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LMR321GFVT-E2 Datasheet(PDF) 31 Page - Rohm

Part # LMR321GFVT-E2
Description  Ground sense Low Power General Purpose Operational amplifiers
PDF  41 Pages
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

LMR321GFVT-E2 Datasheet(HTML) 31 Page - Rohm

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Datasheet
www.rohm.com
TSZ02201-0RAR1G200560-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
31/38
30.NOV.2012 Rev.001
TSZ22111･15･001
LMR321G, LMR358xxx, LMR324xxx
○Adder circuit
○Differential amplifier
Figure 82. Differential amplifier
Figure 81. Adder circuit
Adder circuit output the voltage that added up Input
voltage. A phase of the output voltage turns over,
because non-inverting circuit is used.
OUT is shown next formula.
OUT = -R3(IN1/R1+IN2/R2)
When three input voltage is as above, it connects
with input through resistance like R1 and R2.
Differential
amplifier
output
the
voltage
that
amplified a difference of input voltage.
In the case of R1=R3=Ra, R2=R4=Rb
OUT is shown next formula.
OUT = -Rb/Ra(IN1-IN2)
R1
R2
IN1
IN2
R3
VDD
OUT
R2
R1
VDD
VSS
R3
OUT
IN1
IN2
R4
VSS



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