LT1810 查看數據表（PDF） - Linear Technology
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LT1810
Linear Technology
LT1810 Datasheet PDF : 24 Pages
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LT1809/LT1810
TYPICAL APPLICATION
Single 3V Supply, 4MHz, 4th Order Butterworth Filter
Benefiting from a low voltage supply operation, low dis-
tortion and rail-to-rail output of LT1809, a low distortion
filter that is suitable for antialiasing can be built as shown
in Figure 10. On a 3V supply, the filter has a passband of
4MHz with 2.5VP-P signal and a stopband that is greater
than 70dB to frequency of 100MHz.
232Ω
47pF
232Ω
VIN
VS
2
665Ω
220pF
–
1/2 LT1810
+
274Ω
22pF
274Ω
562Ω
470pF
–
1/2 LT1810
+
VOUT
1809 F10
Figure 10. Single 3V Supply, 4MHz, 4th Order Butterworth Filter
10
0
–10
–20
–30
–40
–50
–60
–70
–80 VS = 3V, 0V
VIN = 2.5VP-P
–90
10k
100k
1M
10M
FREQUENCY (Hz)
100M
1809 F11
Figure 11. Filter Frequency Response
RELATED PARTS
PART NUMBER
LT1395
LT1632/LT1633
LT1630/LT1631
LT1806/LT1807
DESCRIPTION
COMMENTS
400MHz Current Feedback Amplifier
800V/μs Slew Rate, Shutdown
Dual/Quad 45MHz, 45V/μs Rail-to-Rail Input and Output Op Amps
High DC Accuracy, 1.35mV VOS(MAX), 70mA Output Current,
Max Supply Current 5.2mA per Amplifier
Dual/Quad 30MHz, 10V/μs Rail-to-Rail Input and Output Op Amps
High DC Accuracy, 525μV VOS(MAX), 70mA Output Current,
Max Supply Current 4.4mA per Amplifier
Single/Dual 325MHz, 140V/μs Rail-to-Rail Input and Output Op Amps High DC Accuracy, 550μV VOS(MAX), Low Noise 3.5nV/√Hz,
Low Distortion –80dBc at 5MHz
24 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
180910fa
LT 0709 REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2000
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