5th-Order, Lowpass,

Switched-Capacitor Filters

2

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—MAX7409/MAX7410

(VDD = +5V, filter output measured at OUT, 10kΩ || 50pF load to GND at OUT, OS = COM, 0.1µF capacitor from COM to GND,

SHDN = VDD, 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...................................................1sec

Continuous Power Dissipation (TA = +70°C)

8-Pin DIP (derate 9.09mW/°C above +70°C) ...............727mW

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

Operating Temperature Ranges

MAX74 _ _C_A ...................................................0°C to +70°C

MAX74 _ _E_A ................................................-40°C to +85°C

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

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

COSC = 1000pF (Note 3)

VOS = 0 to VDD

SHDN = GND, VCOM = 0 to VDD

(Note 1)

Input, COM externally driven

OS to OUT

Input, OS externally driven

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

measurement bandwidth = 22kHz

VIN = VCOM = VDD / 2

VCOM = VDD / 2 (Note 2)

Output, COM unconnected

CONDITIONS

21

30

38

fOSC

Internal Oscillator Frequency

±0.1

±10

Input Leakage Current at OS

±0.1

±10

Input Leakage Current at COM

50

500

CL

10

1

RL

Resistive Output Load Drive

5

Clock Feedthrough

110

180

RCOM

Input Resistance at COM

VCOM ±0.1

VOS

2.3

2.5

2.7

100:1

fCLK / fc

Clock-to-Corner Ratio

0.001 to 15

fc

Corner Frequency

VCOM

1

AOS

Offset Voltage Gain

-85

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

-0.2

0

0.2

DC Insertion Gain with

Output Offset Removed

MIN

TYP

MAX

SYMBOL

PARAMETER

VCLK = 0 or 5V

0.5

VIL

Clock Input Low

4.5

VIH

Clock Input High

±13.5

±20

ICLK

Clock Output Current

(Internal Oscillator Mode)

V

V

µA

kHz

µA

µA

pF

k

Ω

mVp-p

k

Ω

V

V

V/V

dB

dB

mV

V

ppm/°C

kHz

UNITS

Maximum Capacitive Output

Load Drive

FILTER CHARACTERISTICS

CLOCK

MAX7409

MAX7410

-78

COM Voltage Range

2.0

2.5

3.0

Input Voltage Range at OS