AD2S44-TM18B Analog Devices Inc, AD2S44-TM18B Datasheet - Page 10

• Manufacturer Part Number: AD2S44-TM18B
• Description: IC CONV SYNC/R-D 14BIT 2CH 32DIP
• Manufacturer: Analog Devices Inc
• Type: R/D Converterr

Specifications of AD2S44-TM18B

• Resolution (bits): 14 b
• Data Interface: Parallel
• Voltage Supply Source: Dual ±
• Voltage - Supply: ±14.25 V ~ 15 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 32-CDIP (0.900", 22.86mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sampling Rate (per Second): -
• Other names: AD2S44TM18B; AD2S44TM18B

AD2S44
K
error due to acceleration. The maximum acceleration of which
the AD2S44 keeps track is approximate to 5 × K
or about 800 revolutions/sec
K
acceleration. For example, an acceleration of 50 revolutions/sec
with K
RELIABILITY
The reliability of these products is very high due to the extensive
use of custom chip circuits that decrease the active component
count. Calculations of the MTBF figure under various environ-
mental conditions are available upon request from Analog
Devices.
Figure 9 shows the MTBF in years vs. case temperature for
Naval Sheltered conditions calculated in accordance with the
Mil-Hdbk-217E.
a
a
can be used to predict the output position error due to input
does not define maximum acceleration; it defines only the
Errors
50
a
100
= 62,000 is calculated using the following equation:
⎡
⎢
⎣
10
sec
1
rev
62
25
,
2
in
000
⎤
⎥
⎦
LSBs
×
[
sec
2
14
Figure 9. MTBF vs. Temperature
45
⎡
⎢
⎣
−
=
2
LSB
rev
]
Input
⎤
⎥
⎦
TEMPERATURE (°C)
2
=
.
65
Accelerati
13
K
2 .
a
[
LSBs
sec
85
−2
on
]
⎡
⎢
⎣
sec
LSB
a
2
105
= 310,000°/sec
⎤
⎥
⎦
=
125
Rev. A | Page 10 of 12
2
2
PROCESSING FOR HIGH RELIABILITY (B SUFFIX)
As a part of the high reliability manufacturing procedure, all
converters receive the processing shown in Table 6.
Table 6.
Process
Precap Visual Inspection
Temperature Cycling
Constant Acceleration
Interim Electrical Tests
Operating Burn In
Seal Test, Fine and Gross
Final Electrical Test
External Visual Inspection
1
OTHER PRODUCTS
Analog Devices manufactures many other products concerned
with the conversion of synchro/resolver data, such as the
SDC/RDC1740 series and the AD2S80A series.
Hybrid
The SDC/RDC1740 is a hybrid synchro/resolver-to-digital
converter with internal isolating micro transformers.
Monolithic
The AD2S80A series are ICs performing resolver-to-digital
conversion with accuracies up to ±2 arc minutes and 16-bit
resolution.
Test and screening data supplied by request.
1
Conditions
MIL-STD-883, Method 2017
10 cycles, –65°C to +150°C
5000 Gs, Y1 plane
@ 25°C
160 hours @ 125°C
MIL-STD-883, Method 1014
Performed at T
MIL-STD-883, Method 2009
MIN
, T
AMB
, T
MAX