4

LTC1686/LTC1687

ELECTRICAL CHARACTERISTICS

temperature range.

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

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

device pins are negative.

Note 4: Guaranteed by design, but not tested.

Note 5: Short-circuit current does not represent output drive capability.

When the output detects a short-circuit condition, output drive current is

significantly reduced (from hundreds of mA to 20mA max) until the short

is removed.

FREQUENCY (Hz)

10

42.0

42.5

43.5

44.0

44.5

46.5

1686/87 G01

43.0

1k

100k

1M

45.0

45.5

46.0

Receiver Input CMRR

TEMPERATURE (

°C)

–25

53

54

55

50

100

1686/87 G03

52

51

50

025

75

56

57

58

BOTH DRIVER AND RECEIVER

ENABLED AND LOADED

25Mbps DATA RATE

DATA RATE (Mbps)

1

50

60

70

40

30

1686/87 G02

40

30

10

20

50

20

10

0

BOTH DRIVER AND RECEIVER

ENABLED AND LOADED

Supply Current vs Data Rate

Supply Current vs Temperature

Receiver Propagation Delay

vs Load Capacitance

Receiver Propagation Delay

vs Common Mode

LOAD CAPACITANCE (pF)

5

0

5

10

15

20

30

15

25

35

55

1686/87 G04

105

205

25

RECEIVER COMMON MODE (V)

–7

0

5

15

20

25

–2

2

412

1686/87 G05

10

–4

0

6

8

10

Receiver Propagation Delay

vs Input Overdrive

RECEIVER INPUT OVERDRIVE (V)

0.3

0.5

0

10

25

0.7

1.25

1.5

1686/87 G06

5

20

15

1.0

2.0

2.5