ADC/MCA is a fast pulse height analysis analog-to-digital converter (PHA ADC) with integrated Multichannel Analyzer. The ADC has a fixed conversion time of 390ns and incorporates a special differential non-linearity (DNL) improvement circuit. Automatic peak detection ensures stable operation at different shaping times. Integrated multichannel analyzer (MCA) is capable of capturing 1k, 2k, 4k and 8k spectra. It also has a MCS (Multi-Channel Scaler) alternate functionality. This functionality is software enabled/disabled and uses the same analog input for pulse counting.
Two main ADC/MCA modifications are available - stand alone device, powered by line adapter and OEM kit - ideal for integration into custom-made equipment. In addition to this, a number of standard connectivity choices exist - USB, Ethernet and RS232. This high-performance Multichannel Analyzer system is ideally suited for high count rate capable Silicon Drift Detectors.
In addition to high performance hardware, a simple to use MS Windows based Analysis Software is available.
Multichannel Analyzer - Analog Digital Converter - stand alone device.
Multichannel Analyzer - Analog Digital Converter - OEM version.
| Performance characteristics: | |
| Resolution | 8192 (4096 optional) data channels |
| ADC type | successive approximation, sliding scale linearization |
| ADC conversion time (fixed) | 390 ns |
| Integral non-linearity | < � 0.04 % |
| Differential non-linearity | < 0.5 % |
| Analog input specifications: | |
| Pulse form | gaussian |
| Signal shaping time | 0.15 �s to 20 �s |
| Dynamic input range | 0 to +5 V (optional 0 to +2.5 V) |
| Mechanical and environmental: | |
| Dimensions | 140 x 60 x 20 mm |
| Weight | 80 g |
| Operating temperature | 0 to +70� C |
| Power requirements: | |
| Supply voltage / current | +5 V / 450 mA from USB |
| Alternative supply | + 12 V / 180 mA |
| Gate input specifications: | |
| Pile-up rejector logic level | TTL (LVTTL) |
| Gated operation logic level | TTL (LVTTL) |
| Serial interface specifications: | |
| Memory size | 4k x 16 static RAM |
| USB transfer speed | 1.5 Mbaud |
| Electrical interface: | |
| Coaxial connectors | PHA input, Pile-up input |
| JST connector | +12v, GND |
| 10-pin feature connectors | +3.3v, GND, feature-specific signals |
| USB connector | B type |
| Remote controls: | |
| Lower level discriminator | 0 to max scale (4096 steps) |
| Upper level discriminator | 0 to max scale (4096 steps) |
| Dead-time detection level | 0 to max scale (4096 steps) |
| Optional controls: | |
| User-specific analog input | 0 V to +2.5 V |
| SPI control | LVTTL |
