hcm series-大富豪官方网站

the hcm series provides a thermopile sensor chip and optical filter suited to the application plus an analog asic for signal conditioning inside a small smd package. the gain of the asic can be preset to either 2150 or 4300 by an internal pull-up resistor. with the integrated linear temperature reference changing ambient temperature can be compensated for. the sensor supply voltage can be chosen in the range between 2.7 v and 5 v.

small leadless smd package
integrated asic with analog output
integrated linear temperature reference
large number of optical filter options
large operating range -20°c to 120°c
ideal for gas concentration measurements

	hcm c12	hcm c2c2	hcm c22	hcm e222	unit
number of channels	1	1	1	2
sensor footprint	3.8x3.8	3.8x3.8	3.8x3.8	5x5	mm²
element size	0.61²	0.76²	1.2²	1.2²	mm²
voltage response	22	30	63	63	v mm² / w
sensitivity	58	52	44	44	v / w
resistance r_tp	86	75	84	84	kohm
tc of resistance r_tp	0.02	0.02	0.02	0.02	% / k
noise	38	35	37	37	nv / hz½
detectivity	0.9e8	1.1e8	1.4e8	1.4e8	cm hz½ / w
time constant	<5	10	10	10	ms
temperature reference voltage	1.4	1.4	1.4	1.4	v
sensitivity temp. ref.	16	16	16	16	mv/°c
zero input signal voltage	1.2	1.2	1.2	1.25	v
sensor gain	4300 or 2150	4300 or 2150	4300 or 2150	4300 or 2150	v / v
field of view	120	120	120	120	degree
operating temperature	-20 .. 120	-20 .. 120	-20 .. 120	-20 .. 120	°c
storage temperature	-40 .. 120	-40 .. 120	-40 .. 120	-40 .. 120	°c

gas concentration measurements

gas	cwl in nm	hpbw in nm	filter
ch₄	3300	160	f3.3/160
hc	3375	190	f3.375/190
co₂	4260	180	f4.26/180
co₂	4300	110	f4.3/110
co₂	4430	60	f4.43/60
co	4640	180	f4.64/180
co	4640	90	f4.64/90
n₂o	4530	85	f4.53/85
no	5300	180	f5.3/180
- (ref.)	3910	90	f3.91/90