MLX90129 데이터 시트보기 (PDF) - Melexis Microelectronic Systems

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MLX90129

13.56MHZ SENSOR TAG / DATALOGGER IC

Melexis Microelectronic Systems  

MLX90129

13.56MHZ SENSOR TAG / DATALOGGER IC

Parameter

Conditions / Comment

PROGRAMMABLE-GAIN AMPLIFIER PGA1

Gain accuracy

Code PGA1gain[3:0] =

0000 (gain=8) -> 1010 (gain=75)

PROGRAMMABLE-GAIN AMPLIFIER PGA2

Gain accuracy

Code PGA2gain[2:0] =

000 (gain=1) -> 111 (gain=8)

PGA1 + PGA2 + DAC

Gain range

Sensor offset trimming

range

Sensor offset trimming step

Differential input range

ADC differential input range

(= offset max of the sensor)

8-bits DAC (7 bits + sign)

Ratio-metric, to cancel the offset of the

sensor

Gain (PGA) = 8

(if higher, PGA_Dir should be Vref/2 divided

by the gain)

DAC (differential outputs)

Resolution

INL

DNL

7 bits + 1 bit sign

Min

Typ

95

100

95

100

8

-Vref /32

Vref /128

Vref /16

½.Vref

8

0

0

Max Units

105 %typ

105 %typ

600 V/V

+Vref

V

/32

V

V

V

bit

0.5

lsb

0.5

lsb

Parameter

Conditions / Comment

Min Typ

Max Units

BRIDGE SUPPLIES & REFERENCES

Reference serial resistance 6 bits-programmable:

(Rv1, Rv2)

Min

Max

Serial resistance accuracy

Serial resistance step

Matching between Rv1 and

Rv2

Above code 0b000111 (7.5 k)

Above code 0b000111 (7.5 k)

0.5

k

63.5

80 100

1

120

%typ

k

1

%

INTERNAL TEMPERATURE SENSOR

Full scale

-40

+105

°C

Output range

Temp = 145°C,

-

155

-

mV

Offset

Vout at T = 25°C

45

mV

Sensitivity

Vout / Temp

-

1.06

-

mV/°C

Non-linearity (*)

Temp = 145°C

-

±2.65

-

mV

(*) The internal temperature sensor requires a calibration. On the full range the calibration allows an accuracy of ±2.5°C. This can

be improved within a reduced temperature range (e.g. ±1°C within -30 and 30°C), or by using a remote (external) temperature

probe (+/-0.5° over the full range)

REVISION 011 - JUNE 13, 2017

3901090129

Page 10 of 60

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