MAX9634
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MAX9634

nanoPower, 4-Bump UCSP/SOT23, Precision Current-Sense Amplifier

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Industry's Smallest Current-Sense Amp: 1mm x 1mm with ICC < 1µA, VOS < 250µV, Gain Error < 0.5%

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Info: : PRODUCTION tooltip
Part Details
Part Models 16
1ku List Price Starting From $0.86
Features
  • Ultra-Low Supply Current of 1µA (max)
  • Low 250µV (max) Input Offset Voltage
  • Low < 0.5% (max) Gain Error
  • Input Common Mode: +1.6V to +28V
  • Voltage Output
  • Four Gain Versions Available
    • 25V/V (MAX9634T)
    • 50V/V (MAX9634F)
    • 100V/V (MAX9634H)
    • 200V/V (MAX9634W)
  • Tiny 1mm x 1mm x 0.6mm, 4-Bump UCSP or 5-Pin SOT23 Packages
Additional Details
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The MAX9634 high-side current-sense amplifier offers precision accuracy specifications of VOS less than 250µV (max) and gain error less than 0.5% (max). Quiescent supply current is an ultra-low 1µA. The MAX9634 fits in a tiny, 1mm x 1mm UCSP™ package size or a 5-pin SOT23 package, making the part ideal for applications in notebook computers, cell phones, PDAs, and all battery-operated portable devices where accuracy, low quiescent current, and small size are critical.

The MAX9634 features an input common-mode voltage range from 1.6V to 28V. These current-sense amplifiers have a voltage output and are offered in four gain versions: 25V/V (MAX9634T), 50V/V (MAX9634F), 100V/V (MAX9634H), and 200V/V (MAX9634W).

The four gain selections offer flexibility in the choice of the external current-sense resistor. The very low 250µV (max) input offset voltage allows small 25mV to 50mV full-scale VSENSE voltage for very low voltage drop at full-current measurement.

The MAX9634 is offered in tiny 4-bump UCSP (1mm x 1mm x 0.6mm footprint) and 5-pin SOT23 packages.

Applications

  • Cell Phones
  • Notebook Computers
  • PDAs
  • Portable/Battery-Powered Systems
  • Power-Management Systems
Part Models 16
1ku List Price Starting From $0.86

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX9634FERS+
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MAX9634FERS+T
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MAX9634FEUK+
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MAX9634HERS+
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MAX9634HERS+T
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MAX9634HEUK+
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MAX9634HEUK+T
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MAX9634TERS+
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MAX9634TERS+T
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MAX9634TEUK+
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MAX9634TEUK+T
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MAX9634WERS+
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MAX9634WERS+T
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MAX9634WEUK+
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MAX9634WEUK+T
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Product Lifecycle

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Jul 19, 2016

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Jul 19, 2016

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ASSEMBLY

MAX9634FERS+T

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MAX9634HERS+T

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MAX9634TERS+T

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MAX9634WERS+T

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Dec 8, 2015

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WAFER FAB

MAX9634FERS+T

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MAX9634HERS+T

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MAX9634TERS+T

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Jan 11, 2021

- 1703RN

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ASSEMBLY

MAX9634FEUK+

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MAX9634HEUK+

PRODUCTION

MAX9634WEUK+

PRODUCTION

MAX9634WEUK+T

PRODUCTION

Feb 4, 2015

- 1341_CANCELLATION

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ASSEMBLY

MAX9634FEUK+

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MAX9634FEUK+T

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MAX9634HEUK+

PRODUCTION

MAX9634HEUK+T

PRODUCTION

MAX9634TEUK+

PRODUCTION

MAX9634TEUK+T

PRODUCTION

MAX9634WEUK+

PRODUCTION

MAX9634WEUK+T

PRODUCTION

Jun 29, 2018

- 1703N

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ASSEMBLY

MAX9634FEUK+T

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

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MAXNANOPWRBD

Evaluation Kit for the MAX32660, MAX11615, MAX40007, MAX9119, MAX9634, MAX17222

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MAXNANOPWRBD

Evaluation Kit for the MAX32660, MAX11615, MAX40007, MAX9119, MAX9634, MAX17222

Evaluation Kit for the MAX32660, MAX11615, MAX40007, MAX9119, MAX9634, MAX17222

Features and Benefits

  • Ultra-Low Power MAX32660 Arm Cortex M4F
  • MAX11615 Low Power 8-Channel 12-Bit ADC
  • MAX40007 Nanopower Op-Amp
  • MAX9119 Nanopower Comparator
  • MAX9634 Current Sense Amplifier
  • MAX17222 Boost Convertor
  • PCB mounted Coin Cell Power Source

Product Detail

The MAXNANOPWRBD evaluation kit brings together Maxim’s Nanopower technology with the ultra-low power, low pin count, MAX32660 Arm® Cortex®-M4 processor with FPU to create a simple digital multimeter application example running on a single 1.5V alkaline button cell.

The kit includes the following items:

  • MAXNANOPWRBD# circuit board
  • MAX326325PICO JTAG debugger/programmer

Applications

  • Fitness Monitors
  • Industrial Sensors
  • IoT
  • Optical Modules: QSFP-DD, QSFP, 400G
  • Portable Medical Devices
  • Sports Watches
  • Wearable Medical Patches

MAX9634EVKIT

Evaluation Kit for the MAX9634

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MAX9634EVKIT

Evaluation Kit for the MAX9634

Evaluation Kit for the MAX9634

Features and Benefits

  • Precision Real-Time Current Monitoring
  • 1.6V to 28V Input Common-Mode Range
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX9634 evaluation kit (EV kit) provides a proven design to evaluate the MAX9634 high-side current-sense amplifier, which offers precision accuracy specifications of VOS less than 250µV (max) and gain error less than 0.5% (max). This EV kit demonstrates the MAX9634 in a tiny 1mm x 1mm x 0.6mm, 4-bump UCSP™ package. The MAX9634 is also available in a 5-pin SOT23, but that package is not compatible with this EV kit.

The EV kit PCB comes with a MAX9634FERS+ installed, which is the 50V/V gain version. Contact the factory for free samples of the pin-compatible MAX9634TERS+, MAX9634HERS+, and MAX9634WERS+, which are 25V/V, 100V/V, and 200V/V gain versions, respectively.

Applications

  • Cell Phones
  • Notebook Computers
  • PDAs
  • Portable/Battery-Powered Systems
  • Power-Management Systems

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