In multi-signal synchronous testing scenarios such as industrial R&D and production line debugging, an oscilloscope with sufficient channels, accurate parameters and controllable cost is the key to improving testing efficiency and avoiding missed fault detection. The DSOX1204A oscilloscope from Keysight InfiniiVision 1000 X Series, with its 4-channel design, high sampling rate and upgradable bandwidth, becomes the preferred solution for multi-signal testing in the 50-200MHz frequency band, especially meeting the requirements of industrial control, automotive electronics and other scenarios.
The DSOX1204A belongs to the industrial/R&D sub-series (DSOX Series) of Keysight 1000 X Series. There are three other core models in the same series, each with a clear positioning, and you can choose flexibly according to "number of channels, whether additional functions are required":
| Model | Core Positioning | Key Difference | Suitable Applications |
|---|
| DSOX1202A | 2-channel Basic Oscilloscope | 2 analog channels, no additional functions | Single/dual channel signal observation (e.g. serial port signal detection) |
| DSOX1202G | 2-channel Advanced Testing | 2 analog channels, with 20MHz function generator + Bode plot | Dual signal + excitation generation (e.g. small signal amplification testing) |
| DSOX1204A | Four-channel basic test | 4 analog channels, no additional functions | Multi-signal synchronous observation (e.g. inverter drive test) |
| DSOX1204G | 4-channel Advanced Test | 4 analog channels, with 20MHz function generator + Bode plot | Multiple signals + stimulus generation (e.g. power supply feedback test) |
Parameters directly determine test capability. The core parameters of DSOX1204A are designed around "multi-signal synchronous capture and accurate detail observation", fully covering the requirements of industrial scenarios:
Bandwidth and Upgradeability: Base bandwidth is 70MHz, which can be upgraded via options (100MHz option D1200BW1A, 200MHz option D1200BW2A). You can purchase it according to your basic requirements at the initial stage, and no need to replace the whole machine when your business upgrades later, which controls the long-term cost.
Channels and Triggering: 4 analog channels, with external trigger input on the rear panel (no display), which can capture 4 channels of signals synchronously (such as power supply, clock, data and control signals of industrial control boards), avoiding the problem of "multiple tests, out of sync" of single/dual-channel oscilloscopes.
Sample Rate and Memory Depth: When operating in single channel or half channels (only using channels 1&3, 2&4), the maximum sample rate is 2GSa/s and the memory depth is 2M points; when channels 3-4 are used simultaneously, the sample rate is 1GSa/s and the memory depth is 1M point. 2GSa/s sample rate can accurately capture edge details of high-frequency signals (such as the rising edge of 100MHz pulses), and 2M-point memory depth can record waveform changes over several seconds (facilitating observation of signal fluctuations during device startup).
Waveform Capture and Protocol Analysis: Capture rate of ≥200,000 waveforms per second allows rapid capture of rare signal glitches (such as narrow pulse interference in drive signals); it comes standard with I²C, SPI, UART/RS-232, CAN, LIN serial protocol decoding, so you can directly analyze industrial bus data (such as error frames on CAN bus) without purchasing an extra analyzer;
Basic Auxiliary Functions: It integrates a 3-digit digital voltmeter (DVM) and a 5-digit frequency counter, which allows you to quickly measure DC/AC voltage and signal frequency without configuring oscilloscope capture. It is suitable for rapid troubleshooting of basic issues such as "signal presence, voltage status" on production lines.
The supporting tools of DSOX1204A further enhance its "multi-scenario adaptability" and can meet complex test requirements without additional purchases:
Standard Probes: Four N2140A 200MHz passive probes with switchable 1:1/10:1 attenuation ratio, compatible with the upgraded 200MHz bandwidth test. The probe attenuation ratio can be flexibly adjusted according to the signal amplitude (e.g. use 10:1 attenuation for 10V power signals, 1:1 for 500mV small signals);
Standard Software: BenchVue Oscilloscope Application Software (BV0004B), which supports remote control of the oscilloscope via PC and batch export of data to Excel/Word/MATLAB. It is suitable for multi-device linkage or automated testing (such as statistical analysis of batch test data on production lines);
Optional Software: D9010BSEO Infiniium Offline Analysis Software, which enables reviewing waveform data on a PC without an oscilloscope, facilitating troubleshooting and analysis in the later R&D stage;
Optional Accessories: N2738A Carrying Case (suitable for field maintenance), N2138A Rack Mount Kit (for fixed installation in equipment rooms), 10076C High Voltage Probe (for 3.7kV high voltage applications, such as power supply testing).
4-channel simultaneous testing doubles efficiency:In industrial scenarios, when commissioning inverters and control boards, it is required to observe "multiple-channel drive signals + power signals" simultaneously. The 4 channels of DSOX1204A allow one-time connection, avoiding repeated plugging and unplugging of probes, and improving test efficiency by more than 50%;
High parameters ensure accuracy and avoid missed detection: The 2GSa/s sampling rate can accurately capture the rising edge (≤3.5ns) of 100MHz signals, the 2M point memory depth can record long-duration waveforms, and the capture rate of ≥200,000 waveforms per second can capture "microsecond glitches" in drive signals (such glitches easily cause false triggering of IGBT, and are often missed by single-channel oscilloscopes);
No redundant functions for more controllable cost: Compared with DSOX1204G, DSOX1204A omits the "built-in function generator + Bode plot" functions. If users already have an independent function generator (which most industrial customers already equip), choosing DSOX1204A can save unnecessary costs, and allow you to allocate the budget to more required configurations such as purchasing additional probes or upgrading bandwidth;
Bandwidth upgradeable to protect long-term investment: You can purchase the 70MHz basic model at the initial stage, and if you need to test 200MHz high-speed SPI signals later, you only need to purchase an upgrade option, no need to replace the whole instrument. It is especially suitable for small and medium-sized enterprises with gradually expanding business.
Industrial Control Board Debugging: When debugging PLC and inverter control boards, 4-channel synchronous observation of "4-channel IGBT drive signals" can be implemented. With 2GSa/s sampling rate, you can check whether the rising/falling edges of drive pulses are distorted (distortion will cause IGBT overheating). Meanwhile, the CAN protocol decoding function is used to analyze communication data between the control board and the upper computer, so as to quickly locate "communication timeout and data packet loss" problems;
Automotive Electronic Bus Testing: When testing automotive body CAN/LIN buses, you can connect 1 channel to CAN_H, 1 channel to CAN_L, 1 channel to power supply and 1 channel to wake-up signal, realizing 4-channel synchronous observation of "bus signal + power fluctuation + wake-up timing". The capture rate of ≥200,000 waveforms per second can capture "occasional bus acknowledgment errors" and avoid communication interruption during vehicle driving;
Embedded System R&D: When developing a single-chip microcomputer control system, connect 4 channels to "clock signal, data signal, chip select signal and interrupt signal" respectively, record "signal interaction within a few seconds" through 2M points of deep memory, observe whether the timing of other signals is normal when an interrupt is triggered, and quickly troubleshoot system crashes caused by "timing conflicts".
If you are confused about "whether to choose DSOX1204A or DSOX1204G", you can make your decision based on two aspects: functional requirements and existing resources:
| Comparison Dimension | DSOX1204A (Recommended) | DSOX1204G (Advanced) | Selection Guide |
|---|
| Core Features | 4-channel oscilloscope + protocol analysis + DVM/counter | 4-channel oscilloscope + protocol analysis + DVM/counter + built-in arbitrary function generator + Bode plot | If you already have a standalone function generator → choose A; if you need an all-in-one tool → choose G |
| Cost | More affordable | Slightly higher cost | Limited budget and basic functions required → choose A; Sufficient budget and pursuit of convenience → choose G |
| Target Users | Industrial customers with existing test equipment | R&D / educational institutions without external equipment | For industrial production lines, maintenance → choose A; For university laboratories, startup R&D → choose G |
To learn about the compatibility of DSOX1204A with your existing test and measurement equipment, please feel free to contact us — we will provide the most suitable product selection based on your actual testing requirements, Contact Us>>
