4

Rev. 1.5

Si8660/61/62/63

1. Electrical Specifications

Table 1. Recommended Operating Conditions

Parameter

Symbol

Min

Typ

Max

Unit

Ambient Operating Temperature*

–40

25

125

°C

Supply Voltage

2.5

—

5.5

V

2.5

—

5.5

V

*Note: The maximum ambient temperature is dependent on data frequency, output loading, number of operating channels,

and supply voltage.

Table 2. Electrical Characteristics

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

VDD Undervoltage

Threshold

VDDUV+

1.95

2.24

2.375

V

VDD Undervoltage

Threshold

VDDUV–

1.88

2.16

2.325

V

VDD Undervoltage

Hysteresis

50

70

95

mV

Positive-Going Input

Threshold

VT+

All inputs rising

1.4

1.67

1.9

V

Negative-Going

Input Threshold

VT–

All inputs falling

1.0

1.23

1.4

V

Input Hysteresis

0.38

0.44

0.50

V

High Level Input Voltage

2.0

—

—

V

Low Level Input Voltage

——

0.8

V

High Level Output Volt-

age

loh = –4 mA

4.8

—

V

Low Level Output Volt-

age

lol = 4 mA

—

0.2

0.4

V

Input Leakage Current

——

±10

µA

Output Impedance1

—50

—



Notes:

1. The nominal output impedance of an isolator driver channel is approximately 50

, ±40%, which is a combination of

the value of the on-chip series termination resistor and channel resistance of the output driver FET. When driving loads

where transmission line effects will be a factor, output pins should be appropriately terminated with controlled

impedance PCB traces.

the same supply voltages, load, and ambient temperature.

3. Start-up time is the time period from the application of power to valid data at the output.