用户手册目录Preface5Introduction5Document Layout5Conventions Used in this Guide6Recommended Reading7The Microchip Web Site7Customer Support7Document Revision History8Chapter 1. Quick Start Instructions91.1 Introduction91.2 What is the MCP4725 SOT-23-6 Evaluation Kit91.3 Getting Started with PICkit Serial Analyzer9A.1 Introduction25A.2 Board - Schematic26A.3 Board - Top Layer27A.4 Board - Top Silk Layer28A.5 Board - Bottom Layer29Worldwide Sales and Service32文件大小： 573.8 KB页数： 32Language: English打开用户手册
数据表目录1.0 Electrical Characteristics32.0 Typical Performance Curves7FIGURE 2-1: DNL vs. Code (VDD = 5.5V).7FIGURE 2-2: DNL vs. Code and Temperature (TA = -40°C to +125°C).7FIGURE 2-3: DNL vs. Code (VDD = 2.7V).7FIGURE 2-4: DNL vs. Code and Temperature (TA = -40°C to +125°C).7FIGURE 2-5: INL vs. Code.7FIGURE 2-6: INL vs. Code and Temperature (VDD = 5.5V).7FIGURE 2-7: INL vs. Code and Temperature (VDD = 2.7V).8FIGURE 2-8: Zero Scale Error vs. Temperature (Code = 000d).8FIGURE 2-9: Full Scale Error vs. Temperature (Code = 4095d).8FIGURE 2-10: Output Error vs. Temperature (Code = 4000d).8FIGURE 2-11: IDD vs. Temperature.8FIGURE 2-12: IDD Histogram .9FIGURE 2-13: IDD Histogram.9FIGURE 2-14: Offset Error vs. Temperature and VDD.9FIGURE 2-15: VOUT vs. Resistive Load.9FIGURE 2-16: Source and Sink Current Capability.9FIGURE 2-17: VIN High Threshold vs. Temperature and VDD.9FIGURE 2-18: VIN Low Threshold vs. Temperature and VDD.10FIGURE 2-19: Full Scale Settling Time.10FIGURE 2-20: Full Scale Settling Time.10FIGURE 2-21: Half Scale Settling Time.10FIGURE 2-22: Half Scale Settling Time.10FIGURE 2-23: Code Change Glitch.10FIGURE 2-24: Exiting Power Down Mode.113.0 Pin Descriptions13TABLE 3-1: Pin Function Table133.1 Analog Output Voltage (VOUT)133.2 Supply Voltage (VDD or VSS)133.3 Serial Data Pin (SDA)133.4 Serial Clock Pin (SCL)133.5 Device Address Selection Pin (A0)134.0 Terminology154.1 Resolution154.2 LSB154.3 Integral Nonlinearity (INL) or Relative Accuracy15FIGURE 4-1: INL Accuracy.154.4 Differential Nonlinearity (DNL)15FIGURE 4-2: DNL Accuracy.164.5 Offset Error16FIGURE 4-3: Offset Error.164.6 Gain Error164.7 Full Scale Error (FSE)16FIGURE 4-4: Gain Error and Full Scale Error.164.8 Gain Error Drift164.9 Offset Error Drift174.10 Settling Time174.11 Major-Code Transition Glitch174.12 Digital Feedthrough175.0 General Description195.1 Output Voltage195.2 LSB SIZE19TABLE 5-1: LSB SIZES for MCP4725 (example)195.3 Voltage Reference195.4 Reset Conditions195.5 Normal and Power-Down Modes20TABLE 5-2: Power-down bits20FIGURE 5-1: Output Stage for Power- Down Mode.205.6 Non-Volatile EEPROM Memory21TABLE 5-3: EEPROM Memory and Factory Default Settings (Total number of bits: 14 bits)21TABLE 5-4: DAC register216.0 Theory Of Operation236.1 Write Commands23TABLE 6-1: Input Data Coding23TABLE 6-2: Write Command Type24FIGURE 6-1: Fast Mode Write Command.24FIGURE 6-2: Write Commands for DAC Input Register and EEPROM.256.2 read command26FIGURE 6-3: Read Command and Output Data Format.267.0 I2C Serial Interface Communication277.1 OVERVIEW277.2 Device Addressing27FIGURE 7-1: Device Addressing.277.3 General Call28FIGURE 7-2: General Call Address Format.287.4 High-Speed (HS) Mode287.5 I2C BUS CHARACTERISTICS28FIGURE 7-3: Data Transfer Sequence On The Serial Bus.29TABLE 7-1: I2c serial timing Specifications30FIGURE 7-4: I2C Bus Timing Data.328.0 Typical Applications338.1 Connecting to I2C BUS using Pull-Up Resistors33FIGURE 8-1: I2C Bus Interface Connection with A0 pin tied to VSS.33FIGURE 8-2: I2C Bus Connection Test.338.2 Using Non-Volatile EEPROM Memory348.3 Power Supply Considerations348.4 Layout Considerations348.5 Application Examples34FIGURE 8-3: Digitally Controllable Current Source.399.0 Development Support419.1 Evaluation & Demonstration Boards41FIGURE 9-1: MCP4725 SOT-23-6 Evaluation Board.41FIGURE 9-2: Setup for the MCP4725 SOT-23-6 Evaluation Board with PICkit™ Serial Analyzer.41FIGURE 9-3: Example of PICkit™ Serial User Interface.4110.0 Packaging Information4310.1 Package Marking Information43Corporate Office50Atlanta50Boston50Chicago50Cleveland50Fax: 216-447-064350Dallas50Detroit50Kokomo50Toronto50Fax: 852-2401-343150Australia - Sydney50China - Beijing50China - Shanghai50India - Bangalore50Korea - Daegu50Korea - Seoul50Singapore50Taiwan - Taipei50Fax: 43-7242-2244-39350Denmark - Copenhagen50France - Paris50Germany - Munich50Italy - Milan50Spain - Madrid50UK - Wokingham50Worldwide Sales and Service50文件大小： 1.5 MB页数： 50Language: English打开用户手册
