【技术应用笔记】单电源应用中的偏置和去耦运算放大器

BW1 =

1

2π (1/2R A) C2

BW2 =

1

2π RIN CIN

BW4 =

1

2π RLOAD

COUT

FOR R A = R B

AND BW1 = 1/10TH BW2,

BW3, ANDBW4

WHERE X C1 <

BW3 =

1

2π R1 C1

TO MINIMIZE INPUT BIAS CURRENT ERRORS,

R2 SHOULD EQUAL R IN +

FOR AC SIGNALS, VOUT = VIN (1 + (R2/R1))

(1/2 R A)

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