Best Tektronix MSO Mixed Signal Oscilloscope, 4 Series B MSO44B, MSO46B Supplier, Products

The adaptable 4 Series B MSO offers a user interface that functions as you would expect and the performance to handle challenging design problems.It produces precise measurements more quickly and offers an exceptional array of analysis options thanks to a newly updated CPU system.

Product Description

Tektronix 4 Series B MSO Overview

Ideal for debugging and validating embedded systems and power converters, the 4 Series B MSO raises the bar for bench oscilloscope performance, analytical capabilities, and user experience. This second-generation instrument introduces an advanced processing architecture that more than doubles responsiveness and significantly speeds up data transfers and automated measurements while providing complete remote operation and control.

Enhanced Processing Engine

Over 2x faster user interface responsiveness and substantially quicker automated measurements and data transfers.

FlexChannel® Technology

4 or 6 input models. Each channel accepts 1 analog signal or 8 digital logic inputs via the TLP058 logic probe.

13.3-Inch Full HD Display

Optically-bonded 1920 x 1080 high-contrast capacitive multi-touch screen backed by an award-winning interface.

12-Bit ADC Precision

Native 12-bit analog-to-digital converters deliver up to 16 bits of vertical resolution in High Res acquisition mode.

Technical Specifications

Input & Acquisition System

  • FlexChannel® Inputs: 4 or 6 channels (Each provides 1 analog signal or 8 digital logic inputs via TLP058 probe)
  • Bandwidth (Upgradable): 200 MHz, 350 MHz, 500 MHz, 1 GHz, 1.5 GHz
  • Real-Time Sample Rate: 6.25 GS/s across all analog and digital channels
  • Record Length: 31.25 Mpoints standard (62.5 Mpoints optional upgrade)
  • Waveform Capture Rate: >500,000 waveforms/s
  • Vertical Resolution: 12-bit ADC (up to 16 bits in High Res mode)

Triggering & Analysis

  • Standard Trigger Types: Edge, Pulse Width, Runt, Timeout, Window, Logic, Setup & Hold, Rise/Fall Time, Parallel Bus, Sequence, Visual Trigger, Video (opt), RF vs. Time (opt)
  • Auxiliary Trigger: ≤300 VRMS (Edge Trigger only)
  • Standard Analysis: 36 Measurements, Waveform/V&H Cursors, Spectrum View (independent time/frequency controls), FastFrame™ (>5,000,000 wfms/s), Trend/Histogram Plots, Advanced Math
  • Optional Analysis Packages: Advanced Spectrum View, RF vs. Time, Mask/Limit Testing, Advanced Power Measurements, Three-Phase Electrical Analysis (6-ch only)

Protocols, Display & I/O

  • Optional Protocol Decode/Trigger: I2C, SPI, eSPI, I3C, RS-232/422/485/UART, SPMI, SMBus, CAN, CAN FD, CAN XL, LIN, FlexRay, SENT, PSI5, CXPI, USB 2.0, eUSB2.0, Ethernet, EtherCAT, Audio, MIL-STD-1553, ARINC 429, Spacewire, NRZ, Manchester, SVID, SDLC, 1-Wire, MDIO, NFC
  • Arbitrary/Function Generator (Optional): 50 MHz generation; Sine, Square, Pulse, Ramp, Noise, Cardiac & more
  • Integrated Free Instruments: 4-digit DVM (AC/DC RMS) & 8-digit Trigger Frequency Counter (free w/ registration)
  • Display & Connectivity: 13.3" Full HD (1920x1080) capacitive multi-touch; 6x USB ports (2.0/3.1), LAN (10/100/1000 Base-T Ethernet), HDMI output

Model Comparison: MSO44B vs. MSO46B

Parameter 4 Channel Model (MSO44B) 6 Channel Model (MSO46B)
FlexChannel Inputs 4 Channels 6 Channels
Maximum Analog Channels 4 6
Maximum Digital Channels (with logic probes) 32 48
Auxiliary Trigger Input ≤300 VRMS (Edge Trigger only)
Bandwidth (Calculated Rise Time) 200 MHz (2.3 ns), 350 MHz (1.3 ns), 500 MHz (900 ps), 1 GHz (450 ps), 1.5 GHz (333 ps)
DC Gain Accuracy (50 Ω) ±1.0%, (±2.5% at 1 mV/Div and 500 µV/Div), de-rated at 0.100%/°C above 30 °C
DC Gain Accuracy (1 MΩ & 250 kΩ) ±1.0%, (±2.0% at 1 mV/Div and 500 µV/Div), de-rated at 0.100%/°C above 30 °C
ADC Resolution 12 bits
Vertical Resolution (High Res Mode) 8 bits @ 6.25 GS/s | 12 bits @ 3.125 GS/s | 13 bits @ 1.25 GS/s | 14 bits @ 625 MS/s | 15 bits @ 250 MS/s | 16 bits @ ≤125 MS/s
Sample Rate 6.25 GS/s on all analog / digital channels (160 ps resolution)
Record Length 31.25 Mpoints standard (62.5 Mpoints optional upgrade)
Waveform Capture Rate >500,000 wfms/s typical
Arbitrary / Function Generator Optional 50 MHz with 13 predefined waveform types
Digital Voltmeter (DVM) 4-digit DVM (free with product registration)
Trigger Frequency Counter 8-digit frequency counter (free with product registration)

Physical Dimensions & Weight

Instrument Dimensions

Height: 11.299 in (286.99 mm)
Width: 15.9 in (405 mm)
Depth: 6.1 in (155 mm)

Unit Weight

MSO44B (4 Channels): < 15.96 lbs (7.25 kg)
MSO46B (6 Channels): < 16.55 lbs (7.5 kg)

Manuals & Documentation Resources

Access documentation, service manuals, and datasheets for the Tektronix 4 Series B MSO instruments:

Tektronix 4SeriesMSO-Service-077154702_RevA.pdf
Tektronix 4SeriesMSO-Service-077154702_RevA.pdf
Service Manual
Tektronix 4SeriesBMSO-Datasheet-48W740167.pdf
Tektronix 4SeriesBMSO-Datasheet-48W740167.pdf
Datasheet Specification
Tektronix 4-5-6-Series-MSO_Help.pdf
Tektronix 4-5-6-Series-MSO_Help.pdf
User Help Guide
KEYSIG~1.PDF
KEYSIG~1.PDF
Reference Manual

Frequently Asked Questions (FAQ)

Q: What are the primary differences between the MSO44B and MSO46B models?

The MSO44B includes 4 FlexChannel® inputs supporting up to 4 analog channels and 32 digital logic channels. The MSO46B features 6 FlexChannel® inputs accommodating up to 6 analog channels, 48 digital logic channels, and exclusive support for Three-Phase Electrical Analysis.

Q: How does FlexChannel® technology work on the 4 Series B MSO?

Each FlexChannel® input can be used as a single analog channel (viewable in time domain, spectrum domain, or both simultaneously) or converted into 8 digital logic channels by attaching an optional TLP058 logic probe, eliminating dedicated digital-only port limitations.

Q: What vertical resolution is supported by the 4 Series B MSO?

The instrument features hardware 12-bit ADC vertical resolution at up to 3.125 GS/s. In High Res mode, the resolution dynamically increases up to 16 bits at sample rates of 125 MS/s or below.

Q: Can bandwidth and record length be upgraded after purchase?

Yes, analog bandwidth is fully upgradable across 200 MHz, 350 MHz, 500 MHz, 1 GHz, and 1.5 GHz options. Standard record length can also be upgraded from 31.25 Mpoints to 62.5 Mpoints per channel.

Q: What makes the display and user interface stand out on this model?

The 4 Series B MSO features an optically-bonded 13.3-inch Full HD (1920 x 1080) capacitive touchscreen with multi-touch gestures, paired with an award-winning interface designed specifically for intuitive touch navigation and remote desktop collaboration.

Q: What free built-in features are included upon product registration?

Upon product registration, users receive complimentary access to an integrated 4-digit Digital Voltmeter (AC RMS, DC, and DC+AC RMS voltage) and an 8-digit Trigger Frequency Counter.

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