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330-668-1444Model DI-1120
Data Acquisition USB DAQ and Data Logger System, 14-bit, 160,000 S/s Throughput
Stock
This product is now obsolete. Consider the DI-4208-U as a replacement.
- Includes a DI-1120 instrument, a 6-foot USB cable, a screwdriver for signal connections, and downloadable WinDaq software
- Direct replacement for the DI-155 data acquisition start kit (compare)
- Four armored analog differential inputs
- Programmable range per channel: ±2, 5, 10, 20, 50, 100 V full scale
- Up to 120 V rms without damage
- 80 dB common mode rejection
- Supports ChannelStretch™ multi-unit synchronization - Unlock code required per device - see Accessories
- Adaptable low-pass filter per channel
- Corner frequency set as a function of sampling rate
- 12 to 14-bit analog-to-digital resolution
- 160 kHz sample throughput rate
- Seven digital ports
- Programmable per port as input or switch
- Support for rate measurements to 50 kHz
- Support for 16-bit counter
- Wide-ranging software support includes:
- Ready-to-run WinDaq software
- Published protocol for software development in non-Windows operating systems
- Use the DI-1120 Resolution Calculator to determine how small a change you can detect
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Description
DI-1120 USB Data Acquisition starter kit with Windaq software. Features 4 differential analog input channels, 14-bit measurement resolution, and a full scale range of ±2V to ±100V.
Model DI-1120 delivers premium analog performance at a surprisingly affordable price. Four analog input channels provide differential measurement flexibility and programmable ranges per channel of ±2, ±5, ±10, ±20, ±50, and ±100 V full scale. The differential input configuration provides noise rejection, easily adapts to single-ended signal sources, and is protected to 120 V rms so that inevitable measurement mishaps will not harm the instrument. The front end feeds a variable resolution, 14-bit ADC that ranges from 12 to 14 bits as a function of sampling rate. Lower sampling rates deliver higher resolution readings. The maximum sampling throughput rate of the DI-1120 is 160 kHz, providing 12 bits of resolution. Below 40 kHz the instrument provides 14-bit measurement resolution. Rounding off the analog subsystem are low-pass filters per channel with automatic corner frequency selection as a function of sampling rate. All these features combine to provide pure data acquisition power at an unmatched price point.
The DI-1120 provides 7 digital ports, each configurable as an input or a switch. Input protection is provided to 25 V. When activated as inputs two ports allow dual functionality as discrete inputs, or can be programmed as a counter or rate input respectively. The rate input features a 50 kHz maximum measurement, allocated over twelve programmable measurement ranges (10 Hz to 50 kHz full scale.) The counter input provides 16-bit resolution and a terminal count value of 65,535. The discrete, counter, and rate inputs are members of the same internal scan list used by the analog input channels. This means that all enabled elements are acquired synchronously, which allows meaningful comparisons between analog and digital channels. For example, the rate input measuring engine speed allows rpm data to be acquired in lock-step with analog data. Configured as a switch a digital port can be used to control external loads up to 25 V @ 100 mA, and the switch can be controlled asynchronously during scanning.
Accessories
Description
Unlocks WinDaq for ChannelStretch™ capability allowing you to record synchronous data with multiple devices. Unlock Code required for each device. Unlock Code ONLY. No CD will be shipped. Please Note: If you are ordering this software for a device you already own, you MUST provide the serial number of your device under "Order Notes" during checkout to receive the unlock code. Please allow one (1) business day for processing.
Description
250 Ω ±0.1% Precision, Metal Film, 1/2W, Axial Resistor
Exceptionally low noise; typically 0.10 μV/V
Low voltage coefficient to ±5 ppm/V
Flame retardant coating. RoHS
compliant. Learn More
Description
Ferrite choke reduces interference for USB-based data acquisition products.
Description
Optional USB Cable for use with ChannelStretch™. Dual ferrite cores provide maximum protection against ground bounce that could lockup your PC's USB port during data acquisition. 20.4-inch (520 mm) overall cable length. Recommended whenever products are deployed in our ChannelStretch™ configuration.
Description
Powered 7 port USB hub to synchronize multiple USB devices. Please note: Not all DATAQ Instruments devices support synchronization - check your product datasheet or product page for detailed information. Note: Provided with a US ac adaptor only, and is not suitable for use in countries that require an ac mains connector other than the US type.
Software
WinDaq
Data Acquisition Recording and Playback Software
Included FREE with your DI-1120 purchase. Data Acquisition Recording and Playback Software. Records at the maximum sample rate of the instrument. Unlock code required for ChannelStretch™
Drivers
Drivers only Download
Installs drivers for all contemporary data acquisition hardware products that support WinDaq software.
WinDaq/XL
WinDaq-to-Excel Real Time Link
Real-time data logging directly to Microsoft Excel (supports MS Office 2003 or higher). No programming required. Free Trial Version. Purchase full version on WinDaq/XL product page.
DATAQ SDK .Net
Solutions for .NET Programming Environments
FREE .Net control communicates directly with your DATAQ Instruments device using any .Net programming language. Detailed sample programs included. Fully documented help file. Requires .NET Version 4
Python Example Programs
Available on GitHub
FREE Python example programs using the fully documented device protocol. All sample programs are well-commented to help you get up and running quickly.
MATLAB Example Program
Program in Protocol Level
Learn how to program with MATLAB® in protocol level. Does not require MathWorks' Data Acquisition Toolbox.
LabView Example Programs
Available on GitHub
FREE LabView example programs using the Dataq's ActiveX Controls. All sample programs are well-commented to help you get up and running quickly.
Specifications
| Analog Inputs | |
| Number of Channels: | 4 |
| Configuration: | Differential |
| Full Scale Range: | ±2, 5, 10, 20, 50 100 V full scale |
| Input impedance: | 795 kΩ |
| Absolute accuracy: | @ 25°C, excluding common mode error, 0.25% of full scale range |
| Absolute maximum input without damage: | 120 V rms(normal mode + common mode) |
| Maximum common mode voltage: | 120 V rms |
| Common mode range: | ±20 V dc or peak ac |
| Common mode rejection ratio: | 50 dB (dc - 60 Hz) |
| Channel-to-channel crosstalk rejection: | -80 dB |
| Digital Inputs | |
| Number of ports: | 7 |
| Type: | MOSFET switch |
| Threshold levels: | TTL-compatible |
| Absolute maximum applied voltage (V): | 25 V dc |
| Programmed as a Switch | |
| Maximum drain voltage: | 25 V |
| Maximum sink current: | 100 mA |
| Count/Rate/Inputs | |
| Internal pull-up value: | 4.7 kΩ |
| Input high voltage threshold: | 2.4 V |
| Input low voltage threshold: | 0.8 V |
| Terminal count: | 65,535 |
| Maximum rate frequency: | 50 KHz with one enabled channel, 20 KHz with 2-4 enabled channels, 10 KHz with 5-7 enabled channels |
| Minimum rate frequency: | 0.5 Hz |
| Maximum count frequency: | 50 kHz |
| Reserved Digital Inputs | |
| D0: | WinDaq remote events |
| D1: | WinDaq remote start/stop |
| D2: | Rate input |
| D3: | Count input |
| Power | |
| Power Consumption: | <1.0 Watt, via USB interface |
| ADC Characteristics | |
| Resolution: | 12 to 14-bit (Calculate) |
| Above zero ADC counts: | 2,047 to 8,191 |
| Below zero ADC counts: | 2,048 to 8,192 |
| Maximum sample throughput rate: | 160,000 S/s |
| Minimum sample throughput: | 20 S/s (2.2 samples per hour with WinDaq) |
| Sample rate timing accuracy: | 50 ppm |
| Indicators and Connections | |
| Interface: | USB 2.0 (mini-B style connector) |
| Indicator lights: | 3 LEDs: Power, Active, Event |
| Input Connections: | Two 16-position terminal strips |
| ChannelStretch™ Operation | |
| Maximum number of DI-1120 units: | 16 |
| Maximum channel count: | 64 analog, 112 digital |
| Maximum supported throughput: | ≥480 kHz |
| Synchronization compatibility: | DI-4108, DI-4208, DI-4718B |
| Synchronization conditions: | All instruments must be configured for the same sample rate per channel, ≤20 kHz. Enabled channels per instrument are independent of measurement function and range. |
| PC USB prerequisite: | All instruments must be connected to the same USB controller. The use of USB hubs are recommended to meet this requirement. |
| Environmental | |
| Operating Temperature: | 0 to 50 °C |
| Operating Humidity: | 0 to 90% RH non-condensing |
| Storage Temperature: | -20 to 60 °C |
| Storage Humidity: | 0 to 90% non-condensing |
| Physical Characteristics | |
| Enclosure: | Polycarbonate ABS, 0.080 inch thickness |
| Mounting: | Desktop; bulkhead |
| Dimensions: | 2.625D × 5.5W × 1.53H in. (6.67D × 13.97W × 3.89H cm.) |
| Weight: | 5.7 oz. (162 grams) |
| Software Support | |
| WinDaq software: | OS support |
| Programming: | Instrument protocol, ActiveX Control |
Articles
How To Use Protocol-level Commands
Frequency and True RMS Data Acquisition
Intelligent Oversampling Methods Extend Measurement Flexibility
4-20mA Current Loop Data Acquisition
4-20 mA Measurement Resolution
Active USB Extension Cables Limit Data Loss
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Quick Product Comparison
| Model (DI-) |
Analog channels |
Measurement Range |
Expansion with other models (DI-) |
Max Sample Rate (Hz) |
Low-pass Filter |
ADC Resolution |
Digital I/O |
Stand-alone Capability |
Counter Channel |
Rate Channel |
| 1100 | 4 | ±10 V | - | 40,000 | - | 12 | 2 In | - | - | - |
| 2108 | 4 or 8 | ±10 V | - | 160,000 | Yes | 12-14 | 7 Bi | Yes | Yes | Yes |
| 2108-P | 4 or 8 | B† | 2108-P | 160,000 | Yes | 16 | 7 Bi | Yes | Yes | Yes |
| 4108 | 4 or 8 | C† | 4108, 4208, 4718B, 4730 | 160,000 | Yes | 12-16 | 7 Bi | Yes | Yes | Yes |
| 4208 | 4 or 8 | A† | 4208, 4108, 4730, 4718B | 160,000 | Yes | 12-16 | 7 Bi | Yes | Yes | Yes |
*Expand with ChannelStretch™. Compatibility with other units dependent on model.
†Use the following chart to determine Measurement Ranges:
| A | B | C |
| ±2 V ±5 V ±10 V ±20 V ±50 V ±100 V |
±2.5 V ±5 V ±10 V 0-5 V 0-10 V |
±200 mV ±500 mV ±1 V ±2 V ±5 V ±10 V |