SPH-20 Series: Discrete Pyroelectric Detectors.

Ultra-low NEP, Voltage Mode.

A family of devices that feature our LiTaO₃ detectors combined with an ultra low noise FET and Giga-ohm resistor for unparalleled performance at low to middle frequencies. Our unique SPH-21 mates a 25 µm thick, 1 mm diameter pyro element with this high performance voltage mode circuit yielding the lowest NEP in the industry ... 3.0 x 10^-10 W/(Hz)^1/2.

Available as a 1, 2, 3, 5 or 9 mm diameter detector packaged in either TO5 or TO8 enclosures. Power required, +9V to +15V. Pins 2 and 8 allow use of parallel resistors to tailor the voltage output and bandwidth characteristics of any of the SPH-20 series.

Options include the application of an Organic Black coating and choice of a variety of IR windows to shape their spectral response.

In addition we've designed an Evaluation Test Box, SPH-VM-TEST, to make it easy and convenient to power and evaluate our Voltage Mode devices.

Voltage responsivity to 900 V/W
NEP 3 x 10^-10 W/(Hz)^1/2
Frequency response 1Hz to 1KHz
1mm to 9mm diameter
Optional IR windows

Product Categories

Pyroelectric Detectors
Analog Radiometric Instruments
USB based, Digital Radiometric Instruments
Optical Trap Detectors
Detector Evaluation Test Box

Need more assistance? Ready to buy?

Please give us a call: (503) 697-1870
Or e-mail: info@spectrumdetector.com
Or fax us: (503) 697-0633

SPH-20 Series: Ultra-low NEP, Voltage Mode.

.	SPH-21			SPH-22			SPH-23			SPH-25			SPH-29			Units	Conditions
Specification (@25%C)	Min	Typ	Max	Min	Typ	Max	Min	Typ	Max	Min	Typ	Max	Min	Typ	Max	.	.
d, Diameter		1			2			3			5			9		mm
A, Area		0.78			3.14			7.07			19.63			63.62		mm²
C_d, Capacitance		15			22			60			90			280		pF	f=1kHz
R_i, Current Responsivity	0.7	1		0.3	0.5		0.3	0.5		0.15	0.25		0.15	0.25		µA/W	at 0.63 µm
f_t, Thermal 3db Frequency		3.5	6		1.6	3		0.8	2		0.5	1		0.25	.5	Hz
R_L, Load Resistor		300			300			100			100			100		Giga Ohms
R_V, Voltage Responsivity	400	900		100	200		45	90		15	25		5	15		V/W	0.63 µm; 5Hz
NEP, Noise Equivelant Power		0.3	0.7		0.6	1.8		1.0	2.5		2.0	4.5		5.0	12	x 10^-9 W/(Hz)^1/2	0.63 µm; 5Hz; 1Hz BW
D* Detectivity	1.3	2.9		1.0	3.0		1.1	2.7		1.0	2.2		0.7	1.6		x10⁸ cm(Hz)^1/2/W	0.63 µm; 5Hz; 1Hz BW
R₀, Output Resistance			5			5			5			5			5	KOhms
V_DD, Supply Voltage	9		15	9		15	9		15	9		15	9		15	Volts
Package			T05			T05			T05			T05			T08
Price in USD	CALL or e-mail			CALL or e-mail			CALL or e-mail			CALL or e-mail			CALL or e-mail			.	.