OMICRON-Lab
OMICRON Lab B-AMP 12 External Power Amplifier - 12dB Gain 50MHz
OMICRON Lab B-AMP 12 External Power Amplifier - 12dB Gain 50MHz
SKU: P0005772
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Key Features
Overview
The B-AMP 12 external power amplifier extends the measurement capabilities of the Bode 100 vector network analyser by providing 12 dB of clean amplification from DC to 50 MHz. Designed for professional test environments, this amplifier enables high-power stability measurements, low-impedance characterisation, and enhanced signal-to-noise ratios in challenging measurement scenarios.
The amplifier's flat frequency response and exceptional return loss characteristics make it ideal for precision impedance measurements on switching power supplies, EMC filters, and passive components. The dedicated impedance measurement ports eliminate the need for external couplers, streamlining measurement setups whilst maintaining accuracy.
Essential for power electronics engineers requiring stable loop gain measurements, EMC compliance testing, and component characterisation at elevated signal levels. The amplifier's wide supply voltage range (10-36 VDC) and compact form factor make it suitable for both laboratory and field applications.
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Why Engineers Choose the OMICRON Lab B-AMP 12 External Power Amplifier - 12dB Gain 50MHz
SNR Under Noise
DC–50 MHz Coverage
Integrated Pickup
Professional External Power Amplifier for Vector Network Analysis
The OMICRON Lab B-AMP 12 is a precision external power amplifier designed specifically for use with the Bode 100 vector network analyser. This professional-grade amplifier delivers a consistent 12 dB gain (×4 amplification) across the entire DC to 50 MHz frequency range, enabling high-power measurements up to 25 dBm output level.
High-Performance 50Ω System Design
Built around a true 50Ω input and output impedance design, the B-AMP 12 provides excellent return loss performance (>30 dB) ensuring minimal signal reflections and accurate measurements. The amplifier features dedicated impedance measurement ports (CH1 and CH2) that provide defined attenuation levels for direct impedance measurements at high signal levels.
| Frequency Range | DC – 50 MHz |
| Gain | 12 dB ±0.25 dB |
| Maximum Output | 25 dBm (11.3 VPP) into 50Ω |
| Input/Output Impedance | 50Ω nominal |
| Supply Voltage | 10-36 VDC |
Wiring Quick-Start
Connect the B-AMP 12 between your Bode 100 output and device under test:
Bode 100 OUTPUT → B-AMP 12 INPUT (BNC) B-AMP 12 OUTPUT → Device Under Test B-AMP 12 CH1 ← Bode 100 CH1 (for impedance measurements) B-AMP 12 CH2 ← Bode 100 CH2 (for impedance measurements) Power: 10-36 VDC via 2.5mm/5.5mm coaxial socket Advanced Measurement Capabilities
The integrated CH1 and CH2 measurement ports provide calibrated signal paths for impedance analysis:
| Input to CH1 attenuation | 14.5 dB typ. |
| Input to CH2 attenuation | 20.8 dB typ. |
| Output to CH2 voltage gain | -33 dB (×0.022) |
| CH1/CH2 return loss | >25 dB |
These measurement ports enable direct impedance measurements with high AC signal levels, essential for characterising voltage-dependent components like chip capacitors and varactors.
Related products: OMICRON Lab Bode 100 VNA and B-LCM Common Mode Choke.
Questions and Answers
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What Protections or Limits Apply?
The B-AMP 12 limits are:
- Input: ≤1 VRMS
- Output: up to 25 dBm
- Reverse power damage: 1 W
Also observe the voltage limits of your DUT and instrument.
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Does Software Auto‑detect B‑AMP 12?
No. The B-AMP 12 has no data connection to the instrument, so levels follow the Bode 100 source settings (13 dBm in gives ~25 dBm out).
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Which Impedance Methods Benefit Most?
Low-Z methods such as 2-port shunt-thru benefit most, as the higher drive overcomes noise and cabling losses.
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Can It Aid Loop Gain Measurements?
Yes. More injection power improves loop gain analysis in power converters and op-amp systems, provided you use proper injection points.
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What Are the Mechanical and Power Specs?
B-AMP 12 specifications:
- Dimensions: 138 × 75 × 32 mm
- Weight: ~0.21 kg
- Supply: 10 to 36 VDC
- Connectors: BNC
- Input and output impedance: 50 Ω
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What Does B-AMP 12 Do with Bode 100?
B-AMP 12 adds 12 dB gain from DC to 50 MHz, so the Bode 100 can drive up to 25 dBm for S21 and impedance measurements.
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When Should B-AMP 12 Be Used?
Use it when measuring very low impedances or voltage-dependent components, or in noisy environments where you need a higher SNR.
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Do the CH1/CH2 Ports Simplify Impedance Measurement?
Yes, they provide defined attenuations and return loss for direct pickup and impedance workflows without external splitters.
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Does B-AMP 12 Improve Measurement Accuracy?
It improves SNR. Accuracy still depends on calibration, fixtures and method (for example, shunt-thru for low-Z).
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How Does It Compare to a High‑end RF Power Amplifier?
B-AMP 12 covers DC to 50 MHz and has CH1/CH2 ports tailored for measurements. Generic RF amplifiers often lack DC coupling and dedicated pickup ports.
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