Datasheet > LTC1064-3_15

LTC1064-3_15

更新时间： 2022-10-12 13:50:16

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
12页	146K
描述
Low Noise, High Frequency, 8th Order Linear Phase Lowpass Filter

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LTC1064-3_15 数据手册

LTC1064-3

Low Noise, High Frequency,

8th Order Linear Phase Lowpass Filter

FEATURES

DESCRIPTIO

The LTC^®1064-3 is a monolithic 8th order lowpass Bessel

filter, which provides a linear phase response over its

entire passband. An external TTL or CMOS clock pro-

grams the filter’s cutoff frequency. The clock to cutoff

frequency ratio is 75:1 (Pin 10 at V⁺) or 150:1 (Pin 10 at

V^–) or 120:1 (Pin 10 at GND). The maximum cutoff

frequency is 95kHz. No external components are needed.

■

8th Order Filter in a 14-Pin Package

■

95kHz Maximum Corner Frequency

■

No External Components

75:1, 150:1 and 120:1 Clock to Cutoff Frequency

Ratio

■

60µV_RMSTotal Wideband Noise

0.03% THD or Better

Operates from ±2.37V to ±8V Power Supplies

Low Total Output DC Offset

The LTC1064-3 features low wideband noise and low

harmonic distortion even for input voltages up to 3V_RMS

In fact the LTC1064-3 overall performance competes with

equivalent multiple op amp RC active realizations. The

LTC1064-3 is available in a 14-pin DIP or 16-pin surface

mountedSOLpackage.TheLTC1064-3isfabricatedusing

LTC’s enhanced analog CMOS Si-gate process.

APPLICATIO S

■

Antialiasing Filters

Smoothing Filters

Tracking High Frequency Lowpass Filters

■

The LTC1064-3 is pin compatible with the LTC1064-1,

LTC1064-2 and LTC1064-4.

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

TYPICAL APPLICATIO

8th Order Clock Sweepable Lowpass Bessel Filter

Measured Frequency Response

OUT C

–15

–30

–45

–60

–75

LTC1064-3

–

–8V

AGND

0.1µF

CLOCK = 7MHz

CLK

0.1µF

75/150

AGND

OUT

–90

–3dB

= ±7.5V, f

= 7MHz, PIN 10 TO V ,

CLK

INV A

= 95kHz, GROUP DELAY = 6µs

–105

1064 TA01a

100

1000

NOTE: THE POWER SUPPLIES SHOULD BE BYPASSED BY A 0.1µF

OR LARGER CAPACITOR CLOSE TO THE PACKAGE. THE CONNECTI0N

BETWEEN PIN 7 AND PIN 14 SHOULD BE MADE UNDER THE IC PACKAGE.

FREQUENCY (kHz)

1064-3 TA01b

10643fa

12 3 4 5 6 7...12

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