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nanoPower Comparators with Precision Reference in 4-Bump UCSP

Deliver Ultra-Small, Low-Power Comparator Solutions for Mobile Devices

Product Details

The MAX9644/MAX9645/MAX9646 are small, single comparators, ideal for a wide variety of portable electronics applications such as cell phones, media players, and notebooks that have extremely tight board space and power constraints. These comparators are offered in both a miniature 4-bump UCSP™ package with a 1mm x 1mm footprint (as small as two 0402 resistors) and a 5-pin SOT23 package.

The ICs feature an input voltage range of -0.3V to +5.5V, independent of supply voltage. These devices maintain high impedance at the inputs even when powered down (VCC or VREF = 0V). They also feature internal filtering to provide high RF immunity.

The ICs have an internal 0.2V reference. These devices feature either a push-pull or an open-drain output. They consume only 700nA (max) supply current and operate down to VCC = 1V over the extended -40°C to +85°C temperature range.

Key Features

  • Tiny, 1mm x 1mm x 0.6mm 4-Bump UCSP
    • Footprint = Two 0402 Resistors
    • Also Available in a 5-Pin SOT23 Package
  • Ultra-Low Operating Current (700nA max)
  • -0.3V to +5.5V Input Voltage Range
  • Internal 0.2V Reference Trimmed to 1% Accuracy
  • 15µs Propagation Delay
  • -40°C to +85°C Extended Temperature Range

Applications/Uses

  • Cell Phones
  • Electronic Toys
  • Notebook Computers
  • Portable Media Players
  • Portable Medical Devices
Parametric specs for Comparators + Reference
tPD (µs) (typ) 15
VSUPPLY (V) (min) 1
VSUPPLY (V) (max) 5.5
# Comparators 1
Thresh. (V) 0.2
Oper. Temp. (°C) -40 to +85
Package/Pins SOT23/5
UCSP (B)/4
Budgetary
Price (See Notes)
$0.61 @1k
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Technical Docs

Design & Development

Click any title below to view the detail page where available.

Description

The MAX9644/MAX9645/MAX9646 evaluation kits (EV kits) are fully assembled and tested PCBs that evaluate the MAX9644/MAX9645/MAX9646 single comparators. All EV kits have a common internal reference voltage of +0.2V, operate from a +1V to +5.5V power supply (VCC), and have a common -0.3V to +5.5V input voltage (IN) range.

The EV kits are configured to evaluate both the 4-bump UCSP™ (installed) and an optional 5-pin SOT23 (to do so, request a free MAX9644/MAX9645/MAX9646 SOT23 IC sample when ordering the EV kits).

View Details

Features

  • -0.3V to +5.5V Input Voltage Range
  • +1V to +5.5V VCC Range
  • +0.2V Internal Reference Voltage
  • Evaluates 4-Bump UCSP and Optional 5-Pin SOT23 Packages
  • Proven PCB Layout
  • Fully Assembled and Tested

Description

The MAX9644/MAX9645/MAX9646 evaluation kits (EV kits) are fully assembled and tested PCBs that evaluate the MAX9644/MAX9645/MAX9646 single comparators. All EV kits have a common internal reference voltage of +0.2V, operate from a +1V to +5.5V power supply (VCC), and have a common -0.3V to +5.5V input voltage (IN) range.

The EV kits are configured to evaluate both the 4-bump UCSP™ (installed) and an optional 5-pin SOT23 (to do so, request a free MAX9644/MAX9645/MAX9646 SOT23 IC sample when ordering the EV kits).

View Details

Features

  • -0.3V to +5.5V Input Voltage Range
  • +1V to +5.5V VCC Range
  • +0.2V Internal Reference Voltage
  • Evaluates 4-Bump UCSP and Optional 5-Pin SOT23 Packages
  • Proven PCB Layout
  • Fully Assembled and Tested

Description

The MAX9644/MAX9645/MAX9646 evaluation kits (EV kits) are fully assembled and tested PCBs that evaluate the MAX9644/MAX9645/MAX9646 single comparators. All EV kits have a common internal reference voltage of +0.2V, operate from a +1V to +5.5V power supply (VCC), and have a common -0.3V to +5.5V input voltage (IN) range.

The EV kits are configured to evaluate both the 4-bump UCSP™ (installed) and an optional 5-pin SOT23 (to do so, request a free MAX9644/MAX9645/MAX9646 SOT23 IC sample when ordering the EV kits).

View Details

Features

  • -0.3V to +5.5V Input Voltage Range
  • +1V to +5.5V VCC Range
  • +0.2V Internal Reference Voltage
  • Evaluates 4-Bump UCSP and Optional 5-Pin SOT23 Packages
  • Proven PCB Layout
  • Fully Assembled and Tested

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Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal

Parameters

Parametric specs for Comparators + Reference
tPD (µs) (typ) 15
VSUPPLY (V) (min) 1
VSUPPLY (V) (max) 5.5
# Comparators 1
Thresh. (V) 0.2
Oper. Temp. (°C) -40 to +85
Package/Pins SOT23/5
UCSP (B)/4
Budgetary
Price (See Notes)
$0.61 @1k

Key Features

  • Tiny, 1mm x 1mm x 0.6mm 4-Bump UCSP
    • Footprint = Two 0402 Resistors
    • Also Available in a 5-Pin SOT23 Package
  • Ultra-Low Operating Current (700nA max)
  • -0.3V to +5.5V Input Voltage Range
  • Internal 0.2V Reference Trimmed to 1% Accuracy
  • 15µs Propagation Delay
  • -40°C to +85°C Extended Temperature Range

Applications/Uses

  • Cell Phones
  • Electronic Toys
  • Notebook Computers
  • Portable Media Players
  • Portable Medical Devices

Description

The MAX9644/MAX9645/MAX9646 are small, single comparators, ideal for a wide variety of portable electronics applications such as cell phones, media players, and notebooks that have extremely tight board space and power constraints. These comparators are offered in both a miniature 4-bump UCSP™ package with a 1mm x 1mm footprint (as small as two 0402 resistors) and a 5-pin SOT23 package.

The ICs feature an input voltage range of -0.3V to +5.5V, independent of supply voltage. These devices maintain high impedance at the inputs even when powered down (VCC or VREF = 0V). They also feature internal filtering to provide high RF immunity.

The ICs have an internal 0.2V reference. These devices feature either a push-pull or an open-drain output. They consume only 700nA (max) supply current and operate down to VCC = 1V over the extended -40°C to +85°C temperature range.

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal