SNAS449F February   2008  – May 2017 DAC081C081 , DAC081C085

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1. 3.1 Block Diagram
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 AC and Timing Characteristics
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 DAC Section
      2. 8.3.2 Output Amplifier
      3. 8.3.3 Reference Voltage
      4. 8.3.4 Power-On Reset
      5. 8.3.5 Simultaneous Reset
      6. 8.3.6 Additional Timing Information: toutz
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power-Down Modes
    5. 8.5 Programming
      1. 8.5.1 Serial Interface
      2. 8.5.2 Basic I2C Protocol
      3. 8.5.3 Standard-Fast Mode
      4. 8.5.4 High-Speed (Hs) Mode
      5. 8.5.5 I2C Slave (Hardware) Address
      6. 8.5.6 Writing to the DAC Register
      7. 8.5.7 Reading from the DAC Register
    6. 8.6 Registers
      1. 8.6.1 DAC Register
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Bipolar Operation
      2. 9.1.2 DSP/Microprocessor Interfacing
        1. 9.1.2.1 Interfacing to the 2-Wire Bus
        2. 9.1.2.2 Interfacing to a Hs-mode Bus
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
    1. 10.1 Using References as Power Supplies
      1. 10.1.1 LM4132
      2. 10.1.2 LM4050
      3. 10.1.3 LP3985
      4. 10.1.4 LP2980
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Development Support
      2. 12.1.2 Device Nomenclature
        1. 12.1.2.1 Specification Definitions
    2. 12.2 Related Links
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6 Pin Configuration and Functions

NGF Package
6-Pin WSON
Top View
DAC081C081 DAC081C085 30052301.gif
DDC Package
6-Pin SOT
Top View
DAC081C081 DAC081C085 30052302.gif
DGK Package
8-Pin VSSOP
Top View
DAC081C081 DAC081C085 30052310.gif

Table 2. Pin Functions

PIN TYPE EQUIVALENT CIRCUIT DESCRIPTION
NAME WSON SOT VSSOP
ADR0 1 6 1 Digital Input,
three levels
DAC081C081 DAC081C085 30052362.gif
Tri-state Address Selection Input. Sets the two Least Significant Bits (A1 and A0) of the 7-bit slave address.
(see Table 3)
ADR1 — — 2 Digital Input,
three levels 		Tri-state Address Selection Input. Sets Bits A6 and A3 of the 7-bit slave address. (see Table 3)
GND 4 3 5 Ground Ground for all on-chip circuitry.
PAD (WSON only) — — Ground Exposed die attach pad can be connected to ground or left floating. Soldering the pad to the PCB offers optimal thermal performance and enhances package self-alignment during reflow.
SCL 2 5 3 Digital Input
DAC081C081 DAC081C085 30052361.gif
Serial Clock Input. SCL is used together with SDA to control the transfer of data in and out of the device.
SDA 3 4 4 Digital
Input/Output		 Serial Data bidirectional connection. Data is clocked into or out of the internal 16-bit register relative to the clock edges of SCL. This is an open drain data line that must be pulled to the supply (VA) by an external pullup resistor.
VA 5 2 6 Supply Power supply input. For the SOT and WSON versions, this supply is used as the reference. Must be decoupled to GND.
VOUT 6 1 8 Analog Output Analog Output Voltage
VREF — — 7 Supply Unbufferred reference voltage. For the VSSOP-8, this supply is used as the reference. VREF must be free of noise and decoupled to GND.