The Tektronix TDS540C is a 4-channel, 500 MHz digital oscilloscope featuring monochrome InstaVu™ acquisition technology. Engineered for complex high-speed debugging and circuit analysis, it offers a maximum real-time sample rate of 2 GS/s, high waveform capture rates up to 400,000 wfms/s, and a vertical gain accuracy of ±1%. With 29 built-in automatic measurements, advanced triggering options, and a standard 3.5-inch floppy drive, the TDS540C provides a robust and reliable platform for characterization of electronic designs.

Specifications

General

ParameterValue
Display7-inch monochrome CRT
Warm-Up Period20 minutes
Calibration Interval1 year

Physical

ParameterValue
Power Supply90 to 250 V RMS, 45 to 440 Hz, < 300 W
Operating Temperature0 to +50 °C

Vertical System

ParameterValue
Number of Channels4
Analog Bandwidth500 MHz
Calculated Rise Time700 ps
Vertical Sensitivity Range1 mV/div to 10 V/div
Vertical Gain Accuracy±1%
Input CouplingAC, DC, GND
Input Impedance1 MΩ in parallel with 10 pF, or 50 Ω (selectable)
Maximum Input Voltage1 MΩ: ±400 V (DC + peak AC); 50 Ω: 5 V RMS
Offset Range±1 V (1 to 99.5 mV/div), ±10 V (100 mV to 995 mV/div), ±100 V (1 to 10 V/div)
Channel-to-Channel Isolation≥ 100:1 at 100 MHz
Vertical Position Range±5 divisions

Horizontal System and Acquisition

ParameterValue
Timebase Range500 ps/div to 10 s/div
Timebase Delay Time Range16 ns to 250 s
Timebase Accuracy±25 ppm
Real-Time Sample Rate1 GS/s max (1 or 2 channels), 500 MS/s (3 or 4 channels)
Maximum Record Length50,000 points per channel (standard), up to 500,000 points (Option 1M)
Waveform Update Rate400,000 waveforms/s (InstaVu acquisition mode)

Trigger System

ParameterValue
Trigger ModesAuto, Normal, Single
Trigger SourcesCh 1, Ch 2, Ch 3, Ch 4, AC Line
Trigger CouplingAC, DC, HF Reject, LF Reject, Noise Reject
Trigger Holdoff Range250 ns to 12 s
Trigger Sensitivity0.35 div at 50 MHz, 1.0 div at 500 MHz
Trigger Level Range±12 divisions from center screen

Display Characteristics

ParameterValue
Graticule OptionsFull, Grid, Crosshair, Frame

Connectivity and Interfaces

ParameterValue
GPIB InterfaceIEEE-488.2 GPIB port standard
RS-232 Serial PortAvailable via Option 13
Centronics Parallel PortAvailable via Option 13
VGA Video OutputDB-15 female connector for external monitor
Probe Compensator Output0.5 V into ≥ 1 MΩ, 1 kHz square wave

Power Specifications

ParameterValue
Input Voltage Range90 to 250 V RMS
Line Frequency Range45 to 440 Hz
Power Consumption< 300 W

Display

ParameterValue
CRT Diagonal Size7 in (178 mm)

Acquisition

ParameterValue
Maximum Record Length (Standard)50,000 points per channel
Maximum Record Length (Option 1M)500,000 points (option-dependent)

Storage & Interface Options

ParameterValue
Internal Storage (Setups)10 setups
Internal Storage (Reference Waveforms)4 reference waveforms

Accessories

ParameterValue
Standard Probes Included4× P6139A 10X Passive Probes

Storage

ParameterValue
Floppy Disk Format3.5 in, 1.44 MB or 720 KB, MS-DOS compatible

Technology

Digital Phosphor / InstaVu DSO

Applications

Electronic design debugging, high-speed transient capture, and circuit characterization