The Keysight 1169B is a high-frequency differential probe amplifier for the InfiniiMax II series, delivering 12 GHz specified bandwidth with 13 GHz typical performance. Built for signal integrity analysis on complex PCBs, it combines low noise with minimal measurement loading to preserve signal fidelity in demanding test environments. The 1169B is the RoHS-compliant variant of the 1169A, maintaining identical electrical and mechanical form, fit, and function.
– Technical Specifications
Bandwidth
• Specified: 12 GHz
• Typical: 13 GHz
Voltage Range
• Dynamic Range: 3.3 V peak-to-peak
• DC Offset Range: ±16 V
• Maximum Input Voltage: ±30 V
Input Impedance
• Differential Input Resistance: 50 kΩ
• Differential Input Capacitance: 0.21 pF
• Single-Ended Input Resistance: 25 kΩ
• Single-Ended Input Capacitance: 0.35 pF
Attenuation Ratio: 3.4:1
– Key Features
• Low input capacitance minimizes circuit loading and preserves signal integrity on high-speed nets
• High differential input impedance reduces measurement impact on PCB layouts
• Wide ±30 V maximum input rating with ±16 V DC offset capability accommodates various signaling standards
• Compatible with probe heads rated 12 GHz through 25 GHz for flexible measurement configurations
– Typical Applications
Signal integrity characterization on multi-gigahertz digital and mixed-signal circuits; differential pair analysis; power delivery network debugging; high-speed serial link validation.
– Compatibility & Integration
The 1169B connects directly to Keysight Infiniium oscilloscopes including MXR, EXR, S-Series, 90000A, and UXR platforms. Integration with 90000X, Q, V, and Z-series instruments requires the N5442A adapter; UXR configurations may require additional N2852A adapters depending on connector type (3.5 mm, 1 mm, or 1.85 mm). Operates with recommended probe heads including the MX0100A (25 GHz), MX0106A (23 GHz), MX0105A (20 GHz), N2839A (21 GHz), N5425B (18 GHz), and multiple 12 GHz variants.
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