LTC1164 데이터 시트보기 (PDF) - Linear Technology

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LTC1164

Low Power, Low Noise, Quad Universal Filter Building Block

Linear Technology 

LTC1164

ELECTRICAL CHARACTERISTICS

(12, 13, 24) VOS1

+

1

––

+

(11, 14, 23)

2

VOS2

+ Σ + ––

–

+

5 (8, 20)

(10, 15, 22)

3

(9, 16, 21)

4

+ VOS3 – –

+

6

LTC1164 • BD01

Figure 1. Equivalent Input Offsets of 1/4 LTC1164 Filter Building Block

Table 1. Output DC Offsets One 2nd Order Section

MODE

1

1b

2

3

VOSN

PIN 2, 11, 14, 23

VOS1[(1/Q) + 1 + ||HOLP||] – V0S3/Q

VOS1[(1/Q) + 1 + R2/R1] – V0S3/Q

[VOS1(1 + R2/R1 + R2/R3 + R2/R4) – V0S3(R2/R3)] •

[R4/(R2 + R4)] + V0S2[R2/(R2 + R4)]

V0S2

VOSBP

PINS 3, 10, 15, 22

VOS3

VOS3

VOS3

VOS3

VOSLP

PINS 4, 9, 16, 21

VOSN – VOS2

~ (VOSN – VOS2) (1 + R5/R6)

VOSN – VOS2

[ ] ( ) R4 R4 R4

R4

VOS1 1 + + + – VOS2

R1 R2 R3

R2

( ) –VOS3 R4

R3

1164fa

4

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