MAX7401 查看數據表（PDF） - Maxim Integrated

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MAX7401

8th-Order, Lowpass, Bessel, Switched-Capacitor Filters

Maxim Integrated 

8th-Order, Lowpass, Bessel,

Switched-Capacitor Filters

ELECTRICAL CHARACTERISTICS—MAX7401 (continued)

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

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

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

POWER REQUIREMENTS

Supply Voltage

Supply Current

Shutdown Current

Power-Supply Rejection Ratio

VDD

IDD

I SHDN

PSRR

Operating mode, no load, IN = OS = COM

SHDN = GND, CLK driven from 0 to VDD

Measured at DC

4.5

5.5

V

2

3.5

mA

0.2

1

µA

60

dB

SHUTDOWN

SHDN Input High

SHDN Input Low

SHDN Input Leakage Current

VSDH

VSDL

V SHDN = 0 to VDD

VDD - 0.5

V

0.5

V

±0.1 ±10

µA

ELECTRICAL CHARACTERISTICS—MAX7405

(VDD = +3V, filter output measured at OUT, 10kΩ || 50pF load to GND at OUT, OS = COM, 0.1µF from COM to GND,

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

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

FILTER CHARACTERISTICS

Corner Frequency

Clock-to-Corner Ratio

Clock-to-Corner Tempco

fC

fCLK/fC

(Note 1)

0.001 to 5

100:1

10

kHz

ppm/°C

Output Voltage Range

Output Offset Voltage

VOFFSET VIN = VCOM = VDD / 2

0.25

VDD - 0.25 V

±5

±25

mV

DC Insertion Gain with

Output Offset Removed

VCOM = VDD / 2 (Note 2)

-0.1

0.03

0.3

dB

Total Harmonic Distortion

plus Noise

OS Voltage Gain to OUT

Input Voltage Range at OS

COM Voltage Range

Input Resistance at COM

Clock Feedthrough

Resistance Output Load Drive

Maximum Capacitive

Load at OUT

Input Leakage Current at COM

Input Leakage Current at OS

THD+N

AOS

VOS

fIN = 200Hz, VIN = 2.5Vp-p,

measurement bandwidth = 22kHz

VCOM COM internally biased or externally driven

RCOM

RL

CL

SHDN = GND, VCOM = 0 to VDD

VOS = 0 to (VDD - 1V) (Note 3)

-84

dB

1

VCOM ±0.1

VDD / 2

- 0.1

VDD / 2

VDD / 2

+ 0.1

75

125

10

10

1

V/ V

V

V

kΩ

mVp-p

kΩ

50

500

pF

±0.1 ±10

µA

±0.1 ±10

µA

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