LTC1992 Family

29

1992f

–

–

+

+

Gain Block

–

+

GAIN =

LTC1992

–

–

+

+

AC Coupled Gain Block

–

+

LTC1992

–

–

+

+

Single Pole Lowpass Filter

–

+

C

LTC1992

C

C

1

–

–

+

+

R1

R3

R3

R4

R4

R1

R2

R2

3-Pole Lowpass Filter

R2

R1

1992 F04

–

+

R1

R3

R4

R2

C1

C2

LTC1992

C3

C1

C1

1

R4C3

1

R2R3C1C2

C2

2

C3

2

()

+

Q

()

1

S

C2

C1

R1 • √R2R3

R1 R2 + R1 R2 + R2 R3

•

Q =

APPLICATIO S I FOR ATIO

Figure 4. Basic Fully Differential Amplifier Application Circuits (Note: Single-Ended to Differential Conversion is

Ground))