MAX7400 Просмотр технического описания (PDF) - Maxim Integrated

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MAX7400

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

Maxim Integrated 

8th-Order, Lowpass, Elliptic,

Switched-Capacitor Filters

ELECTRICAL CHARACTERISTICS—MAX7400/MAX7403 (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

I SHDN

PSRR

Operating mode, no load, IN = OS = COM

SHDN = GND, CLK driven from 0 to VDD

Measured at DC

VSDH

VSDL

V SHDN = 0 to VDD

MIN TYP MAX UNITS

4.5

5.5

V

2

3.5

mA

0.2

1

µA

60

dB

VDD - 0.5

V

0.5

V

±0.1 ±10

µA

ELECTRICAL CHARACTERISTICS—MAX7404/MAX7407

(VDD = +3V, 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

FILTER CHARACTERISTICS

Corner Frequency

Clock-to-Corner Ratio

Clock-to-Corner Tempco

Output Voltage Range

Output Offset Voltage

DC Insertion Gain with Output

Offset Removed

Total Harmonic Distortion

plus Noise

OS Voltage Gain to OUT

Input Voltage Range at OS

SYMBOL

fC

fCLK/fC

(Note 1)

CONDITIONS

VOFFSET VIN = VCOM = VDD / 2

VCOM = VDD / 2 (Note 2)

THD+N

AOS

VOS

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

MAX7404

measurement bandwidth = 22kHz MAX7407

COM Voltage Range

VCOM COM internally biased or externally driven

Input Resistance at COM

Clock Feedthrough

Resistive Output Load Drive

Maximum Capacitive Load

at OUT

Input Leakage Current at COM

Input Leakage Current at OS

RCOM

RL

CL

SHDN = GND, VCOM = 0 to VDD

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

MIN TYP MAX UNITS

0.001 to 10

kHz

100:1

10

ppm/°C

0.25

VDD - 0.25 V

±5

±25

mV

-0.1

0.1

0.3

dB

-79

-77

1

VCOM ±0.1

VDD / 2

- 0.1

VDD / 2

VDD / 2

+ 0.1

75

125

10

10

1

dB

V/V

V

V

kΩ

mVp-p

kΩ

50

500

pF

±0.1 ±10

µA

±0.1 ±10

µA

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