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DAC7664 Datasheet(PDF) 6 Page - Texas Instruments |
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DAC7664 Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 33 page  DAC7664 SBAS271 − MARCH 2004 www.ti.com 6 Terminal Functions PIN NAME DESCRIPTION 1 NC No Connection 2 NC No Connection 3 VSS Analog –5V power supply or 0V single supply 4 VCC Analog +5V power supply 5 VOUTA DAC A output voltage 6 VOUTA Sense 1 Connect to VOUTA for unipolar mode 7 VOUTA Sense 2 Connect to VOUTA for bipolar mode 8 AGND Analog ground 9 DGND Digital ground 10 VDD Digital +5V power supply 11 IOVDD Interface power supply 12 DB15 Data bit 15 (MSB) 13 DB14 Data bit 14 14 DB13 Data bit 13 15 NC No connection 16 NC No connection 17 DB12 Data bit 12 18 DB11 Data bit 11 19 DB10 Data bit 10 20 DB9 Data bit 9 21 DB8 Data bit 8 22 DB7 Data bit 7 23 DB6 Data bit 6 24 DB5 Data bit 5 25 DB4 Data bit 4 26 DB3 Data bit 3 27 DB2 Data bit 2 28 DB1 Data bit 1 29 DB0 Data bit 0 30 CS Chip select, active low 31 R/W Enabled by CS; controls the data read and data write. 32 LDAC DAC register load control, rising edge triggered. 33 NC No connection 34 NC No connection 35 A1 Enabled by CS; in combination with A0, selects the individual DAC input registers. 36 A0 Enabled by CS; in combination with A1, selects the individual DAC input registers. 37 RST Reset, rising edge triggered. Depending on the state of RSTSEL, the DAC registers are set to either mid-scale or zero. PIN NAME DESCRIPTION 38 RSTSEL Reset select. Determines the action of RST. If high, an RST command sets the DAC registers to mid-scale (8000h). If low, an RST command sets the DAC registers to zero (0000h). 39 NC No connection 40 NC No connection 41 NC No connection 42 NC No connection 43 NC No connection 44 VOUTD Sense 2 Connect to VOUTD for bipolar mode 45 VOUTD Sense 1 Connect to VOUTD for unipolar mode 46 VOUTD DAC D output 47 NC No connection 48 NC No connection 49 Offset D Range 1 Connect to Offset D Range 2 for unipolar mode 50 Offset D Range 2 Connect to Offset D Range 1 for unipolar mode 51 Offset C Range 2 Connect to Offset C Range 1 for unipolar mode 52 Offset C Range 1 Connect to Offset C Range 2 for unipolar mode 53 VOUTC Sense 2 Connect to VOUTC for bipolar mode 54 VOUTC Sense 1 Connect to VOUTC for unipolar mode 55 VOUTC DAC C output 56 REF GND Reference ground 57 REF GND Reference ground 58 VOUTB DAC B output 59 VOUTB Sense 1 Connect to VOUTB for unipolar mode 60 VOUTB Sense 2 Connect to VOUTB for bipolar mode 61 Offset B Range 1 Connect to Offset B Range 2 for unipolar mode 62 Offset B Range 2 Connect to Offset B Range 1 for unipolar mode 63 Offset A Range 2 Connect to Offset A Range 1 for unipolar mode 64 Offset A Range 1 Connect to Offset A Range 2 for unipolar mode |
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