MAX14778 查看數據表（PDF） - Maxim Integrated

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产品描述 (功能)

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MAX14778

Dual ±25V Above- and Below-the-Rails 4:1 Analog Multiplexer

Maxim Integrated 

MAX14778

Dual ±25V Above- and Below-the-Rails

4:1 Analog Multiplexer

Test Circuits/Timing Diagrams (continued)

LOGIC

INPUT

Figure 5. Charge Injection

+5V

A_

VDD

B_

MAX14778

ENA

ACOM

ENB

BCOM

GND

VOUT

CL = 1nF

+5V

LOGIC

OFF

ON

OFF

INPUT

0V

VOUT

DVOUT

Q = CL x DVOUT

VDD

0V OR VDD ENA

VIN

A0

SA_ MAX14778

50I

VOUT

ACOM

NETWORK

ANALYZER

50I

50I

MEAS

50I

REF

50I

MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.

OFF-ISOLATION IS MEASURED BETWEEN ACOM AND "OFF" A_ TERMINAL ON EACH MULTIPLEXER.

-3dBW IS MEASURED BETWEEN ACOM AND "ON" A_ TERMINAL ON EACH MULTIPLEXER.

CROSSTALK IS MEASURED FROM ONE CHANNEL TO ALL OTHER CHANNELS.

SIGNAL DIRECTION THROUGH MULTIPLEXER IS REVERSED; WORST VALUES ARE RECORDED.

Figure 6. Off-Isolation, -3dB Bandwidth, and Crosstalk

OFF-ISOLATION = 20log VOUT

VIN

ON-LOSS = 20log VOUT

VIN

CROSSTALK = 20log VOUT

VIN

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