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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

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Summary of Contents for IP-OPTODA16CH4

Page 1: ...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: ...ose in which it was delivered SBS Technologies Inc reserves the right to make any changes in the devices or device specifications contained herein at any time and without notice Customers are advised...

Page 3: ...r 10V Output Voltage Range 8 3 ID PROM CONTENTS 9 3 1 ID PROM Contents IP OPTODA16CH4 9 4 IP ADDRESSING 10 4 1 Channel Select Register 0x01 11 4 2 Status Register 0x03 12 4 3 Data Register 0x04 13 4 4...

Page 4: ...GURE 4 1 CHANSEL DAC CHANNEL SELECT REGISTER 11 FIGURE 4 2 STATREG DAC STATUS REGISTER 12 FIGURE 4 3 DATAREG DAC DATA REGISTER 13 FIGURE 4 4 LOADREG DAC LOAD REGISTER 13 FIGURE 6 1 JUMPER CONFIGURATIO...

Page 5: ...th unipolar and bipolar output voltage range The isolated DACs and the output buffers are powered by an on board DC DC converter Optocouplers are used for the DACs digital interfaces Each IP OPTODA16C...

Page 6: ...tion Data In ID PROM for gain and offset correction for each channel Output Current 4mA for each channel Load Capacitance 1nF typical Accuracy INL 4LSB typical after calibration Linearity DNL 0 5LSB M...

Page 7: ...f the DAC It is corrected by multiplying the data value by a correction factor The data correction values are obtained during factory calibration and are stored in the modules individual version of th...

Page 8: ...orrected digital value that should be sent to the DAC Value is the desired output value Gaincorr and Offsetcorr are the correction factors from the ID PROM Gaincorr and Offsetcorr correction factors a...

Page 9: ...board dependent 0x1D DAC1 Offset Ch 1 High Byte board dependent 0x1F DAC2 Offset Ch 2 Low Byte board dependent 0x21 DAC2 Offset Ch 2 High Byte board dependent 0x23 DAC3 Offset Ch 3 Low Byte board depe...

Page 10: ...All registers are cleared by assertion of IP_RESET Address Name Function Size 0x01 CHANSEL DAC Channel Select Register byte 0x03 STATUS DAC Status Register byte 0x04 DATAREG DAC Data Register word 0x...

Page 11: ...channel After that all 4 DAC outputs are updated according to the DAC internal data register of each channel Write access to the DAC Channel Select Register during active DACBUSY status is ignored and...

Page 12: ...1 VR Voltage Range flag Indicates the selected Voltage Range according to the jumper setting for the output voltage ranges Reading as 0 means 10V output range and binary two s complement as output cod...

Page 13: ...ommand should be the same 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Bit DAC value Bit Number Symbol Description Access Reset Value 15 0 This register contains the desired DAC conversion data value used...

Page 14: ...n 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 rang...

Page 15: ...ge range applies to all four DAC channels Jumper Configuration Voltage range 0V to 10V J1 1 2 installed Voltage range 10V J1 2 3 installed Industry Pack I O Interface Industry Pack logic Interface J1...

Page 16: ...Analog Output Connections IP OPTODA16CH4 7 2 Power Input Connections Pin Number Function 44 AGND 45 15V 46 AGND 47 15V 48 AGND 49 5V 50 AGND Figure 7 2 Power Input Connections IP OPTODA16CH4 The power...

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