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參數(shù)資料
| 型號： | ADW71205WSTZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 14/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RDC 12BIT W/REF OSC 44LQFP |
| 標準包裝： | 1,500 |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | 串行，并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 3 |
| 功率耗散（最大）： | 50mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-LQFP |
| 供應商設備封裝： | 44-LQFP（10x10） |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 1 個差分，單極 |
AD2S1205
Rev. A | Page 3 of 20
SPECIFICATIONS
AVDD = DVDD = 5.0 V ± 5% at 40°C to +125°C, CLKIN = 8.192 MHz ± 25%, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Conditions/Comments
Sin, Cos INPUTS1
Voltage
2.3
3.15
4.0
V p-p
Sinusoidal waveforms, Sin SinLO and Cos CosLO,
differential inputs
Input Bias Current
12
μA
VIN = 4.5 VDC, CLKIN = 10.24 MHz
Input Impedance
0.35
MΩ
VIN = 4.5 VDC
Common-Mode Voltage
100
mV peak
CMV with respect to REFOUT/2 at 10 kHz
Phase-Lock Range
44
+44
Degrees
Sin/Cos vs. EXC output
ANGULAR ACCURACY
Angular Accuracy
±11
Arc minutes
Zero acceleration, Y grade
±22
Arc minutes
Zero acceleration, W grade
Resolution
12
Bits
Guaranteed no missing codes
Linearity INL
2
LSB
Zero acceleration, 0 rps to 1250 rps, CLKIN = 10.24 MHz
Linearity DNL
0.3
LSB
Guaranteed monotonic
Repeatability
1
LSB
Hysteresis
1
LSB
VELOCITY OUTPUT
Velocity Accuracy
2
LSB
Zero acceleration
Resolution
11
Bits
Linearity
1
LSB
Guaranteed by design, 2 LSB maximum
Offset
0
1
LSB
Zero acceleration
Dynamic Ripple
1
LSB
Zero acceleration
DYNAMIC PERFORMANCE
Bandwidth
1000
2400
Hz
Tracking Rate
750
rps
CLKIN = 6.144 MHz , guaranteed by design
1000
rps
CLKIN = 8.192 MHz , guaranteed by design
1250
rps
CLKIN = 10.24 MHz , guaranteed by design
Acceleration Error
30
Arc minutes
At 10,000 rps, CLKIN = 8.192 MHz
Settling Time 179° Step Input
5.2
ms
To within ±11 arc minutes, Y grade, CLKIN = 10.24 MHz
4.0
ms
To within 1 degree, Y grade, CLKIN = 10.24 MHz
EXC, EXC OUTPUTS
Voltage
3.34
3.6
3.83
V p-p
Load ±100 μA
Center Voltage
2.39
2.47
2.52
V
Frequency
10
kHz
FS1 = high, FS2 = high, CLKIN = 8.192 MHz
12
kHz
FS1 = high, FS2 = low, CLKIN = 8.192 MHz
15
kHz
FS1 = low, FS2 = high, CLKIN = 8.192 MHz
20
kHz
FS1 = low, FS2 = low, CLKIN = 8.192 MHz
EXC/EXC DC Mismatch
35
mV
THD
58
dB
First five harmonics
FAULT DETECTION BLOCK
Loss of Signal (LOS)
Sin/Cos Threshold
2.18
2.24
2.3
V p-p
DOS and LOT go low when Sin or Cos fall below threshold
Angular Accuracy (Worst Case)
57
Degrees
LOS indicated before angular output error exceeds limit
(4.0 V p-p input signal and 2.18 V LOS threshold)
Angular Latency (Worst Case)
114
Degrees
Maximum electrical rotation before LOS is indicated
(4.0 V p-p input signal and 2.18 V LOS threshold)
Time Latency
125
μs
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