The Agilent/Keysight 1145A is a two-channel active probe delivering 750 MHz bandwidth for precision signal capture on surface-mount devices and densely populated circuit boards. Its small-geometry tip minimizes loading while maintaining signal integrity across high-speed digital and analog signals. Active circuitry resides in a pod positioned 13 inches from the tip, yielding a lightweight probe head suited for detailed work in confined spaces. The standard 25-mil square pin socket accommodates industry-standard IC package adapters, with versatile SMD accessories supporting 5-mil JEDEC, 0.5-mm EIAJ, and 0.65-mm EIAJ packages.
Technical Specifications
• Bandwidth: ≥750 MHz
• Rise Time: ≤470 ps
• Attenuation: 10:1 ±3%
• Input Resistance: 1 MΩ ±2%
• Input Capacitance: 2 pF (typical)
• Maximum Input Voltage: ±40 V (dc + peak ac)
• Input Dynamic Range: 0 to ±6.0 V
• Output Impedance: 50 Ω
• Output Voltage Offset Error: <±1 mV
• Overshoot and Ringing: <±10% for first 6 ns; ±4% from 6 ns to 20 µs; ±1.5% thereafter
• Power Requirements: ±6 V dc ±3% (≈150 mA per supply)
• Weight: Approximately 8 oz
– Key Features
• Remote active circuitry eliminates probe-head mass and parasitic effects
• Extendable output cable via 50 Ω coaxial connector
• Passive-only tip design for durability and minimal signal loading
• Operating temperature range: 0 °C to +55 °C
• Non-operating temperature range: -40 °C to +70 °C
• Operating humidity: Up to 95% RH (non-condensing) at +40 °C
– Typical Applications
• High-speed digital signal measurement on SMD layouts
• Analog signal analysis in mixed-signal designs
• Backplane and PC board probing in production test and troubleshooting
– Compatibility & Integration
Powered by Agilent/Keysight 54520 and 54540 series oscilloscope probe outputs or the 1142A power supply. Supplied accessories include probing pins, SMT grabbers, ground lead pins, ground extenders, and SMT leads.
