參數(shù)資料
型號: LTC2435IGN
廠商: LINEAR TECHNOLOGY CORP
元件分類: ADC
英文描述: 20-Bit No Latency ADCs with Differential Input and Differential Reference
中文描述: 1-CH 20-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16
封裝: 0.150 INCH, PLASTIC, SSOP-16
文件頁數(shù): 26/40頁
文件大?。?/td> 463K
代理商: LTC2435IGN
LTC2435/LTC2435-1
26
24351fa
APPLICATIU
W
U
U
Figure 14. LTC2435/LTC2435-1 Equivalent Analog Input Circuit
Figure 15. An RC Network at IN
+
and IN
Figure 17. –FS Error vs R
SOURCE
at IN
+
or IN
(Small C
IN
)
Figure 16. +FS Error vs R
SOURCE
at IN
+
or IN
(Small C
IN
)
I IN
V
V
0 5
.
V
R
I IN
V
V
0 5
.
V
R
I REF
V
V
V
R
V
V
V
R
2
I REF
V
V
R
V
V
R
where
V
REF
AVG
IN
INCM
REFCM
EQ
AVG
IN
INCM
REFCM
EQ
AVG
REF
INCM
REFCM
EQ
IN
REF
EQ
AVG
REF
INCM
EQ
REFCM
IN
REF
EQ
+
+
)
=
+
)
=
+
)
=
.
+
)
=
.
+
+
1 5
.
0 5
1 5
.
0 5
2
:
REF
REF
V
REF
REF
V
IN
IN
V
IN
IN
REFCM
IN
INCM
R
EQ
= 43.2M
INTERNAL OSCILLATOR 60Hz NOTCH (F
O
= LOW) LTC2435
R
EQ
= 52M
INTERNAL OSCILLATOR 50Hz NOTCH (F
O
= HIGH) LTC2435
R
EQ
= 48M
INTERNAL OSCILLATOR 50Hz/60Hz NOTCH (F
O
= LOW) LTC2435-1
R
EQ
= (6.7 10
12
)/f
EOSC
EXTERNAL OSCILLATOR
=
=
+
2
=
=
2
+
+
+
+
V
REF
+
V
IN
+
V
CC
R
SW
(TYP)
20k
I
LEAK
I
LEAK
V
CC
V
CC
I
LEAK
I
LEAK
R
SW
(TYP)
20k
C
18pF
(TYP)
R
SW
(TYP)
20k
I
LEAK
I
IN
+
V
IN
I
IN
I
REF
+
I
REF
2435 F18
I
LEAK
V
CC
I
LEAK
I
LEAK
SWITCHING FREQUENCY
f
SW
= 76800Hz INTERNAL
OSCILLATOR (LTC2435)
(F
O
= LOW OR HIGH)
f
SW
= 69900Hz INTERNAL
OSCILLATOR (LTC2435-1)
(F
O
= LOW)
f
SW
= 0.5 f
EOSC
EXTERNAL OSCILLATOR
V
REF
R
SW
(TYP)
20k
C
IN
2435 F19
V
INCM
+ 0.5V
IN
R
SOURCE
IN
+
LTC2435/
LTC2435-1
C
PAR
20pF
C
IN
V
INCM
– 0.5V
IN
R
SOURCE
IN
C
PAR
20pF
R
SOURCE
(W)
1
+
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
10000
2435 F16
10
100
1000
100000
C
IN
= 0pF
C
IN
= 100pF
C
IN
= 0.01
μ
F
C
IN
= 0.001
μ
F
V
= 5V
V
CC
= 5V
V
REF–
= GND
V
IN+
= 3.75V
V
IN–
= 1.25V
F
O
= GND
T
A
= 25
°
C
R
SOURCE
(W)
1
100
90
80
70
60
50
40
30
20
10
0
–10
10000
2435 F17
10
100
1000
100000
C
IN
= 0pF
C
IN
= 0.01
μ
F
V
= 5V
V
CC
= 5V
V
REF–
= GND
V
IN+
= 1.25V
V
IN–
= 3.75V
F
O
= GND
T
A
= 25
°
C
C
IN
= 100pF
C
IN
= 0.001
μ
F
相關(guān)PDF資料
PDF描述
LTC2435-1IGN 20-Bit No Latency ADCs with Differential Input and Differential Reference
LTC2435 20-Bit No Latency ADCs with Differential Input and Differential Reference
LTC2435-1 20-Bit No Latency ADCs with Differential Input and Differential Reference
LTC2435-1CGN 20-Bit No Latency ADCs with Differential Input and Differential Reference
LTC2435CGN 20-Bit No Latency ADCs with Differential Input and Differential Reference
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