ADG714 查看數據表（PDF） - Analog Devices

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ADG714

CMOS, Low Voltage Serially Controlled, Octal SPST Switches

Analog Devices 

ADG714/ADG715

VDD

VSS

IDD

ISS

GND

S

D

RON

ΔRON

RFLAT(ON)

IS (OFF)

ID (OFF)

ID, IS (ON)

VD (VS)

CS (OFF)

CD (OFF)

TERMINOLOGY

Most positive power supply potential.

Most negative power supply in a dual supply

application. In single supply applications, this

should be tied to ground.

Positive Supply Current

Negative Supply Current

Ground (0 V) Reference

Source Terminal. May be an input or output.

Drain Terminal. May be an input or output.

Ohmic resistance between D and S

On resistance match between any two channels,

i.e., RON max–RON min.

Flatness is defined as the difference between the

maximum and minimum value of on resistance

as measured over the specified analog signal range.

Source leakage current with the switch “OFF.”

Drain leakage current with the switch “OFF.”

Channel leakage current with the switch “ON.”

Analog voltage on terminals D and S

“OFF” Switch Source Capacitance. Measured

with reference to ground.

“OFF” Switch Drain Capacitance. Measured

with reference to ground.

CD, CS (ON) “ON” Switch Capacitance. Measured with ref-

erence to ground.

CIN

Digital Input Capacitance

tON

Delay time between loading new data to the

shift register and selected switches switching on.

tOFF

Delay time between loading new data to the

shift register and selected switches switching off.

Off Isolation A measure of unwanted signal coupling through

an “OFF” switch.

Crosstalk

A measure of unwanted signal which is coupled

through from one channel to another as a result

of parasitic capacitance.

Charge

Injection

A measure of the glitch impulse transferred

from the digital input to the analog output

during switching.

Bandwidth

The frequency at which the output is attenuated

by –3 dBs.

On Response The frequency response of the “ON” switch.

Insertion Loss The loss due to the ON resistance of the switch.

Insertion Loss = 20 log10 (VOUT with switch/

VOUT without switch.

VINL

Maximum input voltage for Logic 0.

VINH

Minimum input voltage for Logic 1.

IINL(IINH)

Input current of the digital input.

IDD

Positive Supply Current

REV. C

–9–

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