1

LTC1563-2/LTC1563-3

156323fa

Allow Arbitrary Transfer Functions with or without

FilterCAD

TM

Single Resistor Value, Different Resistor Values

Allow Other Responses with or without Gain

Single Resistor Value, Different Resistor Values

Allow Other Responses with or without Gain

±5V Supply

The LTC

easy-to-use, active RC lowpass filters with rail-to-rail

inputs and outputs and low DC offset suitable for systems

with a resolution of up to 16 bits. The LTC1563-2, with a

single resistor value, gives a unity-gain Butterworth

response. The LTC1563-3, with a single resistor value,

gives a unity-gain Bessel response. The proprietary

architecture of these parts allows for a simple resistor

calculation:

cations, this formula is all that is needed to design a filter.

By simply utilizing different valued resistors, gain and

other responses are achieved.

The LTC1563-X features a low power mode, for the lower

frequency applications, where the supply current is re-

duced by an order of magnitude and a near zero power

shutdown mode.

The LTC1563-Xs are available in the narrow SSOP-16

package (Same footprint as an SO-8 package).

Single 3.3V, 256Hz to 256kHz Butterworth Lowpass Filter

Active RC, 4th Order

Lowpass Filter Family

, LTC and LT are registered trademarks of Linear Technology Corporation.

0.1

µF

3.3V

R

R

R

R

R

R

1563 TA01

LTC1563-2

0.1

µF

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

LP

SA

NC

INVA

NC

LPA

AGND

LPB

NC

INVB

NC

SB

NC

EN

10k

R

()

FREQUENCY (Hz)

10k

1k

100

10

0

–10

–20

–30

–40

–50

–60

–70

–80

100k

1M

1563 TA02

R = 10M

R = 10k

Frequency Response

APPLICATIO S

FEATURES

TYPICAL APPLICATIO

DESCRIPTIO

FilterCAD is trademark of Linear Technology Corporation.

All other trademarks are the property of their respective owners.