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參數(shù)資料
| 型號(hào)： | TL031MD |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | ENHANCED-JFET LOW-POWER LOW-OFFSET OPERATIONAL AMPLIFIERS |
| 中文描述： | 增強(qiáng)型場效應(yīng)低功耗低失調(diào)運(yùn)算放大器 |
| 文件頁數(shù)： | 53/56頁 |
| 文件大小： | 887K |
| 代理商： | TL031MD |
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TL03x, TL03xA, TL03xY
ENHANCED-JFET LOW-POWER LOW-OFFSET
OPERATIONAL AMPLIFIERS
SLOS180B – FEBRUARY 1997 – REVISED FEBRUARY 1999
53
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
low-level light-detector preamplifier
Applications that need to detect small currents require high input-impedance operational amplifiers; otherwise,
the bias currents of the operational amplifier camouflage the current being monitored. Phototransistors provide
a current that is proportional to the light reaching the transistor. The TL03x allows even the small currents
resulting from low-level light to be detected.
In Figure 68, if there is no light, the phototransistor is off and the output is high. As light is detected, the
operational amplifier output begins pulling low. Adjusting R4 both compensates for offset voltage of the amplifier
and adjusts the point of light detection by the amplifier.
TL03x
–
+
R6
10 k
C1
100 pF
R7
R3
R1
TIL601
R2
5 k
R5
R4
10 k
10 k
10 k
10 k
10 k
15 V
VO
–15 V
Figure 68. Low-Level Light-Detector Preamplifier
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TL031MFK | ENHANCED-JFET LOW-POWER LOW-OFFSET OPERATIONAL AMPLIFIERS |
| TL031MJG | ENHANCED-JFET LOW-POWER LOW-OFFSET OPERATIONAL AMPLIFIERS |
| TL031MP | ENHANCED-JFET LOW-POWER LOW-OFFSET OPERATIONAL AMPLIFIERS |
| TL031Y | ENHANCED-JFET LOW-POWER LOW-OFFSET OPERATIONAL AMPLIFIERS |
| TL084FK | JFET-INPUT OPERATIONAL AMPLIFIERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TL031MFK | 制造商:TI 制造商全稱:Texas Instruments 功能描述:ENHANCED-JFET LOW-POWER LOW-OFFSET OPERATIONAL AMPLIFIERS |
| TL031MJG | 制造商:TI 制造商全稱:Texas Instruments 功能描述:ENHANCED-JFET LOW-POWER LOW-OFFSET OPERATIONAL AMPLIFIERS |
| TL031MLB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TL031MP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:ENHANCED-JFET LOW-POWER LOW-OFFSET OPERATIONAL AMPLIFIERS |
| TL031Y | 制造商:TI 制造商全稱:Texas Instruments 功能描述:ENHANCED-JFET LOW-POWER LOW-OFFSET OPERATIONAL AMPLIFIERS |
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