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54641D

Keysight Technologies (Agilent HP)Mixed Signal

The Agilent (now Keysight Technologies) 54641D is a high-performance 2+16 channel, 350 MHz Mixed Signal Oscilloscope (MSO). Combining 2 analog channels and 16 digital timing channels, this instrument offers deep MegaZoom memory of 8 MB, a high-definition monochrome display rendering up to 25 million vectors/second with 32 levels of intensity, and advanced serial triggering including I2C, SPI, LIN, CAN, and USB. It is uniquely optimized for debugging complex designs in MCU, CPLD, and embedded system applications.

Embedded SystemsLogic AnalysisSerial Data Analysis

Specifications

General

ParameterValue
InterfacesRS-232, Parallel Port, 3.5-inch Floppy Drive (standard); GPIB, USB (optional via expansion modules)
Display7-inch monochrome CRT with 32 levels of intensity
Probe Compensator Output~1.2 Vp-p into ≥ 100 kΩ, ~1.2 kHz square wave
Quick Help LanguagesEnglish, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese
AutoscaleSingle-button automatic setup of active channels, vertical scale, horizontal scale, and trigger

Physical

ParameterValue
Power Supply100 - 240 V AC (±10%), 47 - 440 Hz, 110 W max
Operating Temperature0 to +55
Dimensions (W×H×D)322.6 × 172.7 × 317.5
Weight4.9 kg

Analog Vertical System

ParameterValue
Analog Input Channels2
Analog Bandwidth (-3 dB)350 MHz
Calculated Rise Time (10% to 90%)1.0 ns
Input CouplingAC, DC, GND
Input Impedance1 MΩ (±1%) || ~13 pF, or 50 Ω (±1.5%)
Input Sensitivity Range2 mV/div to 5 V/div
Vertical Resolution8 bits
Max Input Voltage (1 MOhm)400 V (DC + peak AC)
Max Input Voltage (50 Ohm)5 V rms
DC Gain Accuracy±2% of full scale

Digital Vertical System

ParameterValue
Digital Channels16
Threshold GroupingPOD 1 (D7 - D0), POD 2 (D15 - D8)
Threshold SelectionsTTL, CMOS, ECL, User-defined
Threshold Voltage Range±6.0 V (in 10 mV increments)
Threshold Accuracy±(100 mV + 3% of threshold setting)
Input Impedance (Digital Probe)100 kΩ (±2%) || ~8 pF
Max Input Voltage (Digital Probe)±40 V peak
Minimum Voltage Swing500 mV peak-to-peak
Minimum Detectable Pulse Width2 ns
Maximum Toggle Rate250 MHz

Horizontal System

ParameterValue
Maximum Real-time Sample Rate (Analog)2 GSa/s (single-channel), 1 GSa/s (dual-channel)
Maximum Sample Rate (Digital)1 GSa/s (8 channels), 500 MSa/s (16 channels)
Maximum Record Length (Analog)8 MB (single-channel), 4 MB (dual-channel)
Maximum Record Length (Digital)4 MB (8 channels), 2 MB (16 channels)
Time Base Range1 ns/div to 50 s/div
Time Base Accuracy±0.005% (50 ppm)

Trigger System

ParameterValue
Trigger ModesAuto, Normal, Single
Trigger CouplingAC, DC, LF Reject, HF Reject, Noise Reject
Trigger Holdoff Range60 ns to 10 s
Edge TriggeringRising, falling, or alternating edges on any channel
Pulse Width TriggeringTrigger on pulse width > , < , or = a specific time (2 ns to 10 s)
Pattern/Logic TriggeringTrigger on a combination of high, low, and don't care levels
Serial Bus Triggering OptionsI²C, SPI, LIN, CAN, USB

Acquisition Modes

ParameterValue
Sample ModeReal-time sampling
Peak Detect ModeGlitch capture
Averaging ModeSelectable (2 to 16384)
High Resolution ModeBoxcar filtering increases resolution at slow sweep speeds
Roll Mode500 ms/div to 50 s/div

Waveform Analysis & Measurements

ParameterValue
Automatic Voltage MeasurementsVp-p, Vmax, Vmin, Vtop, Vbase, Vamp, Vavg, Vrms, Overshoot, Preshoot
Automatic Time/Frequency MeasurementsFrequency, Period, Positive Width, Negative Width, Duty Cycle, Rise Time, Fall Time, Delay, Phase
Math FunctionsAddition, subtraction, multiplication, FFT
FFT Window TypesHanning, Flat Top, Rectangular

Display & User Interface

ParameterValue
Display TypeMonochrome LCD
Display Size (Diagonal)5.4-inch
Waveform Update RateUp to 25,000,000 vectors/sec

Environmental & Compliance

ParameterValue
Operating Temperature Range0 °C to +55 °C
Non-Operating Temperature Range-40 °C to +70 °C
Operating Humidity Range95% RH at 40 °C

Trigger

ParameterValue
Internal Trigger SensitivityDC to 100 MHz: 0.35 div or 3.5 mV; 100 MHz to 350 MHz: 1 div or 10 mV
External Trigger SensitivityDC to 100 MHz: 40 mV; 100 MHz to 350 MHz: 120 mV
External Trigger Input Impedance1 MΩ ± 1% || ~13 pF
External Trigger Input Range±10 V
External Trigger Maximum Input Voltage400 V (DC + peak AC)
External Trigger BandwidthDC to 350 MHz
Trigger SourcesChannel 1, Channel 2, Line, External, D0 - D15
TV Trigger FormatsNTSC, PAL, PAL-M, SECAM

Vertical System

ParameterValue
Analog Bandwidth Limit20 MHz (selectable)
Channel-to-Channel IsolationDC to 350 MHz: >40 dB (with channels at same V/div)
Vertical ExpansionCenter or Ground selectable
Probe Attenuation Factors0.1x to 1000x

Acquisition

ParameterValue
Peak Detect Glitch Pulse Width500 ps
Averaging Factor Selections2 to 16384 (power-of-two steps)
High Resolution Mode ResolutionUp to 12 bits (at ≥ 100 μs/div)

Vertical System (Analog)

ParameterValue
Offset Accuracy±(1.5% of channel offset + 2.0% of full scale + 1 mV)

Supplied Accessories

ParameterValue
Supplied Analog ProbesTwo 10073C 10:1 passive probes (500 MHz)
Supplied Digital Probe Kit54620-68701 16-channel digital probe kit

File Management

ParameterValue
Internal Storage Drive3.5-inch floppy disk drive, 1.44 MB MS-DOS format
Supported Image FormatsBMP, PCX, TIF
Supported Data FormatsCSV

General Specifications

ParameterValue
Safety ComplianceCSA C22.2 No. 1010.1, EN 61010-1
EMC ComplianceCISPR 11, EN 50082-1

Technology

Mixed Signal Oscilloscope

Applications

Embedded systems debugging, MCU/CPLD design verification, and digital-to-analog signal analysis