MAX7427CPA datasheet(2/12 Pages) MAXIM

Part #	MAX7427CPA

Description	5th-Order, Lowpass, Elliptic, Switched-Capacitor Filters

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Manufacturer	MAXIM [Maxim Integrated Products]

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5th-Order, Lowpass, Elliptic,

Switched-Capacitor Filters

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—MAX7426

(VDD = +5V, filter output measured at OUT, 10k

Ω || 50pF load to GND at OUT, SHDN = VDD, OS = COM, 0.1µF from COM to GND,

fCLK = 100kHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

VDD to GND ..............................................................-0.3V to +6V

IN, OUT, COM, OS, CLK, SHDN ................-0.3V to (VDD + 0.3V)

OUT Short-Circuit Duration.......................................................1s

Continuous Power Dissipation (TA = +70°C)

8-Pin µMAX (derate 4.1mW/°C above +70°C) .............330mW

8-Pin PDIP (derate 6.90mW/°C above +70°C).............552mW

Operating Temperature Ranges

MAX742 _C_A ....................................................0°C to +70°C

MAX742 _E_A .................................................-40°C to +85°C

Storage Temperature Range .............................-65°C to +160°C

Lead Temperature (soldering, 10s) .................................+300°C

COSC = 1000pF (Note 3)

VOS = 0 to VDD

SHDN = GND, VCOM = 0 to VDD

(Note 1)

TA = +25°C

Input, COM externally driven

OS to OUT

Measured with respect to COM

fIN = 200Hz, VIN = 4Vp-p,

measurement bandwidth = 22kHz

VIN = VCOM = VDD / 2

VCOM = VDD / 2 (Note 2)

Output, COM internally driven

CONDITIONS

13.5

17.5

21.5

fOSC

Internal Oscillator Frequency

±0.2

±10

Input Leakage Current at OS

±0.2

±10

Input Leakage Current at COM

50

500

CL

10

1

RL

Resistive Output Load Drive

5

Clock Feedthrough

90

130

RCOM

Input Resistance at COM

±0.1

VOS

Input Voltage Range at OS

VDD

- 0.2

VDD

+ 0.2

2

100:1

fCLK/fC

Clock-to-Corner Ratio

0.001 to 9

fC

Corner-Frequency Range

VDD

- 0.5

VDD

+ 0.5

2

VCOM

COM Voltage Range

+1

AOS

Offset Voltage Gain

-81

THD+N

Total Harmonic Distortion plus

Noise

10

Clock-to-Corner Tempco

0.25

VDD - 0.25

Output Voltage Range

±4

±25

VOFFSET

Output Offset Voltage

0

0.2

0.4

DC Insertion Gain with Output

Offset Removed

MIN

TYP

MAX

SYMBOL

PARAMETER

0.5

VIL

Clock Input Low

4.5

VIH

Clock Input High

±8

±12.5

ICLK

Clock Output Current

(internal oscillator mode)

V

µA

kHz

µA

pF

k

Ω

mVp-p

k

Ω

V

V/V

dB

mV

V

ppm/°C

kHz

UNITS

Maximum Capacitive Load

at OUT

FILTER

CLOCK

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