AD7306 datasheet(3/10 Pages) AD

3 / 10 page

AD7306

REV. D

–3–

Parameter

Typ

Max

Units

Test Conditions/Comments

RS-422 Driver

Propagation Delay Input to Output TPLH, TPHL

100

RL Diff = 100

Ω. C

L1 = CL2 = 100 pF, Figures 2 & 4

RS-422 O/P to O/P TSKEW

210

RL Diff = 100 Ω. CL1 = CL2 = 100 pF, Figures 2 & 4

Driver Rise/Fall Time TR, TF

RL Diff = 100

Ω. C

L1 = CL2 = 100 pF, Figures 2 & 4

RS-422 Receiver

Propagation Delay Input to Output TPLH, TPHL

200

CL = 15 pF. Figure 5

RS-232/RS-422 Enable

RS-232 Disable to RS-422 Enable TEN1

200

Figure 6

RS-422 Disable to RS-232 Enable TEN2

200

Figure 6

Transmission Rate (RS-422)

MHz

RS-232 Receiver

Propagation Delay Input to Output

1000

Transmission Rate (RS-232)

100

kHz

CL = 50 pF

kHz

CL = 2.5 nF

TIMING SPECIFICATIONS

(VCC = +5 V

5%, C1 = C2 = C3 = C4 = 0.1

F. All specifications TMIN to TMAX

unless otherwise noted.)

ABSOLUTE MAXIMUM RATINGS*

(TA = +25°C unless otherwise noted)

VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V

V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . (VCC –0.3 V) to +13.2 V

V– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –13.2 V

Inputs

T1IN, T2IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V– to V+

T3IN

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to V+

R1IN A/B, R2IN . . . . . . . . . . . . . . . . . . . . . . . –25 V to +25 V

232/422 SEL . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to V+

Outputs

T1OUT, T2OUT . . . . . . . . . . . . . . . . . . . . . . . –15 V to +15 V

T3OUT(A), (B) . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V

R1OUT, R2OUT . . . . . . . . . . . . . . . . –0.3 V to (VCC + 0.3 V)

Short Circuit Duration

TOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous

Power Dissipation

Small Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650 mW

DIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650 mW

Operating Temperature Range

Commercial (J Version) . . . . . . . . . . . . . . . . . 0

°C to +70°C

Industrial (A Version) . . . . . . . . . . . . . . . . –40

°C to +85°C

Storage Temperature Range . . . . . . . . . . . . –65

°C to +150°C

Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . +300

°C

*Stresses above those listed under “Absolute Maximum Ratings” may cause

permanent damage to the device. This is a stress rating only and functional

operation of the device at these or any other conditions above those listed in the

operational sections of this specification is not implied. Exposure to absolute

maximum ratings for extended periods of time may affect device reliability.

WARNING!

ESD SENSITIVE DEVICE

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily

accumulate on the human body and test equipment and can discharge without detection.

Although the AD7306 features proprietary ESD protection circuitry, permanent damage may

occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD

precautions are recommended to avoid performance degradation or loss of functionality.

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