over operating free-air temperature range (unless otherwise noted)
PARAMETER |
TEST CONDITIONS |
MIN |
TYP |
MAX |
UNIT |
tstart_power_up |
Time to go to standby mode after VCC supply voltage crossing VCC_MIN |
|
|
270 |
|
µs |
tstart_sleep |
Time to go from sleep mode to standby mode(1) |
|
|
50 |
|
µs |
tstart_measure |
Time to go from standby mode to continuous measure mode |
|
|
70 |
|
µs |
tmeasure |
Conversion time Only one channel enabled OPERATING_MODE = 10b |
CONV_AVG = 000b(2) |
|
50 |
|
µs |
CONV_AVG = 101b(3) |
|
825 |
|
µs |
tgo_sleep |
Time to go into sleep mode after SCL goes high |
|
|
20 |
|
µs |
(1) The device only recognizes the I2C communication from a primary during standby or continuous measure modes. While the device is in sleep mode, a valid secondary address wakes up the device but no acknowledge is sent to the primary. Consider the start-up time before addressing the device after wake up.
(2) Add 25µs for each additional magnetic channel enabled for conversion with CONV_AVG = 000b. When CONV_AVG = 000b, the conversion time doesn't change with the T_CH_EN bit setting.
(3)
For conversion with CONV_AVG =101b, each channel data is collected 32 times. If an additional channel is enabled with CONV_AVG =101b, add 32×25µs = 800µs to the tmeasure to calculate the conversion time for two channels.