Datasheet

LTC2606/LTC2616/LTC2626
17
26061626fb
OPERATION
Figure 4. Typical LTC2606 Input Waveform—Programming DAC Output for Full Scale
ACK ACK
123456789123456789123456789123456789
2606 F05
ACK
START
X = DON’T CARE
STOP
FULL-SCALE VOLTAGE ZERO-SCALE VOLTAGE
SDA
A6 A5 A4 A3 A2 A1 A0
SCL
V
OUT
C2C3
C3 C2 C1 C0 X X X X
C1 C0 X X X X
ACK
COMMAND
D15 D14 D13 D12 D11 D10 D9 D8
MS DATA
D7 D6 D5 D4 D3 D2 D1 D0
LS DATA
A6 A5 A4 A3 A2 A1 A0 WR
SLAVE ADDRESS
Figure 5. Effects of Rail-to-Rail Operation on a DAC Transfer Curve. (a) Overall Transfer Function (b) Effect of Negative Offset for Codes Near Zero Scale (c) Effect of Positive Full-Scale Error for Codes Near Full Scale
2606 F05
INPUT CODE
(b)
OUTPUT
VOLTAGE
NEGATIVE
OFFSET
0V
32, 7680 65, 535
INPUT CODE
OUTPUT
VOLTAGE
(a)
V
REF
= V
CC
V
REF
= V
CC
(c)
INPUT CODE
OUTPUT VOLTAGE
POSITIVE FSE