Data Sheet AD2S44
Rev. B | Page 3 of 12
SPECIFICATIONS
V
S
= ±15 V at T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter Min Typ Max Unit Test Conditions/Comments
PERFORMANCE
Accuracy
1
AD2S44-UMB
2
−4.0 +4.0 Arc minutes 55°C to +125°C
−2.6 +2.6 Arc minutes 25°C to +85°C
AD2S44-TMB
2
−4.0 +4.0 Arc minutes 55°C to +125°C
Tracking Rate 20 Rev/sec
Resolution (1 LSB = 1.3 Arc Minutes) 14 Bits Output coding parallel natural binary
Repeatability 1 LSB
Signal/Reference Frequency 400 2600 Hz
Bandwidth 100 Hz
SIGNAL INPUTS
Signal Voltage 11.8 or 90 V rms See the Ordering Information section
Input Impedance
90 V Signal 200 kΩ Resistive tolerance ±2%
11.8 V Signal 26 kΩ
Common-Mode Rejection 74 dB
Common-Mode Range
90 V Signal ±250 V dc
11.8 V Signal ±60 V dc
REFERENCE INPUTS
Reference Voltage 26 or 115 V rms See the Ordering Information section
Input Impedance
115 V 270 kΩ Resistive tolerance ±5%
26 V
270
kΩ
Common-Mode Range
115 V ±210 V dc
26 V ±210 V dc
ACCELERATION CONSTANT 62,000 sec
–2
STEP RESPONSE
Large Step
1, 2
63
75
ms
179° to 1 LSB of error
Small Step
1, 2
25 30 ms 2° to 1 LSB of error
POWER LINES
+V
S
= +15 V
1, 2
75 80 mA Quiescent condition
–V
S
= 15 V
1, 2
40 45 mA Quiescent condition
Power Dissipation 1.7 1.9 W Quiescent condition
DIGITAL INPUTS
OE
V
IL
0.7 V dc I
IL
= 5 µA
V
IH
2.0 V dc I
IH
= 5 µA
A/B
V
IL
0.7
V dc
I
IL
= 1.2 mA
V
IH
2.0 V dc I
IH
= 60 µA
DIGITAL OUTPUTS (DB1 to DB14)
V
OL
1, 2
0.4
V dc
I
IL
= 1.2 mA
V
OH
1, 2
2.4 V dc I
OH
= 60 µA
Three-State Leakage Current ±40 µA
Drive Capability 3 LSTTL loads
AD2S44 Data Sheet
Rev. B | Page 4 of 12
Parameter Min Typ Max Unit Test Conditions/Comments
DATA TRANSFER See Figure 6
Time to Data Stable (After Negative Edge of OE
or Change of Level of A/B)
640 ns t
S
Time to Data in High Impedance State
(After Positive Edge of
OE)
200 ns t
R
Time for Repetitive Strobing of Selected Channel 200 ns t
P
BUILT-IN TEST OUTPUT (BIT)
Sense
Active low
Low = error condition
V
OL
0.4 V dc I
OL
= 3.2 mA
V
OH
2.4 V dc I
OH
= 160 µA
Drive Capability 8 LSTTL loads
Error Condition Set 55 LSB
Error Condition Cleared 45 LSB
1
Specified overtemperature range, 55°C to +125°C, and for: (a) ±10% signal and reference amplitude variation; (b) ±10% signal and reference harmonic distortion; (c)
±5% power supply variation; and (d) ±10% variation in reference frequency.
2
These parameters are 100% tested at nominal values of power supplies, input signal voltages, and operating frequency. All other parameters are guaranteed by
design, not tested.
Data Sheet AD2S44
Rev. B | Page 5 of 12
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Rating
+V
S
to GND +17.25 V dc
–V
S
to GND 17.25 V dc
Any Logic Input to GND +6.0 V dc (maximum)
Any Logic Input to GND 0.4 V dc (minimum)
Maximum Junction Temperature 150°C
S1, S2, S3, S4 Pins (Line-to-Line)
1
90 V Option ±600 V dc
11.8 V Option
±80 V dc
S1, S2, S3, S4 Pins to GND
90 V Option ±600 V dc
11.8 V Option ±80 V dc
R
HI
Pins to R
LO
Pins
26 V, 115 V Options ±600 V dc
R
HI
Pins to R
LO
Pins to GND
26 V, 115 V Options ±600 V dc
Storage Temperature Range 65°C to +150°C
Operating Temperature Range 55°C to +125°C
1
On synchro input options, line-to-line voltage refers to the differential voltages
of S2 (A)/S2 (B) to S1 (A)/S1 (B), S1 (A)/S1 (B) to S3 (A)/S3 (B), and S3 (A)/S3 (B)
to S2 (A)/S2 (B). On resolver input options, line-to-line levels refer to the S1 (A)/
S1 (B) to S3 (A)/S3 (B) and S2 (A)/S2 (B) to S4 (A)/S4 (B) voltages.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; 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.
ESD CAUTION

AD2S44-TM12B

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Data Acquisition ADCs/DACs - Specialized IC Synchro/R/D Converter
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet