MAX7480ESA+ Maxim Integrated Products, MAX7480ESA+ Datasheet

IC FILTER LOWPASS 8TH 8-SOIC

MAX7480ESA+

Manufacturer Part Number
MAX7480ESA+
Description
IC FILTER LOWPASS 8TH 8-SOIC
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX7480ESA+

Filter Type
Butterworth, Lowpass Switched Capacitor
Frequency - Cutoff Or Center
2kHz
Number Of Filters
4
Max-order
8th
Voltage - Supply
4.5 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Number Of Channels
Single
Cutoff Frequency
2 KHz
Supply Voltage (max)
5 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Supply Voltage (min)
4.5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX7480 8th-order, lowpass, Butterworth,
switched-capacitor filter (SCF) operates from a single
+5V supply. The device draws only 2.9mA of supply
current and allows corner frequencies from 1Hz to
2kHz, making it ideal for low-power post-DAC filtering
and anti-aliasing applications. The MAX7480 features a
shutdown mode, which 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 corner-frequency control. An offset
adjust pin allows for adjustment of the DC output level.
The MAX7480 Butterworth filter provides a maximally
flat passband response. The fixed response simplifies
the design task to selecting a clock frequency.
19-1416; Rev 0; 1/99
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.
TOP VIEW
ADC Anti-Aliasing
Post-DAC Filtering
COM
GND
V
DD
IN
________________________________________________________________ Maxim Integrated Products
1
2
4
3
General Description
MAX7480
SO/DIP
Pin Configuration
8th-Order, Lowpass, Butterworth,
Applications
6
8
7
5
CLK
SHDN
OS
OUT
Switched-Capacitor Filter
MAX7480ESA
MAX7480EPA
8th-Order, Lowpass Butterworth Filter
Low Noise and Distortion: -73dB THD + Noise
Clock-Tunable Corner Frequency (1Hz to 2kHz)
100:1 Clock-to-Corner Ratio
+5V Single-Supply Operation
Low Power
Available in 8-Pin SO/DIP Package
Low Output Offset: ±5mV
PART
2.9mA (Operating Mode)
0.2µA (Shutdown Mode)
V
SUPPLY
CLOCK
0.1 F
INPUT
Typical Operating Circuit
-40°C to +85°C
-40°C to +85°C
IN
CLK
TEMP. RANGE
Ordering Information
MAX7480
V
GND
DD
SHDN
COM
OUT
OS
8 SO
8 Plastic DIP
PIN-PACKAGE
Features
OUTPUT
0.1 F
1

Related parts for MAX7480ESA+

MAX7480ESA+ Summary of contents

Page 1

... MAX7480 GND SO/DIP ________________________________________________________________ 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. 8th-Order, Lowpass, Butterworth, Switched-Capacitor Filter 8th-Order, Lowpass Butterworth Filter Low Noise and Distortion: -73dB THD + Noise Clock-Tunable Corner Frequency (1Hz to 2kHz) ...

Page 2

Lowpass, Butterworth, Switched-Capacitor Filter ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V DD IN, OUT, COM, OS, CLK ............................-0. SHDN........................................................................-0.3V to +6V OUT Short-Circuit Duration...................................................1sec Continuous Power Dissipation (T = +70°C) A 8-Pin SO (derate 5.88mW/°C ...

Page 3

ELECTRICAL CHARACTERISTICS (continued) = +5V, filter output measured at OUT, 10kΩ || 50pF load to GND at OUT COM, 0.1µF from COM to GND, SHDN = ( 100kHz ...

Page 4

Lowpass, Butterworth, Switched-Capacitor Filter = 100kHz, SHDN = +5V CLK DD FREQUENCY RESPONSE 1kHz C 0 -20 -40 -60 -80 -100 -120 0 0.5 1.0 1.5 2.0 2.5 3.0 ...

Page 5

SHDN = +5V, f CLK DD DD NORMALIZED OSCILLATOR FREQUENCY vs. TEMPERATURE 1.03 C 1.02 1.01 1 0.99 0.98 0.97 -40 - TEMPERATURE (°C) _______________________________________________________________________________________ 8th-Order, Lowpass, Butterworth, Switched-Capacitor Filter Typical ...

Page 6

Lowpass, Butterworth, Switched-Capacitor Filter PIN NAME Common Input Pin. Biased internally at mid-supply. Bypass externally to GND with a 0.1µF capacitor COM override internal biasing, drive with an external supply Filter Input 3 GND Ground ...

Page 7

The MAX7480 SCF is designed for use with external clocks that have a 40% to 60% duty cycle. When using an external clock with these devices, drive CLK with a CMOS gate powered from the external ...

Page 8

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 8 © ...

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