BD12730G(2012) Просмотр технического описания (PDF) - ROHM Semiconductor
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Компоненты Описание
производитель
BD12730G
(Rev.:2012)
(Rev.:2012)
ROHM Semiconductor
BD12730G Datasheet PDF : 21 Pages
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BD12730G
●Application example
○Voltage follower
Datasheet
V+
OUT
IN
GND
Figure 31. Voltage follower
○Inverting amplifier
Voltage gain is 0dB.
Using this circuit, the output voltage (OUT) is controlled
to be equal to the input voltage (IN). This circuit also
stabilizes OUT due to high input impedance and low
output impedance. Computation for OUT is shown
below.
OUT=IN
R1
IN
R2
V+
R1//R2
GND
OUT
For inverting amplifier, IN is amplified by a voltage gain
decided by the ratio of R1 and R2. The out-of-phase
output voltage is shown in the next expression.
OUT=-(R2/R1)・IN
This circuit has input impedance equal to R1.
Figure 32. Inverting amplifier circuit
○Non-inverting amplifier
R1
R2
V+
OUT
IN
GND
Figure 33. Non-inverting amplifier circuit
For non-inverting amplifier, IN is amplified by a voltage
gain decided by the ratio of R1 and R2. OUT is in-phase
with Vin and is shown in the next expression.
OUT=(1+R2/R1)・IN
Effectively, this circuit has high input impedance since its
input side is the same as that of the operational
amplifier.
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TSZ22111･15･001
14/18
TSZ02201-0RAR1G200600-1-2
30.NOV.2012 Rev.001
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