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ADXRS645 Datasheet(Arkusz danych) 3 Page - Analog Devices

Numer części ADXRS645
Szczegółowy opis  High Temperature, Vibration Rejecting plus,minus2000temperature/sec Gyroscope
Pobierz  10 Pages
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
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Data Sheet
ADXRS645
SPECIFICATIONS
All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed. TA = 25°C, VS = AVCC = VDD = 5 V,
VRATIO = AVCC, angular rate = 0°/sec, bandwidth = 80 Hz (COUT = 0.01 µF), and IOUT = 100 µA, unless otherwise noted.
Table 1.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
SENSITIVITY1
Clockwise rotation is positive output
Measurement Range2, 3
±2000
°/sec
Initial
TA = 25°C
1
mV/°/sec
Temperature Drift
Uncompensated, −40°C to +150°C4
±5
%
Uncompensated, 150°C to 175°C
−35
%
Nonlinearity
Best fit straight line
0.1
% of FS
NULL1
Initial
TA = 25°C
2.4
2.5
2.6
V
Temperature Drift
Uncompensated, −40°C to +150°C4
±50
°/sec
Uncompensated, 150°C to 175°C
±150
°/sec
Linear Acceleration Effect
Any axis
0.1
°/sec/g
Vibration Rectification
25 g rms, 50 Hz to 5 kHz
0.0006
°/sec/g2
NOISE PERFORMANCE
Rate Noise Density
TA ≤ 25°C
0.25
°/sec/√Hz
Resolution Floor
TA = 25°C, 1 minute to 1 hour in-run
100
°/hr
TA = 150°C, 1 minute to 1 hour in-run
150
°/hr
FREQUENCY RESPONSE
Bandwidth (±3 dB)5
No external filter
2000
Hz
Sensor Resonant Frequency
15.5
17.5
20
kHz
SELF-TEST1
ST1 RATEOUT Response
ST1 pin from Logic 0 to Logic 1
−1300
°/sec
ST2 RATEOUT Response
ST2 pin from Logic 0 to Logic 1
1300
°/sec
ST1 to ST2 Mismatch6
±2
%
Logic 1 Input Voltage
3.3
V
Logic 0 Input Voltage
1.7
V
Input Impedance
To common
40
50
100
TEMPERATURE SENSOR1
VTEMP at 25°C
Load = 10 MΩ
2.3
2.4
2.5
V
Scale Factor7
25°C, VRATIO = 5 V
9
mV/°C
TURN-ON TIME8
Power on to ±2°/sec of final with CP5 = 100 nF
50
ms
OUTPUT DRIVE CAPABILITY
Current Drive
For rated specifications
200
µA
Capacitive Load Drive
1000
pF
POWER SUPPLY
Operating Voltage (VS)
4.75
5.00
5.25
V
Quiescent Supply Current
3.5
mA
TEMPERATURE RANGE
Specified Performance
−40
+175
°C
LIFESPAN
Usable Life Expectancy
TA = 175°C
1000
Hours
1
Parameter is linearly ratiometric with VRATIO.
2
Measurement range is the maximum range possible, including output swing range, initial offset, sensitivity, offset drift, and sensitivity drift at 5 V supplies.
3
Measurement range can be extended to as much as ±5000°/s by adding a single 120 kΩ resistor between the RATEOUT and SUMJ pins.
4
Maximum deviation from +25°C to −40°C or +25°C to +150°C, see the Typical Performance Characteristics section for typical behavior over temperature.
5
Adjusted by the external capacitor, COUT. Reducing bandwidth below 0.01 Hz does not result in further noise improvement.
6
Self-test mismatch is described as (ST2 + ST1)/((ST2 − ST1)/2).
7
Scale factor for a change in temperature from 25°C to 26°C. VTEMP is ratiometric to VRATIO.
8
Based on characterization.
Rev. A | Page 3 of 10




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