MicroMCA527 - GBS Elektronik GmbH

MicroMCA527
Ultra miniature Multi Channel Analyzer Module
The MicroMCA527 is an OEM MCA designed for minimum size, minimum power
requirements and to be integrated within any spectroscopical gamma detector. Software and
firmware are mostly compatible to MCA527, MCA527L and MCA527 OEM. Power supply
supply and communication is by a MicroUSB connector. The ADC inputs are directly
connected to the input pins, where a custom preamplifier as driver is expected.
µMCA527from top side and back side, on the right the micro USB connector
Different interface (I²C and RS232) and power supply lines (1.5V (ADC ref.), 1.8V, 3.3V, 5V
(from USB)) makes it possible to develop additional functions, like GPS receivers, sensors or
microcontrollers, around the module. Please contact us if you need support or a firmware
extension. Already available add-ons are PMT-compatible preamplifier, HV up to +/-1000V
and a PMT (14 pin) socket with all this included.
Technical Data
Amplifier
Differential input directly to ADC with common
mode at 1.5V and a range of +/-1V. May also
be used single ended with the negative input
fixed at 1.5V. Will accept positive as well as
negative signals. Low pass filtering of the input
signal with around 3 MHz bandwidth is
recommended.
Linearity better than 0.1%.
ADC
14bit, 10 MSps
Integral Nonlinearity

power supply:
USB, 4.5 V ... 5.25 V, 50mA in idle mode,
80mA max at full operation. With external
consumers connected, supply current may
increase up to 500mA.
Computer Interface
USB. Other possibilities see variants.
Firmware, Software
All firmware commands analog to MCA166 and
MCA527 with some extensions. Will operate
with some MCA166/MCA527 software.
Documentation will include description of all
firmware commands and a small programming
guide with examples.
Mechanical
Circuit board 50 mm x 20 mm*5mm.
Weight: 5g.
Connectors:
• Micro USB connector for communication
and supply.
• A 7-pin and 15-pin head with 1.27mm pitch
for analog input, supply voltages output and
communication ports.
For details of connection check the complete
documentation of the µMCA527.
Variants and derivates
µMCA527 with preamplifier and HV
suitable for integration within scintillation detectors
with photomultiplier.
GBS Elektronik GmbH
Bautzner Landstraße 22
01454 Großerkmannsdorf
Germany
Tel.: 0049 (0)351 21 70 07 - 0
Fax.: 0049 (0)351 21 70 07 - 21
E-Mail: kontakt@gbs-elektronik.de
Website: www.gbs-elektronik.de
Mechanical dimensions: 21*35*50mm (height * with *
length)
HV up to +/-1000V, 0.5mA max., programmable (select
polarity with ordering).
For positive voltage PMT, AC coupled output, an
external HV proof coupling capacitor of around 2-4nF is
necessary.
Charge measurement up to 160 pC / 800 pC in two
settable ranges.
Depending on HV setting and loading, the current
consumption may increase up to 260mA at 5V.
µMCA527 base
Includes µMCA527 with preamplifier, HV and voltage
divider.
Maximum diameter 65mm, at the end 59mm, overall
length 111mm.
suitable for PMT type R6231(-100), R6233 or similar. On
request available also with pinning compatible to R1306,
R1307.
maximum diameter of PMT at socket allowed: 59mm.
µMCA Ethernet/RS232
External communication by Ethernet (powered by Power
over Ethernet, PoE; or communication by RS232
(external power supply required) instead of USB.
-Under preparation- please request.
20.11.12 Dr. Jörg Brutscher