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| MLX90288 Datasheet, PDF (5/19 Pages) Melexis Microelectronic Systems – SMD Programmable Linear Hall Sensor IC Featuring Analog Ratiometric Output | |||
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MLX90288
SMD Programmable Linear Hall Sensor IC
Featuring Analog Ratiometric Output
5.3 Timing Specification
Operating parameter valid for TA = â 40°C to + 150°C & VDD = + 4.5V to + 5.5V (unless specified otherwise).
Item
Power Supply Slew Rate
Startup time(1)
Main Oscillator Frequency
Conversion Rate
Programmable Filtering(2)
Output Amplifier Rise Time
(10%-90%)(3)
Output Amplifier Fall Time
(90%-10%)(3)
Calibration Time(4)
Symbol
VDDSR
tSTARTUP
FOSC
tCONV
fCONV
BW
tRISEPP
tFALLPP
tCALIB
Remark
External supply VDD
Tolerance ± 10%
Acquisition of Hall and
Temperature signals
(no digital filtering)
Tempsensor enabled
RL = 8 k⦠to Ground
CL = 330 nF to Ground
RL = 330 k⦠to Ground
CL = 330 nF to Ground
EE Full Erase + Write
EE Full Read
RAM Write
Min
5e-6
200
900
130
6.33
0.004
Typ
500
1000
144
7
300
200
180
Max
5
800
1100
158
7.7
1.114
6
3
Unit
V/µs
µs
kHz
µs
kHz
kHz
µs
µs
ms
ms
ms
Table 3: Timing Specification
(1) Startup time is defined as the time between crossing the POR level and having the first DAC output
update. It includes loading of the parameters from EEPROM, checking the CRC validity, initializations
and the signal latency between the first Hall plate acquisition and the DAC output update.
(2) Filtering is programmable with the FILTCODE parameter in EEPROM. The filter consists of an IIR
filter in the digital. For more details about the corresponding bandwidths, see Section 6.3.3.
(3) Rise and fall times are measured for worst case conditions, hence the difference in Rload for both
parameters. These specifications are only defined by the output amplifier and its load. The output
amplifier (Gain=2) is given a step response at the input from 5%VDD to 45%VDD and the rise/fall times
are measured as the time between reaching 10% and 90% of the step response DC output voltages
(10%VDD to 90%VDD).
(4) Calibration times measured at room temperature with PTC-04 and DB-HALL03 daughterboard,
FIR090288AAMLX firmware loaded onto the PTC-04 and on a MLX90288 in the recommended
application diagram from Section 10 at 10kbit/s.
5.4 Transfer Characteristic Specification
Operating parameter valid for TA = â 40°C to + 150°C & VDD = + 4.5V to + 5.5V (unless specified otherwise).
Item
Output Clamping Range
Output Quiescent (Offset)
Voltage Range
Sensitivity Range
Symbol
CLAMPLO
CLAMPHI
Remark
9 bits(1)
10 bits (1)
Min Typ
0
0
VOQ
14 bits (YA setting) (1) â 200
S
RG[2] = 1 (1)
For full-scale output(2)
±0.04
Table 4: Transfer Characteristic Specification
Max
50
100
200
±0.4
Unit
%VDD
%VDD
%VDD
%VDD/G
(1) Please refer to Section 6.2 for more detailed information.
(2) The full-scale output corresponds to 100%Vdd output range. This corresponds to 100% of the ADC
range when FINEGAIN is set to 1 (1024LSB) in a bipolar application.
3901090288
Rev 002
Page 5 of 19
May/12
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