LTC1063

12

1063fa

–5V

R

5V

0.1

µF

1063 TA06

1

2

3

4

8

7

6

5

LTC1063

C

1

2

3

4

8

7

6

5

LTC1063

–5V

5V

0.1

µF

0.1

µF

0.1

µF

–7.5V

7.5V

0.1

µF

1

2

3

4

8

7

6

5

LTC1063

0.1

µF

7.5V

1

µF

TANT

+

1063 TA05

10k

≅2.5mV

LT1009

10k

*

* OPTIONAL, 1N4148

–5V

R

5V

0.1

µF

1063 TA04

1

2

3

4

8

7

6

5

LTC1063

C

1

2

3

4

8

7

6

5

LTC1063

–5V

5V

0.1

µF

0.1

µF

0.1

µF

WIDEBAND NOISE = 140

INPUT FREQUENCY (kHz)

0

100

90

80

70

60

50

40

30

20

8

1063 F11

2

4

6

10

(A) LTC1063

BUTTERWORTH

1

35

79

(B) GROUP

DELAY

CORRECTED

5V

13k

5V

0.1

µF

1063 TA03

0.1

µF

200pF

1

2

3

4

8

7

6

5

LTC1063

4.53k

+

4.99k

1

µF

TANT

Group Delay

The group delay of the LTC1063 closely approximates the

delay of an ideal 5-pole Butterworth lowpass filter (Figure

11, Curve A). To linearize the group delay of the LTC1063

(Figure 11, Curve B), use an input resistor about six times

The passband response of the group delay corrected filter

approximates a 5-pole Bessel response while its transi-

tion band rolls off like a Butterworth.

Figure 11. Group Delay

±7.5 Supply Operation

Sharing Clock for Multichannel Applications

Cascading Two LTC1063s for Steeper Roll-Off

APPLICATIO S I FOR ATIO

TYPICAL APPLICATIO S