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Differential Probes

P6248·P6247·P6246 Datasheet

P6248·P6247·P6246 Datasheet

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 1TekProbe® Level II1TekProbe® 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)
P6248_P6247_P6246 EN US 60W 13148 12

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
P6248_P6247_P6246 EN US 60W 13148 12

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