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LTC490IS8

Differential Driver and Receiver Pair

Linear Technology 

LTC490

U

SWITCHI G CHARACTERISTICS

The q denotes the specificatiions which apply over the full

operating temperature range, otherwise specifications are at TA = 25°C. VCC = 5V ±5%

SYMBOL PARAMETER

CONDITIONS

MIN TYP MAX

tPLH

tPHL

tSKEW

tr, tf

tPLH

tPHL

tSKD

Driver Input to Output

Driver Input to Output

Driver Output to Output

Driver Rise or Fall Time

Receiver Input to Output

Receiver Input to Output

 tPLH – tPHL Differential Receiver Skew

RDIFF = 54Ω, CL1 = CL2 = 100pF (Figures 2, 3) q

10

30

50

RDIFF = 54Ω, CL1 = CL2 = 100pF (Figures 2, 3) q

10

30

50

RDIFF = 54Ω, CL1 = CL2 = 100pF (Figures 2, 3) q

5

RDIFF = 54Ω, CL1 = CL2 = 100pF (Figures 2, 3) q

5

5

25

RDIFF = 54Ω, CL1 = CL2 = 100pF (Figures 2, 4) q

40

70 150

RDIFF = 54Ω, CL1 = CL2 = 100pF (Figures 2, 4) q

40

70 150

RDIFF = 54Ω, CL1 = CL2 = 100pF (Figures 2, 4) q

13

UNITS

ns

ns

ns

ns

ns

ns

ns

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 of device

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

otherwise specified.

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

TYPICAL PERFOR A CE CHARACTERISTICS

Driver Output High Voltage

vs Output Current

–96

TA = 25°C

–72

Driver Differential Output Voltage

vs Output Current

64 TA = 25°C

48

– 48

–24

0

0

1

2

3

4

OUTPUT VOLTAGE (V)

LTC490 • TPC01

32

16

0

0

1

2

3

4

OUTPUT VOLTAGE (V)

LTC490 • TPC02

Driver Output Low Voltage

vs Output Current

80 TA = 25°C

60

40

20

0

0

1

2

3

4

OUTPUT VOLTAGE (V)

LTC490 • TPC03

490fb

3

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