MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps
Sub-µA (750nA) Op Amp Extends Battery Life
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Overview
Features and Benefits
- 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
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.
Applications
- 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
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Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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Analog ICs for Low Voltage Systems3/23/2006
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