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| 型號(hào)： | LMV824MTX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Low Voltage, Low Power, R-to-R Output, 5 MHz Op Amps |
| 中文描述： | QUAD OP-AMP, 3500 uV OFFSET-MAX, 5 MHz BAND WIDTH, PDSO14 |
| 封裝： | PLASTIC, TSSOP-14 |
| 文件頁(yè)數(shù)： | 15/24頁(yè) |
| 文件大小： | 1068K |
| 代理商： | LMV824MTX |
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2.5 Tri-level Voltage Detector
The tri-level voltage detector of Figure 13 provides a type of
window comparator function. It detects three different input
voltage ranges: Min-range, Mid-range, and Max-range. The
output voltage (V
) is at V
for the Min-range. V
O
is
clamped at GND for the Mid-range. For the Max-range, V
is
at V
. Figure 14 shows a V
O
vs. V
I
oscilloscope photo per
the circuit of Figure 13
Its operation is as follows: V
I
deviating from GND, causes
the diode bridge to absorb I
IN
to maintain a clamped condi-
tion (V
= 0V). Eventually, I
reaches the bias limit of the di-
ode bridge. When this limit is reached, the clamping effect
stops and the op amp responds open loop. The design equa-
tion directly preceding Figure 14 shows how to determine
the clamping range. The equation solves for the input volt-
age band on each side GND. The mid-range is twice this
voltage band.
DS100128-89
DS100128-34
FIGURE 13. Tri-level Voltage Detector
OV
-VIN
+VIN
-
+
OV
|
v |
v |
DS100128-35
FIGURE 14. X, Y Oscilloscope Trace showing V
OUT
vs
V
IN
per the Circuit of
Figure 13
www.national.com
15
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PDF描述 |
|---|---|
| LMV824MX | Low Voltage, Low Power, R-to-R Output, 5 MHz Op Amps |
| LMV932MA | 1.8V, RRIO Operational Amplifiers |
| LMV932MAX | 1.8V, RRIO Operational Amplifiers |
| LMV932MM | 1.8V, RRIO Operational Amplifiers |
| LMV932MMX | 1.8V, RRIO Operational Amplifiers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMV824MTX/E7000973 | 制造商:Texas Instruments 功能描述: |
| LMV824MTX/NOPB | 功能描述:運(yùn)算放大器 - 運(yùn)放 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(bǔ)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 |
| LMV824MTX/NOPB | 制造商:Texas Instruments 功能描述:IC, OP-AMP, 5.6MHZ, 2V/ us, TSSOP-14 |
| LMV824MTX/S7001910 | 制造商:Texas Instruments 功能描述: |
| LMV824MTXNOPB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LMV821-N/LMV822-N/LMV822-N-Q1/LMV824/LMV824-N-Q1 Single/Dual/Quad Low Voltage |
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