Data Sheet

ICM-20948
Document Number: DS-000189 Page 11 of 89
Revision: 1.3
3 ELECTRICAL CHARACTERISTICS
3.1 GYROSCOPE SPECIFICATIONS
Typical Operating Circuit of section 4.2, VDD = 1.8V, VDDIO = 1.8V, T
A
=25°C, unless otherwise noted.
NOTE: All specifications apply to Low-Power Mode and Low-Noise Mode, unless noted otherwise
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
NOTES
GYROSCOPE SENSITIVITY
Full-Scale Range
GYRO_FS_SEL=0
±250
dps
1
GYRO_FS_SEL=1
±500
dps
1
GYRO_FS_SEL=2
±1000
dps
1
GYRO_FS_SEL=3
±2000
dps
1
Gyroscope ADC Word Length
16
bits
1
Sensitivity Scale Factor
GYRO_FS_SEL=0
131
LSB/(dps)
1
GYRO_FS_SEL=1
65.5
LSB/(dps)
1
GYRO_FS_SEL=2
32.8
LSB/(dps)
1
GYRO_FS_SEL=3
16.4
LSB/(dps)
1
Sensitivity Scale Factor Tolerance
25°C
±1.5
%
2
Sensitivity Scale Factor Variation Over
Temperature
-40°C to +85°C
±3
%
2
Nonlinearity
Best fit straight line; 25°C
±0.1
%
2, 3
Cross-Axis Sensitivity
±2
%
2, 3
ZERO-RATE OUTPUT (ZRO)
Initial ZRO Tolerance
25°C (Component-level)
±5
dps
2
ZRO Variation Over Temperature
-40°C to +85°C
±0.05
dps/°C
2
GYROSCOPE NOISE PERFORMANCE (GYRO_FS_SEL=0)
Noise Spectral Density
Based on Noise Bandwidth =
10 Hz
0.015
dps/√Hz
2
GYROSCOPE MECHANICAL FREQUENCIES
25
27
29
kHz
2
LOW PASS FILTER RESPONSE
Programmable Range
5.7
197
Hz
1, 3
GYROSCOPE START-UP TIME
From Full-Chip Sleep mode
35
ms
2, 3
OUTPUT DATA RATE
Low-Power Mode
4.4
562.5
Hz
1
Low-Noise Mode
GYRO_FCHOICE=1;
GYRO_DLPFCFG=x
4.4 1.125k Hz
Low-Noise Mode
GYRO_FCHOICE=0;
GYRO_DLPFCFG=x
9k Hz
Table 1. Gyroscope Specifications
NOTES:
1. Guaranteed by design.
2. Derived from validation or characterization of parts, not guaranteed in production.
3. Low-noise mode specification.