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TLC5615I Datasheet(PDF) 8 Page - Texas Instruments |
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TLC5615I Datasheet(HTML) 8 Page - Texas Instruments |
8 / 21 page www.ti.com APPLICATION INFORMATION GENERAL FUNCTION _ + Resistor String DAC 5 V 0.1 µF AGND VDD OUT REFIN DIN SCLK CS DOUT R R _ + 2 V REFIN 1023 1024 2 V REFIN 513 1024 2 V REFIN 512 1024 + V REFIN 2 V REFIN 511 1024 2 V REFIN 1 1024 TLC5615C, TLC5615I SLAS142E – OCTOBER 1996 – REVISED JUNE 2007 The TLC5615 uses a resistor string network buffered with an op amp in a fixed gain of 2 to convert 10-bit digital data to analog voltage levels (see functional block diagram and Figure 9). The output of the TLC5615 is the same polarity as the reference input (see Table 1). An internal circuit resets the DAC register to all zeros on power up. Figure 9. TLC5615 Typical Operating Circuit Table 1. Binary Code Table (0V to 2VREFINOutput), Gain = 2 INPUT(1) OUTPUT 1111 1111 11(00) : : 1000 0000 01(00) 1000 0000 00(00) 0111 1111 11(00) : : 0000 0000 01(00) 0000 0000 00(00) 0 V (1) A 10-bit data word with two bits below the LSB bit (sub-LSB) with 0 values must be written since the DAC input latch is 12 bits wide. 8 Submit Documentation Feedback |
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