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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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MCP4725 데이터시트(PDF) 1 Page - Microchip Technology |
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MCP4725 데이터시트(HTML) 1 Page - Microchip Technology |
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1 / 56 page  2007-2022 Microchip Technology Inc. and its subsidiaries DS20002039E MCP4725 Features • 12-Bit Resolution • On-Board Nonvolatile Memory (EEPROM) • ±0.2 LSB DNL (typical) • External A0 Address Pin • Normal or Power-Down Mode • Fast Settling Time: 6 µs (typical) • External Voltage Reference (VDD) • Rail-to-Rail Output • Low Power Consumption • Single-Supply Operation: 2.7V to 5.5V •I2C Interface: - Eight Available Addresses - Standard (100 kbps), Fast (400 kbps), and High-Speed (3.4 Mbps) Modes • Small 6-Lead SOT-23 and DFN Package Options • Extended Temperature Range: -40°C to +125°C Applications • Set Point or Offset Trimming • Sensor Calibration • Closed-Loop Servo Control • Low Power Portable Instrumentation • PC Peripherals • Data Acquisition Systems Block Diagram General Description The MCP4725 is a low-power, high accuracy, single channel, 12-bit buffered voltage output Digital-to- Analog Converter (DAC) with nonvolatile memory (EEPROM). Its on-board precision output amplifier allows it to achieve rail-to-rail analog output swing. The DAC input and configuration data can be programmed to the nonvolatile memory (EEPROM) by the user using I2C interface command. The nonvolatile memory feature enables the DAC device to hold the DAC input code during power-off time, and the DAC output is available immediately after power-up. This feature is very useful when the DAC device is used as a supporting device for other devices in the network. The device includes a Power-on-Reset (POR) circuit to ensure reliable power-up and an on-board charge pump for the EEPROM programming voltage. The DAC reference is driven from VDD directly. In power- down mode, the output amplifier can be configured to present a known low, medium, or high resistance output load. The MCP4725 has an external A0 address bit selection pin. This A0 pin can be tied to VDD or VSS of the user’s application board. The MCP4725 has a two-wire I2C compatible serial interface for standard (100 kHz), fast (400 kHz), or high speed (3.4 MHz) mode. The MCP4725 is an ideal DAC device where design simplicity and small footprint is desired, and for applications requiring the DAC device settings to be saved during power-off time. The device is available in a small 6-pin SOT-23 and DFN package. Resistive Power-on Reset Charge Pump EEPROM I2C Interface Logic Input Register DAC Register Op Amp VDD VSS SCL SDA VOUT A0 String DAC 12-Bit Digital-to-Analog Converter with EEPROM Memory |
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