參數(shù)資料
型號(hào)： MAX494EPD
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 運(yùn)動(dòng)控制電子
英文描述： High-Output RS-485 Transceiver 8-SOIC -40 to 85
中文描述： QUAD OP-AMP, 950 uV OFFSET-MAX, 0.5 MHz BAND WIDTH, PDIP14
封裝： PLASTIC, DIP-14
文件頁(yè)數(shù)： 12/16頁(yè)
文件大小： 230K
代理商： MAX494EPD
M
S ingle/Dual/Quad, Mic ropower,
S ingle-S upply Rail-to-Rail Op Amps
12
______________________________________________________________________________________
in series with IN-, IN+, or both. Series resistors are not
recommended for amplifier applications, as they may
increase input offsets and decrease amplifier bandwidth.
Output Loading and S tability
Even with their low quiescent current of less than 150μA
per op amp, the MAX492/MAX494/MAX495 are well
suited for driving loads up to 1k
while maintaining DC
accuracy. Stability while driving heavy capacitive loads
is another key advantage over comparable CMOS rail-
to-rail op amps.
In op amp circuits, driving large capacitive loads
increases the likelihood of oscillation. This is especially
true for circuits with high loop gains, such as a unity-
gain voltage follower. The output impedance and a
capacitive load form an RC network that adds a pole to
the loop response and induces phase lag. If the pole
frequency is low enough—as when driving a large
capacitive load—the circuit phase margin is degraded,
leading to either an under-damped pulse response or
oscillation.
10
μ
s/div
V
IN
50mV/div
V
OUT
50mV/div
10
μ
s/div
V
IN
50mV/div
V
OUT
50mV/div
10
μ
s/div
V
IN
50mV/div
V
OUT
50mV/div
Figure 7c. MAX492 Voltage Follower with 500pF Load—
R
L
=
∞
Figure 7a. MAX492 Voltage Follower with 500pF Load—
R
L
= 5k
Figure 7b. MAX492 Voltage Follower with 500pF Load—
R
L
= 20k
V
IN
50mV/div
V
OUT
50mV/div
10
μ
s/div
Figure 6. MAX492 Voltage Follower with 1000pF Load
(R
L
=
∞
)
相關(guān)PDF資料
PDF描述
MAX494ESD High-Output RS-485 Transceiver 8-SOIC -40 to 85
MAX5003-50WEVKIT Evaluation Kit for the MAX5003-50W
MAX5042 Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller
MAX5043 Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller
MAX5052 Current-Mode PWM Controllers with an Error Amplifier for Isolated/Nonisolated Power Supplies
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX494EPD+ 功能描述:運(yùn)算放大器 - 運(yùn)放 uPower Single-Supply Rail-Rail 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
MAX494ESD 功能描述:運(yùn)算放大器 - 運(yùn)放 uPower Single-Supply Rail-Rail 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
MAX494ESD+ 功能描述:運(yùn)算放大器 - 運(yùn)放 uPower Single-Supply Rail-Rail 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
MAX494ESD+T 功能描述:運(yùn)算放大器 - 運(yùn)放 uPower Single-Supply Rail-Rail 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
MAX494ESD-T 功能描述:運(yùn)算放大器 - 運(yùn)放 uPower Single-Supply Rail-Rail 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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