參數(shù)資料
型號(hào): TLE2227Y
廠商: Texas Instruments, Inc.
英文描述: EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION DUAL OPERATIONAL AMPLIFIERS
中文描述: 神劍低噪聲,高高速精密雙運(yùn)算放大器
文件頁(yè)數(shù): 30/31頁(yè)
文件大?。?/td> 470K
代理商: TLE2227Y
TLE2227, TLE2227Y, TLE2237, TLE2237Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION DUAL OPERATIONAL AMPLIFIERS
SLOS184 – FEBRUARY 1997
30
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
voltage-follower applications
The TLE22x7C 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. A feedback resistor is recommended 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’s phase margin. This problem can be
alleviated by adding a capacitor (20 pF to 50 pF) in parallel with the feedback resistor (see Figure 53).
RF
IF
1 mA
+
VI
VO
VCC–
VCC+
CF = 20 to 50 pF
Figure 53. Voltage-Follower Circuit
相關(guān)PDF資料
PDF描述
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TLE2425(中文) Precision Virtual Grounds(用于5V單電源模擬器件,產(chǎn)生中值電壓作為虛地)
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TLE2425Y Precision Virtual Grounds(用于5V單電源模擬器件,產(chǎn)生中值電壓作為虛地)
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參數(shù)描述
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