Universal Transconductance Amplifier

(UTA)

Supply Voltage: 5 to 24 VDC, single supply, at least 1 volt higher than full scale output voltage.
Supply Current: less than 1mA; Supply Voltage variation effect: less than 0.01% per volt.
Operating Temperature: -30°C to +70°C
Tempco: less than 0.01% per °C
Gain accuracy: ±1% FSO all ranges ±0.2% on factory preset range.
Voltage output in darkness:<0.2% FSO
Output impedance: 1000Ω ± 1%
NEMA 4 gasketed white polycarbonate enclosure: 1.37" x 1.96" x 2.55" (4.15" with gland nuts). Please see photo and mounting template diagram. Weight, 4 oz.
Gland nut at output, gland nut or BNC at input.
Phoenix® beryllium/copper i/o terminals. See diagram.
Input connector: two terminals for LI-COR for shield and center conductor, or BNC connector.
Output connector: three terminals, for + power, signal, and common.
Complete instructions are included with the UTA order; also available in PDF form from link on this webpage.

List of available gain factors, /gain=xxx. The higher gains are useful for the low light levels that come up in photometry or for underwater quantum sensors at depth.

Available Gain Factors

0.004	0.036	0.084	0.160	0.280	0.540	0.900	1.280	2.400	4.000	6.400
0.008	0.040	0.096	0.168	0.300	0.560	0.960	1.400	2.500	4.200	7.200
0.012	0.048	0.106	0.180	0.320	0.600	0.980	1.440	2.700	4.500	8.100
0.016	0.056	0.112	0.192	0.360	0.640	1.000	1.500	2.800	4.800
0.020	0.060	0.120	0.196	0.400	0.700	1.080	1.600	3.000	4.900
0.024	0.064	0.128	0.200	0.420	0.720	1.120	1.800	3.200	5.400
0.028	0.072	0.140	0.224	0.480	0.800	1.200	2.000	3.500	5.600
0.032	0.080	0.144	0.240	0.500	0.840	1.260	2.100	3.600	6.300