Datasheet

LTC2285
4
2285fb
INTERNAL REFERENCE CHARACTERISTICS
(Note 4)
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CM
Output Voltage I
OUT
= 0 1.475 1.500 1.525 V
V
CM
Output Tempco ±25 ppm/°C
V
CM
Line Regulation 2.85V < V
DD
< 3.4V 3 mV/V
V
CM
Output Resistance
| I
OUT
| < 1mA
4
DIGITAL INPUTS AND DIGITAL OUTPUTS
The l denotes the specifi cations which apply over the
full operating temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 4)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
LOGIC INPUTS (CLK, OE, SHDN, MUX)
V
IH
High Level Input Voltage V
DD
= 3V
●
2V
V
IL
Low Level Input Voltage V
DD
= 3V
●
0.8 V
I
IN
Input Current V
IN
= 0V to V
DD
●
–10 10 µA
C
IN
Input Capacitance (Note 7) 3 pF
LOGIC OUTPUTS
OV
DD
= 3V
C
OZ
Hi-Z Output Capacitance OE = High (Note 7) 3 pF
I
SOURCE
Output Source Current V
OUT
= 0V 50 mA
I
SINK
Output Sink Current V
OUT
= 3V 50 mA
V
OH
High Level Output Voltage I
O
= –10µA
I
O
= –200µA
●
2.7
2.995
2.99
V
V
V
OL
Low Level Output Voltage I
O
= 10µA
I
O
= 1.6mA
●
0.005
0.09 0.4
V
V
OV
DD
= 2.5V
V
OH
High Level Output Voltage I
O
= –200µA 2.49 V
V
OL
Low Level Output Voltage I
O
= 1.6mA 0.09 V
OV
DD
= 1.8V
V
OH
High Level Output Voltage I
O
= –200µA 1.79 V
V
OL
Low Level Output Voltage I
O
= 1.6mA 0.09 V