LTC1669
4
1669fa
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Nonlinearity and monotonicity are defi ned from code 20 to code
1003 (full scale). See Applications Information.
The ● denotes specifi cations which apply over the full operating temperature
range, otherwise specifi cations are at T
A
= 25°C. V
CC
= 2.7V to 5.5V, V
CC
set as reference, V
OUT
unloaded, unless otherwise noted.
Note 3: Digital inputs at 0V or V
CC
.
Note 4: Load is 10kΩ in parallel with 100pF.
Note 5: V
CC
= V
REF
= 5V. DAC switched between 0.1V
FS
and 0.9V
FS
,
i.e., codes k = 102 and k = 922.
Note 6: All values are referenced to V
IH
and V
IL
levels.
Note 7: Guaranteed by design and not subject to test.
SYMBOL PARAMETER MIN TYP MAX UNITS
Timing Characteristics (Notes 6, 7)
f
SCL
Clock Operating Frequency
●
100 kHz
t
BUF
Bus Free Time Between Stop and Start Condition
●
4.7 μs
t
HD, STA
Hold Time After (Repeated) Start Condition
●
4μs
t
SU, STA
Repeated Start Condition Setup Time
●
4.7 μs
t
SU, STO
Stop Condition Setup Time
●
4μs
t
HD, DAT (IN)
Data Hold Time (Input)
●
0ns
t
HD, DAT (OUT)
Data Hold Time (Output)
●
225 500 3450 ns
t
SU, DAT
Data Setup Time
●
250 ns
t
LOW
Clock Low Period
●
4.7 μs
t
HIGH
Clock High Period
●
4μs
t
f
Clock, Data Fall Time
●
20 300 ns
t
r
Clock, Data Rise Time
●
20 1000 ns
TIMING CHARACTERISTICS
The ● denotes specifi cations which apply over the full operating tempera-
ture range, otherwise specifi cations are at T
A
= 25°C. V
CC
= 2.7V to 5.5V, V
CC
set as reference, V
OUT
unloaded, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Address Inputs AD0, AD1, AD2 (MSOP Only)
I
UP
Address Pin Pull-Up Current V
IN
= 0V
l
0.5 1.5 μA
V
IH
High Level Input Voltage
l
V
CC
– 0.3 V
V
IL
Low Level Input Voltage
l
0.8 V
