MAX3381ECUP 데이터 시트보기 (PDF) - Maxim Integrated

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MAX3381ECUP

+2.35V to +5.5V, 1µA, 2Tx/2Rx RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins

Maxim Integrated 

+2.35V to +5.5V, 1µA, 2Tx/2Rx RS-232 Transceivers

with ±15kV ESD-Protected I/O and Logic Pins

TIMING CHARACTERISTICS

(VCC = +2.35V to +5.5V, VL = +1.65V to +5.5V. When VCC < +4.5V, C1 = C2 = C3 = C4 = 0.1µF; when VCC ≥ +4.5V, C1 = 0.047µF,

C2 = C3 = C4 = 0.33µF; TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = VL = +3.3V, TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

Maximum Data Rate

RL = 3kΩ, CL = 1000pF, one MAX3381E

250

transmitter switching

MAX3380E

460

Receiver Propagation Delay

Transmitter Skew

Receiver Skew

tPLH

tPHL

Receiver input to receiver output, CL = 100pF

tPHL- tPLH (Note 2)

tPHL- tPLH

Transition Region Slew Rate

(MAX3380E)

VCC = +4.2V, -3.0V < T_OUT< +3.0V,

RL = 3kΩ, CL = 250pF to 1000pF, TA = +25°C

20

TYP

0.15

0.15

200

50

MAX UNITS

kbps

µs

ns

ns

100 V/µs

Transition Region Slew Rate

(MAX3381E)

VCC = +4.2V, -3.0V < T_OUT< +3.0V,

RL = 3kΩ, CL = 150pF to 1000pF, TA = +25°C

6

30 V/µs

Transition Region Slew Rate

(MAX3380E)

VCC = +2.35V, -3.0V < T_OUT< +3.0V,

RL = 3kΩ, CL = 250pF to 1000pF, TA = +25°C

30

V/µs

Transition Region Slew Rate

(MAX3381E)

VCC = +2.35V, -3.0V < T_OUT< +3.0V,

RL = 3kΩ, CL = 250pF to 1000pF, TA = +25°C

10

V/µs

Note 2: Transmitter skew is measured at the transmitter zero crosspoint.

Typical Operating Characteristics

(VCC = VL = +4.2V, C1 = 0.22µF, C2 = C3 = C4 = 1µF, C5 = 0.1µF parallel with 47µF, RL = 3kΩ, CL = 1000pF, data rate is 250kbps,

TA = +25°C, unless otherwise noted.)

TRANSMITTER OUTPUT VOLTAGE

vs. LOAD CAPACITANCE

8

VCC = +4.2V

6

VOUT+

4

2

0

-2

-4

-6

0

VOUT-

500 1000 1500 2000 2500 3000

LOAD CAPACITANCE (pF)

TRANSMITTER OUTPUT VOLTAGE

vs. LOAD CAPACITANCE

8

VCC = +2.5V

6

VOUT+

4

2

0

-2

VOUT-

-4

-6

0 500 1000 1500 2000 2500 3000

LOAD CAPACITANCE (pF)

MAX3380E

SLEW RATE vs. LOAD CAPACITANCE

40

35

30

25

20

VCC = +4.2V

15

10

VCC = +2.5V

5

0

0 500 1000 1500 2000 2500 3000

LOAD CAPACITANCE (pF)

4 _______________________________________________________________________________________

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