LTC2755 Linear Technology, LTC2755 Datasheet - Page 17

• Manufacturer Part Number: LTC2755
• Description: Quad Current Output 12-/14-/16-Bit SoftSpan DACs
• Manufacturer: Linear Technology

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OPERATION—EXAMPLES
1. Load ±5V range with the output at 0V. Note that since span and code are updated together, the output, if started at
2. Load ±10V range with the output at 5V, changing to –5V.
3. Write and update midscale code in 0V to 5V range (V
0V, will stay there. The 16-Bit DAC code is shown in hex for compactness.
and DAC registers before updating.
READ = LOW
READ = LOW
SPAN I/O
DATA I/O
SPAN I/O
DATA I/O
DATA I/O
DATA I/O
OUTPUT
INPUT
INPUT
V
INPUT
INPUT
V
INPUT
V
OUTX
UPD
OUTX
READ
UPD
OUTX
WR
D/S
UPD
WR
D/S
WR
D/S
0V (0000
HI-Z
OV
OV
H
IN 0V TO 5V RANGE)
8000
C000
H
H
HI-Z
010
INPUT REGISTER
8000
OUT
H
011
= 2.5V) using readback to check the contents of the input
DAC REGISTER
8000
H
0000
UPDATE (5V)
H
0V (8000
+5V
UPDATE
(±5V RANGE, V
H
UPDATE (–5V)
IN ±5V RANGE)
UPDATE (2.5V)
4000
OUT
H
= 0V)
2755 TD03
2755 TD04
+2.5V
2755 TD05
–5V
LTC2755
17
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