Industrologic, Inc. reserves the right to change any product's features, specifications, documentation, warranties, fee schedules, and conditions at any time and without notice.

Industrologic products are provided as printed circuit board level assemblies. Some Industrologic products may include mechanical packaging accessories which are provide for the purchaser's convenience, and are not intended to be final assembly enclosures.

Industrologic products are provided with the understanding that the purchaser will determine fitness for any particular application as well as achieve compliance with any particular specifications or regulations as required or desired for that application.

Industrologic's obligation under this Warranty is limited to replacement with a new or repaired unit to the original purchaser. The unit must be returned, and replacements obtained from Industrologic, Inc. or the Distributor or OEM from whom it was purchased.

This warranty will not apply if, in the judgment of Industrologic, Inc., damage or failure of the product has resulted from accident, alteration, misuse, abuse, connection to or operation with incompatible signals or power sources, or improper installation.

Under no circumstances shall Industrologic, Inc. be liable to purchaser or any third party for any loss of profits or other direct or indirect costs, expenses, losses, or consequential damages arising out of or as a result of any defects in or failure of Industrologic products or any part or parts thereof.

THIS WARRANTY IS IN LIEU OF ANY OTHER WARRANTY, EITHER EXPRESSED OR IMPLIED, AS TO DESCRIPTION, QUALITY, MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE OR USE, OR ANY OTHER MATTER.

Products must be returned by original purchaser with a Return Materials Authorization (RMA) number issued by Industrologic, Inc. or the Distributor or OEM from whom it was purchased, authorizing its return. Current repair or replacement fees and procedures will be related during the issue of the RMA number.

Warranty or repair units must be returned with postage and insurance paid by purchaser. Industrologic, Inc. is not responsible for damages or loss during shipment.

• Based on the Texas Instruments TLC7226 chip with voltage output buffers
• Terminal block connections for convenient wiring to nearly any circuit
• Digital inputs compatible with most logic level outputs
• 8 bit parallel input plus address and enable inputs for 4 output channels
• On-board precision 5/10 volt reference
• External reference input capability
• Optional ABS plastic enclosure available

Refer to the drawing "Dimensions, Connections, and Jumpers" on a following page for printed circuit board layout and dimensions.

Power Supply Current:
30 mA plus current sourced by analog outputs

The UPDAC8 is based on the Texas Instruments TLC7226 chip with the addition of an on-board precision voltage reference and connection options that allow the chip to be used in a number of typical applications. Refer to the included TLC7226 data sheet for detailed information about the electrical characteristics of the chip, in particular, the "Recommended Operating Conditions". The following paragraphs will describe the connection options on the UPDAC8 and the voltage reference options.

Jumper plugs are available to conveniently connect the control signals to ground if they are not used. For example, if the UPDAC8 is used to provide only one analog output, the Write signal and the Address lines can be all grounded. In this configuration Channel 1 analog output number one will simply follow the parallel data on the 8 digital inputs. If multiple analog outputs are desired the Write signal and one or more of the Address lines can be enabled for connection at the screw terminals.

The +V supply is protected from voltages over 16 volts with a zener diode and series resistor circuit. Although this circuit will operate as a 16 volt power supply for unregulated voltages over 16 volts, it is not recommended due to excessive heat that will be generated by the resistor.

The TLC7226 requires a negative supply voltage only when it is used to provide both positive and negative output voltages at the analog outputs, and is connected to ground for positive output only. A jumper plug is provided to make the appropriate internal connections to either ground or to the -V screw terminal. Since the TLC7226 chip's analog ground and negative supply are both connected to the -V connection on the board, the -V connection is both the negative supply and negative reference voltage for the chip.

                        0 to +5       0 to +10         -5 to +5

+V                      +12           +14 to +16.5     +12
-V                      Grounded      Grounded         -5
Reference Select        Internal      Internal         Internal
Reference Voltage       5             10               5
Output Polarity         0 to +        0 to +           + and -