LTC2440 Linear Technology, LTC2440 Datasheet - Page 2

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

ABSOLUTE AXI U RATI GS
LTC2440
(Notes 1, 2)
Supply Voltage (V
Analog Input Pins Voltage
Reference Input Pins Voltage
Digital Input Voltage to GND ........ – 0.3V to (V
Digital Output Voltage to GND ..... – 0.3V to (V
Operating Temperature Range
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
temperature range, otherwise specifications are at T
PARAMETER
Resolution (No Missing Codes)
Integral Nonlinearity
Offset Error
Offset Error Drift
Positive Full-Scale Error
Positive Full-Scale Error Drift
Negative Full-Scale Error
Negative Full-Scale Error Drift
Total Unadjusted Error
Input Common Mode Rejection DC
ELECTRICAL CHARACTERISTICS
2
LTC2440C ............................................... 0°C to 70°C
LTC2440I ............................................ – 40°C to 85°C
to GND .................................... – 0.3V to (V
to GND .................................... – 0.3V to (V
CC
W
) to GND .......................– 0.3V to 6V
W W
CONDITIONS
0.1V ≤ V
V
REF
2.5V ≤ REF
GND ≤ IN
2.5V ≤ REF
GND ≤ IN
REF
REF
2.5V ≤ REF
IN
REF
REF
2.5V ≤ REF
IN
5V ≤ V
5V ≤ V
REF
2.5V ≤ REF
GND ≤ IN
CC
+
+
+
= 0.75REF
= 0.25 • REF
+
+
+
+
+
= 5V, REF
= 2.5V, REF
= 2.5V, REF
= 5V, REF
= 2.5V, REF
= 5V, REF
= 2.5V, REF
CC
CC
REF
+
+
≤ 5.5V, REF
≤ 5.5V, REF
–
+
= IN
+
= IN
+
+
+
= IN
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
+
+
, IN
–
–
+
= 5V, REF
CC
–
–
CC
CC
CC
CC
+
CC
≤ V
≤ V
≤ V
–
, IN
–
= GND, IN
= GND, IN
–
–
, –0.5 • V
, REF
, REF
, REF
, REF
, REF
–
= GND, V
= GND, V
= GND, IN
= GND, IN
CC
CC
= 0.25 • REF
CC
–
U
+
+
= 0.75 • REF
A
= 2.5V, REF
= 5V, REF
CC
CC
CC
CC
(Note 12)
–
–
–
–
–
= 25°C. (Notes 3, 4)
= GND,
= GND,
= GND,
= GND,
= GND,
–
= GND, V
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
REF
+
+
INCM
INCM
= 3.75V, IN
= 1.25V, IN
+
+
The
≤ V
= 1.875V, IN
= 0.625V, IN
+
–
= 1.25V, (Note 6)
= 1.25V, (Note 6)
IN
= GND, V
–
●
+
INCM
= GND, V
≤ 0.5 • V
denotes specifications which apply over the full operating
–
–
= 2.5V, (Note 6)
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
= 1.25V
= 3.75V
INCM
–
–
= 0.625V
= 1.875V
REF
INCM
REF
REF
GND
GND
V
SDI
IN
IN
, (Note 5)
= 2.5V
CC
+
–
+
–
T
= 1.25V
JMAX
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
= 125°C, θ
GN PACKAGE
TOP VIEW
JA
= 110°C/W
●
●
●
●
●
●
●
16
15
14
13
12
11
10
9
GND
BUSY
F
SCK
SDO
CS
EXT
GND
O
MIN
24
ORDER PART NUMBER
U
TYP
120
2.5
0.2
0.2
20
10
10
10
10
15
15
15
5
3
GN PART MARKING
LTC2440CGN
LTC2440IGN
MAX
15
30
50
30
50
5
2440
2440I
W
ppm of V
ppm of V
sn2440, 2440fas
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
UNITS
REF
REF
nV/°C
U
Bits
REF
REF
REF
REF
/°C
REF
REF
/°C
REF
REF
REF
µV
dB