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====== AD5696R/AD5695R/AD5694R Quick Start Guide ======
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**Quad, 16-/14-/12-Bit, Voltage Output DACs with a 2 ppm/ºC Reference, I<sup>2</sup>C Interface**
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{{ :resources:quick-start:ad5696r_block_diagram.png? 405x300 |}}
<WRAP centeralign>//Figure 1. Functional Block Diagram//</WRAP>

===== Features =====
  * High relative accuracy (INL): ±2 LSB maximum (16-bit [[adi>AD5696R|AD5696R]]) 
  * Low drift 2.5 V on-chip reference: 2 ppm/°C typical temperature coefficient
  * Tiny 3 mm × 3 mm 16-lead LFCSP  or 16-lead TSSOP package
  * Total unadjusted error (TUE): 0.1% of FSR maximum
  * Offset error: 1.5 mV maximum
  * Gain error: 0.1% of FSR maximum
  * High drive capability: 20 mA, 0.5 V  from supply rails 
  * User selectable gain of 1 or 2 (GAIN pin)
  * Reset to zero scale or midscale (RSTSEL pin)
  * 1.8 V logic compatibility
  * 400 kHz I<sup>2</sup>C interface
  * 2.7 V to 5.5 V power supply
  * −40°C to +105°C temperature range


===== Pin Configurations =====
<WRAP column 40%>{{ :resources:quick-start:16lfcsppinout.png? }} </WRAP>
<WRAP column 40%>{{ :resources:quick-start:16tssoppinout.png? }} </WRAP>
<WRAP clear></WRAP>
<WRAP column 40%><WRAP centeralign>//Figure 2. 16-Lead LFCSP//</WRAP></WRAP>
<WRAP column 40%><WRAP centeralign>//Figure 3. 16-Lead TSSOP//</WRAP></WRAP>
<WRAP clear></WRAP>
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** Table 1. Function Descriptions for Quick Start **
^   Mnemonic     ^ Description      ^ 
|V<sub>OUT</sub>A  | Analog output voltage from DAC A.                     |
|V<sub>OUT</sub>B  | Analog output voltage from DAC B.                     |
|V<sub>OUT</sub>C  | Analog output voltage from DAC A.                     |
|V<sub>OUT</sub>D  | Analog output voltage from DAC D.                     |
|SDA    | Connect to serial interface.                                     |
|SCL    | Connect to serial interface.                                     |
|A1     | Address pin.                                                     |
|A0     | Address pin.                                                     |
|V<sub>REF</sub>   | No connect.                                                      |
|V<sub>DD</sub>    | Connect to 5 V supply. Decouple with 10 μF and 0.1 μF capacitors.|
|GND    | Connect to ground.                                               |
|<m>overline{LDAC}</m>   | Tie low.                                        |
|RSTSEL | Tie to GND to power up to zero scale.                            |
|GAIN   | Tie to GND. DAC outputs have a span from 0 V to V<sub>REF</sub>. |
|<m>overline {RESET}</m>  | Tie high.                                      |
|V<sub>LOGIC</sub> | Connect to serial interface supply voltage.           |

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===== Shift Register Contents =====
{{ :resources:quick-start:shift_register_contents_16-bit.png?800 }}
<WRAP centeralign>//Figure 4. Shift Register Contents//</WRAP>

** Table 2. Command Definitions **
^Command^^^^ ^
^C3     ^C2     ^C1     ^C0     ^Description ^
|0      |0      |0      |0      |No operation|
|0	|0	|0	|1	|Write to Input Register n (dependent on LDAC)|
|0	|0	|1	|0	|Update DAC Register n with contents of Input Register n|
|0	|0	|1	|1	|Write to and update DAC Channel n|
|0	|1	|0	|0	|Power down/power up DAC |
|0	|1	|0	|1	|Hardware <m>overline{LDAC}</m> mask register|
|0	|1	|1	|0	|Software reset (power-on reset)|
|0	|1	|1	|1	|Internal reference setup register|
|1	|0	|0	|0	|Reserved|
|1	|0	|0	|1	|Reserved|
|1	|0	|1	|0	|Reserved|
|…	|…	|…	|…	|Reserved|
|1	|1	|1	|1	|Reserved|
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===== Transfer Function =====
 <m>V_OUT = V_REF * Gain delim{[}{D/2^N}{]}</m>\\
where:\\ 
//D// is the decimal equivalent. \\ 
//N// is the number of bits. \\ 
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==== Simple Write Example 1 ====
<note tip>To Update Channel A, write the following over the serial interface:
0001 XXX1 1000000000000000 (four command bits, four address bits, 16 data bits for the [[adi>AD5696R|AD5696R]]).
This updates Channel A to midscale. GAIN = 1, V<sub>OUT</sub>A = 1.25 V.</note>
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{{  :resources:tools-software:ad5686r:example_write_1.png?  630X144  |}}
<WRAP centeralign>//Figure 5. Simple Write—Update Channel A//</WRAP>
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==== Simple Write: Example 2 ====

<note tip>To update Channel B, write the following over the serial interface: 0001 XX1X 1000000000000000.
This updates Channel B to midscale. GAIN = 1, V<sub>OUT</sub>B = 1.25 V.</note>
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{{ :resources:tools-software:ad5686r:example_write_2.png? 630X144 |}}
<WRAP centeralign>//Figure 6. Simple Write—Update Channel B//</WRAP>
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==== Simple Write: Example 3 ====
<note tip>To update both Channel A and Channel B, write the following: 0001 XX11 1111111111111111.
This updates both channels to full scale. GAIN = 1, V<sub>OUT</sub>B = 2.5 V, V<sub>OUT</sub>A = 2.5 V.
</note>

{{ :resources:tools-software:ad5686r:example_write_3.png? 630X144 |}}
<WRAP centeralign>//Figure 7. Simple Write—Update Channel A and Channel B//</WRAP>
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I<sup>2</sup>C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors).
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