LTC1069-1

1

10691fa

Frequency Response

Single 3.3V Supply 3kHz Elliptic Lowpass Filter

TYPICAL APPLICATION

DESCRIPTION

Low Power, 8th Order

Progressive Elliptic,

Lowpass Filter

featuring clock-tunable cutoff frequency and 2.5mA power

supply current with a single 5V supply. An additional feature

of the LTC1069-1 is operation with a single 3.3V supply.

is –0.7dB and the typical passband ripple is ±0.15dB up

features a progressive elliptic response reaching 20dB

With ±5V supplies, the LTC1069-1 cutoff frequency can

be clock-tuned up to 12kHz; with a single 5V supply, the

maximum cutoff frequency is 8kHz.

The low power feature of the LTC1069-1 does not penal-

ize the device’s dynamic range. With ±5V supplies and an

THD) ratio is ≥70dB. The wideband noise of the LTC1069-1

higher speed can be obtained. Please contact LTC market-

ing for details.

The LTC1069-1 is available in 8-pin PDIP and 8-pin SO

packages.

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

FEATURES

APPLICATIONS

NC

CLK

AGND

NC

0.1μF

0.47μF

3.3V

1069-1 TA01

LTC1069-1

300kHz

+

FREQUENCY (kHz)

1.5

–80

–70

–50

–40

–30

4.5

10

10691 TA02

–60

3

7.5

6

–20

–10

0