Comparator Single 11V 8-Pin MSOP

The ISL21440 is a micropower, FGA reference and comparator on a single chip. Drawing less than 5µA supply current over the full operating temperature range, the ISL21440 operates from a single 2V to 11V supply and can also be used with split bipolar supplies. The ISL21440’s on-board reference provides a 1.182V ±0.5% output. It features programmable hysteresis and TTL/CMOS compatible outputs that sink and source current. Low bias currents permit high value divider resistors for typical circuit current drains of <2.5µA. The low supply current makes the ISL21440 ideal for battery powered devices in battery level or low voltage monitor circuits. The ISL21440 is a pin-compatible, performance upgrade of both the LTC1440, LTC1540, MAX921 and MAX931.

• 5µA supply current over full temperature range
• Wide supply range 2V to 11V
• Precision 1.182V ±0.5% voltage reference
• Comparator with user programmable hysteresis
• Temperature range -40°C to +125°C
• 8 Ld MSOP and 8 Ld TDFN packages
• Pin compatible upgrade to MAX921 and LTC1440