ADBMS2950BCCSZ datasheet(11/97 Pages) AD

11 / 97 page

Data Sheet

ADBMS2950B

Rev. 0 | Page 11 of 97

ISOSPI SPECIFICATIONS

Operating junction temperature (TJ) = −40°C to +125°C, VDD = 12V, VREG = 5.0V.

Table 15. isoSPI DC Specifications

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

Common-Mode Voltage (VCM)

3.2

TA = 25°C, IP/IM not driving

PIN RESISTANCE (RIN)

IPA, IMA

kΩ

ISOMD = 1, READY state

IPB, IMB

100

kΩ

READY state

Transmitter Pulse Amplitude (VA)

1.25

1.6

VA = |VIP − VIM|, termination resistance = 50 Ω

Transmitter Drive Current

VCM set by the driver

Receiver Threshold Setting

240

300

360

Table 16. isoSPI Pulse Timing Specifications

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

CHIP SELECT

Half-Pulse Width (t½PW(CS))

120

150

180

Transmitter

Signal Filter (tFILT(CS))

110

Receiver

Pulse Inversion Delay (tINV(CS))

120

155

190

Transmitter

Valid Pulse Window (tWNDW(CS))

220

270

330

Receiver

DATA

Half-Pulse Width (t½PW(D))

Transmitter

Signal Filter (tFILT(D))

Receiver

Pulse Inversion Delay (tINV(D))

Transmitter

Valid Pulse Window (tWNDW(D))

110

Receiver

Figure 3. isoSPI Pulse Timings

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