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AD7835ASZ-REEL Datasheet(PDF) 10 Page - Analog Devices |
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AD7835ASZ-REEL Datasheet(HTML) 10 Page - Analog Devices |
10 / 28 page AD7834/AD7835 Rev. D | Page 10 of 28 Pin No. MQFP Pin No. PLCC Pin Mnemonic Description 16 to 29 22 to 35 DB0 to DB13 Parallel Data Inputs. The AD7835 can accept a straight 14-bit parallel word on DB0 to DB13, where DB13 is the MSB and the BYSHF input is hardwired to a logic high. Alternatively for byte loading, the bottom eight data inputs, DB0 to DB7, are used for data loading, and the top six data inputs, DB8 to DB13, should be hardwired to a logic low. The BYSHF control input selects whether 8 LSBs or 6 MSBs of data are being loaded into the device. 32 38 DSGB Device Sense Ground B Input. Used in conjunction with the CLR input for power-on protection of the DACs. When CLR is low, DAC outputs VOUT3 and VOUT4 are forced to the potential on the DSGB pin. 36, 35 42, 41 VREF(+)B, VREF(−)B Reference Inputs for DACs 3 and 4. These reference voltages are referred to AGND. 38 44 AGND Analog Ground. 39 1 VDD Positive Analog Power Supply: 15 V ± 5% or 12 V ± 5%. 40 2 VSS Negative Analog Power Supply: −15 V ± 5% or −12 V ± 5%. 42, 43 4, 5 VREF(+)A, VREF(−)A Reference Inputs for DAC 1 and DAC 2. These reference voltages are referred to AGND. |
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