LTC2411-1IMS Linear Technology, LTC2411-1IMS Datasheet - Page 26
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LTC2411-1IMS
Manufacturer Part Number
LTC2411-1IMS
Description
IC A/DCONV DIFF INPUT&REF 10MSOP
Manufacturer
Linear Technology
Datasheet
1.LTC2411CMSPBF.pdf
(40 pages)
Specifications of LTC2411-1IMS
Number Of Bits
24
Sampling Rate (per Second)
6.8
Data Interface
MICROWIRE™, Serial, SPI™
Number Of Converters
2
Power Dissipation (max)
1mW
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
LTC24111IMS
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC2411-1IMS
Manufacturer:
LT
Quantity:
10 000
Part Number:
LTC2411-1IMS#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LTC2411-1IMS#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
APPLICATIO S I FOR ATIO
REF
When F
every 100
translates into about 0.37ppm additional INL error. For the
LTC2411-1, when F
resistance driving REF
0.41ppm additional INL error. When F
external oscillator with a frequency f
source resistance driving REF
about 2.91 • 10
ure 19 shows the typical INL error due to the source
resistance driving the REF
values are used. The effect of the source resistance on the
two reference pins is additive with respect to this INL error.
In general, matching of source impedance for the REF
and REF
LTC2411/LTC2411-1
26
Figure 18a. +FS Error vs R
Figure 17a. +FS Error vs R
–
translates into about 0.45ppm additional INL error.
O
–
–100
–120
–140
–160
pins does not help the gain or the INL error. The
–10
–20
–30
–40
–50
–20
–40
–60
–80
= HIGH (internal oscillator and 50Hz notch),
0
0
1
of source resistance driving REF
0
V
REF
REF
IN
IN
F
T
C
V
REF
REF
IN
IN
F
T
O
A
CC
O
REF
A
CC
100
+
–
+
= GND
= 25 C
–
–6
= GND
= 25 C
+
–
= 3.75V
= 5V
= 1.25V
+
–
= 3.75V
= 5V
= 1.25V
= 5V
= 10 F
= GND
= 5V
= GND
200
10
• f
U
C
REF
O
C
300
EOSC
C
REF
C
REF
= 0.001 F
= LOW, every 100
+
REF
R
100
400
C
R
= 100pF
SOURCE
SOURCE
= 0.01 F
SOURCE
REF
SOURCE
U
or REF
= 0pF
ppm additional INL error. Fig-
+
500
or REF
= 0.1 F
C
REF
( )
600
( )
1k
+
at REF
at REF
= 1 F
–
or REF
C
700
REF
–
W
translates into about
pins when large C
10k
800
EOSC
= 0.01 F
+
+
or REF
or REF
900
2411 F17a
O
2411 F18a
–
, every 100 of
is driven by an
100k
1000
translates into
–
–
(Small C
(Large C
U
of source
+
or REF
IN
IN
REF
)
)
–
+
Figure 19. INL vs Differential Input Voltage (V
and Reference Source Resistance (R
for Large C
Figure 17b. – FS Error vs R
Figure 18b. – FS Error vs R
160
140
120
100
–10
80
60
40
20
10
–2
–4
–6
–8
REF
50
40
30
20
10
0
9
6
4
2
0
0
–0.5–0.4– 0.3– 0.2– 0.1 0 0.1 0.2 0.3 0.4 0.5
0
1
V
REF
REF
V
V
REF
REF
IN
IN
F
T
Values (C
V
REF
REF
IN
IN
F
T
CC
INCM
O
A
CC
100
O
CC
A
+
–
= GND
= 25 C
+
–
R
+
–
= 5V
= GND
= 25 C
+
–
= 1.25V
= 5V
= 3.75V
+
= 1.25V
SOURCE
–
= 3.75V
= 5V
= GND
= 5V
= 5V
= GND
= 0.5 • (IN
200
= 5V
= GND
10
C
C
REF
REF
C
300
REF
= 500
REF
R
C
= 0.001 F
= 0.01 F
V
SOURCE
REF
400
R
= 100pF
+
R
100
INDIF
SOURCE
SOURCE
SOURCE
+ IN
SOURCE
C
= 0pF
REF
C
500
R
/V
1 F)
REF
–
SOURCE
) = 2.5V
= 2k
REFDIF
= 1 F
600
( )
= 0.01 F
( )
1k
at REF
at REF
C
REF
700
C
SOURCE
= 1k
REF
= 10 F
F
C
T
800
O
A
REF
10k
= 0.1 F
+
+
= GND
= 25 C
or REF
or REF
= 10 F
900
2411 F18b
2411 F17b
2411 F19
at REF
IN
1000
100k
= IN
–
–
(Small C
(Large C
+
+
and REF
= IN
–
)
IN
IN
–
)
)
)