SLPU009 February   2022 JFE150

 

  1.   Trademarks
  2. 1Overview
    1. 1.1 JFE150
    2. 1.2 JFE150EVM
    3. 1.3 Related Documentation
    4. 1.4 Evaluation Module Limitations and Cautions
    5. 1.5 Electrostatic Discharge Caution
  3. 2Getting Started
    1. 2.1 Power Supplies
    2. 2.2 Input
    3. 2.3 Vbias
    4. 2.4 Output
    5. 2.5 Capacitors
  4. 3Application Circuit
    1. 3.1 JFE150 Ultra-Low-Noise Pre-Amp
  5. 4Schematic, PCB Layout, and Bill of Materials
    1. 4.1 JFE150EVM Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials

3.1 JFE150 Ultra-Low-Noise Pre-Amp

The default configuration of the JFE150EVM is shown in Figure 4-1. The JFE150EVM is configured to operate on a single supply of VDD = 12 V and VSS = GND. The output voltage, Vout, settles to approximately midsupply or 6 V, as shown in Figure 3-1. A theoretical explanation of the preamplifier with a JFE150 front end in a closed-loop circuit is detailed in the JFE150 Ultra-Low-Noise- Pre-Amp application report.

Figure 3-1 Pre-Amp With JFE150 Front End in a Closed-Loop Circuit
Figure 3-2 Gain vs Frequency