HP 1144A 800 MHz Active Probe

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The HP 1144A active probe provides an excellent combination of high bandwidth, high input resistance, and low input capacitance. This combination is superior to that of passive divider probes because it provides minimal circuit loading at high and low frequencies. As signal speeds increase, passive divider probes may not deliver the performance needed. This can result in waveshapes that do not represent the actual signal.

To help you minimize circuit loading, the HP 1144A boasts 800-MHz bandwidth, 1-M ohm input resistance, and 2-pF input capacitance. It can be connected to any instrument with 50-Ohm inputs. An external 50-Ohm termination can also be used with high impedance inputs.

The HP 1144A can access power directly from the HP 54542, HP 54540, the HP 54522, the HP 54520, the HP 54615B, the HP 54616B and the HP 54616C oscilloscopes. The HP 54500 family scopes scopes provide power for two channels of active probing. If four channels are needed, a special one-input, two-output adapter is available (HP 01144-61604). Two adapters are needed for four channels of probing. The HP 54615B, the HP 54616B, and the HP 54616C provide power for one channel of active probing. If two channels are needed the HP 01144-61604 can be used. If the HP 1144A is used with any oscilloscope not listed above, then the HP 1142A power supply is required. The HP 01144-61604 adapter can be used with this power supply to provide power for two channels of active probing.

Versatile accessories allow for easy connection to your device under test. For example, the dual lead adapter combines with the two mini-pincher tips to provide a solid connection to .050" pitch surface mount devices for hands-off probing. Also, the ground bayonet has a short ground lead to minimize measurement errors such as ringing, caused by parasitic inductances.

For hands-off probing of SMT components with .5mm (.020") to .8mm (.032") pitch, an additional accessory is available: the HP 10075A .5mm MicroGrabber Accessory Kit.


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Bandwidth:1                          Greater than or equal to 800 MHz
RiseTime:1,2                          Less than or equal to 440 ps
Attenuation3:                        10:1 +/-2%
Input Resistance:                    1 Mohm +/-5%
Maximum Input Voltage:               +/-40V (dc +peak ac)
1Above 35°C, bandwidth and rise time degrade approximately 1/2%/°C.

2Rise time figure calculated from tr=0.35/Bandwidth.

3When connected to an instrument input of 50 Ohm, +/-0.5%.





Characteristics

Input Capacitance:                  2 pF (typical)
Overshoot and Ringing:1             +/-10% for the first 6 ns
                                    +/-4% from 6 ns to 20 ms
  +/-1.5% thereafter
Output Voltage offset:              Less than +/- 15 mV
Input Dynamic Range:2               +/-7.0V
Output Load Requirement:            50 ohm
Power Requirements:                 dc +/-12V to +/-15V
                                    +/-5% (at approximately 75 mA each supply)
Weight:                             Net:         Approximately 180g(-6.5oz)
                                                 Probe body 35g(~1.25 oz)
                                    Shipping:    Approximately 0.8kg (1.75 lb)
1When used with a 3-GHz oscilloscope (oscilloscope characteristics excluded).
2When connected to an instrument input of 50 ohm, +/-0.5%.





Environmental Characteristics

Temperature:       Operating:
                   0°C to +55°C (32°F to +131°F)
                   Non-Operating:
                   -40°C to +70°C (-40°F to+158°F)
Humidity:          Operating:
                   up to 95% relative humidity
                   (non-condensing) at +40°C (+104°F)
                   Non-Operating:
                   up to 90% relative humidity at +65°C (+149°F)
Altitude:          Operating:
                   up to 4,600 meters (15,000ft)
                   Non-Operating:
                   up to 15,300 meters (50,000ft)     
Vibration:         Random vibration 5 to 500 Hz, 
                   10 minutes per axis, 0.3 grms
                   Random vibration 5 to 500 Hz, 
                   10 minutes per axis, 2.41 grms
                   Resonant search 5 to 500 Hz 
                   Swept sine, 1 octave/minute
                   Sweep rate, (0.75g), 5 minute
                   Resonant dwell at 4 resonances per axis


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HP 1144A            800 MHz Active Probe


HP 10072A           SMT Accessory Kit for HP 10070 Family Probes


HP 10075A           0.5 mm MicroGrabber Accessory Kit


HP 01144-61604      One-input, Two-output Adapter


HP 1142A            Probe Control and Power Module
All orders include the following:

Available accessories for this product include:


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