TLR342FVT datasheet(36/54 Pages) ROHM

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Datasheet

www.rohm.com

TSZ02201-0RAR0G200720-1-2

36/51

03.Feb.2016 Rev.004

TSZ22111･15･001

TLR341G TLR342xxx TLR344xxx

Application Example

○

Voltage Follower

○

Inverting Amplifier

○

Non-inverting Amplifier

Figure 80. Inverting Amplifier Circuit

Figure 81. Non-inverting Amplifier Circuit

Figure 79. Voltage Follower Circuit

Voltage gain is 0dB.

Using this circuit, the output voltage (VOUT) is configured

to be equal to the input voltage (VIN). This circuit also

stabilizes the output voltage (VOUT) due to high input

impedance and low output impedance. Computation for

output voltage (VOUT) is shown below.

VOUT=VIN

For inverting amplifier, input voltage (VIN) is amplified by

a voltage gain and depends on the ratio of R1 and R2.

The out-of-phase output voltage is shown in the next

expression

VOUT=-(R2/R1)・VIN

This circuit has input impedance equal to R1.

For non-inverting amplifier, input voltage (VIN) is

amplified by a voltage gain, which depends on the ratio

of R1 and R2. The output voltage (VOUT) is in-phase with

the input voltage (VIN) and is shown in the next

expression.

VOUT=(1 + R2/R1)・VIN

Effectively, this circuit has high input impedance since its

input side is the same as that of the operational amplifier.

VOUT

VSS

VIN

VDD

VOUT

VSS

VIN

VDD

VSS

VDD

VIN

VOUT

TLR342FVT 데이터시트(PDF) 36 Page - Rohm

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