LTC2440 Linear Technology, LTC2440 Datasheet - Page 3

• Manufacturer Part Number: LTC2440
• Description: 24-Bit High Speed Differential delta-sigma ADC
• Manufacturer: Linear Technology

A ALOG I PUT A
DIGITAL I PUTS A D DIGITAL OUTPUTS
temperature range, otherwise specifications are at T
SYMBOL
IN
IN
V
REF
REF
V
C
C
C
C
I
I
operating temperature range, otherwise specifications are at T
SYMBOL
V
V
V
V
I
I
C
C
V
V
V
V
I
REF+, REF–)
REF+, REF–)
DC_LEAK(IN+, IN–,
SAMPLE(IN+, IN–,
IN
IN
OZ
IN
REF
S(IN+)
S(IN–)
S(REF+)
S(REF–)
IH
IL
IH
IL
IN
IN
OH
OL
OH
OL
+
–
U
+
–
PARAMETER
High Level Input Voltage
CS, F
Low Level Input Voltage
CS, F
High Level Input Voltage
SCK
Low Level Input Voltage
SCK
Digital Input Current
CS, F
Digital Input Current
SCK
Digital Input Capacitance
CS, F
Digital Input Capacitance
SCK
High Level Output Voltage
SDO, BUSY
Low Level Output Voltage
SDO, BUSY
High Level Output Voltage
SCK
Low Level Output Voltage
SCK
Hi-Z Output Leakage
SDO
PARAMETER
Absolute/Common Mode IN
Absolute/Common Mode IN
Input Differential Voltage Range
(IN
Absolute/Common Mode REF
Absolute/Common Mode REF
Reference Differential Voltage Range
(REF
IN
IN
REF
REF
Leakage Current, Inputs and Reference
Average Input/Reference Current
During Sampling
U
+
–
U
+
O
O
O
O
Sampling Capacitance
Sampling Capacitance
+
–
– IN
+
Sampling Capacitance
Sampling Capacitance
– REF
–
)
–
)
U
U
D REFERE CE
+
–
Voltage
Voltage
+
–
Voltage
Voltage
A
CONDITIONS
4.5V ≤ V
4.5V ≤ V
4.5V ≤ V
4.5V ≤ V
0V ≤ V
0V ≤ V
(Note 8)
I
I
I
I
O
O
O
O
= 25°C. (Note 3)
= –800µA
= 1.6mA
= –800µA (Note 9)
= 1.6mA (Note 9)
U
CONDITIONS
CS = V
REF
IN
IN
+
CC
CC
CC
CC
= 5V, REF
≤ V
≤ V
CC
A
≤ 5.5V
≤ 5.5V
≤ 5.5V (Note 8)
≤ 5.5V (Note 8)
The
, IN
CC
CC
= 25°C. (Note 3)
(Note 8)
+
●
= GND, IN
–
denotes specifications which apply over the full operating
= GND
–
The
= GND,
●
denotes specifications which apply over the full
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
GND – 0.3V
GND – 0.3V
V
V
CC
CC
–V
Varies, See Applications Section
–100
GND
MIN
MIN
–10
–10
–10
0.1
0.1
2.5
2.5
REF
– 0.5V
– 0.5V
/2
TYP
TYP
3.5
3.5
3.5
3.5
10
10
10
LTC2440
V
V
V
CC
CC
CC
V
MAX
MAX
0.4V
0.4V
REF
V
V
100
0.8
0.8
10
10
10
+ 0.3V
+ 0.3V
– 0.1V
CC
CC
/2
sn2440, 2440fas
UNITS
UNITS
3
nA
µA
µA
µA
pF
pF
pF
pF
pF
pF
V
V
V
V
V
V
V
V
V
V
V
V
V
V