Summary of Contents for SBS Technologies IP-OPTODA16CH4
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Page 1: User Manual
IP-OPTODA16CH4 4 Channels of Optically Isolated 16-Bit D/A Conversion User Manual ©SBS Technologies, Inc. Subject to change without notice. Part Number: 89004589 Rev. 1.0 20030410... - Page 2 Technologies, Inc. This document is meant solely for the FAX: (651) 905-4701 purpose in which it was delivered. Email: support.commercial@sbs.com SBS Technologies, Inc. reserves the right to make any changes in the devices or device specifications contained http://www.sbs.com herein at any time and without notice. Customers are advised to verify all information contained in this document.
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Page 3: Table Of Contents
DAC Correction Formula for 0V to +10V Output Voltage Range ........7 2.2.2 DAC Correction Formula for +/-10V Output Voltage Range ..........8 ID PROM CONTENTS....................9 3.1 ID PROM Contents IP-OPTODA16CH4 ..................9 IP ADDRESSING ..................... 10 4.1 Channel Select Register (0x01)....................11 4.2 Status Register (0x03)........................12 4.3 Data Register (0x04) ........................ - Page 4 FIGURE 4-3: DATAREG DAC DATA REGISTER................... 13 FIGURE 4-4: LOADREG DAC LOAD REGISTER ..................13 FIGURE 6-1: JUMPER CONFIGURATION FOR OUTPUT VOLTAGE RANGE IP-OPTODA16CH4 .... 15 FIGURE 7-1: ANALOG OUTPUT CONNECTIONS IP-OPTODA16CH4 ............16 FIGURE 7-2: POWER INPUT CONNECTIONS IP-OPTODA16CH4.............. 16...
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Page 5: Product Description
1 Product Description The IP-OPTODA16CH4 is an IndustryPack® compatible module providing 4 channels of isolated 16 bit analog outputs. Settling time to 0.003%is typical 10µs. The programmable output voltage range is +/-10V or 0 to +10V selectable by jumper configuration. The DAC resets to 0V output voltage in both unipolar and bipolar output voltage range. -
Page 6: Technical Specification
2 Technical Specification IndustryPack® Logic Interface Logic Interface Size Single wide IP I/O Interface 50-conductor flat cable Analog Outputs 4 D/A channels Isolation All D/A channels are galvanically isolated from the IP interface Output Voltage Range +/-10V or 0V to 10V (selectable by jumper), common for all 4 channels Settling Time of DAC To 0.003%in 10µs typical... -
Page 7: Analog Output
2.1 Analog Output The IP-OPTODA16CH4 includes 4 channels of analog outputs with a resolution of 16 bits and a voltage range of +/-10V or 0V to +10V. The maximum output current for each channel is +/-4mA. Each channel has a settling time to 0.003%of typical 10µs. -
Page 8: Dac Correction Formula For +/-10V Output Voltage Range
2.2.2 DAC Correction Formula for +/-10V Output Voltage Range The basic formula for correcting bipolar DAC output value is: Data = Value * ( 1 - Gain / 131072 ) - Offset corr corr Data is the (corrected) digital value that should be sent to the DAC, Value is the desired output value, Gain and Offset are the correction factors from the ID PROM. -
Page 9: Id Prom Contents
Ch.3 Low Byte board dependent 0x35 DAC3 Gain Ch.3 High Byte board dependent 0x37 DAC4 Gain Ch.4 Low Byte board dependent 0x39 DAC4 Gain Ch.4 High Byte board dependent ..Not used ..0x3F 0x00 Figure 3-1: ID PROM Contents IP-OPTODA16CH4... -
Page 10: Ip Addressing
4 IP Addressing The IP-OPTODA16CH4 is controlled by a set of registers, which are directly accessible in the I/O address space of the IP. All registers are cleared by assertion of IP_RESET#. Address Name Function Size 0x01 CHANSEL DAC Channel Select Register... -
Page 11: Channel Select Register (0X01)
4.1 Channel Select Register (0x01) The DAC Channel Select Register is used to load conversion data to the DAC internal data register of a selected DAC channel. The DAC Data Register must be set up with the conversion data, before the write to the DAC Channel Select Register is performed. -
Page 12: Status Register (0X03)
4.2 Status Register (0x03) BUSY Bit Number Symbol Description Access Reset Value Always read as 0 Error flag Write access to the DAC Channel Select Register or DAC Load Register during active DACBUSY status is ignored and sets this flag to ‘1‘. -
Page 13: Data Register (0X04)
4.3 Data Register (0x04) The DAC Data Register contains the DAC conversion data, used by the DAC Channel Select command. A write access to the DAC Channel Select Register starts the serial data transfer to the DAC (and if selected the conversion into an analog value). Immediately after a write to the DAC Channel Select register, the DAC Data Register may be written with the next conversion data value. -
Page 14: Dac Data Coding
5 DAC Data Coding 5.1 Bipolar Output Mode If the DAC channels are configured for +/- 10V output voltage range by the corresponding jumper configuration the following DAC data coding applies: DATAREG OUTPUT 0x7FFF + Full-scale 0x8000 - Full-scale 0x0000 Midscale 5.2 Unipolar Output Mode If the DAC channels are configured for 0V to +10V output voltage range by the corresponding jumper... -
Page 15: Jumper Configuration
6 Jumper Configuration On the IP-OPTODA16CH4 the desired DAC output voltage range is configured by a 3-pin jumper field. The configured DAC output voltage range applies to all four DAC channels. Jumper Configuration: Voltage range 0V to +10V : J1 1-2 installed... -
Page 16: Ip I/O Connector
Function AGND -15V AGND +15V AGND AGND Figure 7-2: Power Input Connections IP-OPTODA16CH4 The power input connections are reserved for special versions of the card without on-board DC/DC converter. Do not supply any voltage to these pins for the IP-OPTODA16CH4.
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