AD7306JN datasheet(2/8 Pages) AD

Nome de Peças	AD7306JN

Descrição Electrónicos	5 V Powered RS-232/RS-422 Transceiver

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Fabricante Electrônico	AD [Analog Devices]

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REV. B

–2–

AD7306–SPECIFICATIONS

(VCC = +5 V

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

F. All specifications TMIN to

TMAX unless otherwise noted.)

Parameter

Min

Typ

Max

Units

Test Conditions/Comments

RS-232 DRIVER

TTL Input Logic Low, VINL

0.8

V

TTL Input Logic High, VINH

2.0

V

Input Logic Current

0.1

±10

µAV

IN = 0 V to VCC

RS-232 High Level Output Voltage

5.0

7.3

V

RL = 3 k

Ω

RS-232 Low Level Output Voltage

–5.0

–6.5

V

RL = 3 k

Ω

Output Short Circuit Current

±5

±12

mA

VOUT = 0 V, TA = 0°C to +70°C

Slew Rate

8

20

30

V/

µsC

L = 50 pF, RL = 3 k

Ω

4V/

µsC

L = 2500 pF, RL = 3 k

Ω

Output Resistance (Powered Down)

300

10M

Ω

VCC = 0 V, VOUT = ± 3 V

RS-232 RECEIVER

Input Voltage Range

–15

+15

V

RS-232 Input Threshold Low

0.8

1.3

V

RS-232 Input Threshold High

1.7

2.4

V

RS-232 Input Hysteresis

0.1

0.4

1.0

V

RS-232 Input Resistance

3

5

7

k

Ω

TTL Output Voltage Low, VOL

0.2

0.4

V

IOUT = +4 mA

TTL Output Voltage High, VOH

3.5

4.8

V

IOUT = –4 mA

RS-422 DRIVER

TTL Input Logic Low, VINL

0.8

V

TTL Input Logic High, VINH

2.0

V

Logic Input Current

0.1

±10

µAV

IN = 0 V to VCC

Differential Output Voltage

5.0

V

VCC = 5 V, RL Diff =

∞; Figure 3

2V

RL Diff = 100

Ω; Figure 3

Common-Mode Output Voltage

3

V

∆|V

OUT| for Complementary O/P States

0.2

V

RL Diff = 100

Ω

Output Short Circuit Current

35

150

mA

0 V

≤ V

CMR

≤ +7 V

RS-422 RECEIVER

Common-Mode Voltage Range

±7

V

Typical RS-422 Input Voltage <5 V

Differential Input Threshold Voltage

–0.2

+0.2

V

Input Voltage Hysteresis

70

mV

VCM = 0 V

Input Resistance

3

5

7

k

Ω

TTL Output Voltage Low, VOL

0.2

0.4

V

IOUT = +4.0 mA

TTL Output Voltage High, VOH

3.5

4.8

V

IOUT = –4.0 mA

232/422 SEL Input

Input Logic Low, VINL

0.8

V

Input Logic High, VINH

2.0

V

Logic Input Current

0.1

±10

µAV

IN = 0 V to VCC

POWER SUPPLY CURRENT

ICC

10

15

mA

Outputs Unloaded

CHARGE PUMP VOLTAGE GENERATOR

V+ Output Voltage

9

V

RS-232 Output Unloaded;

See Typical Performance Curves

V– Output Voltage

–9

V

RS-232 Outputs Unloaded;

See Typical Performance Curves

Generator Rise Time

200

µs

Specifications subject to change without notice.

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