On the U3-HV, the first 4 flexible I/O are replaced with dedicated high-voltage analog inputs. For valid measurements, the voltage on every analog input pin, with respect to ground, must be within -0.3 to +3.6 volts. The range of single-ended low-voltage analog inputs on the U3-LV is typically 0-2.4 volts or 0-3.6 volts, and the range of differential analog inputs is typically ☒.4 volts (pseudobipolar only). Single-ended measurements can be taken of any line compared to ground, or differential measurements can be taken of any line to any other line.Īnalog input resolution is 12-bits. The LabJack U3 has up to 16 analog inputs available on the flexible I/O lines. The other 8 flexible I/O lines (EIO0-EIO7) are available on the DB15 connector.įor more information, see Section 2.5 - Flexible I/O (FIO/EIO) of the U3 Datasheet. The first 8 flexible I/O lines (FIO0-FIO7) appear on built-in screw terminals. In addition, up to 2 of these lines can be configured as timers, and up to 2 of these lines can be configured as counters. ![]() ![]() The first 16 I/O lines (FIO and EIO ports) on the LabJack U3-LV can be individually configured as digital input, digital output, or analog input.
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