參數(shù)資料
型號： MAX7438EVKIT
廠商： Maxim Integrated Products, Inc.
英文描述： Evaluation Kit for the MAX7438/MAX7439
中文描述： MAX7438、MAX7439評估板
文件頁數(shù)： 1/12頁
文件大小： 231K
代理商： MAX7438EVKIT
General Desc ription
The MAX7400/MAX7403/MAX7404/MAX7407 8th-order,
lowpass, elliptic, switched-capacitor filters (SCFs) oper-
ate from a single +5V (MAX7400/MAX7403) or +3V
(MAX7404/MAX7407) supply. These devices draw 2mA
of supply current and allow corner frequencies from
1Hz to 10kHz, making them ideal for low-power anti-
aliasing and post-DAC filtering applications. They fea-
ture a shutdown mode that reduces the 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. In addition,
an offset adjustment pin (OS) allows for the adjustment
of the DC output level.
The MAX7400/MAX7404 provide 82dB of stopband
rejection and a sharp rolloff with a transition ratio of 1.5.
The MAX7403/MAX7407 provide a sharper rolloff with a
transition ratio of 1.2, while still delivering 60dB of stop-
band rejection. The fixed response of these devices
simplifies the design task to corner-frequency selection
by setting a clock frequency. The MAX7400/
MAX7403/MAX7404/MAX7407 are available in 8-pin SO
and DIP packages.
Applic ations
ADC Anti-Aliasing
Speech Processing
Post-DAC Filtering
Air-Bag Electronics
CT2 Base Stations
Features
o
8th-Order Lowpass Elliptic Filter
o
Low Noise and Distortion
-82dB THD + Noise (MAX7400)
o
Clock-Tunable Corner Frequency (1Hz to 10kHz)
o
100:1 Clock-to-Corner Ratio
o
Single-Supply Operation
+5V (MAX7400/MAX7403)
+3V (MAX7404/MAX7407)
o
Low Power
2mA (Operating Mode)
0.2μA (Shutdown Mode)
o
Available in 8-Pin SO and DIP Packages
o
Low Output Offset: ±5mV
M
8th-Order, Lowpass, Elliptic ,
S witc hed-Capac itor Filters
________________________________________________________________ Maxim Integrated Products
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
1
V
DD
IN
CLK
OUT
GND
INPUT
0.1
μ
F
0.1
μ
F
CLOCK
SHDN
OUTPUT
V
SUPPLY
COM
OS
MAX7400
MAX7403
MAX7404
MAX7407
OS
OUT
V
DD
1
2
8
7
CLK
SHDN
IN
GND
COM
SO/DIP
TOP VIEW
3
4
6
5
MAX7400
MAX7403
MAX7404
MAX7407
Typic al Operating Circ uit
19-4764; Rev 2; 6/99
Ordering Information continued at end of data sheet.
Pin Configuration
Ordering Information
S elec tor Guide
MAX7407
Elliptic (r = 1.2)
+3
PART
FILTER RESPONSE
OPERATING
VOLTAGE (V)
MAX7403
MAX7404
MAX7400
Elliptic (r = 1.5)
Elliptic (r = 1.2)
Elliptic (r = 1.5)
+5
+5
+3
PART
MAX7400
CSA
MAX7400CPA
MAX7400ESA
MAX7400EPA
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
8 SO
8 Plastic DIP
8 SO
8 Plastic DIP
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