ADM488A/ADM489A

Data Sheet

TIMING SPECIFICATIONS

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

Table 2.

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

DRIVER

Propagation Delay Input to Output

tPLH, tPHL

250

2000

ns

RL differential = 54 Ω, CL1 = CL2 = 100 pF, see

Figure 15, Figure 16

Driver Output Skew

tSKEW

100

800

ns

RL differential = 54 Ω, CL1 = CL2 = 100 pF, see

Figure 15

Driver Rise/Fall Time

tDR, tDF

250

2000

ns

RL differential = 54 Ω, CL1 = CL2 = 100 pF, see

Figure 15, Figure 16

Driver Enable to Output Valid

tZL, tZH

250

2000

ns

RL = 500 Ω, CL = 100 pF, see Figure 12, Figure 18

Driver Disable Timing

tLZ, tHZ

300

3000

ns

RL = 500 Ω, CL = 15 pF, see Figure 12, Figure 18

Maximum Data Rate

250

kbps

RECEIVER

Propagation Delay Input to Output

tPLH, tPHL

250

2000

ns

CL = 15 pF, see Figure 15, Figure 17

Skew

|tPLH − tPHL|

100

ns

Receiver Enable

tEN1

10

50

ns

RL = 1 kΩ, CL = 15 pF, see Figure 14, Figure 19

Receiver Disable

tEN2

10

50

ns

RL = 1 kΩ, CL = 15 pF, see Figure 14, Figure 19

Maximum Data Rate

250

kbps

Rev. B | Page 4 of 16