ADM2482E datasheet(4/20 Pages) AD

部件名	ADM2482E

功能描述	2.5 kV Isolated RS-485 Transceivers with Integrated Transformer Driver

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制造商	AD [Analog Devices]

网页	http://www.analog.com

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ADM2482E/ADM2487E

Rev. 0 | Page 4 of 20

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions

TRANSFORMER DRIVER

Oscillator Frequency

fOSC

400

500

600

kHz

VDD1 = 5.0 V

230

330

430

kHz

VDD1 = 3.3 V

Switch-On Resistance

RON

0.5

1.5

Ω

Start-Up Voltage

VSTART

2.2

2.5

V

COMMON-MODE TRANSIENT IMMUNITY1

25

kV/μs

VCM = 1 kV, transient

magnitude = 800 V

1 CM is the maximum common-mode voltage slew rate that can be sustained while maintaining specification-compliant operation. VCM is the common-mode potential

difference between the logic and bus sides. The transient magnitude is the range over which the common-mode is slewed. The common-mode voltage slew rates

apply to both rising and falling common-mode voltage edges.

TIMING SPECIFICATIONS

TA = −40°C to +85°C

Table 2. ADM2482E

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions

DRIVER

Propagation Delay

tDPLH, tDPHL

100

ns

RDIFF = 54 Ω, CL = 100 pF, see Figure 4 and Figure 9

Output Skew

tDSKEW

8

ns

RDIFF = 54 Ω, CL = 100 pF, see Figure 4 and Figure 9

Rise Time/Fall Time

tDR, tDF

15

ns

RDIFF = 54 Ω, CL = 100 pF, see Figure 4 and Figure 9

Enable Time

tZL, tZH

120

ns

RL = 110 Ω, CL = 50 pF, see Figure 5 and Figure 11

Disable Time

tLZ, tHZ

150

ns

RL = 110 Ω, CL = 50 pF, see Figure 5 and Figure 11

RECEIVER

Propagation Delay

tPLH, tPHL

110

ns

CL = 15 pF, see Figure 6 and Figure 10

Output Skew

tSKEW

8

ns

CL = 15 pF, see Figure 6 and Figure 10

Enable Time

tZL, tZH

13

ns

RL = 1 kΩ, CL = 15 pF, see Figure 7 and Figure 12

Disable Time

tLZ, tHZ

13

ns

RL = 1 kΩ, CL = 15 pF, see Figure 7 and Figure 12

Table 3. ADM2487E

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions

DRIVER

Propagation Delay

tDPLH, tDPHL

250

700

ns

RDIFF = 54 Ω, CL = 100 pF, see Figure 4 and Figure 9

Output Skew

tDSKEW

100

ns

RDIFF = 54 Ω, CL = 100 pF, see Figure 4 and Figure 9

Rise Time/Fall Time

tDR, tDF

200

1100

ns

RDIFF = 54 Ω, CL = 100 pF, see Figure 4 and Figure 9

Enable Time

tZL, tZH

2.5

μs

RL = 110 Ω, CL = 50 pF, see Figure 5 and Figure 11

Disable Time

tLZ, tHZ

200

ns

RL = 110 Ω, CL = 50 pF, see Figure 5 and Figure 11

RECEIVER

Propagation Delay

tPLH, tPHL

200

ns

CL = 15 pF, see Figure 6 and Figure 10

Output Skew

tSKEW

30

ns

CL = 15 pF, see Figure 6 and Figure 10

Enable Time

tZL, tZH

13

ns

RL = 1 kΩ, CL = 15 pF, see Figure 7 and Figure 12

Disable Time

tLZ, tHZ

13

ns

RL = 1 kΩ, CL = 15 pF, see Figure 7 and Figure 12

类似零件编号 - ADM2482E

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类似说明 - ADM2482E

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