The MAX9025–MAX9028 nanopower comparators in
space-saving chip-scale (UCSP™) packages feature
Beyond-the-Rails™ inputs and are guaranteed to operate
down to +1.8V. The MAX9025/MAX9026 feature an
on-board 1.236V ±1% reference and draw an ultra-low
supply current of only 1µA, while the MAX9027/MAX9028 (without reference) require just 0.6µA of supply
current. These features make the MAX9025–MAX9028
family of comparators ideal for all 2-cell battery-monitoring/management applications.
The unique design of the output stage limits supply-current
surges while switching, virtually eliminating the
supply glitches typical of many other comparators. This
design also minimizes overall power consumption under
dynamic conditions. The MAX9025/MAX9027 have a
push-pull output stage that sinks and sources current.
Large internal-output drivers allow rail-to-rail output
swing with loads up to 5mA. The MAX9026/MAX9028
have an open-drain output stage that makes them suitable
for mixed-voltage system design. All devices are
available in the miniature 6-bump UCSP packages.
Refer to the MAX9117 data sheet for similar comparators
in 5-pin SC70 packages and the MAX9017 data sheet for
similar dual comparators in 8-pin SOT23 packages.
Key Features
Applications/Uses
Space-Saving UCSP Package (1mm x 1.52mm)
Ultra-Low Supply Current
0.6µA (MAX9027/MAX9028)
1µA with Reference (MAX9025/MAX9026)
Guaranteed to Operate Down to +1.8V
Internal 1.236V ±1% Reference (MAX9025/MAX9026)
Input Voltage Range Extends 200mV Beyond-the-Rails
CMOS Push-Pull Output with ±5mA Drive Capability (MAX9025/MAX9027)
Open-Drain Output Versions Available (MAX9026/MAX9028)
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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