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DAC8812 Datasheet(PDF) 3 Page - Texas Instruments |
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DAC8812 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 29 page 1 RFBA 16 CLK 2 VREFA 15 LDAC 3 IOUTA 14 MSB 4 AGNDA 13 VDD 5 AGNDB 12 DGND 6 IOUTB 11 CS 7 VREFB 10 RS 8 RFBB 9 SDI DAC8812 www.ti.com SBAS349C – AUGUST 2005 – REVISED NOVEMBER 2015 5 Device Comparison Table DEVICE MAXIMUM RELATIVE ACCURACY (LSB) DAC8812C ±1 DAC8812B ±2 6 Pin Configuration and Functions PW Package 16-Pin TSSOP Top View Pin Functions PIN I/O DESCRIPTION NO. NAME 1 RFBA I Establish voltage output for DAC A by connecting to external amplifier output. 2 VREFA I DAC A reference voltage input pin. Establishes DAC A full-scale output voltage. Can be tied to VDD pin. 3 IOUTA O DAC A current output 4 AGNDA — DAC A analog ground 5 AGNDB — DAC B analog ground 6 IOUTB O DAC B current output 7 VREFB I DAC B reference voltage input pin. Establishes DAC B full-scale output voltage. Can be tied to VDD pin. 8 RFBB I Establish voltage output for DAC B by connecting to external amplifier output. 9 SDI I Serial data input; data loads directly into the shift register. Reset pin; active-low input. Input registers and DAC registers are set to all 0s or midscale. Register data = 10 RS I 0x0000 when MSB = 0. Register data = 0x8000 when MSB = 1 for DAC8812. Chip-select; active-low input. Disables shift register loading when high. Transfers serial register data to input 11 CS I register when CS goes high. Does not affect LDAC operation. 12 DGND — Digital ground MSB bit sets output to either 0 or midscale during a RESET pulse (RS) or at system power-on. Output 14 MSB I equals zero scale when MSB = 0 and midscale when MSB = 1. MSB pin can be permanently tied to ground or VDD. 13 VDD I Positive power-supply input. Specified range of operation 2.7 V to 5.5 V. Load DAC register strobe; level-sensitive active-low. Transfers all input register data to the DAC registers. 15 LDAC I Asynchronous active-low input. See Table 2 for operation. 16 CLK I Clock input. Positive edge clocks data into shift register. Copyright © 2005–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: DAC8812 |
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Similar Description - DAC8812_15 |
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