LTC1669 查看數據表（PDF） - Linear Technology
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LTC1669 Datasheet PDF : 16 Pages
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LTC1669
ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating tempera-
ture range, otherwise specifications are at TA = 25°C. VCC = 2.7V to 5.5V, VCC set as reference, VOUT unloaded, unless otherwise noted.
SYMBOL PARAMETER
Address Inputs AD0, AD1, AD2 (MSOP Only)
IUP
Address Pin Pull-Up Current
VIH
High Level Input Voltage
VIL
Low Level Input Voltage
CONDITIONS
VIN = 0V
MIN
TYP
MAX
UNITS
l
0.5
1.5
μA
l VCC – 0.3
l
V
0.8
V
TIMING CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. VCC = 2.7V to 5.5V, VCC set as reference, VOUT unloaded, unless otherwise noted.
SYMBOL
PARAMETER
Timing Characteristics (Notes 6, 7)
fSCL
tBUF
tHD, STA
tSU, STA
tSU, STO
tHD, DAT (IN)
tHD, DAT (OUT)
tSU, DAT
tLOW
tHIGH
tf
tr
Clock Operating Frequency
Bus Free Time Between Stop and Start Condition
Hold Time After (Repeated) Start Condition
Repeated Start Condition Setup Time
Stop Condition Setup Time
Data Hold Time (Input)
Data Hold Time (Output)
Data Setup Time
Clock Low Period
Clock High Period
Clock, Data Fall Time
Clock, Data Rise Time
MIN
TYP
MAX
●
100
● 4.7
●
4
● 4.7
●
4
●
0
● 225
500
3450
● 250
● 4.7
●
4
●
20
300
●
20
1000
UNITS
kHz
μs
μs
μs
μs
ns
ns
ns
μs
μs
ns
ns
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 defined from code 20 to code
1003 (full scale). See Applications Information.
Note 3: Digital inputs at 0V or VCC.
Note 4: Load is 10kΩ in parallel with 100pF.
Note 5: VCC = VREF = 5V. DAC switched between 0.1VFS and 0.9VFS,
i.e., codes k = 102 and k = 922.
Note 6: All values are referenced to VIH and VIL levels.
Note 7: Guaranteed by design and not subject to test.
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