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MAX9945: 38V, Low-Noise, MOS-Input, Low-Power Op Amp Data Sheet (Rev. 1)12/17/2010PDF953K
MAX9945
38V, Low-Noise, MOS-Input, Low-Power Op Amp
Great Combination of Low Power and Low Noise in a Small Package
Top
Overview
Features and Benefits
- +4.75V to +38V Single-Supply Voltage Range
- ±2.4V to ±19V Dual-Supply Voltage Range
- Rail-to-Rail Output Voltage Swing
- 400µA Low Quiescent Current
- 50fA Low Input Bias Current
- 1fA/
Low Input Current Noise
- 15nV/ Low Noise
- 3MHz Unity-Gain Bandwidth
- Wide Temperature Range from -40°C to +125°C
- Available in Space-Saving, 6-Pin TDFN Package (3mm x 3mm)
Product Details
The MAX9945 operational amplifier features an excellent combination of low operating power and low input voltage noise. In addition, MOS inputs enable the MAX9945 to feature low input bias currents and low input current noise. The device accepts a wide supply voltage range from 4.75V to 38V and draws a low 400µA quiescent current. The MAX9945 is unity-gain stable and is capable of rail-to-rail output voltage swing.
The MAX9945 is ideal for portable medical and industrial applications that require low noise analog front-ends for performance applications such as photodiode transimpedance and chemical sensor interface circuits.
The MAX9945 is available in both an 8-pin µMAX® and a space-saving, 6-pin TDFN package, and is specified over the automotive operating temperature range (-40°C to +125°C).
Applications
- Active Filters and Signal Processing
- Automatic Test Equipment (ATE)
- Chemical Sensor Interface
- Displays: Industrial, Front Panel, and Instrumentation
- High-Performance Audio Line Out
- Industrial Sensors and Instrumentation
- Industrial: Process Measurement and Control
- Medical Pulse Oximetry
- Panel Meters
- Photodiode Sensor Interface
- Power Meters
- Programmable Logic Controllers (PLCs)
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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MAX9945 Reliability Data1/12/2023PDF31K
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
Sample & Buy
Ordering FAQs
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Buy Now Pricing
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List Pricing
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Lead Times
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Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.