MLX90129 데이터 시트보기 (PDF) - Melexis Microelectronic Systems
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MLX90129 Datasheet PDF : 60 Pages
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MLX90129
13.56MHZ SENSOR TAG / DATALOGGER IC
6.7. Sensor Signal Conditioner: electrical specifications
-40°C < Temp < 105°C, unless otherwise specified. The sensor is supplied by a regulated voltage called Vref.
Parameter
Symbol
Conditions / Comment
Min
Typ
Max Units
GENERAL CHARACTERISTICS
Battery voltage
Vbat
Low-volt option deactivated
3.8
Low-volt option activated
2.7
5.5
V
5.5
V
SENSOR ADJUSTMENT CAPABILITY
Sensor Reference voltage SENSSUP1
Vref (2)
SENSSUP2
Full Span
(3)
Sens_FS
Zero offset
(1)(3) Sens_Off
Common-mode voltage
SENSSUP1 output
impedance
SENSSUP2 output
impedance
Sens_CM
Sens1_Z
Sens2_Z
Low-volt option = 0
3.0
3.1
3.2
V
Low-volt option = 1
2.0
2.1
2.2
Full scale of the sensor
output voltage (Sens_CM
Vref /1200
-
Vref /16
V
is at the specified value)
Maximum sensor offset that - Vref/32
-
+Vref/32
V
can be compensated
1/3*Vref ½* Vref 2/3*Vref
V
7
15
Notes:
(1): The capability of adjustment of the input offset depends on the selected
gain of the first Programmable Gain Amplifier (PGA1) and on the sensor output
span.
(2): The reference voltages of the ADC, of the DAC and the supply voltage of the
sensors are ratio-metric.
(3): Full span is defined as the maximal sensor differential output voltage:
V(sensor output)max , i.e the maximum voltage range allowed on the
MLX90129 sensor interface inputs SENS1, SENS2, SENS3 and SENS4.
Vbat = Battery
Vref = SENSSUP 1&2 output
¾*Vref
½*Vref
¼*Vref
Vss
REVISION 011 - JUNE 13, 2017
3901090129
Page 9 of 60
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