ZHCSLN9A October 2020 – May 2021 DAC61402 , DAC81402
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
-
7 Specifications
- 7.1 Absolute Maximum Ratings
- 7.2 ESD Ratings
- 7.3 Recommended Operating Conditions
- 7.4 Thermal Information
- 7.5 Electrical Characteristics
- 7.6 Timing Requirements: Write, IOVDD: 1.7 V to 2.7 V
- 7.7 Timing Requirements: Write, IOVDD: 2.7 V to 5.5 V
- 7.8 Timing Requirements: Read and Daisy Chain, FSDO = 0, IOVDD: 1.7 V to 2.7 V
- 7.9 Timing Requirements: Read and Daisy Chain, FSDO = 1, IOVDD: 1.7 V to 2.7 V
- 7.10 Timing Requirements: Read and Daisy Chain, FSDO = 0, IOVDD: 2.7 V to 5.5 V
- 7.11 Timing Requirements: Read and Daisy Chain, FSDO = 1, IOVDD: 2.7 V to 5.5 V
- 7.12 Timing Diagrams
- 7.13 Typical Characteristics
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3 Feature Description
- 8.4 Device Functional Modes
- 8.5 Programming
- 8.6
Register Map
- 8.6.1 NOP Register (address = 00h) [reset = 0000h]
- 8.6.2 DEVICEID Register (address = 01h) [reset = 0A70h or 0930h]
- 8.6.3 STATUS Register (address = 02h) [reset = 0000h]
- 8.6.4 SPICONFIG Register (address = 03h) [reset = 0AA4h]
- 8.6.5 GENCONFIG Register (address = 04h) [reset = 4000h]
- 8.6.6 BRDCONFIG Register (address = 05h) [reset = 000Fh]
- 8.6.7 SYNCCONFIG Register (address = 06h) [reset = 0000h]
- 8.6.8 DACPWDWN Register (address = 09h) [reset = FFFFh]
- 8.6.9 DACRANGE Register (address = 0Ah) [reset = 0000h]
- 8.6.10 TRIGGER Register (address = 0Eh) [reset = 0000h]
- 8.6.11 BRDCAST Register (address = 0Fh) [reset = 0000h]
- 8.6.12 DACn Register (address = 11h to 12h) [reset = 0000h]
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
9.2 Typical Application
In industrial automation and process control applications, voltage and current analog output signals are used to operate control sources such as motors, solenoids and valve based actuators. The DAC provides a voltage output which is then used by control modules to drive industrial motors. Standard analog output ranges provided by these programmable logic control (PLC) systems include: 5 V, 10 V, ± 5 V and ± 12 V.
The end application and user requirements determine the appropriate output range, so software programmability of the output range is a desirable function in many system designs. Furthermore force-sense of the output voltage, capacitive load stability even with long cables at the DAC outputs, and smaller packages which enable multi-channel systems, are all important factors in these applications. Motor drive applications require a high precision voltage output to precisely control the motor movements in factory automations. #FIG_A4D_D3G_5MB illustrates a simple voltage output module driving motors in an industrial CNC control application
Figure 9-1 Motor Drive Circuit