MLX90255BA Datasheet, PDF (3/10 Pages) List of Unclassifed Manufacturers – Linear Optical Array

Datasheet MLX90255BA
Linear Optical Array
MLX90255BA Electrical specifications
All tests are made with 0.7ms integration time, at 10mW/cm² light = 100% at 25°C at 880nm and with a
clock speed of 500kHz in, 250kHz out, and 500kHz, unless otherwise specified in the Test Conditions.
100 % light under Test Conditions means that the light is set in such a way that there is 2.4V at the output
of the chip.
Parameter
Symbol Test Conditions
Min Typ Max Units
Illumination
Illum100 At 25°C, 2.4V at output
11.4 14
16 µW/cm²
Average analog output (1)
VaoLight At 25°C, 100% light
1.5 1.7 2.1
V
Average analog output
Initial offset At 25°C, 0% light
0 0.15 0.3
V
Average analog output
VaoDark At 125°C, 0% light
0
0.40 1.4
V
Highest Dark Pixel
Vaodarkmax At 125°C, 0.25ms integration time
0.8
V
Non Linearity
Nlao1 All Temp
±0.5% ±1.2%
FS
Pixel Response Non Uniformity (2) PRNU All Temp, 100% light
±4.0% ±8.5%
FS
Pixel Interaction Test (3)
PIT AT 25°C
5%
FS
Noise Level (4)
Vn All Temp
3
6 mV (RMS)
Hold spec, same as PRNU
PRNUH All Temp, 100% light, 62.5kHz
±4.0% ±8.5%
FS
Output Settling Time
Ts All Temp
450 750
ns
Array Lag (5)
Alag At 25°C
0.5%
FS
Dark Signal Non Uniformity (6)
Analog Output Saturation
DSNU
At 25°C
At 125°C
All Temp
80 120
mV
140 440
mV
3.0
V
Change in sensitivity with
Temperature at 880nm (7)
Operating Free Temp
0
0.3 0.8
%/°C
-40
125
°C
Supply Current (8)
Idd
2
5
8
mA
(0) After power on, the first integration scan is not guaranteed correct. This scan is needed for initializing digital levels on chip. After a SI and 133 proper
CLK signals, the system is fully initialized and all further scans are valid. The next SI will provide a valid scan.
(1) Absolute Light measurements are very test-setup dependent and should be regarded with caution. Relative measurements are possible with ±1%
accuracy.
(2) PRNU is defined as the worst case deviation of any PixelValue (pixel 3 till 130) to the average light value. PixelValue = (Vout of a pixel at 100% light
– Vout of same pixel at 0% light) The 90255BA has a cosign shaped gain: external pixels have 15% more gain than middle pixels.
(3) PIT = (Vout of pixel 132 @ 10µW – Vout of pixel 132 @0µW) / (Vaverage @10µW – Vaverage @10µW)
(4) Noise: We compare 5 different measurements, normalize them and then take the RMS value.
(5) Array Lag is defined as: (Vaverage 0µW¹ Vaverage 0µW²) / ((Vaverage 10µW Vaverage 0µW²). Where 0µW¹ is a 0% light level, 1ms after a 100%
light level. (there can still be some light effects). 0µW² is a 0% light level, 10ms after a 100% light level, which should be a true dark reference.
(6) DSNU is defined as: (max Vout of pixel I @ 0% light) - (min Vout of pixel j @ 0% light) for pixels 3 thru 130
(7) Sensitivity always increases with rising temperature.
(8) Idd is measured with Rload disconnected from the output pin.
MLX90255BA Linear Optical Array
3901090255
Page 3
Rev 1.2 08-Aug-01