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The Tektronix TDS 380 is a 400 MHz BW, 2 Channel, Analog Oscilloscope. It has 21 automatic waveform measurements, and four acquisition modes. Sample mode provides real-time sampling at the highest throughput rate. At slower sweep speeds, Peak Detect indicates if there is higher frequency information buried in a waveform, warning the user to increase the sweep speed to avoid aliasing. Envelope mode, by including the highest and lowest points over many acquisitions, shows variations in the signal over time. From several acquisitions, Average mode calculates an average value for each waveform point, reducing apparent noise in repetitive signals. The user-friendly TDS380 interface retains traditional analog simplicity yet gives quick access to the wide range of digital functions. Frequently used functions, like position and trigger level, are controlled directly with buttons and knobs; secondary functions are menu-driven. Option 14, the communications option, includes GPIB and RS-232-C interfaces, VGA monitor output, and a Centronics-type parallel printer port. Characteristics. Bandwidth: 400 MHz. Sample Rate: 2 GS/s on each channel. Channels: Two identical channels, each with invert function. Sensitivity: 2 mV to 10 V/div (with calibrated fine adjust). Position Range: ±5 divisions. DC Gain Accuracy: ±2%. Vertical Resolution: 8-Bits (256 levels over 10.24 vertical divisions). Acquisition Peak Detect: High frequency and random glitch capture; Captures glitches as narrow as 10 ns using acquisition hardware at all time/div settings between 25 us/div and 5 s/div (inclusive). Time/Division Range: 1 ns to 5 s/div. Record Length: 1000 sample points per channel. Horizontal Accuracy: ± 0.01 %. Roll Mode: 0.1 s/div and slower when Auto Trigger Mode is selected. Trigger Types: Edge, Video. Trigger Modes: Auto, Normal. Trigger Inputs: CH1 , CH2, Line, External. Video; Type Trigger Formats and Field Rates: Triggers on Field 1, Field 2, Any Field (noninterlaced systems) , or Lines; from Sync-negative composite video. Triggers on
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