參數(shù)資料
型號: AD2S1205
廠商: Analog Devices, Inc.
英文描述: 12-Bit R/D Converter with Reference Oscillator
中文描述: 12位的R / D轉(zhuǎn)換器與參考振蕩器
文件頁數(shù): 4/25頁
文件大?。?/td> 367K
代理商: AD2S1205
AD2S1205
Preliminary Technical Data
AD2S1205–SPECIFICATIONS
Table 1. (AV
DD
= DV
DD
= 5.0 V ± 5% @ 40°C to +125°C CLKIN 6.144MHz to 10.24MHz, unless otherwise noted.)
Parameter
Min
Typ
Sin, Cos INPUTS
1
Voltage
2.3
3.15
Rev.PrB | Page 4 of 25
Max
4.0
Unit
V p-p
Conditions/Comments
Sinusoidal waveforms, Sin-SinLO, Cos-CosLO,
differential inputs
V
IN
= 3.96 V p-p
V
IN
= 3.96 V p-p
CMV with respect to REFOUT/2 @ 10 kHz
Sin/Cos vs. EXC output
Zero acceleration Y Grade
Zero acceleration W Grade
Guaranteed no missing codes
Zero acceleration, 0 to 1,000 rps
Guaranteed monotonic
Zero acceleration
Guaranteed by design 2 LSB max
Zero acceleration
Zero acceleration
Fixed
CLKIN 10.24MHz. Guaranteed by design. Tested to 800
rps.
At 10,000 rps
2
To within stated accuracy
To within one degree
Load ±100 μA
FS1 = high, FS2 = high
FS1 = high, FS2 = low
FS1 = low, FS2 = high
FS1 = low, FS2 = low
First five harmonics
DOS and LOT go low when Sin or Cos fall below
threshold.
LOS indicated before angular output error exceeds limit
(4.0 V p-p input signal and 2.2 V LOS threshold).
Maximum electrical rotation before LOS is indicated (4.0
V p-p input signal and 2.2 V LOS threshold).
Input Bias Current
Input Impedance
Common Mode Volts
Phase Lock Range
ANGULAR ACCURACY
Angular Accuracy
Resolution
Linearity INL
Linearity DNL
Repeatability
Hysteresis
VELOCITY OUTPUT
Velocity Accuracy
Resolution
Linearity
Offset
Dynamic Ripple
DYNAMIC PERFORMANCE
Bandwidth
Tracking Rate
1.0
45
1,160
12
1
11
1
0
1
1,600
2
100
+45
±11
±22
2
0.3
1
2
1
2,000
1,250
μA
mV Peak
Degrees
arc min
arc min
Bits
LSB
LSB
LSB
LSB
LSB
Bits
LSB
LSB
LSB
Hz
rps
Acceleration Error
Settling Time 179° Step Input
Settling Time 179° Step Input
EXC, EXC OUTPUTS
Voltage
Center Voltage
Frequency
EXC/EXC DC Mismatch
THD
FAULT DETECTION BLOCK
LOS
Sin/Cos Threshold
3.34
2.39
2.18
30
3.6
2.47
10
12
15
20
60
2.24
5.2
4.0
3.83
2.52
35
55
2.3
arc min
ms
ms
V p-p
V
kHz
kHz
kHz
kHz
mV
dB
V p-p
Angular Accuracy (Worst Case)
57
Degrees
Angular Latency (Worst Case)
114
Degrees
Time Latency
125
μs
1
The voltages Sin, SinLO, Cos, and CosLO relative to AGND must always be between 0.2 V and AV
DD
.
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