference (VREF = 2.048V). The user can select the internal reference or the external reference (VDD) for each channel individually.
Specification
- 12-bit voltage output DAC with four buffered outputs
- On-board non-volatile memory (EEPROM) for DAC codes and I2C™ address bits
- Internal or external voltage setpoint specification
- Output voltage range:
- - Using internal VREF (2.048V): 0.000V to 2.048V with gain setting = 1 / 0.000V to 4.096V with gain setting = 2
- - Using external VREF (VDD): 0.000V to VDD
- ±0.2 Least Significant Bit (LSB) Differential Nonlinearity (DNL) (typical)
- Fast descent time: 6 µs (typical)
- Normal or power-down mode
- Low power consumption
- Single supply operation: 2.7V to 5.5V
- I2C Interface: - Address Bits: User Programmable to
- EEPROM - Standard (100 kbps), Fast (400 kbps) and High Speed (HS) mode (3.4 Mbps)
- 10-pin MSOP package
- Extended temperature range: -40°C to +125°C
Scope of delivery
- 1x GY- MCP4728 12-bit Digital-to-Analog Converter (DAC) Evaluation Board
Shenzhen Harztec Technology Co., 309, 3F, Block B, Ganfeng Technology Building 1, No.993 Jiaxian Road, Xiangjiaotang Community, Bantian Street,, 518129 Shenzhen, China, [email protected], https://harztec.com