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LTC1060
1060fb
Universal Dual Filter
Building Block
DESCRIPTIO
U
APPLICATIO S
U
■
Guaranteed Filter Specification for ±2.37V and
±5V Supply
■
Operates Up to 30kHz
■
Low Power and 88dB Dynamic Range at ±2.5V Supply
■
Center Frequency Q Product Up to 1.6MHz
■
Guaranteed Offset Voltages
■
Guaranteed Clock-to-Center Frequency Accuracy Over
Temperature:
0.3% for LTC1060A
0.8% for LTC1060
■
Guaranteed Q Accuracy Over Temperature
■
Low Temperature Coefficient of Q and Center
Frequency
■
Low Crosstalk, 70dB
■
Clock Inputs TTL and CMOS Compatible
■
Single 5V Supply Medium Frequency Filters
■
Very High Q and High Dynamic Range Bandpass,
Notch Filters
■
Tracking Filters
■
Telecom Filters
Single 5V, Gain of 1000 4th Order Bandpass Filter
The LTC
1060 consists of two high performance, switched
capacitor filters. Each filter, together with 2 to 5 resistors,
can produce various 2nd order filter functions such as
lowpass, bandpass, highpass notch and allpass. The
center frequency of these functions can be tuned by an
external clock or by an external clock and resistor ratio. Up
to 4th order full biquadratic functions can be achieved by
cascading the two filter blocks. Any of the classical filter
configurations (like Butterworth, Chebyshev, Bessel, Cauer)
can be formed.
The LTC1060 operates with either a single or dual supply
from ±2.37V to ±8V. When used with low supply
(i.e. single 5V supply), the filter typically consumes 12mW
and can operate with center frequencies up to 10kHz. With
±5V supply, the frequency range extends to 30kHz and
very high Q values can also be obtained.
The LTC1060 is manufactured by using Linear
Technology’s enhanced LTCMOS silicon gate process.
Because of this, low offsets, high dynamic range, high
center frequency Q product and excellent temperature
stability are obtained.
The LTC1060 is pinout compatible with MF10.
FEATURES
TYPICAL APPLICATIO
U
Amplitude Response
LTC1060 TA01
VIN
1mV(RMS)
0.1F
3.16k
100k
2k
100k
LTC1060
2k
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
5V
OUTPUT
1k
CLOCK IN
17.5kHz
INPUT FREQUENCY (Hz)
0
GAIN
(dB)
30
50
275
LTC1060 TA02
10
–10
125
175
225
100
150
200
250
70
20
40
0
60
, LTC and LT are registered trademarks of Linear Technology Corporation.
LTCMOS trademark of Linear Technology Corporation.