ADM488ABRZ Просмотр технического описания (PDF) - Analog Devices

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ADM488ABRZ

Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers

Analog Devices 

ADM488A/ADM489A

TIMING SPECIFICATIONS

VCC = 5 V ± 10%. All specifications TMIN to TMAX, unless otherwise noted.

Table 2.

Parameter

DRIVER

Propagation Delay Input to Output

Driver Output Skew

Driver Rise/Fall Time

Driver Enable to Output Valid

Driver Disable Timing

Maximum Data Rate

RECEIVER

Propagation Delay Input to Output

Skew

Receiver Enable

Receiver Disable

Maximum Data Rate

Symbol Min Typ Max Unit Test Conditions/Comments

tPLH, tPHL

tSKEW

tDR, tDF

tZL, tZH

tLZ, tHZ

250

2000 ns RL differential = 54 Ω, CL1 = CL2 =

100 pF, see Figure 15

100 800 ns

RL differential = 54 Ω, CL1 = CL2 =

100 pF, see Figure 15

250

2000 ns RL differential = 54 Ω, CL1 = CL2 =

100 pF, see Figure 15

250

2000 ns RL = 500 Ω, CL = 100 pF, see Figure 12

300

3000 ns RL = 500 Ω, CL = 15 pF, see Figure 12

250

kbps

tPLH, tPHL

250

2000 ns CL = 15 pF, see Figure 15

|tPLH − tPHL|

100

ns

tEN1

10 50 ns RL = 1 kΩ, CL = 15 pF, see Figure 14

tEN2

10 50 ns RL = 1 kΩ, CL = 15 pF, see Figure 14

250

kbps

Rev. 0 | Page 4 of 16

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