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OMB-DAQ-2408
24-Bit Multifunction USB Data Acquisition Modules for Temperature and Voltage Measurement
Product Specs
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| A/D Conversion | ADS1256, 24-bit Sigma Delta |
| Analog I/O Note | Analog Input Note: ANALOG INPUT;A/D Converter Type: ADS1256, 24-bit Sigma Delta;A/D Data Rates: 3750 S/s, 2000 S/s, 1000 S/s, 500 S/s, 100 S/s, 60 S/s, 50 S/s, 25 S/s, 10 S/s, 5 S/s, 2.5 S/s;Throughput (Software-Selectable for Single Channel and Multiple Channels); Single Channel: 2.5 to 1102.94 S/s; Multiple Channels: 0.16 to 1102.94 Hz;Number of Channels: Up to 16 channels individually software-selectable as single ended (SE) or differential (DIFF); thermocouples require differential mode; for each channel configured as differential, you lose one single-ended channel;Input Isolation: 500 Vdc min between field wiring and USB interface;Channel Configurations: Temperature sensor input,;software-selectable to match sensor type; voltage input;Input Voltage Range; Thermocouple Mode: ±0.078125V; Voltage Mode (Software-Selectable); ±10V, ±5V, ±2.5V, ±1.25V, ±0.625V,; ±0.3125V, ±0.15625V, ±0.078125V;Absolute Maximum Input Voltage; CxH-CxL Relative to GND: ±22V max (power on), ±10V max (power off);Input Impedance: 10 MΩ (power on), 390Ω (power off);Input Leakage Current: ±20 nA;Input Voltage: >±22V (power on/off): ±1µ A max;Input Capacitance: 590 pf;Maximum Working Voltage (Signal + Common Mode); Voltage Mode: ±10.25V max;Common Mode Rejection Ratio; Thermocouple Mode (fIN = 60 Hz): 110 dB; Voltage Mode (fIN = 60 Hz, All Input Ranges): 90 dB;ADC Resolution: 24-bits;Crosstalk: Adjacent channels, 100 dB;Input Coupling: DC;Channel Gain Queue: Up to 64 elements, software-selectable channel and range;Warm-Up Time: 45 minutes min;Open Thermocouple Detect: Software-selectable for each channel;CJC Sensor Accuracy; 15 to 35°C: ±0.5°C typ; 0 to 55°C: ±1.0°C max |
| Bandwidth | 1 MHz |
| Breakdown Voltage | Drain to Source: 50 V |
| CMRR | Thermocouple Mode (fIN = 60 Hz): 110 dB, Voltage Mode (fIN = 60 Hz, All Input Ranges): 90 dB |
| Configuration Parameters | Alarm Functionality, Pull-Up/Down Configuration, Thermocouple Type Selection, User-Configurable Input/Output |
| Data Interface | Ethernet, USB 1.1, USB 2.0 |
| Data Interface Note | Configuration Method: TracerDAQ Software;Output Configuration: Digital: Each DIO bit can be independently read from (DIN) or written to (DOUT). DIN bits can be read at any time whether the DOUT is active or tri-stated.;Supported Operating System: Microsoft Windows® VISTA/7/8/10 (32-bit and 64-bit) |
| Digital I/O Note | DIGITAL INPUT Number of I/O: 8 channels Configuration: Each DIO bit can be independently read from (DIN) or written to (DOUT). DIN bits can be read at any time whether the DOUT is active or tri-stated. Input Voltage Range: 0 to 15V Input Type: CMOS (Schmitt trigger) Input Characteristics: 47 kΩ pull-up/pull-down resistor, 28 Ω series resistor Maximum Input Voltage Range: 0 to 20V max (power on/off, relative to DGND) Pull-Up/Pull-Down Configuration: All pins pulled up to 5V through individual 47 kΩ resistors (the J6 shorting block default position is pins 1 and 2) Pull-down capability is available by placing the J6 shorting block across pins 2 and 3 Transfer Rate (Software Paced): 500 port reads or single bit reads per second typ Input High Voltage: 1.3 to 2.2V Input Low Voltage: 1.5 to 0.6V Schmitt Trigger Hysteresis: 0.4V to 1.2 Output Characteristics: 47 kΩ pull-up, open drain (DMOS transistor) internally connected to DGND Pull-Up Configuration: All pins pulled up to 5V through individual 47 k? resistors (the J6 shorting block default position is pins 1 and 2). Transfer Rate (Software Paced) Digital Output: 500 port writes or single bit writes per second typ Output Voltage Range: 0 to 5V (no external pull up resistor, internal 47 Ωk pull-up resistors connected to 5V by default); 0 to 15V max Drain to Source Breakdown Voltage: 50V min, Off State Leakage Current: 1.0 µA Sink Current Capability: 150 mA max (continuous) per output pin 150 mA max (continuous) for all eight channels DMOS Transistor On-Resistance (Drain to Source): 4 Ω "Output Characteristics: 47 kΩ pull-up, open drain (DMOS transistor) internally connected to DGND Pull-Up Configuration: All pins pulled up to 5V through individual 47 k? resistors (the J6 shorting block default position is pins 1 and 2). Transfer Rate (Software Paced) Digital Output: 500 port writes or single bit writes per second typ Output Voltage Range: 0 to 5V (no external pull up resistor, internal 47 Ωk pull-up resistors connected to 5V by default); 0 to 15V max Drain to Source Breakdown Voltage: 50V min, Off State Leakage Current: 1.0 µA Sink Current Capability: 150 mA max (continuous) per output pin 150 mA max (continuous) for all eight channels DMOS Transistor On-Resistance (Drain to Source): 4 Ω "Output Characteristics: 47 kΩ pull-up, open drain (DMOS transistor) internally connected to DGND Pull-Up Configuration: All pins pulled up to 5V through individual 47 k? resistors (the J6 shorting block default position is pins 1 and 2). Transfer Rate (Software Paced) Digital Output: 500 port writes or single bit writes per second typ Output Voltage Range: 0 to 5V (no external pull up resistor, internal 47 Ωk pull-up resistors connected to 5V by default); 0 to 15V max Drain to Source Breakdown Voltage: 50V min, Off State Leakage Current: 1.0 µA Sink Current Capability: 150 mA max (continuous) per output pin 150 mA max (continuous) for all eight channels DMOS Transistor On-Resistance (Drain to Source): 4 Ω ;Cross talk: 100 dB;Transfer Rate: Digital: 500 port reads or single bit reads per second typ, Counter: System dependent, 500 reads or writes per second;Schmitt Trigger Hysteresis: 0.4V to 1.2V;Sink Current: 150 mA |
| Digital Input | Digital: Low = 0 Vdc |
| Digital Output | 5 V ,AOUTx pins, ±5.0 mA maximum |
| Electrical Connection | Screw Terminal |
| Electrical Output | 0 to 5 Vdc |
| GrossWeightValue | 1.05 |
| Height | 36 mm |
| Impedance Input | 10 MΩ (power on), 390 Ω (power off) |
| Input Capacitance | Analog: 590 pf, Counter: 25 pf |
| Input Configuration | Connected Software |
| Input Type | Thermocouple, Voltage |
| Input Voltage Note | Absolute Maximum Input Voltage: Analog: CxH-CxL Relative to GND - ±22V max (Power On), ±10V maximum (Power Off), Digital: 0 to 20V maximum (Power On/Off, relative to DGND), Counter: CTR0, CTR1 relative to GND and DGND, ±20V maximum (Power On/Off) |
| Isolation | 500 Vdc Minimum between field Wiring and USB Interface |
| LED Indicators | Supply Status LED |
| Leakage Current | ±20 nA |
| Length | 127 mm |
| Memory | EEPROM: 4096 bytes |
| Microcontroller | One high-performance 8-bit RISC microcontroller with USB interface (non-isolated); one high‑performance 16-bit RISC microcontroller for measurements (isolated) |
| Number of Channels, Input | Analog: 16 SE/8 DIFF, Digital: 8, Counter: 2 |
| Number of Channels, Output | Digital: 8 |
| Operating Temperature, Max | 50 °C |
| Operating Temperature, Min | 0 °C |
| Output Settling Time | 10V step, 75 μs |
| Output Signal | Digital |
| Pull-down Resistor | 47 kΩ |
| Pull-up Resistor | 47 kΩ |
| Relative Humidity | 0 to 90% RH non-condensing |
| Sampling Rate | 1 kHz (1,000 updates/second) |
| Sampling Rate Note | The maximum throughput of an OMB-DAQ-2408 module is 1.1 kS/s aggregate. The OMB-DAQ-2408 provides the ability to set conversion rates on a per-channel basis. This feature gives the user flexibility and control over noise averaging for each channel. Analog Input Throughput (Software-Selectable for Single Channel and Multiple Channels): Single Channel:2.5 to 1102.94 S/s, Multiple Channels: 0.16 to 1102.94 Hz Analog Output Throughput: Single-Channel: 1000 S/s maximum, system-dependent, Multi-Channel: 1000 S/s /#ch maximum, system-dependent |
| Series ID | OMB-DAQ-2408-Series |
| Slew Rate | 1.0 V/μs |
| Spec Sheet QR URL | https://www.dwyeromega.com/en-us/usb-data-acquisition-modules-for-temperature-and-voltage/OMB-DAQ-2408-Series/p/OMB-DAQ-2408?guid=701a700000ulrduaaq&utm_source=spec-sheet&utm_medium=qr-code&utm_campaign=prd-sku-spec-sheet&utm_content=auto-generated-sku-level-spec-sheet |
| Storage Temperature, Max | 85 °C |
| Storage Temperature, Min | -40 °C |
| Supply Current | 275 mA |
| Supply Power Note | Quiescent current, 275 mA (includes up to 10 mA for the status LED; does not include any potential loading of the digital I/O bits, 5V user terminal or the AOUTx outputs). 5V User Output Voltage Range: Available at terminal block pin 40, 4.75 to 5.25V 5V User Output Current: Available at terminal block pin 40, 10 mA maximum, Isolation: Measurement system to PC, 500 Vdc minimum |
| Supply Voltage | 5 Vdc |
| USB Cable Length | 3 m |
| Warm Up Time | 45 min |
| Weight | 160 g |
| Width | 89 mm |
| Wire Gauge | 30 to 16 AWG |
| Country of Origin | Hungary |
| See All Specs | |
PDFs & Manuals
Software & Drivers
