The TC1028 is a mixed-function device combining two
comparators and a voltage reference in a single 8-pin
package. The inverting input of Comparator A and the
non-inverting input of Comparator B are internally
connected to the reference.
This increased integration allows the user to replace
two packages, which saves space, lowers supply
current and increases system performance. The
TC1028 operates from two 1.5V alkaline cells down to
VDD = 1.8V. It requires only 10μA typical of supply
current, which significantly extends battery life. A low
power shutdown input (SHDN) disables the entire chip,
placing all outputs in a high-impedance state. This
mode saves battery power and allows comparator
outputs to share common analog lines (multiplexing).
Shutdown current is 0.05μA typical.
Rail-to-rail inputs and outputs allow operation from low
supply voltages with large input and output signal
swings.
Packaged in an 8-Pin MSOP, the TC1028 is ideal for
applications requiring low power level detection.