| 摘要 |
A reference voltage support circuit that interfaces with a variety of reference voltage circuit types including bandgap references, zener references, and reference amplifiers with only the interconnection details being different. The reference voltage support circuit contains a voltage source to produce a stabilized supply current for the reference voltage circuit and a unity gain voltage inverter to produce both positive and negative reference voltages from a unipolar reference voltage circuit. The current source and the unity gain voltage inverter both employ ratiometrically scaled resistor networks coupled to the negative and positive reference voltages for high stability over time and temperature.
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