LTC1069-1CS8 datasheet(1/8 Pages) LINER

部件名	LTC1069-1CS8

功能描述	Low Power, 8th Order Progressive Elliptic, Lowpass Filter

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制造商	LINER [Linear Technology]

网页	http://www.linear.com

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1

LTC1069-1

Low Power, 8th Order

Progressive Elliptic,

Lowpass Filter

S

FEATURE

s

8th Order Elliptic Filter in SO-8 Package

s

Operates from Single 3.3V to

±5V Power Supplies

s

– 20dB at 1.2 fCUTOFF

s

– 52dB at 1.4 fCUTOFF

s

– 70dB at 2 fCUTOFF

s

Wide Dynamic Range

s

110

µVRMS Wideband Noise

s

3.8mA Supply Current with

±5V Supplies

s

2.5mA Supply Current with Single 5V Supply

s

2mA Supply Current with Single 3.3V Supply

The cutoff frequency (fCUTOFF) of the LTC1069-1 is equal

to the clock frequency divided by 100. The gain at fCUTOFF

is – 0.7dB and the typical passband ripple is

±0.15dB

up to 0.9 fCUTOFF. The stopband attenuation of the

LTC1069-1 features a progressive elliptic response

reaching 20dB attenuation at 1.2 fCUTOFF, 52dB attenua-

tion at 1.4fCUTOFF and 70dB attenuation at 2fCUTOFF.

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

input range of 0.3VRMS to 2.5VRMS, the signal-to-(noise

+ THD) ratio is

≥70dB. The wideband noise of the

LTC1069-1 is 110

µVRMS. Other filter responses with

lower power or higher speed can be obtained. Please

contact LTC marketing for details.

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

packages.

APPLICATI

TYPICAL

Frequency Response

FREQUENCY (kHz)

1.5

–80

–70

–50

–40

–30

4.5

10

1069-1 TA02

–60

3

7.5

6

–20

–10

0

Single 3.3V Supply 3kHz Elliptic Lowpass Filter

1

2

3

4

8

7

6

5

VOUT

V –

NC

CLK

AGND

V+

NC

VIN

0.1

µF

0.47

µF

3.3V

VIN

1069-1 TA01

VOUT

LTC1069-1

fCLK

300kHz

+

s

Telecommunication Filters

s

Antialiasing Filters

S

APPLICATI

DESCRIPTIO

The LTC

®1069-1 is a monolithic 8th order 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.

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

类似零件编号 - LTC1069-1CS8

制造商	部件名	数据表	功能描述
Analog Devices	LTC1069-1CS8#PBF	142Kb / 10P	Low Power, 8th Order Progressive Elliptic, Lowpass Filter REV A
Analog Devices	LTC1069-1CS8#TRPBF	142Kb / 10P	Low Power, 8th Order Progressive Elliptic, Lowpass Filter REV A

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