Datasheet

LTC2414/LTC2418
4
241418fa
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IN
+
Absolute/Common Mode IN
+
Voltage ● GND – 0.3 V
CC
+ 0.3 V
IN
–
Absolute/Common Mode IN
–
Voltage ● GND – 0.3 V
CC
+ 0.3 V
V
IN
Input Differential Voltage Range ● –V
REF
/2 V
REF
/2 V
(IN
+
– IN
–
)
REF
+
Absolute/Common Mode REF
+
Voltage ● 0.1 V
CC
V
REF
–
Absolute/Common Mode REF
–
Voltage ● GND V
CC
– 0.1 V
V
REF
Reference Differential Voltage Range ● 0.1 V
CC
V
(REF
+
– REF
–
)
C
S
(IN
+
)IN
+
Sampling Capacitance 18 pF
C
S
(IN
–
)IN
–
Sampling Capacitance 18 pF
C
S
(REF
+
)REF
+
Sampling Capacitance 18 pF
C
S
(REF
–
)REF
–
Sampling Capacitance 18 pF
I
DC_LEAK
(IN
+
)IN
+
DC Leakage Current CS = V
CC
= 5.5V, IN
+
= GND ● –10 1 10 nA
I
DC_LEAK
(IN
–
)IN
–
DC Leakage Current CS = V
CC
= 5.5V, IN
–
= 5V ● –10 1 10 nA
I
DC_LEAK
(REF
+
)REF
+
DC Leakage Current CS = V
CC
= 5.5V, REF
+
= 5V ● –10 1 10 nA
I
DC_LEAK
(REF
–
)REF
–
DC Leakage Current CS = V
CC
= 5.5V, REF
–
= GND ● –10 1 10 nA
Off Channel to In Channel Isolation DC 140 dB
(R
IN
= 100Ω) 1Hz 140 dB
f
S
= 15,3600Hz 140 dB
t
OPEN
MUX Break-Before-Make Interval 2.7V ≤ V
CC
≤ 5.5V 70 100 300 ns
I
S(OFF)
Channel Off Leakage Current Channel at V
CC
and GND ● –10 1 10 nA
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
A ALOG I PUT A D REFERE CE
UU
U
U
The ● denotes specifications which apply over the full
operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IH
High Level Input Voltage 2.7V ≤ V
CC
≤ 5.5V ● 2.5 V
CS, F
O
, SDI 2.7V ≤ V
CC
≤ 3.3V 2.0 V
V
IL
Low Level Input Voltage 4.5V ≤ V
CC
≤ 5.5V ● 0.8 V
CS, F
O
, SDI 2.7V ≤ V
CC
≤ 5.5V 0.6 V
V
IH
High Level Input Voltage 2.7V ≤ V
CC
≤ 5.5V (Note 9) ● 2.5 V
SCK 2.7V ≤ V
CC
≤ 3.3V (Note 9) 2.0 V
V
IL
Low Level Input Voltage 4.5V ≤ V
CC
≤ 5.5V (Note 9) ● 0.8 V
SCK 2.7V ≤ V
CC
≤ 5.5V (Note 9) 0.6 V
I
IN
Digital Input Current 0V ≤ V
IN
≤ V
CC
● –10 10 µA
CS, F
O
, SDI
I
IN
Digital Input Current 0V ≤ V
IN
≤ V
CC
(Note 9) ● –10 10 µA
SCK
C
IN
Digital Input Capacitance 10 pF
CS, F
O
, SDI
C
IN
Digital Input Capacitance (Note 9) 10 pF
SCK
V
OH
High Level Output Voltage I
O
= – 800µA ● V
CC
– 0.5 V
SDO
DIGITAL I PUTS A D DIGITAL OUTPUTS
UU