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AD7400BRW Datasheet(PDF) 6 Page - Analog Devices

Part # AD7400BRW
Description  Isolated Sigma-Delta Modulator
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7400BRW Datasheet(HTML) 6 Page - Analog Devices

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AD7400/AD7401
Preliminary Technical Data
ABSOLUTE MAXIMUM RATINGS1,3
Table 4. AD7400/AD7401 Absolute Maximum Ratings (TA = +25°C unless otherwise noted)
VDD1 to GND1
-0.3 V to +6.5V
VDD2 to GND2
-0.3 V to +6.5 V
Analog Input Voltage to GND1
-0.3 V to VDD1 +0.3V
Digital Input Voltage to GND2
-0.3 V to VDD2 +0.5 V
Output Voltage to GND2
-0.3 V to VDD2 +0.3V
Input Current to Any Pin Except Supplies2
±10mA
Operating Temperature Range
-40°C to +105°C
Storage Temperature Range
-65°C to +150°C
Junction Temperature
+150°C
SOIC Package
θJA Thermal Impedance
89.2 °C/W
θJC Thermal Impedance
55.6 °C/W
Resistance (Input-Output), RI-O
1012
Capacitance (Input-Output), CI-O
1pF
Lead Temperature, Soldering
Vapor Phase (60 sec)
+215°C
Infared (15 sec)
+220°C
ESD
TBD
NOTES
1Stresses above those listed under Absolute Maximum Ratings may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those
indicated in the operational section of this specification is not implied.
Exposure to absolute maximum rating conditions for extended periods may
affect device reliability.
2Transient currents of up to 100mA will not cause SCR latch up.
3 All voltages are relative to their respective ground.
REGULATORY INFORMATION
(PENDING)
Table 5. Insulation and Safety Related Specifications
Parameter
Symbol
Value
Units
Conditions
Input-Output Withstand Momentary
Withstand Voltage1
VISO
3750 min.
V
Note 1
Minimum External Air Gap
(Clearance)
L(I01)
8.4 min
mm
Measured from input terminals to output terminals, shortest
distance through air.
Minimum External Tracking
(Creepage)
L(I02)
8.1 min
mm
Measured from input terminals to output terminals, shortest
distance path along body.
Minimum Internal Gap (Internal
Clearance)
0.025 min
mm
Insulation distance through insulation.
Tracking Resistance (Comparative
Tracking Index)
CTI
>175
V
DIN IEC 112/VDE 0303 Part 1
Isolation Group
IIIa
Material Group (DIN VDE 0110,1/89,Table 1)
UL1
CSA
VDE2
Recognized under 1577
component recognition program1
Double insulation, 3750 V rms
isolation voltage
Approved under CSA Component
Acceptance Notice #5A
Reinforced insulation per
CSA 60950-1-03 and IEC 60950-1,
630 V rms maximum working voltage
Certified according to DIN EN 60747-5-2
(VDE 0884 Part 2):2003-012
Basic insulation, 891 V peak
Complies with DIN EN 60747-5-2 (VDE 0884 Part 2):2003-01,
DIN EN 60950 (VDE 0805):2001-12; EN 60950:2000
Reinforced insulation, 891 V peak
NOTES
1
In accordance with UL1577, each AD7400/AD7401 is proof tested by applying an insulation test voltage ≥ 4500 V rms for 1 second (current leakage detection limit =
5 µA).
2
In accordance with DIN EN 60747-5-2, each AD7400/AD7401 is proof tested by applying an insulation test voltage ≥ 1670 V peak for 1 second (partial discharge
detection limit = 5 pC).
Rev. PrH | Page 6 of 10


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