- The SiTek SPC PSD is a PSD with a 400kHz attached signal processing circuit. The PSD currents are output as bipolar voltages representing the position and intensity of the centroid of a light spot on the PSD. The intensity signal can be used for external normalisation of the position (difference) signal in regard to light intensity dependence.
- Inputs are available for external adjustment of offset voltages.
- In order to obtain maximum precision, high reliability and small size the SPC electronics are built using thick film technology and laser trimmed resistors on a 20,5 x 20,5 mm2 ceramic substrate. The SPC PSD is delivered with surface mount or DIL Leads.
- 400 kHz Bandwidth
- Analogue outputs of all sum and differential signals
- Laser trimmed resistors
- Inputs for external adjustment of offset voltages
- Good thermal tracking
- Small size