參數(shù)資料
型號: OPA2369AIDGKRG4
英文描述: 1.8V, 1レA max, Zer┆-Crossover RAIL-TO-RAIL I/O OPERATIONAL AMPLIFIER
中文描述: 1.8,1レ阿最大,澤爾┆-交叉軌至軌I / O運(yùn)算放大器
文件頁數(shù): 12/20頁
文件大小: 644K
代理商: OPA2369AIDGKRG4
www.ti.com
R
3
R
2
V
IN
+2.7V
R
66.5
1
W
C
1.5nF
1
C
1 F
m
2
VREF
A0+
REF3312
+2.7V
V
CC
V
SS
16-Bit
ADC
MSP430x20x3PW
OPA369
OPA369
Output
R
SHUNT
Load
V+
V+
R
G
R
L
R
10k
W
(2)
1
R
BIAS
+5V
zener
(1)
Two zener
biasing methods
are shown.
MOSFET rated to
stand-off supply voltage
such as BSS84 for
up to 50V.
(1) Zener rated for op amp supply capability (that is, 5.1V for OPA369).
(2) Current-limiting resistor.
(3) Choose zener biasing resistor or dual NMOSFETs (FDG6301N, NTJD4001N, or Si1034)
NOTES:
NOTE: 1% resistors provide adequate common-mode rejection at small ground-loop errors.
OPA369
ADS1100
Load
V
I C
R
1
4.99k
W
R
3
4.99k
W
R
4
48.7k
W
R
2
49.9k
W
+5V
3V
REF3130
R
7
1.18k
W
R
SHUNT
1
W
R
6
71.5k
W
R
N
56
W
R
N
56
W
(PGA Gain = 4)
FS = 3.0V
Stray Ground-Loop Resistance
I
LOAD
OPA369
OPA2369
SBOS414A–AUGUST 2007–REVISED SEPTEMBER 2007
Figure 29. Unipolar Signal Chain Configuration
Figure 30. High-Side Current Monitor
Figure 31. Low-Side Current Monitor
12
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Copyright 2007, Texas Instruments Incorporated
Product Folder Link(s):
OPA369 OPA2369
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