
LTC2285
4
2285fb
INTERNAL REFERENCE CHARACTERISTICS (Note 4)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCM Output Voltage
IOUT = 0
1.475
1.500
1.525
V
VCM Output Tempco
±25
ppm/°C
VCM Line Regulation
2.85V < VDD < 3.4V
3
mV/V
VCM Output Resistance
|IOUT| < 1mA
4Ω
DIGITAL INPUTS AND DIGITAL OUTPUTS The l denotes the specications which apply over the
full operating temperature range, otherwise specications are at TA = 25°C. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
LOGIC INPUTS (CLK, OE, SHDN, MUX)
VIH
High Level Input Voltage
VDD = 3V
●
2V
VIL
Low Level Input Voltage
VDD = 3V
●
0.8
V
IIN
Input Current
VIN = 0V to VDD
●
–10
10
μA
CIN
Input Capacitance
(Note 7)
3
pF
LOGIC OUTPUTS
OVDD = 3V
COZ
Hi-Z Output Capacitance
OE = High (Note 7)
3
pF
ISOURCE
Output Source Current
VOUT = 0V
50
mA
ISINK
Output Sink Current
VOUT = 3V
50
mA
VOH
High Level Output Voltage
IO = –10μA
IO = –200μA
●
2.7
2.995
2.99
V
VOL
Low Level Output Voltage
IO = 10μA
IO = 1.6mA
●
0.005
0.09
0.4
V
OVDD = 2.5V
VOH
High Level Output Voltage
IO = –200μA
2.49
V
VOL
Low Level Output Voltage
IO = 1.6mA
0.09
V
OVDD = 1.8V
VOH
High Level Output Voltage
IO = –200μA
1.79
V
VOL
Low Level Output Voltage
IO = 1.6mA
0.09
V