LabJack T8

The T8 features 8 isolated, simultaneous-sampling analog inputs.

• Simultaneous Sampling: Capture phase-critical data accurately across all channels without the time-skew common in multiplexed systems.
• Electrical Isolation: Protect your equipment and maintain signal fidelity. Every analog input channel is galvanically isolated to eliminate ground loops and reject high common-mode voltages.
• Dedicated Amplifier: Each channel has a dedicated amplifier with ranges from ±11 V down to ±0.018 V.
• 40 kSPS per channel: Totaling 320 kSPS.

For more information see: 14.3.2 Analog Inputs - T8

Onboard Signal Analysis

AIN_EF (Analog Input Extended Features) simplifies your workflow by performing mathematical operations directly on the device. This allows for data processing without additional complication or overhead on your host computer. Key features include:

• Min/Max/Average: Samples at a specified rate and duration, then returns calculated values for that data set.
• RMS: Automatically computes the Root Mean Square of a signal.
• Temperature Conversion: Directly calculates temperature from RTD, Thermistor, or Thermocouple inputs.

For a full list of the available modes and information about usage see: 14.1 AIN Extended Features

The LabJack T8 features 20 Digital I/O lines.

Key Capabilities:

• 3.3V Logic
• 5V Tolerant: Directly connect 5V signals.
• Larger Voltages: Connect larger voltages using the LJTick-Divider
• Relays: Control Relays using the LJTick-RelayDriver, or the RB12.

Digital Signal Measurement & Generation

DIO_EF has several modes that measure, count, or generate digital waveforms. These features allow the device to handle high-speed timing and signal logic independently of software polling.

• PWM Output: Generate pulse-width modulated signals with configurable frequency, duty cycle, phase offsets, and pulse counts.
• Counter: Tally how many times a pulse is observed on a line.
• Frequency & Period Measurement: Measure the frequency, period, or pulse width of incoming digital signals.
• Quadrature Decoding: Interface with rotary encoders to track position and direction of rotation.
• Pulse/Line-to-Line Timing: Measure the exact time elapsed between signal edges on two different digital inputs.

For more information and implementation details, see the DIO_EF T-Series Datasheet

The T8 comes equipped with 2, 16-bit analog outputs with specially designed current regulation. Built with an advanced internal power system, these outputs can swing slightly below ground to ensure a true zero-volt minimum, and remain very stable under load.

• Low-Noise Performance: Great for generating clean reference voltages.
• Robust Load Regulation: Features excellent load current compensation.
• Protection: Built in over-current protection.

Key Specifications:

• Resolution: 16-bit
• Output Range: -0.1 to 10 V
• Max Current Drive: 20 mA per channel
  
  

T-series devices can run Lua scripts directly in the firmware. This enables the device to operate autonomously, performing logic and control sequences without the need for a host computer.

Common Applications:

• Standalone Operation: Program the device to run automatically on power-up, making it great for remote or embedded installations.
• Digital Sensor Interfacing: Move the complexity of I2C, SPI, 1-Wire, or SDI-12 communication onto the device. The script handles the low-level protocol, allowing the host app to simply read the final results.
• Custom Logic & Alarms: Monitor inputs and trigger digital outputs or specific actions based on user-defined thresholds.
• Data Pre-processing: Scale, filter, or format data onboard before sending it to your software or cloud dashboard.
• Complex Sequences: Automate multi-step processes, such as ramp-and-soak temperature profiles.
• Digital Sensors: Place of the complexity of interfacing with digital sensors in the device. The host app will then only need to read the final results.

For getting started guides and a library of example scripts, see 25.0 Lua Scripting