SBOU227A September   2019  – November 2023 ALM2402F-Q1

 

  1.   1
  2.   ALM2402F-Q1 Evaluation Module
  3.   Trademarks
  4. 1Introduction
  5. 2EVM Circuit Description
  6. 3Jumper Settings
  7. 4Power-Supply Connections
  8. 5Input and Output Connections
  9. 6Modifications
  10. 7Schematic, PCB Layout, and Bill of Materials
    1. 7.1 Schematic
    2. 7.2 PCB Layout
    3. 7.3 Bill of Materials
  11. 8Revision History

4 Power-Supply Connections

The power-supply connections for the ALM2402FQ1EVM are provided through connector J7 at the top of the EVM. Table 4-1 summarizes the pin definition for supply connector J7, and the allowed voltage range for each supply connection.

Table 4-1 ALM2402FQ1EVM Supply-Range Specifications
Pin Number Supply Connection Voltage Range
J7.1 Input stage supply (VCC) 4.5 V to 16 V
J7.2, J7.4, J7.6 Ground 0 V
J7.3 Op amp 1 output supply (VCC_1) 3 V to 16 V
J7.5 Op amp 2 output supply (VCC_2) 3 V to 16 V

By default, the ALM2402FQ1 is configured to use a single supply connected through J7.1 (VCC) and J7.2 (GND) with jumpers J8 and J10 set to shunt pins 1-2. Alternatively, the EVM can be configured to use three independent power-supply connections: input stage supply (VCC), op amp 1 output supply (VCC_1), and op amp 2 output supply (VCC_2). Setting jumpers J8 and J10 to shunt pins 2-3 allows the use of independent voltage supplies as indicated in Figure 4-1.

GUID-B120133B-7648-4340-BF1A-CA4415BED2FE-low.gifFigure 4-1 ALM2402FQ1EVM Configured With Independent Input-Stage and Output-Stage Supplies