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參數(shù)資料
| 型號： | TLE2027MP |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 運動控制電子 |
| 英文描述： | EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS |
| 中文描述： | 神劍低噪聲，高精密高速運算放大器 |
| 文件頁數(shù)： | 31/35頁 |
| 文件大?。?/td> | 562K |
| 代理商： | TLE2027MP |
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TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–31
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
input offset voltage nulling
The TLE2027 and TLE2037 series offers external null pins that can be used to further reduce the input offset
voltage. The circuits of Figure 55 can be connected as shown if the feature is desired. If external nulling is not
needed, the null pins may be left disconnected.
4.7 k
1 k
VCC +
OUT
IN –
IN +
VCC –
+
–
4.7 k
–
+
VCC –
OUT
VCC +
10 k
IN –
IN +
(a) STANDARD ADJUSTMENT
(b) ADJUSTMENT WITH IMPROVED SENSITIVITY
Figure 55. Input Offset Voltage Nulling Circuits
voltage-follower applications
The TLE2027 circuitry includes input-protection diodes to limit the voltage across the input transistors; however,
no provision is made in the circuit to limit the current if these diodes are forward biased. This condition can occur
when the device is operated in the voltage-follower configuration and driven with a fast, large-signal pulse. It
is recommended that a feedback resistor be used to limit the current to a maximum of 1 mA to prevent
degradation of the device. Also, this feedback resistor forms a pole with the input capacitance of the device.
For feedback resistor values greater than 10 k
, this pole degrades the amplifier phase margin. This problem
can be alleviated by adding a capacitor (20 pF to 50 pF) in parallel with the feedback resistor (see Figure 56).
RF
IF
≤
1 mA
–
+
VI
VO
VCC–
VCC
CF = 20 to 50 pF
Figure 56. Voltage Follower
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TLE2027Y | EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS |
| TLE2027AMP | EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS |
| TLE2037AMFK | EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS |
| TLE2037AMJG | EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS |
| TLE2037AMP | EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLE2027QDRQ1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION POERATIONAL AMPLIFIERS |
| TLE2027Y | 制造商:TI 制造商全稱:Texas Instruments 功能描述:EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS |
| TLE202X | 制造商:TI 制造商全稱:Texas Instruments 功能描述:EXCALIBUR HIGH-SPEED LOW-POWER PRECISION OPERATIONAL AMPLIFIERS |
| TLE202X_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:EXCALIBUR HIGH-SPEED LOW-POWER PRECISION OPERATIONAL AMPLIFIERS |
| TLE202XA | 制造商:TI 制造商全稱:Texas Instruments 功能描述:EXCALIBUR HIGH-SPEED LOW-POWER PRECISION OPERATIONAL AMPLIFIERS |
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