LTC485 datasheet(3/12 Pages) LINER

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LTC485

sn 485LTC485ffs

The

● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C.VCC = 5V ±5%, unless otherwise noted. (Notes 2 and 3)

Note 1: Absolute maximum ratings are those beyond which the safety of

the device cannot be guaranteed.

Note 2: All currents into device pins are positive; all currents out ot device

pins are negative. All voltages are referenced to device ground unless

otherwise specified.

Note 3: All typicals are given for VCC = 5V and TA = 25°C.

Note 4: The LTC485 is guaranteed by design to be functional over a supply

voltage range of 5V

±10%. Data sheet parameters are guaranteed over the

tested supply voltage range of 5V

±5%.

TYPICAL PERFOR A CE CHARACTERISTICS

Receiver Output High Voltage

vs Output Current

Receiver Output Low Voltage

vs Output Current

OUTPUT VOLTAGE (V)

1.0

LTC485 • TPC01

0.5

2.0

1.5

TA = 25°C

OUTPUT VOLTAGE (V)

–2

–6

–8

–10

–18

LTC485 • TPC02

–4

–12

–14

–16

TA = 25°C

TEMPERATURE (°C)

–50

3.0

3.2

3.6

3.8

4.0

4.8

LTC485 • TPC03

3.4

125

4.2

4.4

4.6

–25

100

I = 8mA

Receiver Output High Voltage

vs Temperature

SWITCHI G CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

ICC

Supply Current

No Load, Pins 2,

Outputs Enabled

●

500

900

µA

3, 4 = 0V or 5V

Outputs Disabled

●

300

500

µA

IOSD1

Driver Short-Circuit Current, VOUT = HIGH

VO = – 7V

●

100

250

IOSD2

Driver Short-Circuit Current, VOUT = LOW

VO = 10V

●

100

250

IOSR

Receiver Short-Circuit Current

≤ VO ≤ VCC

●

785

tPLH

Driver Input to Output

RDIFF = 54Ω, CL1 = CL2 = 100pF,

●

tPHL

Driver Input to Output

(Figures 3 and 5)

●

tSKEW

Driver Output to Output

●

510

tr, tf

Driver Rise or Fall Time

●

315

tZH

Driver Enable to Output High

CL = 100pF (Figures 4 and 6) S2 Closed

●

tZL

Driver Enable to Output Low

CL = 100pF (Figures 4 and 6) S1 Closed

●

tLZ

Driver Disable Time from Low

CL = 15pF (Figures 4 and 6) S1 Closed

●

tHZ

Driver Disable Time from High

CL = 15pF (Figures 4 and 6) S2 Closed

●

tPLH

Receiver Input to Output

RDIFF = 54Ω, CL1 = CL2 = 100pF,

●

200

tPHL

(Figures 3 and 7)

●

200

tSKD

⏐tPLH – tPHL⏐ Differential Receiver Skew

●

tZL

Receiver Enable to Output Low

CRL = 15pF (Figures 2 and 8) S1 Closed

●

tZH

Receiver Enable to Output High

CRL = 15pF (Figures 2 and 8) S2 Closed

●

tLZ

Receiver Disable from Low

CRL = 15pF (Figures 2 and 8) S1 Closed

●

tHZ

Receiver Disable from High

CRL = 15pF (Figures 2 and 8) S2 Closed

●

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