LTC2879X

4

Rev 0

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ELECTRICAL CHARACTERISTICS The

l

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VCC = 5V unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

fMAX

Maximum Data Rate

(Note 3)

l

20

Mbps

Driver

tPLHD, tPHLD

Driver Input to Output

VCC = 3.3V or 5V (Figure 5)

l

13

50

ns

ΔtPD

Driver Input to Output Difference

|tPLHD – tPHLD|

(Figure 5)

l

2

9

ns

tSKEWD

Driver Output A to Output B

(Figure 5)

l

±9

ns

tRD, tFD

Driver Rise or Fall Time

VCC = 3.3V or 5V (Figure 5)

l

4

16

ns

tZLD, tZHD,

tLZD, tHZD

Driver Enable or Disable Time

RE = 0V (Figure 6)

l

180

ns

tZHSD, tZLSD

Driver Enable from Shutdown

RE = High (Figure 6)

l

15

µs

tSHDND

Time to Shutdown with DE

RE = High (Figure 6)

l

180

ns

Receiver

tPLHR, tPHLR

Receiver Input to Output

VCM = 2.25V, (A–B) = ±1.5V,

tR and tF < 4ns, VCC = 3.3V or 5V (Figure 7)

l

50

75

ns

ΔtPR

Receiver Input to Output Difference

|tPLHR – tPHLR|

(Figure 7)

l

2

14

ns

tZLR, tZHR,

tLZR, tHZR

Receiver Enable/Disable Time

DE = High (Figure 8)

l

40

ns

tZHSR, tZLSR

Receiver Enable from Shutdown

DE = 0V, (Figure 9)

l

9

µs

tSHDNR

Time to Shutdown with RE

DE = 0V, (Figure 9)

l

40

ns

SWITCHING CHARACTERISTICS The

l

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VCC = 5V unless otherwise noted.

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

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: Not tested in production.

Note 4: The dependency on edge rate is tested indirectly.

Note 5: The LTC2879X is guaranteed over the full –55°C to 175°C

operating temperature range. High junction temperatures degrade

operating lifetimes. Operating lifetime is derated at junction temperatures

greater than 125°C. The LTC2879X has no thermal shutdown.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

ESD (Note 3)

ESD Protection Level of Interface Pins

(A, B)

Human Body Model to GND or VCC

Powered or Unpowered

±26

kV

Human Body Model to GND, Unpowered

±52

kV

ESD Protection Level of All Other Pins

(DE, DI, RE, VCC)

Human Body Model

±15

kV