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© Sealevel Systems, Inc.
SeaI/O | SL9049 11/2021
470 Series
–
16 A/D, 2 D/A, 8 24V Outputs, 8 Isolated Inputs
Designed using the Maxim MAX197 successive approximation-type A/D chip, the SeaI/O-470 provides eight
differential or 16 single-ended 12-bit inputs. The A/D inputs can be individually configured for sensing 4-20mA
current loop signals. Additionally, the module provides two 12-bit D/A output channels, eight optically isolated
inputs, and eight open-collector outputs, ideal for driving 24V devices commonly found in industrial
environments. Perfect for a variety of data acquisition/control and test & measurement applications, the SeaI/O-
470 includes removable screw terminals, which simplify field-wiring connections.
USE EXTREME CAUTION!
High voltages will be present on the SeaI/O family of products when high voltage is connected. Never
handle the printed circuit board when high voltage is connected. Never handle the printed circuit board
when high voltage signals are connected to the board.
Optically Isolated Inputs
Type
8 non-polarized optically isolated inputs
Voltage Range
5-30VDC
Isolation
2500VAC RMS / 3500VDC
Input Resistance
6.2K Ohms in series
Response Time
4 microseconds
Open-collector Outputs
Output Voltage
Max. 30VDC
Output Current
Max. 500mA (single output)
Output Current
Max. 580mA (all outputs)