EC5761 datasheet(4/13 Pages) E-CMOS

tên linh kiện	EC5761

Giải thích chi tiết về linh kiện	1.5M, Zero-Drift, CMOS, Rail-to-Rail Operational Amplifier

PDF	13 Pages

Scroll/Zoom	100%

nhà sản xuất	E-CMOS [E-CMOS Corporation]

Trang chủ	http://www.ecmos.com.tw/

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4 / 13 page

1.5M, Zero-Drift, CMOS,

Rail-to-Rail Operational Amplifier

EC5761

E-CMOS Corp. (www.ecmos.com.tw)

3K28N-Rev.P001

Page 4 of 13

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 4. shown the differential amplifier using EC5761.

Figure 4. Differential Amplifier

If the resistor ratios are equal (i.e. R1=R3 and R2=R4), then

Instrumentation Amplifier

The input impedance of the previous differential amplifier is set by the resistors R1, R2, R3, and R4. To

maintain the high input impedance, one can use a voltage follower in front of each input as shown in the

following two instrumentation amplifiers.

Three-Op-Amp Instrumentation Amplifier

The triple EC5761 can be used to build a three-op-amp instrumentation amplifier as shown in Figure 5.

Figure 5. Three-Op-Amp Instrumentation Amplifier

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