ADM3232E datasheet(3/12 Pages) AD

3 / 12 page

ADM3232E

Rev. 0 | Page 3 of 12

SPECIFICATIONS

VCC = 3.3 V ± 0.3 V, C1 to C4 = 0.1 μF. All specifications TMIN to TMAX, unless otherwise noted.

Table 1.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

DC CHARACTERISTICS

Operating Voltage Range

3.0

3.3

5.5

VCC Power Supply Current

1.3

No load

LOGIC

Input Logic Threshold Low, VINL

0.8

TIN

Input Logic Threshold High, VINH

2.0

TIN

TTL/CMOS Output Voltage Low,

VOL

0.4

IOUT = 1.6 mA

TTLCMOS Output Voltage High,

VOH

VCC − 0.6

IOUT =

−1 mA

Logic Pull-Up Current

μA

TIN = GND to VCC

Transmitter Input Hysteresis

0.5

RS-232 RECEIVER

Input Voltage Range

−30

+30

Input Threshold Low

0.6

1.2

Input Threshold High

1.6

2.4

Input Hysteresis

0.4

Input Resistance

kΩ

RS-232 TRANSMITTER

Output Voltage Swing (RS-232)

±5.0

±5.2

VCC = 3.3 V, all transmitter outputs loaded with 3 kΩ to

ground

Output Voltage Swing (RS-562)

±3.7

VCC = 3.0 V

Transmitter Output Resistance

300

VCC = 0 V, VOUT = ±2 V

Output Short-Circuit Current

(RS-232)

±15

TIMING CHARACTERISTICS

Maximum Data Rate

460

kbps

VCC = 3.3 V, RL = 3 kΩ to 7 kΩ, CL = 50 pF to 1000 pF,

one Tx switching

Receiver Propagation Delay

TPHL

0.4

μs

TPLH

0.4

μs

Transmitter Propagation Delay

300

1.2

μs

RL = 3 kΩ, CL = 1000 pF

Receiver Output Enable Time

200

Receiver Output Disable Time

200

Transmitter Skew

Receiver Skew

300

Transition Region Slew Rate

5.5

V/μs

Measured from +3 V to −3 V or

−3 V to +3 V, VCC = 3.3 V;

RL = 3 kΩ, CL = 1000 pF, TA = 25°C

ESD PROTECTION (RS-232 and

TTL/CMOS I/O PINS)

±15

Human body model

±15

IEC 1000-4-2 air discharge

±8

IEC 1000-4-2 contact discharge

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