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ADM3483E

3.3 V, ±15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers

Analog Devices 

ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E

DRIVER TIMING SPECIFICATIONS

VCC = 3.3 V, TA = 25°C.

Table 3. ADM3483E/ADM3488E

Parameter

MAXIMUM DATA RATE

DIFFERENTIAL OUTPUT DELAY

DIFFERENTIAL OUTPUT TRANSITION TIME

PROPAGATION DELAY

From Low to High Level

From High to Low Level

|tPLH − tPHL| PROPAGATION DELAY SKEW1

ENABLE/DISABLE TIMING (ADM3483E ONLY)

Enable Time to Low Level

Enable Time to High Level

Disable Time from Low Level

Disable Time from High Level

Enable Time from Shutdown to Low Level

Enable Time from Shutdown to High Level

1 Measured on |tPLH (Y) − tPHL (Y)| and |tPLH (Z) − tPHL (Z)|.

VCC = 3.3 V, TA = 25°C.

Table 4. ADM3486E

Parameter

MAXIMUM DATA RATE

DIFFERENTIAL OUTPUT DELAY

DIFFERENTIAL OUTPUT TRANSITION TIME

PROPAGATION DELAY

From Low to High Level

From High to Low Level

|tPLH − tPHL| PROPAGATION DELAY SKEW1

ENABLE/DISABLE TIMING

Enable Time to Low Level

Enable Time to High Level

Disable Time from Low Level

Disable Time from High Level

Enable Time from Shutdown to Low Level

Enable Time from Shutdown to High Level

1 Measured on |tPLH (Y) − tPHL (Y)| and |tPLH (Z) − tPHL (Z)|.

Symbol

tDD

tTD

tPLH

tPHL

tPDS

tPZL

tPZH

tPLZ

tPHZ

tPSL

tPSH

Min Typ

250

600 900

400 740

Max

1400

1200

Unit

kbps

ns

ns

700 930 1500 ns

700 930 1500 ns

±50

ns

900 1300 ns

600 800 ns

50

80

ns

50

80

ns

1.9 2.7 μs

2.2 3.0 μs

Test Conditions/Comments

RL = 60 Ω (see Figure 10)

RL = 60 Ω (see Figure 10)

RL = 27 Ω (see Figure 11)

RL = 27 Ω (see Figure 11)

RL = 27 Ω (see Figure 11)

RL = 110 Ω (see Figure 13)

RL = 110 Ω (see Figure 12)

RL = 110 Ω (see Figure 13)

RL = 110 Ω (see Figure 12)

RL = 110 Ω (see Figure 13)

RL = 110 Ω (see Figure 12)

Symbol

tDD

tTD

Min Typ Max

2.5

20 42 70

15 28 60

Unit

Mbps

ns

ns

Test Conditions/Comments

RL = 60 Ω (see Figure 10)

RL = 60 Ω (see Figure 10)

tPLH

20 42 75

ns

RL = 27 Ω (see Figure 11)

tPHL

20 42 75

ns

RL = 27 Ω (see Figure 11)

tPDS

−6 ±12 ns

RL = 27 Ω (see Figure 11)

tPZL

52 100 ns

RL = 110 Ω (see Figure 13)

tPZH

52 100 ns

RL = 110 Ω (see Figure 12)

tPLZ

40 80

ns

RL = 110 Ω (see Figure 13)

tPHZ

40 80

ns

RL = 110 Ω (see Figure 12)

tPSL

700 1000 ns

RL = 110 Ω (see Figure 13)

tPSH

700 1000 ns

RL = 110 Ω (see Figure 12)

Rev. A | Page 5 of 20

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