DVK90129 Melexis Inc, DVK90129 Datasheet - Page 45

• Manufacturer Part Number: DVK90129
• Description: DEVELOPMENT KIT MLX90129
• Manufacturer: Melexis Inc
• Series: -r
• Type: Development kitr

Specifications of DVK90129

• Contents: Board, Proxima RF™ Desktop Reader
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: MLX90129

Signal Conditioner words (EEPROM & Register, addresses #18. EEPROM only #1E and #24)
The MLX90129 can handle 2 different external sensors and 1 internal sensor. Each of these sensor output
signals can be conditioned in a different way, using different values of gains and DC levels (offset). The
chopper option can be used to get rid of the internal offset of the programmable amplifiers. It is effective only
when the averaging option of ADC is used. The chopper enable makes the ADC conversion longer.
3901090129
Rev 007
#17 - Sensor 0 high threshold
15:0
#1C – Sensor 1 low threshold
15:0
#1D – Sensor 1 high threshold
15:0
#22 – Sensor 2 low threshold
15:0
#23 – Sensor 2 high threshold
15:0
Bits
#18 - Sensor 0: Signal Conditioner configuration word
7:0
11:8
14:12
15
#1E - Sensor 1: Signal Conditioner configuration word
15:0
#24 - Sensor 2: Signal Conditioner configuration word
15:0
Sensor0_ThresHigh
Sensor1_ThresLow
Sensor1_ThresHigh
Sensor2_ThresLow
Sensor2_ThresHigh
Name
Sensor0_DacCode
Sensor0_Pga1Gain
Sensor0_Pga2Gain
Sensor0_Chopper_En
Same as above
Same as above
Sensor 0 high threshold word
Sensor 1 low threshold word
Sensor 1 high threshold word
Sensor 2 low threshold word
Sensor 2 high threshold word
Content
DAC code, for Sensor0 (offset or level shifter):
Gain of PGA1: 0000: Gain=8
Gain of PGA2: 000: Gain=1
Chopper enable
Same as above
Same as above
00000000: 0
01111111: Vref/2
10000000: 0
11111111: -Vref/2
13.56MHZ SENSOR TAG / DATALOGGER IC
Page 45 of 56
0001: Gain=10
0010: Gain=12.6
0011: Gain=15.5
0100: Gain=19.6
0101: Gain=24.5
0110: Gain=30.8
0111: Gain=38.1
1000: Gain=47.6
1001: Gain=59.4
1010 to 1111: Gain=75
001: Gain=2
010: Gain=3
011: Gain=4
100: Gain=5
101: Gain=6
110: Gain=7
111: Gain=8
1: enabled
MLX90129
Data Sheet
March 2011