A low voltage single-ended probe is typically used for measuring high-speed, ground referenced signals up to 12 V. These low voltage probes are the best choice for making measurements on high impedance, high frequency circuit elements which require minimal probe loading. Users should select probes with a low input capacitance specification (~1 pF) to minimize the probe’s loading effect on the circuit. A probe with lower input capacitance will offer higher input impedance at higher frequencies.
Selecting the right probe for your application is key to attaining the best signal fidelity in your measurements. Active probes provide truer signal reproduction and fidelity for high-frequency measurements. The small profile and low-mass head make probing dense circuitry by hand fast and easy.
The TAP2500, TAP3500 and TAP4000 Single-ended Active FET probes provide excellent high-speed electrical and mechanical performance required for today's digital system designs.
| Key Features |
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| Outstanding Electrical Performance | High probe bandwidth
Fast probe rise time
Excellent signal fidelity
≤0.8 pF input capacitance
40 kΩ input resistance
-4 V to +4 V input dynamic range
-10 V to +10 VDC input offset range
±30 V (DC + peak AC) Maximum input voltage (nondestructive)
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| Versatile Mechanical Performance | Small compact probe head for probing small geometry circuit elements
DUT attachment accessories enable connection to SMDs as small as 0.5 mm pitch
Robust design for reliability
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| Easy to Use | Connects directly to oscilloscopes with the TekVPI™ probe interface
Provides automatic units scaling and readout on the oscilloscope display
Easy access to oscilloscope probe menu display for probe status/diagnostic information and to control probe DC offset
Remote GPIB/USB probe control through the oscilloscope
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| Applications | Verification, debug, and characterization of high-speed designs
Signal integrity, jitter, and timing analysis
Manufacturing engineering and test
Signals with voltage swings up to 8 Vp-p
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| Specifications |
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TAP2500, TAP3500 and TAP4000
Active Probes
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| Feature | Parameter |
| Attenuation (probe only) | 10X |
| Bandwidth (probe only) | TAP2500: ≥2.5 GHz
TAP3500: ≥3.5 GHz
TAP4000: ≥4 GHz
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| Rise Time (probe only) | TAP4000: ≤115 ps |
| Input Capacitance | ≤0.8 pF |
| Input Resistance | 40 kΩ |
| Input Dynamic Range | ±4.0 V |
| Input Offset Range | ±10 V |
| Maximum Non-Destructive Input Voltage | ±30 V (DC + peak AC) |
| Propagation Delay | 5.3 ns |
| Probe Head Size | Height: 7.6 mm (0.30 in)
Width: 7.6 mm (0.30 in)
Length: 57.2 mm (2.25 in)
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| Cable Length | 1300 mm (51 in) |
| Weight | Unit: 1.55 kg (3.44 lbs) (probes, accessories, and packaging)
Net: 0.091 kg (0.2 lbs) (probe only, using ME lab scale)
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| Specifications |
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TAP2500, TAP3500 and TAP4000
Active Probes
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| Model Overview |
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| Model | Description |
| TAP2500 | 2.5 GHz Active Probe |
| TAP3500 | 3.5 GHz Active Probe |
| TAP4000 | 4 GHz Active Probe |
| Specifications |
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| Low Voltage Single Ended Probes |
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| Model Overview |
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| Model | Attenuation | Bandwidth | Input Impedance | Maximum Voltage |
| P6243 | 10X | 1 GHz | 1 MΩ || ≤ 1 pF | ± 8 V |
| TAP1500 | 10X | 1.5 GHz | 1 MΩ || ≤ 1 pF | ± 8 V |
| P6245 | 10X | 1.5 GHz | 1 MΩ || ≤ 1 pF | ± 8 V |
| TAP2500 | 10X | 2.5 GHz | 40 kΩ || ≤ 0.8 pF | ± 4 V |
| TAP3500 | 10X | 3.5 GHz | 40 kΩ || ≤ 0.8 pF | ± 4 V |
| TAP4000 | 10X | 4 GHz | 40 kΩ || ≤ 0.8 pF | ± 4 V |
| P7240 | 5X | 4 GHz | 20 kΩ || ≤ 0.8 pF | ± 2 V |
