LTC1385 datasheet(3/8 Pages) LINER

部件名	LTC1385

功能描述	3.3V Low Power EIA/TIA-562 Transceiver

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制造商	LINER [Linear Technology]

网页	http://www.linear.com

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LTC1385

ELECTRICAL C

C

HARA TERISTICS

C

D

VCC = 3.3V, C1 = C2 = C3 = C4 = 0.1µF, VON/OFF = VCC, Driver Disable = VCC, unless otherwise noted.

CC

HARA TERISTICS

AC

VCC = 3.3V, C1 = C2 = C3 = C4 = 0.1µF, unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Slew Rate

RL = 3k, CL = 51pF

8

30

V/

µs

RL = 3k, CL = 1000pF

3

5

V/

µs

Driver Propagation Delay

tHLD (Figure 1)

q

2

3.5

µs

(TTL to EIA / TIA-562)

tLHD (Figure 1)

q

2

3.5

µs

Receiver Propagation Delay

tHLR (Figure 2)

q

0.3

0.8

µs

(EIA / TIA-562 to TTL)

tLHR (Figure 2)

q

0.2

0.8

µs

The q denotes specifications which apply over the operating temperature

range 0

°C ≤ TA ≤ 70°C.

Note 1: Absolute maximum ratings are those values beyond which the life

of the device may be impaired.

Note 2: Supply current is measured with driver and receiver outputs

unloaded.

Note 3: Measurements made in the Driver Disable mode are performed

with VDRIVER DISABLE = GND and VON/OFF = VCC.

Note 4: Measurements made in the Shutdown mode are performed with

VON/OFF = 0V.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Any Receiver

Input Voltage Thresholds

Input Low Threshold

q

0.8

1.3

V

Input High Threshold

q

1.7

2.4

V

Hysteresis

q

0.1

0.4

1.0

V

Input Resistance

– 10V

≤ VIN ≤ 10V

3

5

7

k

Ω

Output Voltage

Output Low, IOUT = – 1.6mA (VCC = 3.3V)

q

0.2

0.4

V

Output High, IOUT = 160µA (VCC = 3.3V)

q

3.0

3.2

V

Output Short-Circuit Current

Sinking Current, VOUT = VCC

–5

–20

mA

Sourcing Current, VOUT = 0V

2

7

mA

Output Leakage Current

Shutdown (Note 4), 0V

≤ VOUT ≤ VCC

q

110

µA

Power Supply Generator

V+ Output Voltage

IOUT = 0mA

5.7

V

IOUT = 5mA

5.5

V

V– Output Voltage

IOUT = 0mA

– 5.3

V

IOUT = – 5mA

– 5.0

V

Supply Rise Time

Shutdown or Driver Disable to Turn-On

0.2

ms

Power Supply

VCC Supply Current

No Load (Note 2)

q

0.2

0.5

mA

Supply Leakage Current (VCC)

Shutdown (Note 4)

q

0.2

10

µA

Driver Disable (Note 3)

q

35

50

µA

Digital Input Threshold Low

q

1.4

0.8

V

Digital Input Threshold High

q

2.0

1.4

V

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