TS6001
Generating Positive and Negative Low-Power
Voltage References
the TS6001. The CD4049-based circuit is a discrete
charge pump voltage doubler/inverter that generates
±6V supplies for any precision, micropower op amp
with VOS and TCVOS specifications consistent with
the TS6001’s initial accuracy and output voltage drift
performance.
The circuit in Figure 8 uses a CD4049 hex inverter
and a few external capacitors as the power supply to
a dual-supply precision op amp to form a ±2.5V
precision, bipolar output voltage reference around
Figure 8: Generating Positive and Negative 2.5V References from a Single +3V or +5V
Supply.
TS6001DS r1p0
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RTFDS