ADC 812

Analog to Digital Converter

8 channels, 12 Bit, multi range

ADC 812 English Tech. Manual PDF format.

Ver.5.00 - Rel.. 18 June 2002.

The ADC 812 is a powerfull peripheral, high speed, low price, analog to digital converter card, included in Abaco® Industrial Family.

It is composed by a 12 bits A/D Converter section, based on the multi range MAX197 DAS (Data Acquisition System) and it provides 8 indipendent analog inputs.

The electric connection of the card is performed through three confortable connectors: one for the control cards with Abaco® I/O BUS, and the other two for the input analog signals; the mechanical mounting is simplified by a proper optional plastic support for DIN 46277-1 and DIN 46277-3 Omega rails.

The ADC 812 card is the right component for all the applications where it is required a low price, an high number of signals to be acquired and an high conversion speed.

If the number of required analog input channels is higher than those available on the board, it is moresuitable an europe card size with Abaco® BUS.

A very important feature of ADC 812 are the multi range analog inputs, in fact with a simple software setting, many different input signals can be converted; furthermore, there are two handy sockets 8 way each, where you can mount up to 8 precision resistors to quickly specialize, each one of the eight voltage inputs, into current inputs in the range 0÷20mA or 4÷20mA.

A wide range of demo programs and examples allow an immediate use of the same. These programs are available for the whole CPUs of Abaco® family.

They are duly documented and supplied under source form for many different languages in which Abaco® control cards can be programmed.

• - Interface for Abaco® I/O BUS on 26 pins standard low profile connector.
• - Dimension: 100x50x30 mm, (110x60x65 mm with container) in 4 Type format.
• - Optional plastic support for DIN 46277-1 and DIN 46277-3 rails.
• - One A/D Converter section, 8 channels,12 bits, based on DAS MAX197.
• - 11µs conversion time, for each channel.
• - 5Mhz Bandwidth Track Hold, 100Ksps Sampling-Rate.
• - Software controlled indication of polarity.
• - Input range and input channel selectable by software.
• - Available input ranges: ±10V, ±5V, +10V, +5V or 0÷20mA, 4÷20mA with optional conversion module: Option.8420.
• - Fault protected input multiplexer (±16,5V)
• - Two 8 pins quick release screw terminal connectors, for all analog inputs.
• - Interrupt request joined to end of conversion.
• - Interrupt connection to /INT or /NMI, selectable by hardware.
• - Only 2 consecutives Bytes used for card I/O addressing.
• - Card I/O allocation address defined through proper dip switch.
• - Single power supply voltage: +5 Vdc; 80 mA.

Data Sheet ADC 812, Rel. 01.11

GRIFO®
Via dell'Artigiano, 8/6
40016 San Giorgio di Piano
Bologna ITALY

Tel: +39 051 892.052 (4 lines)
FAX: +39 051 893.661

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