Part Number: MAX44268

Function: Low-Power Dual Comparator with Reference

Package: WLP 1.3mm x 1.3mm Type

Manufacturer: Maxim Integrated

Pinouts:

 

Description

The MAX44268 is an ultra-small and low-power dual comparator ideal for battery-powered applications such as cell phones, notebooks, and portable medical devices
that have extremely aggressive board space and power constraints. The comparator is available in a miniature 1.3mm x 1.3mm, 9-bump WLP package, making it the industry’s smallest dual comparator. The IC can be powered from supply rails as low as 1.8V
and up to 5.5V. It also features a 1.236V ±1% reference and a 0.7µA typical supply current per comparator. It has a rail-to-rail input structure and a unique output stage that
limits supply current surges while switching. This design also minimizes overall power consumption under dynamic conditions. The IC has open-drain outputs, making it suitable for mixed voltage systems. The IC also features internal filtering to provide high RF immunity. It operates over a -40°C to +85°C temperature.

Features

1. Ultra-Low Power Consumption
(1) 0.7µA per Comparator

2. Ultra-Small 1.3mm x 1.3mm WLP Package

3. Internal 1.236V ±1% Reference

4. Guaranteed Operation Down to VCC= 1.8V

5. Input Common-Mode Voltage Range Extends 200mV Beyond-the-Rails

6. 6V Tolerant Inputs Independent of Supply

7. Open-Drain Outputs

8. Internal Filters Enhance RF Immunity

9. Crowbar-Current-Free Switching

10. Internal Hysteresis for Clean Switching

11. No Output Phase Reversal for Overdriven Inputs

 

MAX44268 Datasheet PDF Download

Other data sheets are available within the file: MAX44268EWL+T

Part Number: LM393

Function: DUAL DIFFERENTIAL COMPARATOR

Package: DIP, SOP 8 Pin Type

Manufacturer: Motorola, Texas Instruments

Pinouts:

 

Description

The LM393 consist of two independent voltage comparators that is designed to operate from a single power supply over a wide range of voltages. Operation from dual supplies also is possible as long as the difference between the two supplies is 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships. The LM193 is characterized for operation from −55°C to 125°C. The LM293 and LM293A are characterized for operation from −25°C to 85°C. The LM2903 is characterized for operation from −40°C to 125°C.

Features

• Single Supply or Dual Supplies

• Wide Range of Supply Voltage
– Max Rating: 2 V to 36 V
– Tested to 30 V: Non-V Devices
– Tested to 32 V: V-Suffix Devices

• Low Supply-Current Drain Independent of Supply Voltage: 0.4 mA (Typ) Per Comparator

• Low Input Bias Current: 25 nA (Typ)

• Low Input Offset Current: 3 nA (Typ) (LM139)

• Low Input Offset Voltage: 2 mV (Typ)

• Common-Mode Input Voltage Range Includes Ground

• Differential Input Voltage Range Equal to Maximum-Rated Supply Voltage: ±36 V

• Low Output Saturation Voltage

• Output Compatible With TTL, MOS, and CMOS

• On Products Compliant to MIL-PRF-38535 All Parameters Are Tested Unless Otherwise

Applications:

• Vacuum robot

• Single phase UPS

• Server PSU

• Cordless power tool

• Wireless infrastructure

 

Other data sheets are available within the file: LM193, LM193DR, LM2903, LM2903DGKR, LM2903DR

 

LM393 Datasheet PDF Download