Datasheet > BL358L

BL358L

更新时间： 2023-12-06 20:09:41

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上海贝岭 - BELLING		/
页数	文件大小	规格书
12页	841K
描述
BL321L/358L/324L family series operates from a single 2.1V to 5.5V supply or dual ±1.05V to ±2.75V

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BL358L 数据手册

BL321L/358L/324L

Typical Application Circuits

Differential amplifier

The differential amplifier allows the subtraction of two input voltages or cancellation of a signal common the two inputs. It is useful

as a computational amplifier in making a differential to single-end conversion or in rejecting a common mode signal. Figure 1.

shown the differential amplifier using BL321L/358L/324L family.

R₂

R₁

V_IN

V_IP

R₃

R₄

V_OUT

V_REF

Figure 1. Differential Amplifier

R1+R2

R3+R4

V_OUT= (

)

^R4V − ^R2V + ( ^R1+R2

)

V_REF

R3+R4 R1

If the resistor ratios are equal (i.e. R₁=R₃and R₂=R₄), then

V_OUT=

(V_IP−V_IN)+V_REF

Instrumentation Amplifier

The triple BL321L/358L/324L family can be used to build a three-op-amp instrumentation amplifier as shown in Figure 2. The

amplifier in Figure 2 is a high input impedance differential amplifier with gain of R2/R1. The two differential voltage followers assure

the high input impedance of the amplifier.

R₂

R₁

V_IM

V_OUT

V_IP

R₃

R₄

V_REF

Figure 2. Instrument Amplifier

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V1.1

1...3 4 567 8 9...12

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