# Tektronix MSO44B 4-BW-1000 Mixed Signal Oscilloscope - New

## Key Features at a Glance

-   **4 FlexChannel® inputs** — each usable as 1 analog channel, 8 digital logic inputs (with TLP058), or simultaneous analog + spectrum
-   **Bandwidth: 1 GHz** (factory-configured; field-upgradable via node-locked license)
-   **12-bit ADC**, extending to 16 bits in High Res mode at ≤125 MS/s
-   **Sample rate:** 6.25 GS/s real-time on all analog and digital channels
-   **Record length:** 31.25 Mpoints standard (62.5 Mpoints optional, 4-RL-1)
-   **Waveform capture rate:** >500,000 wfms/s (>5,000,000 with FastFrame™)
-   **Display:** 13.3 in optically-bonded 1,920 × 1,080 HD capacitive multi-touch
-   **Maximum digital channels:** 32 (with 4 × TLP058)

# Tektronix MSO44B 1 GHz — 4 Series B Mixed Signal Oscilloscope

**In summary,** the Tektronix MSO44B is a 4-channel Mixed Signal Oscilloscope from the 4 Series B platform, configured with **1 GHz** of analog bandwidth on 4 FlexChannel® inputs. It delivers a 12-bit ADC (16-bit in High Res mode), 6.25 GS/s real-time sample rate on all channels, 31.25 Mpoints standard record length (62.5 Mpoints optional), and a 13.3-inch optically-bonded 1,920 × 1,080 HD capacitive multi-touch display. Each unit ships with one TPP1000 passive probe per channel. The 4 Series B is the second generation of the 4 Series, with a new processing platform that more than doubles responsiveness and significantly accelerates measurements and data transfers.

### What is the Tektronix MSO44B 1 GHz used for?

The MSO44B 1 GHz is used to verify and debug embedded systems, validate power converters, and characterize complex multi-channel designs requiring simultaneous time-domain, frequency-domain, and digital logic visibility. Tektronix identifies the platform as ideal for **embedded systems, three-phase power electronics, automotive electronics, power supply design, and DC-to-DC power converters**. FlexChannel® lets each input act as analog, eight digital inputs (with TLP058), or simultaneous analog + spectrum — so the instrument is reconfigurable without buying additional hardware.

### How does the 4 Series B compare to a traditional 8-bit oscilloscope?

The 4 Series B uses a 12-bit ADC providing 16× the vertical resolution of traditional 8-bit ADCs, with High Res mode extending to 16 bits at ≤125 MS/s. Lower-noise front-end amplifiers further improve fine-detail resolution — critical for engineers measuring millivolt-level switching ripple on high-voltage rails.

Quantitatively, the MSO44B 1 GHz delivers >500,000 wfms/s standard capture (FastFrame™ to >5,000,000 wfms/s), ≤ 7 ps RMS trigger jitter in sample/edge mode, 36 automated measurements, and an auxiliary trigger input rated ≤ 300 VRMS. Standard 1 MΩ DC gain accuracy is ±1.0% (±2.0% at 1 mV/Div and 500 µV/Div). Time base accuracy is ±2.5 × 10⁻⁶ over any ≥ 1 ms interval. Operating range 0 °C to +50 °C; Measurement CAT II (300 V).

The 4 Series B aligns with standards engineers expect: LXI Core 2016 v1.5; 10/100/1000BASE-T Ethernet; USB 2.0 Host, USB 3.0 SuperSpeed, USB 2.0 Device (USBTMC); the TekVPI® probe interface; IVI-COM drivers for LabVIEW, LabWindows/CVI, MATLAB, .NET, Python, and C/C++/C#; and three-phase harmonics analysis per IEEE-519 via optional 4-3PHASE. Safety: UL 61010-1, 61010-2-030; CAN/CSA-C22.2 No. 61010.1, 61010.2.030; EN 61010-1; IEC 61010-1, 61010-2-030; CE marked; RoHS compliant.

### Why engineers choose the 4-channel 4 Series B

-   Four FlexChannel® inputs configured as analog, digital, or analog + spectrum cover the majority of bench debug applications without paying for unused capacity.
-   Each FlexChannel® reconfigures at any time — add a TLP058 and a single input becomes eight digital channels (up to 32 total).
-   The 4-channel model carries the full 4 Series B feature set — 12-bit ADC, 6.25 GS/s, 31.25 Mpoints, Spectrum View, FastAcq™, Visual Trigger, 13.3-in HD touchscreen — at the lower platform entry point.
-   Digital channels share the same 6.25 GS/s sample rate and up to 62.5 Mpoint record length as analog channels — eliminating the traditional MSO compromise.
-   Spectrum View provides independent time- and frequency-domain acquisition paths behind each FlexChannel® — both domains can be optimized simultaneously without the constant tuning of math-based FFTs.

### Common applications

-   Embedded systems debug — time-correlated analog rails plus I²C, SPI, eSPI, I3C, UART, CAN, CAN FD, LIN, FlexRay, SENT, and other buses (with decode options)
-   Switch-mode power supply design — ripple, switching loss, dv/dt, di/dt, SOA, in-rush current, harmonics (4-PWR-BAS / 4-PWR)
-   Wide-bandgap (SiC / GaN) validation per JEDEC and IEC using the 4-WBG-DPT Double Pulse Test option, paired with IsoVu™ isolated probes
-   Mixed-domain analysis — Spectrum View + RF vs. Time + Spectrograms + IQ capture for noise hunting, EMI investigation, intermittent RF events
-   Compliance and production test — Mask/Limit testing (4-MTM), automated pass/fail, bus protocol triggering

* * *

## Accessories Supplied

Passive probes

One TPP1000 per channel — 1 GHz probes (1 GHz/1.5 GHz models)

Installation & safety manual

Printed

Embedded Help

Built into the instrument

Power cord

Selected by region at order

Calibration certificate

Documenting traceability to National Metrology Institute(s); ISO 9001 / ISO 17025 quality system registration

Warranty

One year on instrument and one year on included probes

* * *

## Product Core & Specifications

The 4 Series B pairs a 13.3-inch HD optically-bonded display — the largest in its class — with a streamlined front panel: color-coded LED light rings, dedicated Run/Stop, Single Sequence, Force Trigger, Default Setup, Autoset, and Quick-save buttons. Stacked display mode automatically gives each waveform its own graticule slice so every channel uses the full ADC range simultaneously, eliminating the visibility-vs-accuracy trade-off. Variable font sizing (12–20 point) scales the entire UI, and the capacitive touchscreen supports drag, pinch, expand, and swipe gestures.

Behind each FlexChannel®, Tektronix's patented Spectrum View architecture provides both a time-domain decimator and a frequency-domain digital downconverter (DDC). The two acquisition paths run independently, so time-domain settings (sample rate, record length, time/div) and frequency-domain settings (center frequency, span, RBW) can be optimized simultaneously — something math-based FFTs cannot do. Channel Power (CHP), ACPR, and Occupied Bandwidth (OBW) measurements are integrated as standard on each channel.

### Model overview & vertical / horizontal system

FlexChannel inputs / max analog

4 / 4

Max digital channels (with TLP058)

32

Configured analog bandwidth

1 GHz

Bandwidth upgrade path

200 → 350 → 500 → 1000 → 1500 MHz (node-locked / floating license)

ADC resolution

12 bits (extending to 16 bits in High Res mode)

Vertical resolution by sample rate

8b @ 6.25 GS/s; 12b @ 3.125 GS/s; 13b @ 1.25 GS/s; 14b @ 625 MS/s; 15b @ 250 MS/s; 16b @ ≤125 MS/s

Sample rate

6.25 GS/s on all channels (160 ps resolution); 12.5–500 GS/s interpolated

Record length (std / opt)

31.25 Mpoints / 62.5 Mpoints (4-RL-1)

Waveform capture rate (typ.)

\>500,000 wfms/s; FastFrame™ >5,000,000 wfms/s

Aux trigger input

≤ 300 VRMS (Edge Trigger only)

DC Gain Accuracy

1 MΩ: ±1.0% (±2.0% at 1 mV/Div and 500 µV/Div); 50 Ω: ±1.0% (±2.5% at 1 mV/Div and 500 µV/Div)

Input coupling / impedance

DC, AC · 50 Ω ± 1%; 1 MΩ ± 1% with 13.0 pF ± 1.5 pF

Input sensitivity

1 MΩ: 500 µV/div to 10 V/div (1-2-5); 50 Ω: 500 µV/div to 1 V/div (1-2-5)

Max input voltage

50 Ω: 5 VRMS (peaks ≤ ±20 V, DF ≤ 6.25%); 1 MΩ: 300 VRMS (derated above 4.5 MHz)

Time base range / accuracy

20 ps/div to 1,000 s/div · ±2.5 × 10⁻⁶ over any ≥ 1 ms interval

### Digital channels (TLP058) — vertical system

Channels per probe / max digital

8 (D7–D0) per TLP058, traded for 1 analog channel · max 32

Threshold range / resolution / accuracy

±40 V · 10 mV · ± \[100 mV + 3% of threshold setting\]

Input dynamic range / min swing (typ.)

30 Vpp ≤200 MHz, 10 Vpp >200 MHz · 400 mVpp minimum

Min pulse width / abs max input / impedance

1 ns · ±42 V peak · 100 kΩ · 2 pF (typ.)

### Trigger & acquisition

Modes / coupling / holdoff

Auto, Normal, Single · DC, HF Reject (>50 kHz), LF Reject (<50 kHz), Noise Reject · Holdoff 0 ns to 20 s

Standard triggers

Edge, Pulse Width, Runt, Timeout, Window, Logic, Setup & Hold, Rise/Fall Time, Parallel Bus, Sequence, Visual Trigger; Video (opt.); RF vs. Time (opt.)

Trigger jitter (typ.)

≤ 7 ps RMS (sample mode, edge-type trigger)

Acquisition modes

Sample · Peak Detect (640 ps glitches at all sweep speeds) · Averaging (2–10,240) · Envelope · High Res · FastAcq® · Roll · History · FastFrame™

FastAcq® rate

\>500,000 wfms/s one channel; >100,000 wfms/s all channels

FastFrame™ trigger rate

\>5,000,000 wfms/s; up to 1,500,000 frames at 50-pt frames

### Measurements, math, Spectrum View

-   **Cursors:** Waveform, V Bars, H Bars, V&H Bars, Polar (XY/XYZ plots)
-   **Automatic measurements:** 36 standard — unlimited badges or collective results table; statistics across current acquisition and all acquisitions
-   **Amplitude / timing categories:** Amplitude, Max, Min, Pk-Pk, Overshoot, Mean, RMS, AC RMS, Top, Base, Area · Period, Frequency, Unit Interval, Data Rate, Pulse Width, Skew, Delay, Rise/Fall Time, Phase, Slew Rate, Burst Width, Duty Cycle, Setup/Hold Time
-   **Math:** arithmetic and advanced equation editor with filters and variables; Invert, Integrate, Differentiate, trig and log functions; user-loadable FIR filters
-   **FFT:** Spectral Magnitude/Phase, Real/Imaginary; Hanning, Rectangular, Hamming, Blackman-Harris, Flattop2, Gaussian, Kaiser-Bessel, TekExp windows
-   **Spectrum View span / RBW:** 18.6 Hz to 312.5 MHz span · 18.6 µHz to 15.625 MHz RBW (extends to 500 MHz / 25 MHz with 4-SV-BW-1)
-   **RF measurements:** Channel Power (CHP), ACPR, Occupied Bandwidth (OBW) — standard on each channel
-   **RF vs. Time (4-SV-RFVT):** Magnitude/Frequency/Phase traces; edge, pulse width, timeout RF triggers; Spectrograms; IQ capture

### Optional protocol trigger, decode & search

I²C, SPI, eSPI, I3C, RS-232/422/485/UART, SPMI, SMBus, CAN, CAN FD, LIN, FlexRay, SENT, PSI5, CXPI, USB 2.0 (LS/FS/HS), eUSB2, Ethernet (10/100), EtherCAT, Audio (I²S/LJ/RJ/TDM), MIL-STD-1553, ARINC 429, Spacewire, NRZ, Manchester, SVID, SDLC, 1-Wire, MDIO, and NFC. Parallel buses up to 48 bits wide are standard and may combine analog and digital channels.

### Probe compatibility & included probes

The instrument uses the **TekVPI®** probe interface, supporting direct attachment of TekVPI active, differential, and current probes — including TIVP Series IsoVu™ isolated probes — without external power. Up to 80 W is available at the front-panel connectors. Each MSO44B ships with one passive probe per channel matched to model bandwidth: TPP0250 (200 MHz models), TPP0500B (350/500 MHz models), TPP1000 (1 GHz/1.5 GHz models).

**Important — Probe Selection:** Included passive probes match the configured bandwidth. To realize the full 1 GHz at the probe tip, ensure any connected probe is rated at or above the instrument bandwidth. For low-voltage / low-loading work, the optional **TPP0502** (500 MHz, 2× attenuation, 12.7 pF) is recommended. For floating, high-common-mode, or high-voltage differential measurements (inverters, SiC/GaN power, current shunts), the **TIVP Series IsoVu™** optically isolated probes are appropriate — up to 1 GHz bandwidth, 120 dB CMRR @ 100 MHz, 2,500 V differential dynamic range, 60 kV common-mode range.

### Display, connectivity, power, physical & environmental

Display

13.3 in (338 mm) optically-bonded LCD · 1,920 × 1,080 HD · capacitive multi-touch · Overlay/Stacked modes · variable font 12–20 pt

Processor / OS / storage

Intel x6413E Elkhart Lake 4-core at 1.5 / 3.0 GHz · Closed Linux · 64 GB eMMC

Interfaces

Front: 3× USB 2.0 Hi-Speed Host · Rear: 2× USB 3.0 SuperSpeed Host, 1× USB 2.0 Device (USBTMC), 10/100/1000BASE-T Ethernet, HDMI 1080p, external 10 MHz reference (±4 ppm), Aux BNC out · LXI Core 2016 v1.5 · Kensington lock

Power / dimensions / weight

400 W max · 100–240 V ±10% · H 11.299 in · W 15.9 in · D 6.1 in · MSO44B: <16 lbs (7.3 kg) · 7U rackmount with optional RM4 kit

Operating temperature / altitude / humidity

0 °C to +50 °C · up to 3,000 m operating (12,000 m non-op) · 5–90% RH to +40 °C, 5–50% RH +40 to +50 °C, non-condensing

Safety / regulatory

UL 61010-1 & 61010-2-030; CAN/CSA-C22.2 No. 61010.1 & 61010.2.030; EN 61010-1; IEC 61010-1 & 61010-2-030; CE; RoHS; CAT II (300 V)

### Optional functionality & software bundles

-   **4-RL-1:** Extend record length to 62.5 Mpoints/channel
-   **4-AFG:** Integrated 50 MHz Arbitrary/Function Generator — 13 waveforms, 250 MS/s, up to 128 k point arb memory
-   **4-PWR-BAS / 4-PWR:** Power measurements and advanced power analysis (FRA/Bode, PSRR, Magnetics with 4-PWR)
-   **4-WBG-DPT:** Wide-Bandgap SiC/GaN Double Pulse Test (JEDEC/IEC)
-   **4-MTM:** Mask & Limit testing
-   **4-SV-RFVT / 4-SV-BW-1:** Spectrum View RF vs. Time + Spectrograms + IQ capture / extend Spectrum View capture bandwidth to 500 MHz
-   **4-VID:** NTSC, PAL, SECAM video triggering
-   **Free with product registration:** 4-digit Digital Voltmeter (DC, AC RMS, DC+AC RMS) and 8-digit Trigger Frequency Counter
-   **Software bundles:** 4-STARTER, 4-PRO-SERIAL, 4-PRO-POWER, 4-PRO-AUTO, 4-PRO-MILGOV, 4-ULTIMATE — 1-year subscription or perpetual

**Important Note — Software Options:** Software options ship as license keys and are not always pre-installed. Contact your Test Architect before ordering if a specific bundle, decode option, or analysis package is required for your application — we will confirm which options can be activated on the unit you are quoted and whether perpetual or subscription licensing best matches your budget cycle.

* * *

This webpage was written by a human with an A.I. "Intern", which may contain errors. Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.

## Details

- **Price:** 27100.0 USD
- **Vendor:** Tektronix
- **Type:** Ms Oscilloscope
- **Tags:** Manufacturers, Mixed Signal, Oscilloscopes, product_manual_group_3, Product_new, Tektronix

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 27100.00 USD | In stock |

## Images

- MSO44B 4-BW-1000 Tektronix Mixed Signal Oscilloscope

---

> Source: [ValueTronics](https://valuetronics.com/products/mso44b-4-bw-1000-tektronix-mixed-signal-oscilloscope-new)
> Updated: 2026-05-29