ADG451 datasheet(6/12 Pages) AD

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ADG451/ADG452/ADG453

REV. A

–6–

TERMINOLOGY

VDD

Most positive power supply potential.

VSS

Most negative power supply potential in dual

supplies. In single supply applications, it may be

connected to GND.

Logic power supply (+5 V).

GND

Ground (0 V) reference.

Source terminal. May be an input or output.

Drain terminal. May be an input or output.

Logic control input.

RON

Ohmic resistance between D and S.

∆R

On resistance match between any two channels

i.e., RONmax – RONmin.

RFLAT(ON)

Flatness is defined as the difference between the

maximum and minimum value of on-resistance as

measured over the specified analog signal range.

IS (OFF)

Source leakage current with the switch “OFF.”

ID (OFF)

Drain leakage current with the switch “OFF.”

ID, IS (ON)

Channel leakage current with the switch “ON.”

VD (VS)

Analog voltage on terminals D, S.

CS (OFF)

“OFF” switch source capacitance.

CD (OFF)

“OFF” switch drain capacitance.

CD, CS (ON) “ON” switch capacitance.

tON

Delay between applying the digital control input

and the output switching on. See Test Circuit 4.

tOFF

Delay between applying the digital control input

and the output switching off.

“OFF” time or “ON” time measured between

the 90% points of both switches, when switching

from one address state to another. See Test

Circuit 5.

Crosstalk

A measure of unwanted signal coupled through

from one channel to another as a result of para-

sitic capacitance.

Off Isolation

A measure of unwanted signal coupling through

an “OFF” switch.

Charge

A measure of the glitch impulse transferred

Injection

from the digital input to the analog output dur-

ing switching.

VD OR VS DRAIN OR SOURCE VOLTAGE – V

TA = +25 C

VL = +5V

VDD = +5V

VSS = –5V

VDD = +13.5V

VSS = –13.5V

VDD = +16.5V

VSS = –16.5V

VDD = +15V

VSS = –15V

Figure 1. On Resistance as a Function of VD (VS)

for Various Dual Supplies

–10

–5

VD OR VS DRAIN OR SOURCE VOLTAGE – V

–15

+85 C

VDD = +15V

VSS = –15V

VL = +5V

+25 C

–40 C

Figure 2. On Resistance as a Function of VD (VS)

for Different Temperatures with Dual Supplies

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