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OPT-1020, OPT-1120

The OPT-1020/1120 daughter board series provides the analog inputs isolation for the DAQ cards.

The module provides one isolated channel with the jumper-selectable gain (1x/10x) and frequency bandwidth depending on the type. Unlike the multiplexers, this module does not expand the number of analog inputs and it also does not need any control (it works software transparent).

The CAB-2511/2 cable (not included) is used for connection the OPT-1020/1120 board with the DAQ card. If the DAQ card provides the 12V power supply voltages, the OPT-1020/1120 board is powered from the card via CAB-2511/2 cable; if not, external power supply must be used.

If multiple OPT-1020/1120 boards are used, an interconnection cables CAB-1004C and CAB-2604C (up to four boards), or CAB-1008C and CAB-2608C (up to eight boards) are required (not included). Whole set of boards can be connected to the DAQ bards via CAB-2511/2. Please pay attention to the maximum current capacity of the DAQ cards power supply output. Most of DAQ cards are capable to power two or three boards, for higher number it is necessary to use external power supply.

OPT-1020, OPT-1020B, OPT-1120 and OPT-1120B diferences

OPT-1020: bandwidth 20kHz, isolation voltage 2.5kVRMS, screw terminals
OPT-1020B: bandwidth 20kHz, isolation voltage 2.5kVRMS, BNC connector
OPT-1120: bandwidth 120kHz, isolation voltage 1.5kVRMS, screw terminals
OPT-1120B: bandwidth 120kHz, isolation voltage 1.5kVRMS, BNC connector

All other features are identical.

Delivery details

The package includes the board and printed user manual.
Cables etc. need to be ordered separately.

Specifications

Type OPT-1020
OPT-1020B
OPT-1120
OPT-1120B
Analog inputs 1
Input voltage ±10,5V max. (for proper operation)
Input impedance 1MΩ
Overvoltage protection ±24V continuously
Selectable gain 1x, 10x
Bandwidth 0÷20kHz 0÷120kHz
Linearity ±0.025% typ., ±0.05% max.
Output voltage ±11V max. (for proper operation)
Output load >10kΩ
Input connectors screw terminals (OPT-1020/1120)
BNC (OPT-1020B/1120B)
Isolation voltage 2.5kVRMS (3500VDC) 1.5kVRMS
Power supply 12VDC (+5%/-10%), 240mA max.
Dimensions approx. 50x102 mm