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參數資料
| 型號： | LMV324MTX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | General Purpose, Low Voltage, Rail-to-Rail Output Operational Amplifiers |
| 中文描述： | QUAD OP-AMP, 9000 uV OFFSET-MAX, 1 MHz BAND WIDTH, PDSO14 |
| 封裝： | TSSOP-14 |
| 文件頁數： | 21/27頁 |
| 文件大小： | 1151K |
| 代理商： | LMV324MTX |
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Application Notes
(Continued)
4.9 COMPARATOR WITH HYSTERESIS
The LMV321/358/324 can be used as a low power compara-
tor.
Figure 24
shows a comparator with hysteresis. The
hysteresis is determined by the ratio of the two resistors.
V
TH+
= V
REF
/(1+R
1
/R
2
)+V
OH
/(1+R
2
/R
1
)
V
TH
= V
REF
/(1+R
1
/R
2
)+V
OL
/(1+R
2
/R
1
)
V
H
= (V
OH
V
OL
)/(1+R
2
/R
1
)
where
V
TH+
: Positive Threshold Voltage
V
TH
: Negative Threshold Voltage
V
OH
: Output Voltage at High
V
OL
: Output Voltage at Low
V
H
: Hysteresis Voltage
Since
LMV321/358/324
have
(V
OH
V
OL
) equals to V
S
, which is the supply voltage.
V
H
= V
S
/(1+R
2
/R
1
)
Connection Diagrams
rail-to-rail
output,
the
The differential voltage at the input of the op amp should not
exceed the specified absolute maximum ratings. For real
comparators that are much faster, we recommend you to use
National’s LMV331/393/339, which are single, dual and quad
general purpose comparators for low voltage operation.
5-Pin SC70-5/SOT23-5
8-Pin SO/MSOP
14-Pin SO/TSSOP
10006001
Top View
10006002
Top View
10006003
Top View
Ordering Information
Package
Temperature Range
Industrial
40C to +85C
LMV321M7
LMV321M7X
LMV321M5
LMV321M5X
LMV358M
LMV358MX
LMV358MM
LMV358MMX
LMV324M
LMV324MX
LMV324MT
LMV324MTX
Packaging Marking
Transport Media
NSC Drawing
5-Pin SC70-5
A12
A12
A13
A13
1k Units Tape and Reel
3k Units Tape and Reel
1k Units Tape and Reel
3k Units Tape and Reel
Rails
2.5k Units Tape and Reel
1k Units Tape and Reel
3.5k Units Tape and Reel
Rails
2.5k Units Tape and Reel
Rails
2.5k Units Tape and Reel
MAA05
5-Pin SOT23-5
MA05B
8-Pin Small Outline
LMV358M
LMV358M
LMV358
LMV358
LMV324M
LMV324M
LMV324MT
LMV324MT
M08A
8-Pin MSOP
MUA08A
14-Pin Small Outline
M14A
14-Pin TSSOP
MTC14
10006078
FIGURE 24. Comparator with Hysteresis
L
www.national.com
21
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LMV324MTX/NOPB | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數量: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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LMV324MX | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數量: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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LMV324MX/NOPB | 功能描述:運算放大器 - 運放 GEN PURP, LOW VLTG, RRO OP AMP RoHS:否 制造商:STMicroelectronics 通道數量: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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LMV324PW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-VOLTAGE RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS |
| LMV324Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-VOLTAGE RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS |
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