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AD7403BRIZ-RL7 Datasheet(PDF) 7 Page - Analog Devices

Part No. AD7403BRIZ-RL7
Description  16-Bit, Isolated Sigma-Delta Modulator
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD7403BRIZ-RL7 Datasheet(HTML) 7 Page - Analog Devices

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AD7403
Data Sheet
PACKAGE CHARACTERISTICS
Table 4.
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
Resistance (Input to Output)1
RI-O
1012
Capacitance (Input to Output)1
CI-O
2.2
pF
f = 1 MHz
IC Junction to Ambient Thermal Resistance
θJA
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
VISO
5000 min
V
1 minute duration
Minimum External Air Gap (Clearance)
AD7403
L(I01)
8.3 min1, 2
mm
Measured from input terminals to output
terminals, shortest distance through air
AD7403-8
L(I01)
8.1 min1, 2
mm
Measured from input terminals to output
terminals, shortest distance through air
Minimum External Tracking (Creepage)
AD7403
L(I02)
8.3 min1
mm
Measured from input terminals to output
terminals, shortest distance path along body
AD7403-8
L(I02)
8.1 min1
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
DIN IEC 112/VDE 0303 Part 13
Isolation Group
II
Material Group (DIN VDE 0110, 1/89, Table I)3
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.
UL1
CSA
VDE2
Recognized under 1577
Component Recognition
Program1
Approved under CSA Component Acceptance Notice 5A
Certified according to DIN V VDE V 0884-10
(VDE V 0884-10):2006-122
5000 V rms Isolation Voltage
Single Protection
Basic insulation per CSA 60950-1-07 and IEC 60950-1,
AD7403: 830 V rms (1173 VPEAK), AD7403-8: 810 Vrms
(1145 VPEAK) maximum working voltage3
Reinforced insulation per DIN V VDE V 0884-10
(VDE V 0884-10):2006-12, 1250 VPEAK
Reinforced insulation per CSA 60950-1-07 and
IEC 60950-1. AD7403: 415 V rms (586 VPEAK), AD7403-8:
405 V rms (583 VPEAK) maximum working voltage3
Reinforced insulation per IEC 60601-1, 250 V rms
(353 VPEAK) maximum working voltage
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
In accordance with DIN V VDE V 0884-10, each AD7403 is proof tested by applying an insulation test voltage ≥ 2344 VPEAK for 1 second (partial discharge detection limit = 5 pC).
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


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