18 FN7532.4 March 5, 2013 Power Dissipation It is possible to exceed the +150掳C maximum junction temperatures under certain " />
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鍨嬭櫉锛� ISL28118FBZ
寤犲晢锛� Intersil
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鎻忚堪锛� IC OPAMP PREC R-R 4MHZ LP 8SOIC
鐢�(ch菐n)鍝佸煿瑷撴ā濉婏細 Solutions for Industrial Control Applications
妯欐簴鍖呰锛� 97
鏀惧ぇ鍣ㄩ鍨嬶細 閫氱敤
闆昏矾鏁�(sh霉)锛� 1
杓稿嚭椤炲瀷锛� 婊挎摵骞�
杞�(zhu菐n)鎻涢€熺巼锛� 1.2 V/µs
澧炵泭甯跺绌嶏細 4MHz
闆绘祦 - 杓稿叆鍋忓锛� 230nA
闆诲 - 杓稿叆鍋忕Щ锛� 25µV
闆绘祦 - 闆绘簮锛� 850µA
闆绘祦 - 杓稿嚭 / 閫氶亾锛� 28mA
闆诲 - 闆绘簮锛屽柈璺�/闆欒矾(±)锛� 3 V ~ 40 V锛�-1.2 V/+1.8 V ~ ±20 V
宸ヤ綔婧害锛� -40°C ~ 125°C
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灏佽/澶栨锛� 8-SOIC锛�0.154"锛�3.90mm 瀵級
渚涙噳鍟嗚ō(sh猫)鍌欏皝瑁濓細 8-SOIC
鍖呰锛� 绠′欢
ISL28118, ISL28218
18
FN7532.4
March 5, 2013
Power Dissipation
It is possible to exceed the +150掳C maximum junction
temperatures under certain load and power supply conditions. It
is therefore important to calculate the maximum junction
temperature (TJMAX) for all applications to determine if power
supply voltages, load conditions, or package type need to be
modified to remain in the safe operating area. These parameters
are related using Equation 1:
where
PDMAXTOTAL is the sum of the maximum power dissipation of
each amplifier in the package (PDMAX)
TMAX = Maximum ambient temperature
JA = Thermal resistance of the package
PDMAX for each amplifier can be calculated using Equation 2:
where
PDMAX = Maximum power dissipation of 1 amplifier
VS = Total supply voltage
IqMAX = Maximum quiescent supply current of one amplifier
VOUTMAX = Maximum output voltage swing of the application
RL = Load resistance
ISL28118 and ISL28218 SPICE Model
Figure 64 shows the SPICE model schematic and Figure 65 shows
the net list for the SPICE model. The model is a simplified version
of the actual device and simulates important AC and DC
parameters. AC parameters incorporated into the model are: 1/f
and flatband noise voltage, slew rate, CMRR, and gain and phase.
The DC parameters are IOS, total supply current, and output
voltage swing. The model uses typical parameters given in the
鈥淓lectrical Specifications鈥� table beginning on page 3. The AVOL is
adjusted for 136dB with the dominant pole at 0.6Hz. The CMRR is
set at 120dB, f = 50kHz. The input stage models the actual device
to present an accurate AC representation. The model is configured
for an ambient temperature of +25掳C.
Figures 66 through 80 show the characterization vs simulation
results for the noise voltage, open loop gain phase, closed loop
gain vs frequency, gain vs frequency vs RL, CMRR, large signal
10V step response, small signal 0.1V step, and output voltage
swing 卤15V supplies.
LICENSE STATEMENT
The information in the SPICE model is protected under United
States copyright laws. Intersil Corporation hereby grants users of
this macro-model, hereto referred to as 鈥淟icensee鈥�, a
nonexclusive, nontransferable licence to use this model, as long
as the Licensee abides by the terms of this agreement. Before
using this macro-model, the Licensee should read this license. If
the Licensee does not accept these terms, permission to use the
model is not granted.
The Licensee may not sell, loan, rent, or license the
macro-model, in whole, in part, or in modified form, to anyone
outside the Licensee鈥檚 company. The Licensee may modify the
macro-model to suit his/her specific applications, and the
Licensee may make copies of this macro-model for use within
their company only.
This macro-model is provided 鈥淎S IS, WHERE IS, AND WITH NO
WARRANTY OF ANY KIND EITHER EXPRESSED OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.鈥�
In no event will Intersil be liable for special, collateral, incidental,
or consequential damages in connection with, or arising out of,
the use of this macro-model. Intersil reserves the right to make
changes to the product and the macro-model without prior
notice.
TJMAX
TMAX JAxPDMAXTOTAL
+
=
(EQ. 1)
PDMAX
VS IqMAX VS
(
- VOUTMAX)
VOUTMAX
RL
------------------------
+
=
(EQ. 2)
鐩搁棞(gu膩n)PDF璩囨枡
PDF鎻忚堪
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鍙冩暩(sh霉)鎻忚堪
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ISL28118FRTZ 鍒堕€犲晢:INTERSIL 鍒堕€犲晢鍏ㄧū:Intersil Corporation 鍔熻兘鎻忚堪:40V Precision Single Supply Rail-to-Rail Output Low Power Operational Amplifiers
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