What the MAX9034AUD+ brings to the signal chain
The MAX9034AUD+ is a quad general-purpose comparator from Analog Devices, packing four independent push-pull rail-to-rail outputs into a 14-TSSOP package. With a 228ns max propagation delay and a quiescent current of just 55µA, it fits designs that need multiple threshold detectors or zero-crossing circuits without burning the power budget. The 100dB CMRR and PSRR mean it rejects supply ripple and common-mode noise well enough for industrial sensor interfaces and battery-monitoring comparators.
Supply range and temperature grade — where it works
Rated for 2.5V to 5.5V single supply, the MAX9034AUD+ runs off a 3.3V or 5V rail without a secondary regulator. The -40°C to 125°C operating range covers industrial and automotive cabin environments — fine for motor-drive feedback, ECU-level sensing, or outdoor telecom gear. The push-pull output eliminates the need for an external pull-up resistor, which simplifies layout and saves a few components per channel.
Package and mounting
14-TSSOP with a 0.173-inch body width. Surface-mount only, no through-hole option.
Lifecycle and sourcing
Analog Devices lists the MAX9034AUD+ as Active with ROHS3 compliance.