The Tektronix THS720A is a handheld, battery-operated digital storage oscilloscope with integrated True RMS digital multimeter, purpose-built for field service, troubleshooting, and bench testing. Dual channels deliver 100 MHz bandwidth with 500 MS/s real-time sampling per channel and 2,500-point record length, enabling capture of transient events and waveform detail with 8-bit vertical resolution. The instrument combines oscilloscope functionality—edge, pulse, video, and external triggering with 5 MHz TTL compatibility—with a full-featured 4000-count DMM offering DC/AC voltage, resistance, continuity, and diode test capabilities. Waveform processing includes mathematical operations (add, subtract, multiply, watts calculation), multiple acquisition modes (Sample, Envelope, Average, Peak Detect), and cursor-based measurements for time, frequency, phase, and voltage deltas. The 320 x 240 backlit LCD supports both YT and XY display formats with Sin(x)/x interpolation. Field-proven design weighs just 1.45 kg with 2-hour battery endurance from NiCd rechargeable pack. Maximum float voltage rating is 600 VRMS CAT II per channel, and RS-232 interface enables remote programmability and data transfer.
Technical Specifications
Oscilloscope Core
• Bandwidth: 100 MHz
• Dual channels, 500 MS/s per channel
• Record length: 2,500 points
• Vertical resolution: 8-bit
• Sensitivity: 5 mV to 50 V/div (500 V/div with 10X probe)
• Time/Division: 5 ns to 50 s/div; Roll Mode ≥0.5 s/div
• DC Gain Accuracy: ±2%; Horizontal Accuracy: ±200 ppm
Triggering & Acquisition
• Trigger Types: Edge, Pulse, Video, External (5 MHz TTL)
• Glitch Capture: 8 ns
• Modes: Sample, Envelope, Average, Peak Detect
• Waveform Storage: 10 waveforms
DMM Specifications
• Resolution: 4000 count (3-3/4 digits)
• DC Voltage: 400.0 mV to 880 V; Accuracy ±(0.5% + 5 counts)
• AC Voltage (True RMS): 400.0 mV to 640 V; Accuracy ±(2% + 5 counts)
• Resistance: 400.0 Ω to 40.00 MΩ; Accuracy ±(0.5% + 2 counts)
• Continuity: Audible tone <50 Ω
• DMM Storage: 10 screenshots
Physical & Power
• Dimensions: 177 × 217 × 51 mm; Weight: 1.45 kg
• Power: NiCd rechargeable with AC adapter; Battery life ~2 hours
• Display: 320 × 240 backlit LCD
– Key Features
• Peak Detect acquisition captures 8 ns glitches
• Video triggering with line count and field select
• Waveform math: Add, Subtract, Multiply, Watts (V × I)
• Dual-mode cursor measurements: horizontal bars, vertical bars, paired
• Autorange selection for sensitivity optimization
• Position range: ±10 div
– Typical Applications
• Field service and portable troubleshooting
• Power supply and switching circuit characterization
• Video signal quality assessment
• General-purpose bench testing with integrated multimeter
– Compatibility & Integration
• RS-232 programmable interface
• UL3111-1 Listed, CSA Certified
• 600 VRMS CAT II maximum float voltage per channel
