5th-Order, Lowpass, Elliptic,

Switched-Capacitor Filters

4

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COSC = 1000pF (Note 3)

CONDITIONS

19

27

34

fOSC

Internal Oscillator Frequency

MIN

TYP

MAX

SYMBOL

PARAMETER

Measured at DC

SHDN = GND

Operating mode, no load

VCLK = 0 or 3V

0.5

VSDL

SHDN Input Low

2.5

VSDH

SHDN Input High

70

PSRR

Power-Supply Rejection Ratio

0.2

1

ISHDN

Shutdown Current

1.13

1.5

2.7

3.6

VDD

Supply Voltage

0.5

VIL

Clock Input Low

2.5

VIH

Clock Input High

±12

±20

ICLK

Clock Output Current

(Internal Oscillator Mode)

V

V

dB

µA

V

V

V

µA

kHz

UNITS

SHDN Input Leakage Current

V SHDN = 0 to VDD

±0.2

±10

µA

ELECTRICAL CHARACTERISTICS—MAX7412/MAX7415 (continued)

(VDD = +3V, filter output measured at OUT pin, 10kΩ || 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.)

mA

IDD

Supply Current

ELLIPTIC FILTER (r = 1.6) CHARACTERISTICS—MAX7408/MAX7412

(VDD = +5V for MAX7408, VDD = +3V for MAX7412; filter output measured at OUT; 10kΩ || 50pF load to GND at OUT; SHDN = VDD;

VCOM = VOS =VDD / 2; fCLK = 100kHz; TA = TMIN to TMAX; unless otherwise noted. Typical values are at TA = +25°C.) (Note 3)

fIN = 0.63fC

fIN = 0.34fC

fIN = 4.62fC

fIN = 1.90fC

fIN = 1.60fC

fIN = 0.84fC

fIN = 0.96fC

fIN = fC

CONDITIONS

-0.4

0.2

0.4

dB

-0.4

-0.2

0.4

Insertion Gain

with DC Gain Error Removed

(Note 4)

-53.4

-50

-53.4

-50

-53.4

-50

-0.4

-0.2

0.4

-0.4

0.2

0.4

-0.7

-0.2

0.2

UNITS

MIN

TYP

MAX

PARAMETER

CLOCK

POWER REQUIREMENTS

SHUTDOWN