Top

Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps

Sub-µA (750nA) Op Amp Extends Battery Life

Product Details

The MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 family of micropower op amps operate from a single +1.8V to +5.5V supply and draw only 750nA of supply current. The MAX4470 family feature ground-sensing inputs and rail-to-rail output. The ultra-low supply current, low-operating voltage, and rail-to-rail output capabilities make these operational amplifiers ideal for use in single lithium ion (Li+), or two-cell NiCd or alkaline battery systems.

The rail-to-rail output stage of the MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 amplifiers is capable of driving the output voltage to within 4mV of the rail with a 100kΩ load, and can sink and source 11mA with a +5V supply. These amplifiers are available in both fully compensated and decompensated versions. The single MAX4470, dual MAX4471, and the quad MAX4472 are unity-gain stable. The single MAX4464 and the dual MAX4474 are stable for closed-loop gain configurations of ≥ +5V/V. These amplifiers are available in space-saving WLP, SC70, SOT23, µMAX®, and TSSOP packages.

Key Features

  • Ultra-Low 750nA Supply Current Per Amplifier
  • Ultra-Low +1.8V Supply Voltage Operation
  • Ground-Sensing Input Common-Mode Range
  • Outputs Swing Rail-to-Rail
  • Outputs Source and Sink 11mA of Load Current
  • No Phase Reversal for Overdriven Inputs
  • High 120dB Open-Loop Voltage Gain
  • Low 500µV Input Offset Voltage
  • 9kHz Gain-Bandwidth Product (MAX4470/MAX4471/MAX4472)
  • 40kHz Gain-Bandwidth Product (MAX4464/MAX4474)
  • 250pF (min) Capacitive Load Capability
  • Available in Tiny, 6-Bump WLP, 5-Pin SC70, and 8-Pin SOT23 Packages

Applications/Uses

  • Badges
  • Battery-Powered Systems
  • Cellular Handsets
  • Digital Cameras (DIGICAMs)
  • Electrometer Amplifiers
  • Glucose Meters
  • GPS Solutions
  • IP Camera
  • Micropower
  • MP3 and Portable Media Players
  • Pagers and Cellphones
  • pH Meters
  • Portable Instrumentation
  • Remote Sensor Active
  • Solar-Powered Systems
  • Thermostats
Parametric specs for Operational Amplifiers
Unity Gain BW (MHz) (typ) 0.009
Input IBIAS (nA) (max) 1.5
VOS (µV) (max) 7000
VSUPPLY (Total) (V) (min) 1.8
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 4
Rail to Rail Output Only
Package/Pins SOIC (N)/14
TSSOP/14
Budgetary
Price (See Notes)
$1.66 @1k
View More

Simplified Block Diagram

MAX4464, MAX4470, MAX4471, MAX4472, MAX4474: Pin Configurations MAX4464, MAX4470, MAX4471, MAX4472, MAX4474: Pin Configurations Zoom icon

Technical Docs

Design & Development

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

Description

The MAX4470 evaluation kit (EV kit) is a fully assembled and tested circuit board that contains all the components necessary to evaluate the MAX4470 IC, offered in a space-saving 1.27mm x 0.86mm WLP package. The device is a rail-to-rail micropower op amp, drawing only 750nA of supply current. The EV kit operates from a single 1.8V to 5.5V DC power supply.

View Details

Features

  • 1.8V to 5.5V Single-Supply Operation
  • Jumper Selectable for Inverting, Noninverting, Differential, and Buffer Op-Amp Configuration
  • Demonstrates Super-Capacitor Charge Balancing Using Op-Amp Buffer Configuration
  • Evaluates the Device in a 6-Bump Wafer-Level Package (WLP)
  • Fully Assembled and Tested

/en/design/design-tools/ee-sim.html?

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 Operational Amplifiers
Unity Gain BW (MHz) (typ) 0.009
Input IBIAS (nA) (max) 1.5
VOS (µV) (max) 7000
VSUPPLY (Total) (V) (min) 1.8
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 4
Rail to Rail Output Only
Package/Pins SOIC (N)/14
TSSOP/14
Budgetary
Price (See Notes)
$1.66 @1k

Key Features

  • Ultra-Low 750nA Supply Current Per Amplifier
  • Ultra-Low +1.8V Supply Voltage Operation
  • Ground-Sensing Input Common-Mode Range
  • Outputs Swing Rail-to-Rail
  • Outputs Source and Sink 11mA of Load Current
  • No Phase Reversal for Overdriven Inputs
  • High 120dB Open-Loop Voltage Gain
  • Low 500µV Input Offset Voltage
  • 9kHz Gain-Bandwidth Product (MAX4470/MAX4471/MAX4472)
  • 40kHz Gain-Bandwidth Product (MAX4464/MAX4474)
  • 250pF (min) Capacitive Load Capability
  • Available in Tiny, 6-Bump WLP, 5-Pin SC70, and 8-Pin SOT23 Packages

Applications/Uses

  • Badges
  • Battery-Powered Systems
  • Cellular Handsets
  • Digital Cameras (DIGICAMs)
  • Electrometer Amplifiers
  • Glucose Meters
  • GPS Solutions
  • IP Camera
  • Micropower
  • MP3 and Portable Media Players
  • Pagers and Cellphones
  • pH Meters
  • Portable Instrumentation
  • Remote Sensor Active
  • Solar-Powered Systems
  • Thermostats

Description

The MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 family of micropower op amps operate from a single +1.8V to +5.5V supply and draw only 750nA of supply current. The MAX4470 family feature ground-sensing inputs and rail-to-rail output. The ultra-low supply current, low-operating voltage, and rail-to-rail output capabilities make these operational amplifiers ideal for use in single lithium ion (Li+), or two-cell NiCd or alkaline battery systems.

The rail-to-rail output stage of the MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 amplifiers is capable of driving the output voltage to within 4mV of the rail with a 100kΩ load, and can sink and source 11mA with a +5V supply. These amplifiers are available in both fully compensated and decompensated versions. The single MAX4470, dual MAX4471, and the quad MAX4472 are unity-gain stable. The single MAX4464 and the dual MAX4474 are stable for closed-loop gain configurations of ≥ +5V/V. These amplifiers are available in space-saving WLP, SC70, SOT23, µMAX®, and TSSOP packages.

Simplified Block Diagram

MAX4464, MAX4470, MAX4471, MAX4472, MAX4474: Pin Configurations MAX4464, MAX4470, MAX4471, MAX4472, MAX4474: Pin Configurations Zoom icon

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