Data sheet FEE-HS0 pages

Front End Electronics
for NMOS Spectral Sensors and PDAs
FEE-HS
Product-ID: 06101.23
Document: ds_fee-hs_122e.doc

In der Au 27
61440 Oberursel / Germany
Phone: +49 (0) 6171 / 9758 – 0
Fax: +49 (0) 6171 / 9758 – 50
E-Mail: sales@tec5.com
Internet: www.tec5.com

Sensors and Electronic Multiplexers
The following sensor modules are currently available:
• MMS - Spectral Sensors (not MMS NIR)
• MCS - Spectral Sensors (equipped with Preamplifier
Electronics type DZA-S3901-4)
• Preamplifier Electronics DZA-S3901-4 for Hamamatsu photodiode arrays types S3901 to S3904 or
compatible
The module is prepared for direct connection to tec5’s
Electronic Spectral Sensor Multiplexers (up to 8 channels). The multiplexers are plugged on top of the HSFront End Electronics. Currently available are the multiplexers type MUX-4P and MUX-8A.

Features / Specifications
Short Description
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High speed readout control logic with ADC for
digitization of the sensors’s analog video signal
For NMOS photodiode arrays (PDAs)
Readout rate: 187.5 kpixel per second
(1.4 ms readout time for 256 pixels)
Resolution: 15 bits A/D conversion
Dynamic range: approx. 1:23.000 with MMS
Spectral Sensor, gain 1
Input from device:
preamplifier with PDA or Spectral Sensor
Output to device:
Ethernet-, USB- or PCI bus Interface Electronics
PCB dimensions 87 mm x 67 mm (FEE standard)

General
The FEE-HS functions as a kind of adapter between the
sensor module and the Interface Electronics. It generates the controlling signals for the photodiode array of
the sensor module, preprocesses the analog video
signal and performs analog / digital conversion. The
digitized intensity values are provided as byte sequential data stream for the Interface Electronics.
The circuit board is connected either to the PCI bus
Interface Electronics via a shielded 2 or 5m long multipin cable (PD-PCI01V1 version ‘Standard’, interface
standard ‚Interface_40’) or directly plugged on top of the
Ethernet- or USB Interface Electronics (PD-ETH01V1 or
PD-USB01V2, version ‚Embedded’, Interface standard
‘Interface_2*18’).
The sensor interface corresponds to specification ‚Sensor_1A‘. The sensor module is connected to the FEE by
a miniaturized coax line and a 10 pin flat ribbon cable.

Functional Properties
• Provision of all supply voltages for the PDA
• Autonomous single scan control:
- generation of all control signals for the PDA
- analog video signal preprocessing
- 15 bit A/D conversion of the intensity values
- provision of the digital intensity values for
acquisition by the Interface Electronics
• Prepared for controlling tec5’s Electronic Spectral
Sensor Multiplexer units
• Local non-volatile memory, 256 Bytes capacity
(e.g. for identification data of the sensor(s), calibration coefficients or customer specific information)
Specifications
• ADC:
16 bits, type AD976A
• Resolution:
15 bits
• Conversion rate:
approx. 187.5 kSps,
crystal clock controlled
• Readout time:
1.4 ms for 256 pixels
• Spectra rate:
approx. 700 spectra/s
• Input sensitivity:
approx. 23.000 counts/V
• Offset adj. range:
approx. ± 900 counts
• Standard deviation: typically 1.4 counts
with MMS sensor, gain = 1
(20 dark spectra at 10 ms)
15
• Dynamic range:
approx. 1 : 23.000 (2 / 1.4)
• Non-linearity:
typ. ±2 counts, max. ±4 counts
• Temperature drift: < ±1,5 counts / °C
Interfaces
• Interface type ‚Sensor_1A’ to sensor unit
• Interface type ‚Interface_40‘ or ‘Interface_2*18’
to Interface Electronics
• Connector for Spectral Sensor Multiplexer