Datasheet

LTC1659
4
1659fa
ELECTRICAL CHARACTERISTICS
The ● denotes the 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
OUT
unloaded, REF ≤ V
CC
, T
A
= T
MIN
to T
MAX
unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Switching (V
CC
= 4.5V to 5.5V
t
1
D
IN
Valid to CLK Setup
●
40 ns
t
2
D
IN
Valid to CLK Hold
●
0ns
t
3
CLK High Time (Note 7)
●
40 ns
t
4
CLK Low Time (Note 7)
●
40 ns
t
5
⎯
C
⎯
S/LD Pulse Width (Note 7)
●
50 ns
t
6
LSB CLK to
⎯
C
⎯
S/LD (Note 7)
●
40 ns
t
7
⎯
C
⎯
S/LD Low to CLK (Note 7)
●
20 ns
t
8
D
OUT
Output Delay C
LOAD
= 15pF
●
5150ns
t
9
CLK Low to
⎯
C
⎯
S/LD Low (Note 7)
●
20 ns
Switching (V
CC
= 2.7V to 5.5V)
t
1
D
IN
Valid to CLK Setup
●
60 ns
t
2
D
IN
Valid to CLK Hold
●
0ns
t
3
CLK High Time (Note 7)
●
60 ns
t
4
CLK Low Time (Note 7)
●
60 ns
t
5
⎯
C
⎯
S/LD Pulse Width (Note 7)
●
80 ns
t
6
LSB CLK to
⎯
C
⎯
S/LD (Note 7)
●
60 ns
t
7
⎯
C
⎯
S/LD Low to CLK (Note 7)
●
30 ns
t
8
D
OUT
Output Delay C
LOAD
= 15pF
●
10 220 ns
t
9
CLK Low to
⎯
C
⎯
S/LD Low (Note 7)
●
30 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 is defi ned from code 20 to code 4095 (full scale). See
Applications Information.
Note 3: Load is 5kΩ in parallel with 100pF.
Note 4: DAC switched between all 1s and the code corresponding to V
OS
for the part.
Note 5: Digital inputs at 0V or V
CC
.
Note 6: V
OUT
can only swing from (GND + |V
OS
|) to (V
CC
– |V
OS
|) when
output is unloaded.
Note 7: Guaranteed by design, not subject to test.