4
LTC1655/LTC1655L
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
VCC = 4.5V to 5.5V (LTC1655), VCC = 2.7V to 5.5V (LTC1655L); VOUT unloaded, REF unloaded, unless otherwise noted.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Nonlinearity is defined from code 128 to code 65535 (full scale).
See Applications Information.
Note 3: DAC switched between all 1s and all 0s. VFS = 4.096V.
Note 4: Digital inputs at 0V or VCC.
Note 5: Part is clocked with pin toggling between 1s and 0s, CS/LD is low.
Note 6: Reference can be overdriven (see Applications Information).
Note 7: Guaranteed by design. Not subject to test.
Note 8: Guaranteed by correlation for other reference and supply
conditions.
ILEAK
Digital Input Leakage
VIN = GND to VCC
q
±10
A
CIN
Digital Input Capacitance
(Note 7)
10
pF
Switching
t1
DIN Valid to CLK Setup
LTC1655
q
40
ns
LTC1655L
q
60
ns
t2
DIN Valid to CLK Hold
LTC1655
q
0ns
LTC1655L
q
0ns
t3
CLK High Time
LTC1655
q
40
ns
LTC1655L
q
60
ns
t4
CLK Low Time
LTC1655
q
40
ns
LTC1655L
q
60
ns
t5
CS/LD Pulse Width
LTC1655
q
50
ns
LTC1655L
q
80
ns
t6
LSB CLK to CS/LD
LTC1655
q
40
ns
LTC1655L
q
60
ns
t7
CS/LD Low to CLK
LTC1655
q
20
ns
LTC1655L
q
30
ns
t8
DOUT Output Delay
LTC1655, CLOAD = 15pF
q
20
120
ns
LTC1655L, CLOAD = 15pF
q
20
300
ns
t9
CLK Low to CS/LD Low
LTC1655
q
20
ns
LTC1655L
q
30
ns
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS