AD7403

Data Sheet

PACKAGE CHARACTERISTICS

Table 4.

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

Ω

2.2

pF

f = 1 MHz

IC Junction to Ambient Thermal Resistance

45

°C/W

Thermocouple located at center of package underside,

test conducted on 4-layer board with thin traces

1

The device is considered a 2-terminal device. For AD7403, Pin 1 to Pin 8 are shorted together and Pin 9 to Pin 16 are shorted together. For AD7403-8, Pin 1 to Pin 4 are

shorted together, Pin 5 to Pin 8 are shorted together.

INSULATION AND SAFETY RELATED SPECIFICATIONS

Table 5.

Parameter

Symbol

Value

Unit

Test Conditions/Comments

Input to Output Momentary Withstand Voltage

5000 min

V

1 minute duration

Minimum External Air Gap (Clearance)

AD7403

L(I01)

mm

Measured from input terminals to output

terminals, shortest distance through air

AD7403-8

L(I01)

mm

Measured from input terminals to output

terminals, shortest distance through air

Minimum External Tracking (Creepage)

AD7403

L(I02)

mm

Measured from input terminals to output

terminals, shortest distance path along body

AD7403-8

L(I02)

mm

Measured from input terminals to output

terminals, shortest distance path along body

Minimum Internal Gap (Internal Clearance)

0.034 min

mm

Distance through insulation

Tracking Resistance (Comparative Tracking Index)

CTI

>400

V

Isolation Group

II

1

In accordance with IEC 60950-1 guidelines for the measurement of creepage and clearance distances for a pollution degree of 2 and altitudes ≤2000 m.

2

Consideration must be given to pad layout to ensure the minimum required distance for clearance is maintained.

3

CSA CTI rating for the AD7403 is >600 V and a Material Group I isolation group. AD7403-8 is >400 and a Material Group II isolation group.

REGULATORY INFORMATION

Table 6.

CSA

Recognized under 1577

Component Recognition

Approved under CSA Component Acceptance Notice 5A

Certified according to DIN V VDE V 0884-10

5000 V rms Isolation Voltage

Single Protection

Basic insulation per CSA 60950-1-07 and IEC 60950-1,

Reinforced insulation per DIN V VDE V 0884-10

Reinforced insulation per CSA 60950-1-07 and

Reinforced insulation per IEC 60601-1, 250 V rms

File E214100

File 205078

File 2471900-4880-0001

1

In accordance with UL 1577, each AD7403 is proof tested by applying an insulation test voltage ≥ 6000 V rms for 1 second (current leakage detection limit = 15 µA).

2

3

Rating is calculated for a pollution degree of 2 and a Material Group III. The AD7403 RI-16-2 package material is rated by CSA to a CTI of >600 V and therefore

Material Group I. The AD7403-8 RI-8-1 package material is rated by CSA to a CTI of >400 V and therefore Material Group II.

Rev. B | Page 6 of 24