MAX4470

 

Part Number	Replacement	Explanation

Description

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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.

MAX4464, MAX4470, MAX4471, MAX4472, MAX4474: Pin Configurations Enlarge+

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