DAC729JH BURR-BROWN [Burr-Brown Corporation], DAC729JH Datasheet - Page 10

• Manufacturer Part Number: DAC729JH
• Description: Ultra-High Resolution 18-BIT DIGITAL-TO-ANALOG CONVERTER
• Manufacturer: BURR-BROWN [Burr-Brown Corporation]

FIGURE 10. Using an External Op Amp with Buffer and
FIGURE 11. DAC729 Simplified Schematic.
10
11
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18
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1
2
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18-Bit
DAC
External Reference for 10V Output.
DAC729
Ref. In
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
From System
Reference
OPA602
OPA633
From System
Reference
R
L
10
SECOND MSB ADJUSTMENT (Pin 38)
1. Set Code = 11 0000 0000 0000 0000
2. Measure V
3. Set Code = 10 1111 1111 1111 1111
4. Measure V
5. Adjust 2nd MSB potentiometer to make difference +38 V.
6. Repeat steps 1 through 5 to confirm.
MSB ADJUSTMENT (Pin 39)
1. Set Code = 10 0000 0000 0000 0000
2. Measure V
3. Set Code = 01 1111 1111 1111 1111
4. Measure V
5. Adjust the MSB potentiometer to make difference +38 V.
6. Repeat steps 1 through 5 to confirm.
APPLICATIONS
The DAC729 is the DAC of choice for applications requir-
ing very high resolution, accuracy, and wide dynamic range.
DIGITAL AUDIO
The excellent linearity and differential linearity are ideal for
PCM professional audio and waveform generation applica-
tions.
OUT
OUT
OUT
OUT
and record the difference.
and record the difference.