TIP840 - powerbridge.de
Contents
1. Offset Function Contents 0x01 ASCII T 0x49 0x03 ASCII P 0x50 0x05 ASCII A 0x41 0x07 ASCII C 0x43 0x09 Manufacturer ID OxB3 0x0B Model Number 0x0D 0x0D Revision 0x10 0x0F Reserved 0x00 0x11 Driver ID Low Byte 0x00 0x13 Driver ID High Byte 0x00 0x15 Number of bytes used 0x15 0x17 CRC Board dependent 0x19 Board Option Ox0A TIP840 10 0x0B TIP840 11 0x14 TIP840 20 0x15 TIP840 21 0x1B ADC Offset gain 1 Board dependent 0x1D ADC Offset gain 2 10 Board dependent Ox1F ADC Offset gain 4 100 Board dependent 0x21 ADC Offset gain 8 Board dependent 0x23 ADC Gain gain 1 Board dependent 0x25 ADC Gain gain 2 10 Board dependent 0x27 ADC Gain gain 4 100 Board dependent 0x29 ADC Gain gain 8 Board dependent TIP840 User Manual Issue 1 7 Figure 4 1 ID ROM Content Page 8 of 14 5 IP Addressing 5 11 O Addressing The complete register set of the TIP840 is accessible in the IP I O space TEWS amp TECHNOLOGIES Offset Symbol Description Size Bit 0x00 ADC_CSR ADC Control and Status Register 16 0x02 ADC_CON _ ADC Convert Register 16 0x04 ADC_DAT ADC Data Register 16 0x41 INT_VEC Interrupt Vector Register 8 TIP840 User Manual Issue 1 7 Figure 5 1 Register Set Page 9 of 14 TEWS lt TECHNOLOGIES 5 2 ADC Control and Status Register The ADC Control and Status Register ADC_CSR2. bits 0 8 is used to select an input channel the gain and the mode for the next data conversion The status of the ADC can be obtained by reading bits 14 15 Bit Symbol Description Access Reset Value 15 ADC ADC Busy Status R Busy 0 ADC conversion is done 1 ADC conversion is in progress If interrupt mode is disabled this bit must be read as 0 before the data can be read from the ADC Data Register 14 Settle Settling Time Busy Status R Busy 0 Settling time is done 1 Settling time is not yet expired after writing to the ADC_CSR If interrupt mode is disabled and automatic settling time mode is disabled this bit must be read as 0 before the data conversion is started using the ADC Convert Register If interrupt mode is disabled and automatic settling time mode is enabled this bit must be read as 0 before the data can be read from the ADC Data Register 13 9 Not used Undefined for reads Write as 0 8 INT Interrupt Mode Control W ENA 0 Disable interrupts 1 Enable interrupts If automatic settling control mode is enabled an interrupt is generated when the data conversion is done If automatic settling control mode is disabled an interrupt is generated when the settling time has expired and another one when the data conversion is done 7 ASTCE Automatic Settling Time Mode Control W 0 Automatic settling time mode is disabled 1 Automatic settling time mode is enabled If autom
3. ADC Control and Status Register 5 3 ADC Convert Register Bit Symbol Description Access Reset Value 15 0 Used to start a data conversion with automatic settling time mode disabled By writing any value the data conversion is started This mode is useful if a single input channel should be sampled with a maximum data rate W Figure 5 3 ADC Convert Register In this mode it is in the responsibility of the user to make sure that the required accuracy of the data is not affected by the required settling time after a change of gain or input channel TIP840 User Manual Issue 1 7 Page 11 of 14 5 4 ADC Data Register The ADC Data Register ADC_DAT contains the converted data value TEWS amp TECHNOLOGIES Bit Symbol Description Access Reset Value 15 11 S 12 bit ADC data sign extended in 2 s complement R 10 0 D Data bits 11 0 hold the 12 bit ADC data value Data bit 11 sign bit is extended into bits 12 to 15 by hardware Figure 5 4 ADC Data Register ADC Data Analog Input Voltage Register Value 0x0000 0 OV 0x07FF 2047 x 1LSB 9 99512V OxF800 2048 x 1LSB 10V OxFFFF 1 x 1LSB 4 88mV Figure 5 5 ADC Data Coding 5 5 Interrupt Vector Register Bit Symbol Description Access Reset Value 7 0 Register must be loaded with the interrupt vector value when interrupt
4. i si iann aaa andaa anaa aaa aaa aa aeaa aaa aaa aaaea aiaa 13 6 2 Miscellaneous Output Connections U U u u u u u 14 TIP840 User Manual Issue 1 7 Page 3 of 14 TEWS S TECHNOLOGIES Table of Figures FIGURE 1 1 BLOCK DIAGRAM a eens center cee ceae eee eeeeeeeeeeeeeseeeseeeseeeseeeseaeeeaeesaaesaesaaeesaeseaeeeaeeeeeses 5 FIGURE 2 1 TECHNICAL SPECIFICATION L L S n nun 6 FIGURE 4 1 ID ROM CONTENT EE 8 FIGURE 5 1 2 REGISTER EE 9 FIGURE 5 2 ADC CONTROL AND STATUS REGISTER L 11 FIGURE 5 3 ADG CONVERT REGISTER uu a eens eens eee sent sees eee a aaa a aaa 11 FIGURE 5 43 ADC DATAREGIST EE 12 FIGURE 5 5 ADC DATA CODING krer cece eee enne cere eect sees teas cage cae seaeseaeesaaeseaeseaeseaesenesseeeseeeseeeeaesnaeenaees 12 FIGURE 5 6 INTERRUPT VECTOR REGISTER L n 12 FIGURE 6 1 ANALOG INPUT CONNECTIONS AAA 13 FIGURE 6 2 MISCELLANEOUS OUTPUT CONNECTIONS L a 14 TIP840 User Manual Issue 1 7 Page 4 of 14 TEWS S TECHNOLOGIES 1 Product Description The TIP840 is an IndustryPack compatible module and provides 8 16 single ended channels of 12 bit A D conversion The data acquisition and conversion time is up to 10us without channel gain change and up to 62us with channel gain change The input multiplexer offers analog overvoltage protection of up to 70Vpp A programmable gain amplifi
5. TEWS lt The Embedded LO Company TECHNOLOGIES TIP840 16 8 Channel 12 Bit ADC Version 1 2 User Manual Issue 1 7 April 2004 D75840800 TEWS TECHNOLOGIES GmbH TEWS TECHNOLOGQIES LLC Am Bahnhof 7 25469 Halstenbek Germany 1 E Liberty Street Sixth Floor Reno Nevada 89504 USA Phone 49 0 4101 4058 0 Fax 49 0 4101 4058 19 Phone 1 775 686 6077 Fax 1 775 686 6024 e mail info tews com www tews com e mail usasales tews com www tews com TIP840 10 8 single ended channel 12 bit ADC gain 1 10 100 TIP840 11 8 single ended channel 12 bit ADC gain 1 2 4 8 TIP840 20 16 single ended 8 differential channel 12 bit ADC gain 1 10 100 TIP840 21 16 single ended 8 differential channel 12 bit ADC gain 1 2 4 8 TEWS amp TECHNOLOGIES This document contains information which is proprietary to TEWS TECHNOLOGIES GmbH Any reproduction without written permission is forbidden TEWS TECHNOLOGIES GmbH has made any effort to ensure that this manual is accurate and complete However TEWS TECHNOLOGIES GmbH reserves the right to change the product described in this document at any time without notice TEWS TECHNOLOGIES GmbH is not liable for any damage arising out of the application or use of the device described herein Style Conventions Hexadecimal characters are specified with prefix Ox i e 0x029E that means hexadecimal value 029E For signals on hardware products an Ac
6. atic settling time mode is disabled the data conversion must be initiated by writing to the ADC Conversion Register when the settling time has expired If automatic settling time mode is enabled the data conversion is initiated automatically by hardware after the settling time has expired The settling time is required for the multiplexed analog input path and gain amplifier 6 5 G1 GO ADC Gain Selection for the ADC input amplifier W TIP840 10 20 TIP840 11 21 G1G0 Gain Range G1G0 Gain Range 00 1 10V 00 1 10V 01 10 1V 01 2 5V 10 100 0 1V 10 4 2 5V 11 8 1 25V TIP840 User Manual Issue 1 7 Page 10 of 14 TEWS amp TECHNOLOGIES Bit Symbol Description Access Reset Value DIF Differential Mode Control 0 Single ended mode 1 Differential mode TIP840 10 11 board options only support single ended mode TIP840 20 21 board options support channels 1 to 16 in single ended mode and channels 1 to 8 in differential mode channels 9 to 16 are used as input for differential channels 1 to 8 W 3 0 CS 3 0 Input Channel Selection Input channel for the next data conversion Single Ended Differential CS 3 0 Channel CS 3 0 Channel 0000 1 0000 1 1111 16 0111 8 For TIP840 10 11 board options only channel 1 to 8 for single ended mode can be selected Figure 5 2
7. ed in the least significant 12 bit of a 16 bit data word The sign bit is extended by hardware into the upper 4 bit of the 16 word For this reason the data value can be directly used in 16 bit integer arithmetic as two s complement value In multiplexed analog input systems a settling time must expire before the data can be converted after the change of the input channel This settling time depends on the programmed gain The TIP840 module has an Automatic Settling Time Control mode If this mode is enabled a write to the ADC Control and Status Register for changing the input channel or gain initiates a data conversion automatically after the settling time has expired The absolute accuracy of the module is increased by the possibility of software correction using factory calibration factors stored in the individual ID ROM space of the module 3 1 Data Correction The basic formula for correcting any ADC reading is Value Reading 1 Gainer 8192 Offset 4 Value is the corrected result Reading is the data read from the ADC Data Register Gainer and OffSetcorr are the correction factors from the boards ID ROM space They are stored for each for the possible gains Floating point arithmetic or scaled integer arithmetic is necessary to avoid rounding error while computing above formula TIP840 User Manual Issue 1 7 Page 7 of 14 4 ID ROM Content TEWS amp TECHNOLOGIES
8. er allows gains of 1 10 100 or 1 2 4 8 The full scale input range is 10V An interrupt can be generated at end of conversion supporting an 8 bit vector Each TIP840 is factory calibrated The calibration information is stored in the Identification ROM unique to each IP PGA 16 8 A Channel gain E Input gain 1 2 4 8 Multiplexer Decoder 8 a 2 Industry Pack I O Interface Figure 1 1 Block Diagram TIP840 User Manual Issue 1 7 Page 5 of 14 TEWS amp TECHNOLOGIES Technical Specification IP Interface Interface Single Size IndustryPack Logic Interface compliant to ANSI VITA 4 1995 ID ROM Data Format UO Space Used with no wait states Memory Space Not used Interrupts INTREQ0O used by A D conversion DMA Not supported Clock Rate 8 MHz Module Type Type UO Interface Analog Inputs TIP840 20 21 16 single ended channels or 8 differential channels TIP840 10 11 8 single ended channels Input Gain Amplifier TIP840 10 20 programmable for gain 1 10 100 TIP840 11 21 programmable for gain 1 2 4 8 Input Voltage Range for TIP840 10 20 for TIP840 1 1 21 10V gain 1 10V gain 1 1V gain 10 5V gain 2 0 1V gain 100 2 5V gain 4 1 25V gain 8 Note The module accuracy is guarantied at the 10V input voltage range only for voltage range of 9 6V Input Overvoltage Protection up
9. s shall be used with the TIP840 R W Figure 5 6 Interrupt Vector Register TIP840 User Manual Issue 1 7 Page 12 of 14 6 Pin Assignment I O Connector 6 1 Analog Input Connections Pin Mode Single Ended 2 4 5 6 7 ADC Input 3 8 22 ADC Input 16 23 ADC Input 8 24 AGND 10 11 ADC Input 4 12 AGND E 4 E 16 7 18 E 20 I ADC Input16 ADC Input8 Mode Differential ADC Input 1 ADC Input 1 AGND ADC Input 2 ADC Input 2 AGND ADC Input 3 ADC Input 3 AGND ADC Input 4 ADC Input 4 AGND ADC Input 5 ADC Input 5 AGND ADC Input 6 ADC Input 6 AGND ADC Input 7 ADC Input 7 AGND ADC Input 8 ADC Input 8 AGND Figure 6 1 Analog Input Connections TEWS S TECHNOLOGIES The TIP840 10 and TIP840 11 board options provide 8 single ended channels ADC Input 1 to ADC Input 8 only TIP840 User Manual Issue 1 7 Page 13 of 14 6 2 Miscellaneous Output Connections TIP840 User Manual Issue 1 7 Pin 44 45 46 47 48 49 50 Function GND 12V GND 12V GND 5V GND Figure 6 2 Miscellaneous Output Connections TEWS amp TECHNOLOGIES Page 14 of 14
10. tive Low is represented by the signal name with following i e IP_RESET Access terms are described as W Write Only R Read Only R W Read Write R C Read Clear R S Read Set 1994 2004 by TEWS TECHNOLOGIES GmbH Issue Description Date 1 0 First Issue June 1994 1 1 Change of settling time December 1994 1 2 Change of settling time February 1996 1 3 General Revision April 2003 1 4 Addition Technical Specification April 2003 1 5 Correction Offset UO Addressing October 2003 1 6 New Hardware Version 1 2 November 2003 1 7 Addition Technical Specification April 2004 TIP840 User Manual Issue 1 7 Page 2 of 14 TEWS S TECHNOLOGIES Table of Contents 1 PRODUCT DESCRIPTION 5 2 TECHNICAL SPECIFICATION u u U U uu 6 3 FUNCTIONAL DESCRIPTION U 7 3 1 Data el EE 7 A IDROMGONTENTu u S u eege 8 5 IPADDRESSING u u III IIIa ananena nananana nananana aniaui a naaa 9 5 1 VO Addressinig E 9 5 2 ADC Control and Status Register U U u u u u 10 5 3 ADG CGonvert Register uyu uU EENEG 11 5 4 ADG Data R egistl eruu uu EE 12 5 5 Interrupt Vector Register SEENEN EENS 12 6 PIN ASSIGNMENT UO CONNECTOR 13 6 1 Analog Input Connections
11. to 70Vpp Input ADC 12 bit 10us sampling time ADS7804 Input Path Settling Time 52us appr Calibration Data Gain and offset correction values stored in ID ROM space Wait States ID ROM No wait states Interface Connector 50 conductor flat cable Physical Data Power Requirements 180mA typical 5V DC 10mA typical 12V DC 10mA typical 12V DC Temperature Range Operating 40 C to 85 C Storage 40 C to 125 C MTBF TIP840 10 11 638000 h TIP840 20 21 579000 h Humidity 5 95 non condensing TIP840 User Manual Issue 1 7 Figure 2 1 Technical Specification Page 6 of 14 TEWS S TECHNOLOGIES 3 Functional Description The TIP840 20 and TIP840 21 board options provide 16 single ended or 8 differential multiplexed analog inputs The desired input channel and the mode single ended or differential are selected by programming the input multiplexer The TIP840 10 and TIP840 11 board options provide 8 single ended multiplexed analog inputs as a low cost option A software programmable gain amplifier with gain settings of 1 10 and 100 for the TIP840 10 and TIP840 20 and 1 2 4 and 8 for the TIP840 11 and TIP840 21 allows a direct connection of a wide range of sensors and instrumentation The maximum analog input voltage range is 10V at a gain of 1 The ADC is a 12 bit ADS7804 with a minimum sampling rate of 100 kHz The 12 data bit are align
Download Pdf Manuals
Related Search