ASIC boost for 12bit oscilloscopes

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By Nick Flaherty

Rigol Technologies has developed a new custom chip for two series of 12bit oscilloscopes

The Centaurus ASIC chipset, designed in-house by Rigol, provides the HDO1000 series with a sampling rate of 2GSa/s with 12bit vertical resolution. The scope has options of two or four channels with  bandwidths of 70, 100 and 200 MHz.

The maximum memory depth is 100 Mpts. In addition, the HDO4000 series is designed for the 200, 400 and 800 MHz bandwidths with a higher sampling rate of up to 4 GSa/s, contains four analog channels and offers a memory depth of up to 500 Mpts. The minimum vertical adjustment is 100 µV/DIV for the HDO4000 series and 500 µV/DIV for the HDO1000 series. Two different impedances (1 MΩ, 50 Ω) can be set for the HDO4000 series.

RIGOL has integrated a new form of analysis called UltraAcquire into both series, with a trigger rate of 1.5 Gwaveform/s. This makes it easy to measure very fast or sporadic and short events.

All the scopes have a 10.1 inch HD colour capacitive touchscreen (1024*800) with 256 intensity levels and colour tones for precise and clear signal display. In order to ensure maximum flexibility, the HDO4000 series allows the integration of a standard 18650 battery in order to carry out measurements without mains connection.

Various trigger, math and display options with extended FFT of 1 million points, mask test and power analysis, an integrated signal search function are available as well as all the usual serial bus protocol analysis and trigger functions. The integrated voltmeter and a frequency counter round off the complete range of measurements. Various interfaces such as USB3.0-Host, USB3.0-Device, HDMI, LAN (10/100/1000 Base-T) and AUX OUT are also available.

Accessories include active and passive probes, high-voltage probes (differential/single-ended), different current clamps (up to 500 amps), 19-inch installation frame, software drivers for known packages and high-level languages as well as a modern and fast web remote control via LAN is also available.

The scopes can be extended through software updates to provide higher bandwidths or memory expansion via software upgrade. Serial triggering and decoding (SPI, I2C, RS232/UART, CAN und LIN) are standard implemented in the scope.

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