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The HD3 Series is “built from the ground up with a custom asic deep memory architecture”, said the company, while also saying that it is “leveraging custom hardware technology from the UXR Series”.
There are two channel and four channel versions, both with 16 digital channels for mixed signal work.
Base models have 200MHz bandwidth (2ns rise), and then there are upgrades to 350 (1.3ns), 500 (900ps), and 1,000MHz (450ps).
Standard memory is 20Mpoint/channel, upgradeable to 50 or 100Mpoint/channel.
“Part of this new architecture also includes deep memory with dedicated memory chips for every channel,” said Keysight. “This means there is no interleaving between channels. You can have all four channels turned on and still get the maximum memory and sample rate on every channel.”
Maximum sample rate is 3.2Gsample/s/channel, and update rate is >1.3Mwaveform/s.
Inputs can be switched between 1MΩ (500μV to 10V /div) and 50Ω (500μV to 1V/div), and 16bit resolution can be calculated if bandwidth can be sacrificed.
To go with the high resolution is a low noise floor: 50µVrms (200MHz BW, 500μV/divl, 1MΩ input).
Effective number of bits at 200MHz bandwidth 8.9 (100mV/div, 1MΩ input, 10MHz near-full screen sinewave).
The user-interfaces is built around a 10.1in gesture-enabled capacitive touch display, and automatic fault hunter software can be enabled to analyse glitches, slow edges and runts.
Hardware-backed zone triggering is implemented, and pay-for serial trigger options include I2C, SPI, RS-232/422/485/UART, CAN (FD, XL) and LIN.
Many of the options, including input bandwidth choice, are via over-the-Web software licensing.
Electronics Weekly has asked which parts are brand new for this scope series and what has been brought over from the UXR series – watch this space.
This document provides a good overview of the 14bit HD3 scopes
