General Description

The MAX40000/MAX40001 are tiny, single comparators

with built-in voltage references that are ideal for a wide

variety of portable electronics applications, such as cell

phones, portable instruments, and notebooks that have

extremely tight board space and power constraints. The

MAX40000/MAX40001 are available in a 6-bump wafer-

level package (WLP) with 1.11mm x 0.76mm footprint and

a 6-pin SOT23 package. The MAX40000 has a push-pull

output and the MAX40001 has an open-drain output.

The devices offer a supply voltage range from 1.7V to

5.5V and consume only 0.9μA of supply current. They also

feature internal filtering to provide high RF immunity, im-

portant in many portable applications.

The devices have a high-precision integrated reference

that is factory trimmed to an initial accuracy of 1% and bet-

ter than 2.5% over the entire temperature range. Internal

reference voltage options include 1.252V, 1.66V, 1.94V,

and 2.22V. See Ordering Information for help with order-

ing a MAX40000/MAX40001 with a particular voltage ref-

erence value and package type. The reference output is

stable for capacitive loads up to 100pF.

These devices are fully specified over -40°C to +125°C

automotive temperature range.

Applications

● Cell Phones

● Tablets and Consumer Accessories

● Notebook Computers

● Electronic Toys

● Portable Medical Instruments/Wearables

● Level Detectors

Benefits and Features

● Micropower Operating Current (0.9μA typ, 1.7μA max)

Preserves Battery Power

● Tiny 1.11mm x 0.76mm 6-Bump WLP and SOT23

Packages Save Board Space

● Internal Precision Reference Saves Space and Cost

of an External Reference

• < 1% at Room Temperature, < 2.5% Over Temp

Reference

• Multiple Reference Voltages (1.252V, 1.66V, 1.94V,

and 2.22V)

● Input Voltage Range = -0.2V to 5.7V

● Supply Voltage Range (1.7V to 5.5V) Allows

Operation from 1.8V, 2.5V, 3V, and 5V Supplies

● <10μs Propagation Delay

● Push-Pull (MAX40000) or Open-Drain (MAX40001)

Outputs

Ordering Information appears at end of data sheet.

Simplified Block Diagram

MAX40000

MAX40001

RF

GND

IP

OP

IM

VDD

REF

Click here to ask about the production status of specific part numbers.

MAX40000/MAX40001

1.7V, nanoPower Comparators with Built-In

Reference

19-8610; Rev 6; 5/21