Analog I/O Board

The Analog I/O Board is an accessory board that allows the implementation of an analog interface to the Tempero I/O 24 Range consists of Ether I/O 24 R, Ether I/O 24 DIP R, USB I/O 24 R and the USB I/O 24 DIP R.

The board consists of an eight-channel 10 bit Analog to Digital Converter (MCP3008) and a 12 bit Digital to Analog Converter with two buffered outputs (MCP4922). Communication to the A/D and D/A Converters is via the SPI interface of the I/O 24 module, which is implemented in the firmware.

The  Analog Board can be controlled by any  Module that has an SPI Communications function.

For further information on implementing the SPI interface, please refer to the user manual for the I/O 24 module.

FEATURES

• 1 x 8 Channel 10 bit Analog to Digital Converter (MCP3008)
• 1 x 12 bit Digital to Analog Converter with 2 Buffered Outputs
• Screw Terminal Blocks for Analog Inputs and Outputs
• Easy connection to the I/O port via a 10‐way box header that suits a standard IDC connector.
• 72mm Standard width for DIN Rail Modules

ABSOLUTE MAXIMUM RATINGS:

MCP3008

• VDD: 7.0V
• All inputs and outputs w.r.t. VSS: ‐0.6V to VDD +0.6V
• Storage temperature: ‐65°C to +150°C
• Ambient temp. with power applied: ‐65°C to +125°C
• ESD protection on all pins: > 4 kV

MCP4922

• VDD.: 6.5V
• All inputs and outputs w.r.t VSS: AVSS –0.3V to VDD+0.3V
• Current at
• Input Pins: ±2 mA
• Supply Pins: ±50 mA
• Output Pins: ±25 mA
• Storage temperature: ‐65°C to +150°C
• Ambient temp. with power applied: ‐55°C to +125°C
• ESD protection on all pins:  ≥ 4 kV (HBM), ≥ 400V (MM)
• Maximum Junction Temperature (TJ):  +150°C

Development  Resources: demo codes, schematics, datasheets, etc

Control  IC: MCP3008    MCP4922

Notes:

1. There may be slight size deviations due to manual measurement, different measuring methods and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angle and display monitor