Datasheet ADXRS646 (Analog Devices) - 4

Data Sheet ADXRS646 SPECIFICATIONS
Al minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed. TA = 25°C, VS = AVCC = VDD = 6 V, VRATIO = AVCC, angular rate = 0°/sec, bandwidth = 80 Hz (COUT = 0.01 µF), IOUT = 100 µA, ±1 g, unless otherwise noted.
Table 1. Parameter Test Conditions/Comments Min Typ Max Unit
SENSITIVITY1 Clockwise rotation is positive output Measurement Range2 Full-scale range over specifications range ±250 ±300 °/sec Initial 7.5 9 10.5 mV/°/sec Temperature Drift3 ±6.5 % Nonlinearity Best fit straight line 0.01 % of FS NULL1 Null −40°C to +105°C 2.7 3.0 3.3 V Temperature Drift3 ±3 °/sec Linear Acceleration Effect Any axis 0.015 °/sec/g Vibration Rectification 25 g rms, 50 Hz to 5 kHz 0.0001 °/sec/g2 NOISE PERFORMANCE Rate Noise Density TA ≤ 25°C 0.01 °/sec/√Hz Rate Noise Density TA ≤ 105°C 0.015 °/sec/√Hz Resolution Floor TA = 25°C, 1 minute to 1 hour in-run 12 °/hr FREQUENCY RESPONSE Bandwidth4 ±3 dB user adjustable up to specification 1000 Hz Sensor Resonant Frequency 15.5 17.5 20 kHz SELF-TEST1 ST1 RATEOUT Response ST1 pin from Logic 0 to Logic 1 −50 °/sec ST2 RATEOUT Response ST2 pin from Logic 0 to Logic 1 50 °/sec ST1 to ST2 Mismatch5 −5 ±0.5 +5 % Logic 1 Input Voltage ST1 pin or ST2 pin 4 V Logic 0 Input Voltage 2 V Input Impedance ST1 pin or ST2 pin to common 40 50 100 kΩ TEMPERATURE SENSOR1 VOUT at 25°C Load = 10 MΩ 2.8 2.9 3.0 V Scale Factor6 25°C, VRATIO = 6 V 10 mV/°C Load to VS 25 kΩ Load to Common 25 kΩ TURN-ON TIME6 Power on to ±0.5°/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) 5.75 6.00 6.25 V Quiescent Supply Current 4 mA TEMPERATURE RANGE Specified Performance −40 +105 °C 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 From +25°C to −40°C or +25°C to +105°C. 4 Adjusted by external capacitor, COUT. Reducing bandwidth below 0.01 Hz does not result in further noise improvement. 5 Self-test mismatch is described as (ST2 + ST1)/((ST2 − ST1)/2). 6 Based on characterization. Rev. C | Page 3 of 12 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS RATE SENSITIVE AXIS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION SETTING BANDWIDTH TEMPERATURE OUTPUT AND CALIBRATION SUPPLY RATIOMETRICITY NULL ADJUSTMENT SELF-TEST FUNCTION CONTINUOUS SELF-TEST MODIFYING THE MEASUREMENT RANGE IMMUNITY TO VIBRATION OUTLINE DIMENSIONS ORDERING GUIDE