Datasheet

4
LTC1854/LTC1855/LTC1856
185456fa
The ● denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25∞C. (Note 5)
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
REF
Output Voltage I
OUT
= 0 ● 2.475 2.50 2.525 V
V
REF
Output Temperature Coefficient I
OUT
= 0 ±10 ppm/∞C
V
REF
Output Impedance –0.1mA £ I
OUT
£ 0.1mA 8 kW
V
REFCOMP
Output Voltage I
OUT
= 0 4.096 V
The ● denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25∞C. (Note 5)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IH
High Level Input Voltage V
DD
= 5.25V ● 2.4 V
V
IL
Low Level Input Voltage V
DD
= 4.75V ● 0.8 V
I
IN
Digital Input Current V
IN
= 0V to V
DD
● ±10 mA
C
IN
Digital Input Capacitance 5pF
V
OH
High Level Output Voltage V
DD
= 4.75V, I
O
= –10mA, OV
DD
= V
DD
4.74 V
V
DD
= 4.75V, I
O
= –200mA, OV
DD
= V
DD
● 4V
V
OL
Low Level Output Voltage V
DD
= 4.75V, I
O
= 160mA, OV
DD
= V
DD
0.05 V
V
DD
= 4.75V, I
O
= 1.6mA, OV
DD
= V
DD
● 0.10 0.4 V
I
OZ
Hi-Z Output Leakage V
OUT
= 0V to V
DD
, RD = High ● ±10 mA
C
OZ
Hi-Z Output Capacitance RD = High 15 pF
I
SOURCE
Output Source Current V
OUT
= 0V –10 mA
I
SINK
Output Sink Current V
OUT
= V
DD
10 mA
I TER AL REFERE CE CHARACTERISTICS
UU U
DIGITAL I PUTS A D DIGITAL OUTPUTS
UU
PARAMETER CONDITIONS MIN TYP MAX UNITS
Positive Supply Voltage (Notes 9 and 10) 4.75 5.00 5.25 V
Positive Supply Current ● 8.0 12 mA
Nap Mode 5.5 7 mA
Sleep Mode CONVST = 0V or 5V 8.0 13 mA
Power Dissipation 40.0 mW
Nap Mode 27.5 mW
Sleep Mode CONVST = 0V or 5V 40.0 mW
The ● denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25∞C. (Note 5)
POWER REQUIRE E TS
WU