參數(shù)資料
型號： AD549LHZ
廠商： Analog Devices Inc
文件頁數(shù)： 4/20頁
文件大?。?/td> 0K
描述： IC OPAMP GP 1MHZ LP 20MA TO99-8
標準包裝： 1
系列： Topgate™
放大器類型： 通用
電路數(shù)： 1
轉(zhuǎn)換速率： 3 V/µs
增益帶寬積： 1MHz
電流 - 輸入偏壓： 0.04pA
電壓 - 輸入偏移： 300µV
電流 - 電源： 600µA
電流 - 輸出 / 通道： 20mA
電壓 - 電源，單路/雙路(±)： ±5 V ~ 18 V
工作溫度： 0°C ~ 70°C
安裝類型： 通孔
封裝/外殼： TO-99-8 金屬罐
供應商設(shè)備封裝： TO-99-8
包裝： 散裝
產(chǎn)品目錄頁面： 773 (CN2011-ZH PDF)
AD549
Rev. H | Page 12 of 20
AC RESPONSE WITH HIGH VALUE SOURCE AND
FEEDBACK RESISTANCE
Source and feedback resistances greater than 100 kΩ magnify
the effect of the input capacitances (stray and inherent to
the AD549) on the ac behavior of the circuit. The effects of
common-mode and differential input capacitances should be
taken into account because the circuit bandwidth and stability
can be adversely affected.
0
05
11
-0
32
10mV
5s
Figure 32. Follower Pulse Response from 1 MΩ Source Resistance,
Case Not Bootstrapped
0
05
11
-0
33
10mV
5s
Figure 33. Follower Pulse Response from 1 MΩ Source Resistance,
Case Bootstrapped
In a follower, the source resistance and input common-mode
capacitance form a pole that limits the bandwidth to πRSCS.
Bootstrapping the metal case by connecting Pin 8 to the output
minimizes capacitance due to the package. Figure 32 and Figure 33
show the follower pulse response from a 1 MΩ source resistance
with and without the package connected to the output. Typical
common-mode input capacitance for the AD549 is 0.8 pF.
In an inverting configuration, the differential input capacitance
forms a pole in the loop transmission of the circuit. This can
create peaking in the ac response and possible instability. A
feedback capacitance can be used to stabilize the circuit. The
inverter pulse response with RF and RS equal to 1 MΩ appears
in Figure 34. Figure 35 shows the response of the same circuit
with a 1 pF feedback capacitance. Typical differential input
capacitance for the AD549 is 1 pF.
0
05
11
-0
34
10mV
5s
Figure 34. Inverter Pulse Response with 1 MΩ Source
and Feedback Resistance
0
05
11
-0
35
10mV
5s
Figure 35. Inverter Pulse Response with 1 MΩ Source
and Feedback Resistance, 1 pF Feedback Capacitance
COMMON-MODE INPUT VOLTAGE OVERLOAD
The rated common-mode input voltage range of the AD549 is
from 3 V less than the positive supply voltage to 5 V greater than
the negative supply voltage. Exceeding this range degrades the
CMRR of the amplifier. Driving the common-mode voltage above
the positive supply causes the amplifier output to saturate at the
upper limit of the output voltage. Recovery time is typically 2 μs
after the input has been returned to within the normal operating
range. Driving the input common-mode voltage within 1 V of the
negative supply causes phase reversal of the output signal. In this
case, normal operation typically resumes within 0.5 μs of the
input voltage returning within range.
相關(guān)PDF資料
PDF描述
592624-3 MOD ASSY FEEDBACK SIZE 20 BLACK
4-592629-5 TERM JCT, F/B SZ 21,45 BUSS
4-592629-3 TERM JCT,F/B SZ 21,43 BOSS
592583-1 TERM JCT,SINGLE SPLICE,SZ 12
65863-031 QKE HDR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD549LHZ 制造商:Analog Devices 功能描述:IC, OP-AMP, 1MHZ, 3V/ us, TO-99-8
AD549S 制造商:AD 制造商全稱:Analog Devices 功能描述:Ultralow Input Bias Current Operational Amplifier
AD549SH 制造商:Analog Devices 功能描述:
AD549SH/883B 制造商:Analog Devices 功能描述:OP Amp Single GP 制造商:Analog Devices 功能描述:OP AMP SGL GP 18V 8PIN TO-99 - Rail/Tube 制造商:Analog Devices 功能描述:ULTRALOW BIAS CURRENT AMP 制造商:Rochester Electronics LLC 功能描述:ULTRALOW BIAS CURRENT AMP - Bulk 制造商:Analog Devices 功能描述:IC OP-AMP CURRENT ULTRALOW BIAS 制造商:Analog Devices Inc. 功能描述:Precision Amplifiers ULTRALOW BIAS CURRENT AMP 制造商:Analog Devices Inc. 功能描述:Precision Amplifiers IC ULTRALOW BIAS CURRENT
AD-55 制造商:MEANWELL 制造商全稱:Mean Well Enterprises Co., Ltd. 功能描述:55W Single Output with Battery Charger(UPS Function)
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