(VDD = +5V for MAX7418–MAX7421, VDD = +3V for MAX7422–MAX7425; fCLK = 2.2MHz; SHDN = VDD; VCOM = VOS = VDD / 2;

TA = +25°C; unless otherwise noted.)

Analog Devices │ 6

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MAX7418–MAX7425

5th-Order, Lowpass,

Switched-Capacitor Filters

-90

-60

-70

-80

-50

-40

-30

-20

-10

0

10

0

40

20

60

80

100

MAX7418/MAX7422

FREQUENCY RESPONSE (ELLIPTIC, R = 1.6)

INPUT FREQUENCY (kHz)

-90

-60

-70

-80

-50

-40

-30

-20

-10

0

10

0

40

20

60

80

100

MAX7421/MAX7425

FREQUENCY RESPONSE (ELLIPTIC, R = 1.25)

INPUT FREQUENCY (kHz)

-4.0

-3.0

-3.5

-1.5

-2.0

-2.5

0

-0.5

-1.0

0.5

0

9.0

4.5

13.5

18.0

22.5

MAX7420/MAX7424

PASSBAND FREQUENCY RESPONSE

(BUTTERWORTH)

INPUT FREQUENCY (kHz)

-60

-40

-50

-20

-30

0

-10

10

0

40

20

60

80

100

MAX7419/MAX7423

FREQUENCY RESPONSE (BESSEL)

INPUT FREQUENCY (kHz)

-1.0

-0.6

-0.8

-0.2

-0.4

0.2

0

0.4

0

9.0

4.5

13.5

18.0

22.5

MAX7418/MAX7422

PASSBAND FREQUENCY RESPONSE

(ELLIPTIC, R = 1.6)

INPUT FREQUENCY (kHz)

-1.0

-0.6

-0.8

-0.2

-0.4

0.2

0

0.4

0

9.0

4.5

13.5

18.0

22.5

MAX7421/MAX7425

PASSBAND FREQUENCY RESPONSE

(ELLIPTIC, R = 1.25)

INPUT FREQUENCY (kHz)

-80

-60

-70

-30

-40

-50

0

-10

-20

10

0

40

20

60

80

100

MAX7420/MAX7424

FREQUENCY RESPONSE (BUTTERWORTH)

INPUT FREQUENCY (kHz)

-4.0

-3.0

-3.5

-1.5

-2.0

-2.5

0

-0.5

-1.0

0.5

0

9.0

4.5

13.5

18.0

22.5

MAX7419/MAX7423

PASSBAND FREQUENCY RESPONSE

(BESSEL)

INPUT FREQUENCY (kHz)

-450

-350

-400

-200

-250

-300

-50

-100

-150

0

0

8

12

4

16

20

24

28

MAX7418/MAX7422

PHASE RESPONSE (ELLIPTIC, R = 1.6)

INPUT FREQUENCY (kHz)

Typical Operating Characteristics