Siglent SAP1000 1 GHz Active probe for SDS5000X / SDS6000A Series
Siglent SAP1000 1 GHz active probe for use with the SIGLENT SDS5000X / SDS6000A series of oscilloscopes
A 1.2 pF input, so the probe stops being part of the circuit
The SAP1000 is a single-ended active probe: 1 GHz of bandwidth into an input of 1 MΩ in parallel with 1.2 pF, powered and configured by the oscilloscope over SAPBus.
That capacitance figure is the whole reason active probes exist. A general-purpose passive probe presents something like 10–16 pF at the tip, and at any real frequency that capacitance is a load your circuit has to drive. It rounds edges, damps ringing and shifts resonances — so the waveform you are looking at is partly the probe's doing. At 1.2 pF the SAP1000 takes roughly a tenth of that out of the circuit, and what you see on screen is much closer to what the node was actually doing before you touched it.
At a glance
- TypeSingle-ended active
- Bandwidth1 GHz
- InterfaceSAPBus
- Cable length130 cm
- Max input20 V non-destructive
Order code SAP1000 · supplied by SIGLENT
What it is for
Fast edges and clock signals
At 1 GHz the probe resolves rise times a passive probe rounds off. This is the everyday case: an edge that looked soft through a 10 pF tip turns out to be considerably faster.
Probing a live circuit without changing it
1.2 pF of loading rather than 10–16 pF, so oscillators keep oscillating at the right frequency and marginal timing stays marginal instead of appearing to pass.
No power supply, no manual setup
SAPBus carries power and identity. The scope names the probe, applies its attenuation and offers the offset control — nothing to configure and nothing extra to plug in.
Specifications
| Parameter | Value |
|---|---|
| Bandwidth | 1 GHz |
| Input impedance | 1 MΩ |
| Input capacitance | 1.2 pF |
| Input dynamic range | ±8 V |
| Offset range | ±12 V |
| Non-destructive input voltage | 20 V |
| Interface | SAPBus |
| Cable length | 130 cm |
From the SIGLENT Probe Data Sheet, revision EN01D.
Before you order
- ±8 V is the signal window. The input dynamic range is ±8 V, so this is a probe for logic, clocks and small-signal work — not for a 24 V rail. The ±12 V offset range lets you centre that window on a DC level, but it does not widen it.
- 20 V is a hard ceiling. Twenty volts is the non-destructive limit, not a rating you can work at. If the node might swing beyond it, use a passive or differential probe instead.
SAPBus — the oscilloscope does the setup
This probe connects through SAPBus, which carries power, identity and control down the same connector as the signal. The oscilloscope recognises the probe by name, applies its attenuation automatically and puts its offset control on screen. There is no external power supply to find and nothing to set by hand.
SAPBus inputs are found on the SDS7000A, SDS6000A, SDS6000L, SDS5000X and SDS3000X HD families. It will not work on an oscilloscope with plain BNC inputs.
Not sure whether your oscilloscope has SAPBus? Ask us with the model number and we will confirm before you order.
Tips and accessories
Tips are consumables on an active probe — they are the part that wears, bends and eventually breaks.
Other active probes
The full range, with the system-bandwidth figures and every accessory, is on the active probes page.
Tell us your oscilloscope and we will give you the real bandwidth
Probe bandwidth and the bandwidth you actually get are different numbers, and the difference depends on the oscilloscope. Send us the model and the signal you are chasing and we will tell you what this probe will genuinely deliver — before you buy it.
More information
Specifications are taken from the manufacturer’s official datasheet (SIGLENT Probe Data Sheet EN01D) and are provided for guidance only. They are subject to change without notice, and errors and omissions may occur. The manufacturer’s current datasheet is the definitive reference. Prices exclude VAT.