DAC1201D125HL NXP [NXP Semiconductors], DAC1201D125HL Datasheet - Page 20

• Manufacturer Part Number: DAC1201D125HL
• Description: Dual 12-bit DAC, up to 125 Msps
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
DAC1201D125_1
Product data sheet
10.7.1 Differential output using transformer
10.7.2 Single-ended output
10.8 Power-down function
The use of a differential-coupled transformer output (see
distortion performance, and it helps to match the impedance and provides electrical
isolation.
The center tap is grounded to allow the DC current flow to/from both outputs. If the center
tap is open, the differential resistor must be replaced by two resistors connected to
ground.
Using a single load resistor on one current output will provide a unipolar output range,
typically from 0 V to 0.5 V with a 20 mA full-scale current at a 50
The resistor on the other current output is 25 .
The DAC1201D125 has a power-down function to reduce the power consumption when it
is not active.
Table 9.
PWD
LOW
HIGH
Fig 21. Differential output with transformer
Fig 22. Single-ended output
Power-down
Rev. 01 — 27 November 2008
IOUTAN/
IOUTAP/
IOUTBP
IOUTBN
IOUTAP/
IOUTAN/
IOUTBP
IOUTBN
Device function
active
not active
20 mA
50
25
Z = 50
R diff
T1-1T
1:1
50
001aai935
Dual 12-bit DAC, up to 125 Msps
Figure
0 V to 0.5 V
R load
001aai936
DAC1201D125
Power dissipation (typ)
185 mW
16.5 mW
21) provides optimum
load.
© NXP B.V. 2008. All rights reserved.
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