Agilent/Keysight 1132B

The Keysight 1132B is a 5 GHz active differential probe amplifier engineered for high-speed signal acquisition in embedded system design and validation. This InfiniiMax probe amplifier delivers superior signal fidelity through extremely low input capacitance and flat frequency response, minimizing loading effects on the device under test. The 1132B is the RoHS-compliant successor to the 1132A, maintaining equivalent form, fit, and function across the InfiniiMax 1130B-34B Series platform.

Technical Specifications

• Bandwidth: 5 GHz


• Attenuation Ratio: 10:1 / 5:1


• Dynamic Range: ±2.5 V


• Maximum Input Voltage: ±30 V peak (mains isolated circuits)


• DC Offset Range: ±12 V (with probe offset)


• Differential Input Impedance: 50 kΩ resistance, 0.27–0.34 pF capacitance


• Single-Ended Input Impedance: 25 kΩ resistance, 0.44–0.67 pF capacitance


• Weight: 0.46 kg


• Interface: AutoProbe


• Compliance: RoHS compliant

Key Features

• Patented resistor probe tip technology for minimal DUT loading


• Dual attenuation modes (10:1 and 5:1) for signal optimization across measurement ranges


• ±12 V DC offset capability enables AC signal isolation and baseline shifting


• ±30 V peak overload rating on mains-isolated circuits ensures protection during transient events


• Extremely low input capacitance (0.27–0.34 pF differential) preserves signal integrity on high-impedance nodes

Typical Applications High-speed digital debug and characterization in microcontroller and FPGA designs, differential signal measurements in SerDes and low-voltage signaling circuits, embedded system validation where probe loading must be minimized.

Compatibility & Integration The 1132B integrates with Infiniium 4 GHz oscilloscopes and a broad range of Infiniium and InfiniiVision series platforms, including 3000X, 4000X, 5000A, 6000A, 7000A, S-series, 90000A, and legacy 8000A instruments. Adapter support includes N5442A (90000 V/X/Z/Q series) and N1022B (86100D). A comprehensive accessory ecosystem provides mechanical flexibility through probe heads, differential and single-ended connectivity kits, browser assemblies, positioners, and solderable tip sets (E2677A, E2677B, E2678A, MX0100A, MX0103A).