LTC2255/LTC2254
4
22554fa
DIGITAL I PUTS A D DIGITAL OUTPUTS
U
The
● denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4)
I TER AL REFERE CE CHARACTERISTICS
UU
U
(Note 4)
POWER REQUIRE E TS
W
U
The
● denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 8)
LTC2255
LTC2254
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
VDD
Analog Supply Voltage
(Note 9)
●
2.85
3
3.4
2.85
3
3.4
V
OVDD
Output Supply Voltage
(Note 9)
●
0.5
3
3.6
0.5
3
3.6
V
IVDD
Supply Current
●
132
156
107
126
mA
PDISS
Power Dissipation
●
395
468
320
378
mW
PSHDN
Shutdown Power
SHDN = H,
2
mW
OE = H, No CLK
PNAP
Nap Mode Power
SHDN = H,
15
mW
OE = L, No CLK
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
–1mA < IOUT < 1mA
4
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
LOGIC INPUTS (CLK, OE, SHDN)
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
A
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 = –10A
2.995
V
IO = –200A
●
2.7
2.99
V
VOL
Low Level Output Voltage
IO = 10A
0.005
V
IO = 1.6mA
●
0.09
0.4
V
OVDD = 2.5V
VOH
High Level Output Voltage
IO = –200A
2.49
V
VOL
Low Level Output Voltage
IO = 1.6mA
0.09
V
OVDD = 1.8V
VOH
High Level Output Voltage
IO = –200A
1.79
V
VOL
Low Level Output Voltage
IO = 1.6mA
0.09
V