Datasheet

LTC2484
4
2484fd
ANALOG INPUT AND REFERENCE
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 3)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
C
S
(IN
+
)IN
+
Sampling Capacitance 11 pF
C
S
(IN
–
)IN
–
Sampling Capacitance 11 pF
C
S
(V
REF
)V
REF
Sampling Capacitance 11 pF
I
DC_LEAK
(IN
+
)IN
+
DC Leakage Current Sleep Mode, IN
+
= GND
l
–10 1 10 nA
I
DC_LEAK
(IN
–
)IN
–
DC Leakage Current Sleep Mode, IN
–
= GND
l
–10 1 10 nA
I
DC_LEAK
(V
REF
)V
REF
DC Leakage Current Sleep Mode, V
REF
= V
CC
l
–100 1 100 nA
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 3)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IH
High Level Input Voltage
CS, f
O
, SDI
2.7V ≤ V
CC
≤ 5.5V (Note 16)
l
V
CC
– 0.5 V
V
IL
Low Level Input Voltage
CS, f
O
, SDI
2.7V ≤ V
CC
≤ 5.5V
l
0.5 V
V
IH
High Level Input Voltage
SCK
2.7V ≤ V
CC
≤ 5.5V (Note 10)
l
V
CC
– 0.5 V
V
IL
Low Level Input Voltage
SCK
2.7V ≤ V
CC
≤ 5.5V (Note 10)
l
0.5 V
I
IN
Digital Input Current
CS, f
O
, SDI
0V ≤ V
IN
≤ V
CC
l
–10 10 μA
I
IN
Digital Input Current
SCK
0V ≤ V
IN
≤ V
CC
(Note 10)
l
–10 10 μA
C
IN
Digital Input Capacitance
CS, f
O
, SDI
10 pF
C
IN
Digital Input Capacitance
SCK
10 pF
V
OH
High Level Output Voltage
SDO
I
O
= –800μA
l
V
CC
– 0.5 V
V
OL
Low Level Output Voltage
SDO
I
O
= 1.6mA
l
0.4 V
V
OH
High Level Output Voltage
SCK
I
O
= –800μA
l
V
CC
– 0.5 V
V
OL
Low Level Output Voltage
SCK
I
O
= 1.6mA
l
0.4 V
I
OZ
Hi-Z Output Leakage
SDO
l
–10 10 μA
POWER REQUIREMENTS
The l denotes the specifi cations which apply over the full operating temperature
range, otherwise specifi cations are at T
A
= 25°C. (Note 3)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Supply Voltage
l
2.7 5.5 V
I
CC
Supply Current Conversion Mode (Note 12)
Sleep Mode (Note 12)
l
l
160
1
250
2
μA
μA