AD2S83(1998) View Datasheet(PDF) - Analog Devices
Part Name
Description
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AD2S83 Datasheet PDF : 19 Pages
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Parameter
COMPLEMENT
DATA LOAD
Sense
Conditions
Internally Pulled High via 100 kΩ
to +VS. Logic LO to Activate;
No Connect for Normal Operation
Internally Pulled High via 100 kΩ
to +VS. Logic LO Allows
Data to be Loaded into the
Counters from the Data Lines
AD2S83
Min
Typ
Max
150
300
BUSY6, 7
Sense
Width
Load
Logic HI When Position O/P Changing
150
350
Use Additional Pull-Up (See Figure 2)
1
DIRECTION6
Sense
Logic HI Counting Up
Logic LO Counting Down
Max Load
3
RIPPLE CLOCK6
Sense
Width
Reset
Load
Logic HI
All 1s to All 0s
All 0s to All 1s
Dependent on Input Velocity
300
Before Next Busy
3
DIGITAL INPUTS
Input High Voltage, VIH
INHIBIT, ENABLE
2.0
DB1–DB16, Byte Select
± VS = ± 11.4 V, VL = 5.0 V
Input Low Voltage, VIL
INHIBIT, ENABLE
0.8
DB1–DB16, Byte Select
± VS = ± 12.6 V, VL = 5.0 V
DIGITAL INPUTS
Input High Current, IIH
Input Low Current, IIL
INHIBIT, ENABLE
DB1–DB16
± VS = ± 12.6 V, VL = 5.5 V
INHIBIT, ENABLE
DB1–DB16, Byte Select
± VS = ± 12.6 V, VL = 5.5 V
؎100
؎100
DIGITAL INPUTS
Low Voltage, VIL
ENABLE = HI
1.0
SC1, SC2, DATA LOAD
± VS = ± 12.0 V, VL = 5.0 V
Low Current, IIL
ENABLE = HI
–400
SC1, SC2, DATA LOAD
± VS = ± 12.0 V, VL = 5.0 V
DIGITAL OUTPUTS
High Voltage, VOH
Low Voltage, VOL
DB1–DB16
2.4
RIPPLE CLK, DIR
± VS = ± 12.0 V, VL = 4.5 V
IOH = 100 µA
DB1–DB16
0.4
RIPPLE CLK, DIR
± VS = ± 12.0 V, VL = 5.5 V
IOL = 1.2 mA
NOTES
1Angular accuracy is not guaranteed <50 Hz reference frequency.
2Linearity derates from 500 kHz–1000 kHz @ 0.0017%/kHz.
3Refer to Definition of Linearity, “The AD2S83 as a Silicon Tachogenerator.”
4Worst case reversion error at temperature extremes.
5Velocity output offset dependent on value for R6.
6Refer to timing diagram.
7Busy pulse guaranteed up to a VCO rate of 900 kHz.
All min and max specifications are guaranteed. Specifications in boldface are tested on all production units at final electrical test.
Specifications subject to change without notice.
REV. D
–3–
AD2S83
Units
ns
ns
LSTTL
LSTTL
ns
LSTTL
V
V
µA
µA
V
µA
V
V
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