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Differential Probes
P6248·P6247·P6246 Datasheet
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The P6248, P6247, and P6246 Differential Probes enable users to make time-domain or frequency-domain measurements on high-bandwidth signals commonly found in disk drive, digital IC design (RAMBUS), and communication applications (Gigabit Ethernet, IEEE-1394 Firewire, and Fibre Channel). The P6248 includes accessories that allow RAMBUS via probing and IEEE-1394 interconnect access. The small probe head geometry and assorted probe tip accessories allow these probes to easily accommodate manual probing of surface-mount devices while maintaining high CMRR.
P6248 key performance specifications
- ≥1.5 GHz bandwidth (guaranteed)
- 1.7 GHz (typical, ≤27 °C) 1X mode
- 1.85 GHz (typical, ≤27 °C) 10X mode
P6247 key performance specifications
- ≥1.0 GHz bandwidth (guaranteed)
P6246 key performance specifications
- ≥400 MHz bandwidth (guaranteed)
Key features
- Low input capacitance: <1 pF differential
- Probe input connector: two standard 0.025 in./0.63 mm (0.1 in. center) square pin receptacle (female)
- Electrostatic discharge tolerant (IEC 801-2)
- For use with oscilloscopes, spectrum analyzers, or network analyzers
- >60 dB (1000:1) Common Mode Rejection Ratio (CMRR)
- Small probe head allows easy probing of SMDs
Connectivity
- Connects to TekProbe® BNC interface on TDS Series oscilloscopes or other instruments using 1103 TekProbe® Power Supply
Applications
- Communications (Gigabit ethernet, IEEE-1394, fibre channel)
- Semiconductor characterization (RAMBUS)
- Disk drive read channel design
- Communication pulse shape compliance
- Jitter, crosstalk, and BERT measurements
- Location of ground bounce
P6248, P6247, and P6246 Differential Probes
The P6248, P6247, and P6246 Differential Probes are ideal for design verification of disk drive read, channel electronics, and timing analysis for troubleshooting ground-bounce problems associated with high-speed logic. They can also be used for pulse shape or crosstalk compliance testing of high-speed communication signals.
Specifications
All specifications are guaranteed unless noted otherwise. All specifications apply to all models unless noted otherwise.
Model overview
| Characteristic | P6248 | P6247 | P6246 |
|---|---|---|---|
| Bandwidth (guaranteed) | ≥1.5 GHz | ≥1.0 GHz | ≥400 MHz |
| Rise time (specified) | <265 ps | <350 ps | <875 ps |
| Attenuation settings | X1, X10 | X1, X10 | X1, X10 |
| DC attenuation accuracy | ±2% | ±2% | ±2% |
| Common mode input voltage range | ±7.0 V, 1X ±7.0 V, 10X | ±7.0 V, 1X ±7.0 V, 10X | ±7.0 V, 1X ±7.0 V, 10X |
| Differential mode input voltage range | ±850 mV, 1X ±8.5 V, 10X | ±850 mV, 1X ±8.5 V, 10X | ±850 mV, 1X ±8.5 V, 10X |
| Maximum nondestructive input voltage | ±25 V (DC + peak AC) | ±25 V (DC + peak AC) | ±25 V (DC + peak AC) |
| Electrostatic immunity | 15 kV | 15 kV | 15 kV |
| Bandwidth limit | - | Switchable, 200 MHz | Switchable, 200 MHz |
| Lower frequency limit, DC reject mode | - | 0.4 Hz, 1X 4.0 Hz, 10X | 0.4 Hz, 1X 4.0 Hz, 10X |
| Probe interface | TekProbe® Level II 1 | TekProbe® Level II1 | TekProbe® Level II1 |
Warranted characteristics
- CMRR
Frequency Attenuation setting P6246 P6247 P6248 1 MHz ÷1 >60 dB >60 dB >60 dB ÷10 >45 dB >45 dB >45 dB 100 MHz ÷1 >38 dB >38 dB >38 dB ÷10 >25 dB >25 dB >25 dB 500 MHz ÷1 N/A >35 dB >35 dB ÷10 N/A >20 dB >20 dB 1 GHz ÷1 N/A >30 dB >30 dB ÷10 N/A >18 dB >18 dB 1.5 GHz ÷1 N/A N/A >25 dB (typical) ÷10 N/A N/A >18 dB (typical) 
Typical characteristics
- Input capacitance
- Differential mode
- <1 pF
- Common mode
- <2 pF
- Input resistance
- Differential mode
- 200 kΩ
- Common mode
- 100 kΩ
- Linearity
- ±2%
- Noise
- <50 nV/squareroot Hz
- Harmonic distortion
- ≤1.5%
- Passband ripple
- < ±0.25 dB
- P6248
- DC to 1.5 GHz
- P6247
- DC to 850 MHz
- P6246
- DC to 400 MHz
- Output termination
- Terminate into 50 Ω
Physical characteristics
- Weight (probe only)
- 160 g (0.36 lb.)
- Probe head dimensions (H×W×D)
- 9.3 mm × 12 mm × 78 mm (0.36 in. × 0.47 in. × 3.0 in.)
- Input connection dimensions
- 0.63 mm (0.025 in.) square pins on 2.54 mm (0.1 in.) centers
- Cable length
- 1.2 m (47 in.)
Environmental characteristics
- Temperature
- Operating
- 0 °C to +50 °C
- Nonoperating
- –55 °C to +75 °C
- Humidity
- (0 to 90% RH)
- Operating
- +30 °C to +50 °C
- Nonoperating
- +30 °C to +60 °C
Ordering information
Models
- P6248
- 1.5 GHz Differential Probe
- P6247
- 1.0 GHz Differential Probe
- P6246
- 400 MHz Differential Probe
P6248 standard accessories
| Accessory | Quantity | Reorder part number 2 | |
|---|---|---|---|
| Certificate of traceable calibration | 1 | - | |
| Carrying case | 1 | 016-1952-XX | |
| User manual (English) | 1 | 071-0566-XX | |
| Service manual | 1 | 071-0573-XX | |
| Tektronix probes care and handling reference | 1 | 071-2870-XX | |
| Probe Tip Accessory kit | 1 | 020-2702-XX | |
| Accessory box | 1 | 006-7164-XX | |
| Color coding bands, 2 each of 5 colors | 1 | 016-1315-XX | |
| Probe tip connector saver | 2 | 016-1781-XX (set of 2) | |
| Straight tip | 8 | 016-1891-XX (set of 8) | |
| Y-lead adapter | 2 | 196-3434-XX | |
| 3 in. ground lead | 2 | 196-3437-XX | |
| 1 in. solder down | 1 | 196-3504-XX | |
| 3 in. solder down | 1 | 196-3505-XX | |
| TwinTipTM adapter | 2 | 206-0490-XX | |
| Micro CKT test tip | 3 | 206-0569-XX | |
P6247 / P6246 standard accessories
| Accessory | Quantity | Reorder part number1 | ||
|---|---|---|---|---|
| Certificate of traceable calibration | 1 | - | ||
| Carrying case | 1 | 016-1952-XX | ||
| User manual (English, German, French, Japanese) | 1 | 070-9898-XX | ||
| Service manual | 1 | 070-9899-XX | ||
| Tektronix probes care and handling reference | 1 | 071-2870-XX | ||
| BNC to probe tip adapter | 1 | 679-4094-XX | ||
| Accessory kit | 1 | 020-2380-XX | ||
| Accessory box | 1 | 006-7164-XX | ||
| Color coding bands, 2 each of 5 colors | 1 | 016-1315-XX | ||
| Short ground contact (131-6247-XX) | 2 | 016-1983-XX (set of 10) | ||
| Spring loaded ground (131-6271-XX) | 2 | 016-1782-XX (set of 6) | ||
| Lead set | 1 | 196-3435-XX | ||
| TwinFootTM adapter (013-0306-XX) | 2 | 016-1785-XX (set of 4) | ||
| TwinTipTM adapter (013-0305-XX) | 1 | 016-1786-XX (set of 4) | ||
| Y-lead adapter | 1 | 196-3434-XX | ||
| 6 in. ground lead | 1 | 196-3436-XX | ||
| Micro CKT test tip | 3 | 206-0569-XX | ||
Optional accessories
| Accessory | Part number | P6248 | P6247 / P6246 |
|---|---|---|---|
| Longhorn Via adapter | 016-1780-XX (set of 5) | ■ | |
| Spring loaded ground | 016-1782-XX (set of 6) | ■ | |
| Short ground contact | 016-1783-XX (set of 10) | ■ | |
| TwinFootTM adapter | 016-1785-XX (set of 4) | ■ | |
| TwinTipTM adapter | 016-1786-XX (set of 4) | ■ | |
| VariTipTM adapter | 016-1890-XX (set of 8) | ■ | |
| Micro Klipclip adapter | 013-0309-XX (set of 2) | ■ | ■ |
| Adjustment tool | 003-0675-XX | ■ | |
| Probe tip to BNC adapter | 679-4094-XX | ■ | |
| P6046/HP1141A probe tip adapter | 013-0304-XX | ■ | ■ |
| IEEE 1394 adapter | 679-5027-XX | ■ | ■ |
| TPA-BNC (connect the probe to TekVPI oscilloscopes) | TPA-BNC | ■ | ■ |
| TCA-BNC (connect the probe to TekConnect oscilloscopes) | TCA-BNC | ■ | ■ |
| 50 Ω termination | 011-0049-XX | ■ | ■ |
| 50 Ω BNC cable, 20 in. | 012-0076-XX | ■ | ■ |
| 50 Ω SMA (F) to BNC (M) adapter | 015-0572-XX | ■ | ■ |
| TekProbe® II Power Supply for interfacing with other BNC instruments; Power plug options for 1103: | 1103 | ■ | ■ |
| North America (115 V, 60 Hz) | Opt. A0 | - | - |
| Universal Euro (220 V, 50 Hz) | Opt. A1 | - | - |
| United Kingdom (240 V, 50 Hz) | Opt. A2 | - | - |
| Australia (240 V, 50 Hz) | Opt. A3 | - | - |
| Switzerland (220 V, 50 Hz) | Opt. A5 | - | - |
| Japan (100 V, 110/120 V, 60 Hz) | Opt. A6 | - | - |
| China (50 Hz) | Opt. A10 | - | - |
| India (50 Hz) | Opt. A11 | - | - |
| Brazil (60 Hz) | Opt. A12 | - | - |
| No power cord (instrument set to 230 V) | Opt. A99 | - | - |
Service options
- Opt. C3
- Calibration Service 3 Years
- Opt. C5
- Calibration Service 5 Years
- Opt. D3
- Calibration Data Report 3 Years (with Opt. C3)
- Opt. D5
- Calibration Data Report 5 Years (with Opt. C5)
- Opt. R3
- Repair Service 3 Years (including warranty)
- Opt. R5
- Repair Service 5 Years (including warranty)
- Opt. SILV600
- Standard warranty extended to 5 years
- Opt. SILV900
- Standard warranty extended to 5 years
1 The TekProbe® Level II interface supports probe power, auto scaling, auto termination with TDS oscilloscopes.
2 Reorder quantities may differ from the original included quantities.
CE Marking Not Applicable. Tektronix is registered to ISO 9001 and ISO 14001 by SRI Quality System Registrar. 60W-13148-12
