參數(shù)資料
型號(hào)： TLC27M2MFK
廠商： Texas Instruments, Inc.
英文描述： LinCMOSE PRECISION DUAL OPERATIONAL AMPLIFIERS
中文描述： LinCMOSE精密雙運(yùn)算放大器
文件頁(yè)數(shù)： 30/34頁(yè)
文件大?。?/td> 509K
代理商： TLC27M2MFK
TLC27M2, TLC27M2A, TLC27M2B, TLC27M7
LinCMOS
PRECISION DUAL OPERATIONAL AMPLIFIERS
SLOS051C – OCTOBER 1987 – REVISED MAY 1999
30
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
output characteristics (continued)
Figure 42. Resistive Pullup to Increase V
OH
–
+
VI
VDD
RP
VO
R2
R1
RL
IP
IP
IL
RP
VDD
VO
IF
IL
IP
IP = Pullup current required by
the operational amplifier
(typically 500
μ
A)
VO
–
+
C
Figure 43. Compensation for Input Capacitance
feedback
Operational amplifier circuits nearly always employ feedback, and since feedback is the first prerequisite for
oscillation, some caution is appropriate. Most oscillation problems result from driving capacitive loads
(discussed previously) and ignoring stray input capacitance. A small-value capacitor connected in parallel with
the feedback resistor is an effective remedy (see Figure 43). The value of this capacitor is optimized empirically.
electrostatic-discharge protection
The TLC27M2 and TLC27M7 incorporate an internal electrostatic-discharge (ESD) protection circuit that
prevents functional failures at voltages up to 2000 V as tested under MIL-STD-883C, Method 3015.2. Care
should be exercised, however, when handling these devices as exposure to ESD may result in the degradation
of the device parametric performance. The protection circuit also causes the input bias currents to be
temperature dependent and have the characteristics of a reverse-biased diode.
latch-up
Because CMOS devices are susceptible to latch-up due to their inherent parasitic thyristors, the TLC27M2 and
TLC27M7 inputs and outputs were designed to withstand –100-mA surge currents without sustaining latch-up;
however, techniques should be used to reduce the chance of latch-up whenever possible. Internal protection
diodes should not, by design, be forward biased. Applied input and output voltage should not exceed the supply
voltage by more than 300 mV. Care should be exercised when using capacitive coupling on pulse generators.
Supply transients should be shunted by the use of decoupling capacitors (0.1
μ
F typical) located across the
supply rails as close to the device as possible.
The current path established if latch-up occurs is usually between the positive supply rail and ground and can
be triggered by surges on the supply lines and/or voltages on either the output or inputs that exceed the supply
voltage. Once latch-up occurs, the current flow is limited only by the impedance of the power supply and the
forward resistance of the parasitic thyristor and usually results in the destruction of the device. The chance of
latch-up occurring increases with increasing temperature and supply voltages.
相關(guān)PDF資料
PDF描述
TLC27M2MP LinCMOSE PRECISION DUAL OPERATIONAL AMPLIFIERS
TLC27M7MD LinCMOSE PRECISION DUAL OPERATIONAL AMPLIFIERS
TLC27M7MFK LinCMOSE PRECISION DUAL OPERATIONAL AMPLIFIERS
TLC27M7MP LinCMOSE PRECISION DUAL OPERATIONAL AMPLIFIERS
TLC2943DB HIGH-PERFORMANCE DUAL PHASE-LOCKED BUILDING BLOCK
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TLC27M4ACDRG4 功能描述:運(yùn)算放大器 - 運(yùn)放 LinCMOS Precision Quad Op Amp 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
TLC27M4ACN 功能描述:運(yùn)算放大器 - 運(yùn)放 LiNCMOS Quad 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
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