Cal Test Electronics CT3688A

Active Differential Probe Kit 200MHz, 10x Small Signal +/-20V

Order #: CT3688A

Mfg #: CT3688A

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$1,018.65

Cal Test Electronics CT3688A

Active Differential Probe Kit 200MHz, 10x Small Signal +/-20V

Order #: CT3688A

Mfg #: CT3688A

$1,018.65
Availability: Item ships in about Ships in 2-3 weeks
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Product Highlights

Differential probes allow safe, accurate measurement between two voltage points where neither point is referenced to ground. The CT3688A off ers a 200 MHz bandwidth and can test up to ±60 V (DC + AC peak). Compatible with oscilloscopes from all major manufacturers, the probe can be battery operated or powered directly from an oscilloscope using the included USB cable.

  • Meets IEC 61010-031 safety standard
  • Small compact size
  • Up to ±20 V differential
  • High accuracy ±1%
  • 200 MHz bandwidth (-3dB)
  • Excellent CMRR
  • Kit comes in foam-lined plastic case and contains:
    • Differential probe
    • (2) Sprung hook probes, 1000 V, CAT III, 20 A (black & red)
    • (2) Alligator clips, 300 V, CAT II (black & red)
    • 9 V Battery
    • USB Power Cable

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Electrical Specifications
  CT3688A
Bandwidth (-3dB) 200 MHz
Rise Time (10%-90%) 1.75 ns
Attenuation Ratio 10x
Accuracy ±1%
CMRR (typical) -80 dB @ 100 Hz
-50 dB @ 10 MHz
Input Voltage:  
Maximum Differential Input Voltage (DC + AC peak) ±20 V
Maximum Common Mode Input Voltage (DC + AC peak) ±60 V
Absolute Maximum Rated Input Voltage (each side to ground) 40 Vrms CAT I
Input Impedance 500 kΩ // 7 pF (each side to ground)
Output Voltage:  
Swing ±2 V (driving 50 Ω oscilloscope input)
Offset (typical) ±2 mV
Noise (typical) 0.3 mVrms
Source Impedance (Typ.) 50 Ω
Operating Temperature/Humidity -10° to +40° C / 25% to 85% RH
Power Supply CT3723 power adapter (included) or
4 AA batteries (optional)
CT4122 USB power lead (optional)
Mechanical Characteristics
Weight 200 g
Dimensions 111 x 22 x 14 mm
BNC Cable Length 120 cm
Input Leads Length 15 cm each
Environmental Characteristics
Operating Temp/Humidity -10°C to 40°C / Up to 85% RH
Storage Temp/Humidity -30°C to 70°C / Up to 85% RH
Pollution Degree Pollution Degree 2
Altitude Operating: 3,000 m
Nonoperating: 15,300 m
Safety Specifications
IEC 61010-031