AD7400 Analog Devices, AD7400 Datasheet - Page 6

• Manufacturer Part Number: AD7400
• Description: Isolated Sigma-Delta Modulator
• Manufacturer: Analog Devices

Specifications of AD7400

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 10MSPS
• Interface: Ser
• Analog Input Type: Diff-Uni
• Ain Range: ± 0.2 V Diff,0.4 V p-p
• Adc Architecture: Sigma-Delta Modulator
• Pkg Type: SOIC

AD7400
DIN V VDE V 0884-10 (VDE V 0884-10) INSULATION CHARACTERISTICS
This isolator is suitable for reinforced electrical isolation only within the safety limit data. Maintenance of the safety data is ensured by
means of protective circuits.
Table 5.
Description
INSTALLATION CLASSIFICATION PER DIN VDE 0110
CLIMATIC CLASSIFICATION
POLLUTION DEGREE (DIN VDE 0110, Table 1)
MAXIMUM WORKING INSULATION VOLTAGE
INPUT-TO-OUTPUT TEST VOLTAGE, METHOD B1
INPUT-TO-OUTPUT TEST VOLTAGE, METHOD A
HIGHEST ALLOWABLE OVERVOLTAGE (TRANSIENT OVERVOLTAGE, t
SAFETY-LIMITING VALUES (MAXIMUM VALUE ALLOWED IN THE EVENT OF A FAILURE, ALSO SEE Figure 4)
INSULATION RESISTANCE AT T
For Rated Mains Voltage ≤ 300 V rms
For Rated Mains Voltage ≤ 450 V rms
For Rated Mains Voltage ≤ 600 V rms
V
After Environmental Test Subgroup 1
After Input and/or Safety Test Subgroup 2/3
Case Temperature
Side 1 Current
Side 2 Current
IORM
V
V
IORM
IORM
× 1.875 = V
× 1.6 = V
× 1.2 = V
PR
PR
PR
, 100% Production Test, t
, t
, t
m
m
= 60 sec, Partial Discharge < 5 pC
= 60 sec, Partial Discharge < 5 pC
S
, V
IO
= 500 V
Figure 4. Thermal Derating Curve, Dependence of Safety-Limiting Values
350
300
250
200
150
100
m
50
0
= 1 sec, Partial Discharge < 5 pC
0
with Case Temperature per DIN V VDE V 0884-10
50
CASE TEMPERATURE (°C)
SIDE #1
Rev. E | Page 6 of 20
SIDE #2
TR
= 10 sec)
100
150
200
Symbol
V
V
V
V
T
I
I
R
S1
S2
S
IORM
PR
PR
TR
S
Characteristic
I–IV
I–II
I–II
40/105/21
2
891
1671
1426
1069
6000
150
265
335
>10
9
Unit
V peak
V peak
V peak
V peak
V peak
°C
mA
mA
Ω