LTC1059 High Performance Switched Capacitor Universal Filter

The LTC™1059 consists of a general purpose, high performance, active filter building block and an uncommitted op amp. The filter building block together with an external clock and 2 to 5 resistors can produce various 2nd order functions which are available at its three output pins. Two out of three always provide lowpass and bandpass functions while the third output pin can produce notch or highpass or allpass. The center frequency of these functions can be tuned from 0.1Hz to 40kHz and is dependent on an external clock or an external clock and a resistor ratio. The filter can handle input frequencies up to 100kHz. The uncommitted op amp can be used to obtain additional allpass and notch functions, for gain adjustment or for cascading techniques.

Higher than 2nd order filter functions can be obtained by cascading the LTC1059 with the LTC1060 dual universal filter or the LTC1061 triple universal filter. Any classical filter realization (such as Butterworth, Cauer, Bessel and Chebyshev) can be formed.

The LTC1059 can be operated with single or dual supplies ranging from �2.37V to �8V (or 4.74V to 16V single supply).

The LTC1059 is manufactured by using linear Technology’s enhanced LTCMOS® silicon gate process

产品特点 Features

All Filter Parameters Guaranteed over Temperature
Wide Center Frequency Range (0.1Hz to 40kHz)
Low Noise Wide Dynamic Range
Guaranteed Operation for �2.37V and ±5V Supply
Low Power Consumption
Guaranteed Clock-to-Center Frequency Accuracy of 0.8% (LTC1059A)
Guaranteed Low Offset Voltages over Temperature
Very Low Center Frequency and Q Tempco
Clock Input T²L or CMOS Compatible
Separate Highpass (or Notch or Allpass), Bandpass, Lowpass Outputs

参数

应用

Sinewave Oscillators
Sweepable Bandpass/Notch Filters
Full Audio Frequency Filters
Tracking Filters

典型应用图

LTC1059 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC1059CN	PDIP	14	C	$3.75	$3.10
LTC1059CN#PBF	PDIP	14	C	$3.75	$3.10
LTC1059CS	SO	14	C	$4.20	$3.30
LTC1059CS#PBF	SO	14	C	$4.20	$3.30
LTC1059CS#TR	SO	14	C		$3.36
LTC1059CS#TRPBF	SO	14	C		$3.36

LTC1059 数据手册及相关资料下载

数据手册(英文) : LTC1059 - High Performance Switched Capacitor Universal Filter.PDF
应用指南 (英文) : AN24 - Unique Applications for the LTC1062 Lowpass Filter.PDF
可靠性数据 : R042 Reliability Data.PDF