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| 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運算放大器 |
| 文件頁數(shù)： | 11/20頁 |
| 文件大小： | 644K |
| 代理商： | OPA2369AIDGKRG4 |
www.ti.com
WINDOW COMPARATOR
Figure 27
shows the OPA2369 used as a window
comparator. The threshold limits are set by V
H
and
V
L
, with V
H
> V
L
. When V
IN
<
VH
, the output of A1 is
low. When V
IN
>V
L
, the output of A2 is low.
Therefore, both op amp outputs are at 0V as long as
V
IN
is between V
H
and V
L
. This configuration results
in no current flowing through either diode, Q1 in
cutoff, with the base voltage at 0V, and V
OUT
forced
high.
V =
R
2
R +R
R
4
R +R
2
(5)
V =
4
(6)
3V
A1
A2
D1
(2)
D2
(2)
R
5
10k
W
R
6
5.1k
W
R
7
5.1k
W
R
IN
2k
W
(1)
3V
3V
Q1
(3)
R
1
V
H
V
L
R
2
1/2
OPA2369
1/2
OPA2369
3V
V
OUT
V
IN
3V
R
3
R
4
NOTES: (1) R
protects A1 and A2 from possible excess current flow.
(2) IN4446 or equivalent diodes.
(3) 2N2222 or equivalent NPN transistor.
IN
ADDITIONAL APPLICATION EXAMPLES
Figure 28
through
Figure 32
illustrate additional application examples.
R
1
V
EX
V
OUT
V
REF
R
1
OPA369
R
R
R R
+5V
OPA369
OPA2369
SBOS414A–AUGUST 2007–REVISED SEPTEMBER 2007
If V
IN
falls below V
L
, the output of A2 is high, current
flows through D2, and V
OUT
is low. Likewise, if V
IN
rises above V
H
, the output of A1 is high, current flows
through D1, and V
OUT
is low. The window comparator
threshold voltages are set as follows:
Figure 27. OPA2369 as a Window Comparator
Figure 28. Single Op Amp Bridge Amplifier
Copyright 2007, Texas Instruments Incorporated
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Product Folder Link(s):
OPA369 OPA2369
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPA2369AIDGKT | 功能描述:運算放大器 - 運放 1.8V 1uA max 0-C/O Rail-to-Rail I/O RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| OPA2369AIDGKTG4 | 功能描述:運算放大器 - 運放 1.8V 1uA max 0-C/O Rail-to-Rail I/O RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| OPA237 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Supply Operational Amplifiers MicroAmplifier(TM) Series |
| OPA237/OPA2237/OPA4237 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:OPA237. OPA2237. OPA4237 - SINGLE-SUPPLY OPERATIONAL AMPLIFIERS MicroAmplifier Series |
| OPA237_07 | 制造商:BB 制造商全稱:BB 功能描述:SINGLE-SUPPLY OPERATIONAL AMPLIFIERS MicroAmplifier⑩ Series |
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