
Applying buried-zener references
A Review of Some Outstanding Monolithic Voltage References and Their Applications
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Additional circuitry is needed to take advantage of the LTZ1000’s superior character-
istics, but the circuit’s
layout
is critical to its performance. The circuit should use a sin-
gle-point ground connection, with the load connected via a separate return cable
directly to ground. The circuit’s PC board should use the same size of pads and track
lengths, and with the temperature of the LTZ1000’s pins held at identical tempera-
tures, to eliminate thermocouple effects. Thermal EMFs, or thermocouples as they
are more commonly known, are ...