MAX7426 데이터 시트보기 (PDF) - Maxim Integrated

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MAX7426

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

Maxim Integrated 

5th-Order, Lowpass, Elliptic,

Switched-Capacitor Filters

ELECTRICAL CHARACTERISTICS—MAX7426 (continued)

(VDD = +5V, filter output measured at OUT, 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.)

PARAMETER

POWER REQUIREMENTS

Supply Voltage

Supply Current

Shutdown Current

Power-Supply Rejection Ratio

SHUTDOWN

SHDN Input High

SHDN Input Low

SHDN Input Leakage Current

SYMBOL

CONDITIONS

VDD

IDD

ISHDN

PSRR

Operating mode, no load

SHDN = GND

Measured at DC

VSDH

VSDL

V SHDN = 0 to VDD

MIN

TYP MAX UNITS

4.5

5.5

V

0.8

1.0

mA

0.2

1

µA

70

dB

4.5

V

0.5

V

±0.2

±10

µA

ELECTRICAL CHARACTERISTICS—MAX7427

(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.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP MAX UNITS

FILTER CHARACTERISTICS

Corner-Frequency Range

fC

(Note 1)

0.001 to 12

kHz

Clock-to-Corner Ratio

fCLK/fC

100:1

Clock-to-Corner Tempco

10

ppm/°C

Output Voltage Range

0.25

VDD - 0.25

V

Output Offset Voltage

VOFFSET VIN = VCOM = VDD / 2

±4

±25

mV

DC Insertion Gain with Output

Offset Removed

VCOM = VDD / 2 (Note 2)

0

0.2

0.4

dB

Total Harmonic Distortion plus

Noise

THD+N

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

measurement bandwidth = 22kHz

-79

dB

Offset Voltage Gain

COM Voltage Range

Input Voltage Range at OS

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

AOS

VCOM

VOS

RCOM

RL

CL

OS to OUT

Measured with respect to COM

TA = +25°C

SHDN = GND, VCOM = 0 to VDD

VOS = 0 to VDD

VDD

2

-

0.1

90

10

+1

VDD

2

±0.1

130

3

1

V/V

VDD

2

+

0.1

V

V

kΩ

mVp-p

kΩ

50

500

pF

±0.2

±10

µA

±0.2

±10

µA

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