MSO1254HD-S | 250 MHz 4Ch 12-Bit MSO with Signal Generator

Name: MSO1254HD-S | 250 MHz 4Ch 12-Bit MSO with Signal Generator
Brand: UNI-T
SKU: 181100300121X
Price: 899.00 USD
Availability: InStock

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12-bit 250 MHz 4-channel mixed signal oscilloscope with 2.5 GSa/s sample rate, 100 Mpts memory depth. Integrates nine instruments in one compact package including AWG and Bode plot analysis, ideal for embedded developers.

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MSO1254HD-S | 250 MHz 4Ch 12-Bit MSO with Signal Generator

Overview

The MSO1254HD-S is a 250 MHz, 4-channel, 12-bit Mixed Signal Oscilloscope built around UNI-T's native 12-bit ADC architecture (R12™) with an integrated 1-channel 25 MHz arbitrary waveform generator. It samples at 2.5 GSa/s with 100 Mpts of memory depth per channel and captures waveforms at up to 1,000,000 wfms/s on a 7-inch capacitive touchscreen powered by Ultra Phosphor 3.0 acquisition technology.

Built for power-electronics validation and design verification in a single instrument, the 12-bit ADC delivers 4,096 vertical levels at the full 250 MHz bandwidth while a 1-channel 25 MHz arbitrary waveform generator drives the device under test from the same front panel. Bode plot analysis characterizes power-supply control loops and filter circuits without a second instrument on the bench. Standard protocol decoding covers the full embedded-systems vocabulary (RS-232, UART, I²C, SPI, RS-422, RS-485, CAN, CAN-FD, LIN, and Audio) at no additional cost.

The 9-in-1 architecture consolidates oscilloscope, logic analyzer (with optional UT-M26 pod), spectrum analyzer, protocol analyzer, digital voltmeter, frequency counter, AWG, Bode plotter, and power analyzer into one instrument. Backed by the 3+2 warranty.

Key Features

250 MHz Bandwidth, 4 Analog Channels — Four-channel acquisition at 12-bit native resolution for mixed-signal debugging, switching-power analysis, and precision sensor work.
R12™ — Native 12-Bit ADC at Full Bandwidth — 4,096 vertical levels at every supported bandwidth — no ERES averaging, no sample-rate trade.
2.5 GSa/s Sample Rate, 100 Mpts/Channel — Captures fast edges with sufficient timing resolution and holds long records without dropping sample rate.
1,000,000 wfms/s Capture Rate — Ultra Phosphor 3.0 intensity-graded display reveals rare anomalies and timing violations that slower scopes miss.
16 Optional Digital Channels — Add mixed-signal debugging with the UT-M26 logic probe pod for time-correlated analog and digital views.
All Protocol Decoding Standard — RS-232/UART, I²C, SPI, RS-422, RS-485, CAN, CAN-FD, LIN, and Audio decoding included at no additional cost.
Built-In 25 MHz Arbitrary Waveform Generator — 1-channel AWG output for stimulus-response testing without a separate signal generator on the bench.
Bode Plot Analysis — Automated frequency response sweeps drive power-supply loop characterization and filter rolloff measurement.
Built-In Spectrum Analyzer — FFT analysis up to 1 Mpts with peak detection and markers for harmonics, clock spurs, and EMI investigation.
56 Automated Measurements — Time, voltage, frequency, and power-quality parameters with statistical analysis and trend graphs.
Built-In Power Analysis — 12 power-quality parameters including efficiency, ripple, and switching loss for switching-supply characterization.
7-Inch Capacitive Touchscreen — 1024×600 multi-gesture display with pinch-to-zoom, drag, and gesture navigation.
Lab-Friendly Connectivity — USB Host/Device, LAN, AUX Out, HDMI, and Generator Out (-S models).
3+2 Warranty — Five-year coverage when registered.

R12™ — Native 12-Bit ADC at Full Bandwidth

R12™ is UNI-T's native 12-bit ADC architecture. It samples at 4,096 quantization levels — sixteen times the vertical detail of a conventional 8-bit oscilloscope — and holds that resolution at the full 250 MHz bandwidth and 2.5 GSa/s sample rate. There's no ERES averaging step, no sample-rate trade, and no asterisk on the spec sheet.

For power-electronics validation at full bandwidth, R12 is what lets the MSO1254HD-S characterize a GaN/SiC half-bridge in the same bench session as the gate-drive ringing analysis. On a switching-node measurement where 8-bit quantization noise would obscure the µV-scale ripple riding on a 400 V rail, the 12-bit resolution recovers the signal that drives design decisions.

R12 12-bit ADC architecture at full bandwidth — Native 12-bit ADC delivers 4,096 vertical levels at full bandwidth

Ultra Phosphor 3.0 — 1,000,000 wfms/s Acquisition

Ultra Phosphor 3.0 drives the acquisition system at up to 1,000,000 waveforms per second with 256 levels of color intensity mapping. The intensity-graded display shows you signal behavior patterns that a slower scope flattens into solid traces — rare glitches, edge jitter, and occasional protocol-layer anomalies appear as faint trace markings against the dominant signal.

For intermittent-fault investigation, this is the difference between catching the event in a two-minute capture and waiting for it across an overnight run. The probability of capturing rare anomalies scales with capture rate; one million waveforms per second puts you in the territory where most timing violations show up before lunch.

Ultra Phosphor 3.0 intensity-graded display — Ultra Phosphor 3.0 reveals rare events with intensity grading

Deep Memory — 100 Mpts Per Channel

100 Mpts of memory depth per channel maintains the full 2.5 GSa/s sample rate across wide time-base settings. You can capture an entire CAN-FD packet sequence, an extended power-on transient, or a long servo control loop without aliasing or missing events. Zoom into any portion of the captured record at full resolution.

Combined with the 1,000,000 wfms/s capture rate, deep memory makes long-record analysis practical for bench debugging — one acquisition can replace a multi-pass capture campaign.

Comprehensive protocol decoding included as standard — Comprehensive protocol decoding included standard

All Protocols Included Standard

Unlike higher-tier families that charge separately for automotive and industrial protocols, the MSO1000HD platform includes RS-232/UART, I²C, SPI, RS-422, RS-485, CAN, CAN-FD, LIN, and Audio decoding standard at no additional cost. This makes it one of the most complete embedded-debug platforms in its segment, with no surprise license invoices when an automotive project crosses your bench.

Each decoder correlates the physical-layer signal with the decoded data above the trace, so you can see signal-integrity anomalies and protocol errors in the same acquisition. Search and trigger on data patterns, error conditions, or specific bus events to isolate intermittent communication faults.

Built-In AWG and Bode Plot Analysis

The integrated 1-channel 25 MHz arbitrary waveform generator outputs sine, square, ramp, pulse, noise, and user-defined arbitrary waveforms directly from the MSO1254HD-S's front panel. For closed-loop testing on power-supply controllers, motor drives, and sensor conditioning circuits, the AWG eliminates a second instrument from the bench — drive the device under test and capture the response on the same time axis.

The Bode plot function sweeps the AWG across a frequency range while measuring gain and phase on the input channel. The result is a frequency-response plot for power-supply control-loop characterization, filter rolloff verification, and amplifier bandwidth measurement — the workflow that normally requires a dedicated network analyzer is now a function on the same instrument that captured the switching waveform.

Built-In Power Analysis — 12 Parameters

12 standard power-quality parameters cover efficiency analysis, switching-loss measurement, safe-operating-area visualization, ripple-and-noise characterization, and harmonic content. The measurements run inline on the captured waveform — no scripting, no external software, no PC connection required.

Combined with the 12-bit ADC and 100 Mpts memory, the power-analysis suite handles workloads that previously required a dedicated power analyzer. For switching-supply validation, gate-drive characterization, and small-signal-on-DC-rail measurements, the integrated functions consolidate a multi-instrument workflow into one bench unit.

Built-In Spectrum Analyzer — FFT to 1 Mpts

Frequency-domain analysis with peak detection, markers, and waterfall display — up to 1 Mpts FFT length. Identify harmonics, clock spurs, switching-frequency content, and EMI contributions without switching to a separate spectrum analyzer or exporting waveform data to PC software.

The same trace that captured a glitch in the time domain immediately reveals its spectral character on the FFT — useful for chasing down EMI sources during pre-compliance work, or for distinguishing switching-supply harmonics from coupled noise on adjacent rails.

Built-in FFT spectrum analyzer up to 1 Mpts — Built-in FFT spectrum analyzer for harmonics and EMI investigation

Mixed-Signal Debugging — 16 Optional Digital Channels

16 optional digital channels add mixed-signal debugging via the UT-M26 logic probe pod. The digital traces display alongside analog channels with full time correlation — see I²C bus traffic and analog ADC output on the same time axis, or watch a control firmware state machine drive the gate signals on a switching power stage.

Time-correlated mixed-signal views are essential for debugging the boundary between firmware and analog hardware. A timing-violation that's invisible on either domain alone often becomes obvious when you can see the digital command and the analog response on the same trace.

56 Automated Measurements with Statistics

56 automated measurements cover time, voltage, frequency, and power-quality parameters with statistical analysis (min, max, mean, standard deviation) and trend graphs over long captures. For QA work and bench characterization, the statistical view is more useful than the instantaneous reading — it tells you whether a parameter is drifting, jittering, or holding steady.

Pass/fail mask testing applies user-defined tolerance bands across captured waveforms — useful for rapid go/no-go testing during bring-up, or for validating board-to-board consistency in small-volume production.

Touch UI and Connectivity

The 7-inch 1024×600 capacitive touchscreen supports pinch-to-zoom, drag, and gesture navigation across waveforms, menus, and measurement readouts. For students and lab newcomers, the touch interface lowers the barrier to advanced features that are buried behind menu trees on older instruments.

Connectivity covers USB Host, USB Device, LAN, AUX Out, and HDMI, plus dedicated AWG Generator Output (-S models). The HDMI output drives an external display for classroom demonstration, and LAN connectivity integrates the instrument into automated test scripts and remote-access workflows.

Detailed Specifications

Parameter	Specification
Bandwidth	250 MHz
Channels	4 Analog + 16 Optional Digital
Sample Rate	2.5 GSa/s
Vertical Resolution	12 bits
Memory Depth	100 Mpts per channel
Capture Rate	1,000,000 wfms/s
Display	7-inch capacitive touchscreen, 1024×600
Touch Screen	Yes
Trigger Modes	Edge, pulse width, video, runt, slope, zone, setup/hold, and more
Protocol Decoding (Standard)	RS-232/UART, I²C, SPI, RS-422, RS-485, CAN, CAN-FD, LIN, Audio
Built-In FFT	Yes — up to 1 Mpts
Built-In Power Analysis	12 parameters
Built-In Spectrum Analyzer	Yes
Automated Measurements	56 with statistics
Built-In AWG	Yes (1Ch, 25 MHz)
Bode Plot Analysis	Yes (-S models)
Logic Analyzer	Optional 16-channel via UT-M26 pod
Interface	USB Host / USB Device / LAN / AUX Out / HDMI / Generator Out
Warranty	3+2 years
RoHS Compliant	Yes

Applications

ICP-4 — R&D Engineer (Embedded / Hardware Design)

Power-Stage Design Verification — Sweep a control loop with the integrated AWG, run Bode plot analysis on the response, and verify gain/phase margins without leaving the instrument. The 12-bit ADC at full 250 MHz captures the switching waveform on the same time axis.
Mixed-Signal Debug — Time-correlated analog and digital views with the optional UT-M26 logic pod. Track firmware state machines against analog responses on the same trace.
Protocol Investigation — All standard embedded protocols included; no license fees for automotive (CAN, CAN-FD, LIN), industrial (RS-422/485), or audio buses.
Signal Integrity Spot Checks — FFT analysis identifies harmonics, clock spurs, and EMI sources without switching to a separate spectrum analyzer.

ICP-5 — Power Electronics Engineer

Closed-Loop Power-Supply Characterization — The integrated AWG drives the control loop while Bode plot analysis measures the response, replacing a multi-instrument workflow with a single-instrument measurement.
Soft-Start and Fault-Recovery Capture — 100 Mpts deep memory records the entire transient at sample-rate resolution; no piecing together multi-pass captures.
Ripple and Noise on DC Rails — The 12-bit ADC resolves µV-scale ripple on multi-hundred-volt DC rails — measurements that an 8-bit scope fundamentally cannot make.
Harmonic Content Investigation — Built-in FFT to 1 Mpts identifies switching-frequency content, harmonics, and coupled noise sources.

Accessories & In the Box

Included with the Instrument

MSO1254HD-S oscilloscope
4 × passive probes (1:1 / 10:1 switchable, bandwidth matched to instrument)
USB cable (USB-A to USB-B)
Power cord (region-appropriate)
Quick-start guide
Factory calibration certificate

Recommended Accessories

UT-M26 — 16-channel logic probe pod for mixed-signal debugging
UT-P07A — 500 MHz passive probe for higher-bandwidth applications
UT-P20, UT-P21, UT-V23 — high-voltage passive probes
UT-P30, UT-P31, UT-P32, UT-P33 — differential probes for floating measurements
UT-P40, UT-P41, UT-P42, UT-P43, UT-P44 — current probes for power-stage and switching-loss measurement
UT-ISOT — isolation transformer for safe line-powered measurements
UT-M13X — oscilloscope demo board for protocol decoding practice and curriculum modules

Need only the basic platform without the AWG? See the MSO1254HD. Need a 150 MHz value-tier option with AWG? See the MSO1154HD-S.

Frequently Asked Questions

What protocols are included with the MSO1254HD-S?

RS-232/UART, I²C, SPI, RS-422, RS-485, CAN, CAN-FD, LIN, and Audio decoding are included standard at no additional cost. All supported protocols are available out of the box — no optional licenses required.

What is the advantage of native 12-bit resolution?

A 12-bit ADC provides 4,096 vertical levels compared to 256 for an 8-bit scope — sixteen times greater detail. This reveals small signals riding on large ones, reduces quantization noise, and improves measurement accuracy on low-amplitude signals like power-supply ripple, sensor outputs, and precision analog circuits. R12™ holds the 12-bit resolution at the full bandwidth and sample rate, with no ERES averaging or sample-rate trade-off.

Can I add digital channels for mixed-signal debugging?

Yes. The UT-M26 logic probe pod adds 16 digital channels for time-correlated analog and digital views.

What waveforms can the built-in AWG produce?

The integrated 1-channel 25 MHz arbitrary waveform generator outputs sine, square, ramp, pulse, noise, DC, and user-defined arbitrary waveforms. It also enables the Bode plot function for automated frequency-response measurement.

How does the MSO1254HD-S compare to the higher-bandwidth UPO2000HD or MSO3000HD scopes?

The MSO1000HD platform shares the same R12™ 12-bit ADC architecture, Ultra Phosphor 3.0 acquisition, and standard-included protocol decoding as the UPO2000HD and MSO3000HD families. The differences are bandwidth (150–250 MHz here vs 100–500 MHz on UPO2000HD and 350–1000 MHz on MSO3000HD), capture rate (1,000,000 wfms/s here vs 1,500,000 wfms/s on MSO3000HD), and the front-panel form factor. For embedded prototyping and mid-tier power-electronics work, the MSO1000HD platform delivers the same architectural advantages at a lower price point.

Is the firmware field-upgradable?

Yes. Firmware updates are free over the product's lifetime and install via USB drive or LAN transfer. Optional license unlocks (such as the LA16 logic-analyzer license, when ordered with the UT-M26 pod) have no expiration.

Part of the MSO1000HD oscilloscope series. See the series page to compare bandwidth and channel options across the lineup.

Warranty

This instrument is backed by UNI-T's 3+2 Year Warranty — 3 years of standard coverage, plus 2 additional years free when you register your product. That's 5 years of total protection at no extra cost.

The warranty covers manufacturing defects and component failures under normal use conditions. UNI-T instruments are built for professional daily use, and our warranty reflects that commitment to long-term reliability.