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MAX7426 Datasheet(数据表) 1 Page - Maxim Integrated Products

部件型号  MAX7426
说明  5th-Order, Lowpass, Elliptic, Switched-Capacitor Filters
下载  12 Pages
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制造商  MAXIM [Maxim Integrated Products]
网页  http://www.maxim-ic.com
标志 MAXIM - Maxim Integrated Products

MAX7426 Datasheet(HTML) 1 Page - Maxim Integrated Products

  MAX7426 数据表 HTML 1Page - Maxim Integrated Products MAX7426 数据表 HTML 2Page - Maxim Integrated Products MAX7426 数据表 HTML 3Page - Maxim Integrated Products MAX7426 数据表 HTML 4Page - Maxim Integrated Products MAX7426 数据表 HTML 5Page - Maxim Integrated Products MAX7426 数据表 HTML 6Page - Maxim Integrated Products MAX7426 数据表 HTML 7Page - Maxim Integrated Products MAX7426 数据表 HTML 8Page - Maxim Integrated Products MAX7426 数据表 HTML 9Page - Maxim Integrated Products Next Button
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General Description
The MAX7426/MAX7427 5th-order, lowpass, elliptic,
switched-capacitor filters (SCFs) operate from a single
+5V (MAX7426) or +3V (MAX7427) supply. The devices
draw only 0.8mA of supply current and allow corner fre-
quencies from 1Hz to 12kHz, making them ideal for
low-power post-DAC filtering and anti-aliasing applica-
tions. They can be put into a low-power mode, reducing
supply current to 0.2µA.
Two clocking options are available: self-clocking (through
the use of an external capacitor) or external clocking for
tighter cutoff-frequency control. An offset-adjust pin
allows for adjustment of the DC output level.
The MAX7426/MAX7427 deliver 37dB of stopband
rejection and a sharp rolloff with a transition ratio of
1.25. Their fixed response limits the design task to
selecting a clock frequency.
Applications
ADC Anti-Aliasing
CT2 Base Stations
Post-DAC Filtering
Speech Processing
Features
o 5th-Order, Elliptic Lowpass Filters
o Low Noise and Distortion: -80dB THD + Noise
o Clock-Tunable Corner Frequency (1Hz to 12kHz)
o Single-Supply Operation
+5V (MAX7426)
+3V (MAX7427)
o Low Power
0.8mA (Operating Mode)
0.2µA (Shutdown Mode)
o Available in 8-Pin µMAX/PDIP Packages
o Low Output Offset: ±4mV
5th-Order, Lowpass, Elliptic,
Switched-Capacitor Filters
________________________________________________________________ Maxim Integrated Products
1
OS
OUT
VDD
1
2
8
7
CLK
SHDN
IN
GND
COM
µMAX/PDIP
TOP VIEW
3
4
6
5
MAX7426
MAX7427
VDD
IN
CLK
OUT
GND
INPUT
0.1
µF
0.1
µF
CLOCK
SHDN
OUTPUT
COM
OS
MAX7426
MAX7427
VSUPPLY
Typical Operating Circuit
19-1710; Rev 0; 4/00
Pin Configuration
Ordering Information
PART
MAX7426CUA
MAX7426CPA
MAX7426EUA
-40°C to +85°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
8 µMAX
8 Plastic DIP
8 µMAX
MAX7426EPA
-40°C to +85°C
8 Plastic DIP
PART
TRANSITION RATIO
OPERATING
VOLTAGE (V)
MAX7426
r = 1.25
+5
Selector Guide
MAX7427
r = 1.25
+3
MAX7427CUA
MAX7427CPA
MAX7427EUA
-40°C to +85°C
0°C to +70°C
0°C to +70°C
8 µMAX
8 Plastic DIP
8 µMAX
MAX7427EPA
-40°C to +85°C
8 Plastic DIP
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.




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