Electronic Components Datasheet Search |
|
DAC813JPG4 Datasheet(PDF) 10 Page - Texas Instruments |
|
DAC813JPG4 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 16 page ® 10 DAC813 INTERFACING MULTIPLE DAC813s IN 8-BIT SYSTEMS Many applications, such as automatic test systems, require that the outputs of several D/A converters be updated simul- taneously. The interface shown in Figure 9 uses a 74LSB138 decoder to decode a set of eight adjacent addresses to load the input latches of four DAC813s. The example uses a right-justified data format. A ninth address using A3 causes all DAC813s to be updated simultaneously. If a certain DAC813 is always loaded last (for instance, D/A #4), A3 is not needed, saving 8 address spaces for other uses. Incorporate A3 into the base address decoder, remove the inverter, connect the common LDAC line to LLSB of D/A #4, and connect D1 of the 74LS138 to +5V. 12- AND 16-BIT MICROCOMPUTER INTERFACE For this application the input latch enable lines, LMSB and LLSB, are tied low, causing the latches to be transparent. The D/A latch, and therefore DAC813, is selected by the address decoder and strobed by WR. Be sure and read the CAUTION statement in the LOGIC INPUT COMPATIBILITY section. FIGURE 6. Output Amplifier Voltage Range Scaling Circuit. 25k Ω 25k Ω 24.9k Ω 9 3 2 4 BPO 20V 20V V OUT ±5V 6 200 pot or 100 fixed Ω Ω ±5V RANGE 25k Ω 25k Ω 24.9k Ω 9 3 2 4 BPO 20V 20V V OUT ±10V V REF OUT 6 200 pot or 100 fixed Ω Ω ±10V RANGE 25k Ω 25k Ω 24.9k Ω 9 3 2 4 BPO 20V 20V V OUT 0 to +10V 0 TO +10V RANGE NC NC I DAC I DAC I DAC 5 5 V REF OUT 5 ACOM ACOM ACOM FIGURE 8. Right-Justified Data Bus Interface. D0 D8 D1 D9 D2 D10 D3 D11 D4 D5 D6 D7 17 25 18 26 19 27 20 28 21 22 23 24 DB0 DB1 DB2 DB3 Reset Circuitry DB4 DB5 DB6 DB7 WR A A 1 0 Base Address Decoder A A 15 2 11 12 14 15 13 WR LDAC LMSB LLSB Reset X X X X D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Right-Justified FIGURE 7. 12-Bit Data Format for 8-Bit Systems. |
Similar Part No. - DAC813JPG4 |
|
Similar Description - DAC813JPG4 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |