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MCP4725A1T-E/CH bảng dữ liệu(PDF) 1 Page - Microchip Technology |
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MCP4725A1T-E/CH bảng dữ liệu(HTML) 1 Page - Microchip Technology |
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1 / 50 page  © 2009 Microchip Technology Inc. DS22039D-page 1 MCP4725 Features • 12-Bit Resolution • On-Board Non-Volatile 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 •I2CTM Interface: - Eight Available Addresses - Standard (100 kbps), Fast (400 kbps), and High-Speed (3.4 Mbps) Modes • Small 6-lead SOT-23 Package • 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 DESCRIPTION The MCP4725 is a low-power, high accuracy, single channel, 12-bit buffered voltage output Digital-to- Analog Convertor (DAC) with non-volatile 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 non-volatile memory (EEPROM) by the user using I2C interface command. The non-volatile 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 package. Package Type Resistive Power-on Reset Charge Pump EEPROM I2C Interface Logic Input Register DAC Register Op Amp VDD VSS SCL SDA VOUT A0 String DAC 3 VDD SCL SDA VSS A0 SOT-23-6 VOUT 2 1 4 5 6 MCP4725 12-Bit Digital-to-Analog Converter with EEPROM Memory in SOT-23-6 |
Số phần tương tự - MCP4725A1T-E/CH |
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Mô tả tương tự - MCP4725A1T-E/CH |
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