MAX9945 Maxim, MAX9945 Datasheet
MAX9945
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MAX9945 Summary of contents
Page 1
... The device accepts a wide supply voltage range from 4.75V to 38V and draws a low 400µA quiescent cur- rent. The MAX9945 is unity-gain stable and is capable of rail-to-rail output voltage swing. The MAX9945 is ideal for portable medical and industri- ...
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... For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
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ELECTRICAL CHARACTERISTICS (continued +15V -15V IN+ IN- unless otherwise noted.) (Note 2) PARAMETER SYMBOL Output Voltage Low Output Voltage High AC ELECTRICAL CHARACTERISTICS Input Current-Noise Density Input Voltage Noise ...
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... TEMPERATURE 0.25 0.20 0. 1.0mA SINK 0. 0.1mA SINK 0.05 0 -40 - 100 120 TEMPERATURE (°C) INPUT VOLTAGE 0.1Hz TO 10Hz NOISE MAX9945 toc05 1s/div 1µV/div TOTAL HARMONIC DISTORTION + NOISE -50 -60 -70 -80 -90 -100 10 10,000 100,000 OUTPUT VOLTAGE SWING HIGH vs. TEMPERATURE 0.25 0.20 0. 1.0mA SOURCE 0. 0.1mA SOURCE ...
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V = -15V IN+ IN- unless otherwise noted.) INPUT OFFSET VOLTAGE vs. COMMON-MODE VOLTAGE 1000 800 600 400 200 0 -15 -10 -5 COMMON-MODE VOLTAGE (V) OPEN-LOOP GAIN vs. FREQUENCY ...
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... OUTPUT IMPEDANCE vs. FREQUENCY ACL = 10 ACL = 1 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) LARGE SIGNAL-STEP RESPONSE MAX9945 toc18 10V IN P 10kΩ 100pF L 4μs/div SMALL SIGNAL-STEP RESPONSE MAX9945 toc20 40mV IN P 100kΩ L 2μs/div = +25°C, A ...
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... The MAX9945 features a combination of low input cur- rent and voltage noise, rail-to-rail output voltage swing, wide supply voltage range, and low-power operation. The MOS inputs on the MAX9945 make it ideal for use as transimpedance amplifiers and high-impedance sensor interface front-ends in medical and industrial applications ...
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... A good layout guard rail isolates sensitive nodes, such as the inverting input of the MAX9945 and the traces connecting to it (see Figure 1), from varying or large volt- age differentials that otherwise occur in the rest of the circuit board ...
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... Figure 2). The extremely low input bias current of the MAX9945 allows a wide range of input series resistors to be used. If low input voltage noise is critical to the application, size the input series resistors appropriately ...
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... Low-Noise, MOS-Input, Low-Power Op Amp TOP VIEW + N.C. 1 IN- 2 MAX9945 IN ______________________________________________________________________________________ 8 N.C. OUT OUT IN+ 5 N.C. µMAX Pin Configurations + N.C. MAX9945 3 4 IN- EP TDFN ...
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... For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. ...
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... Low-Power Op Amp For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...
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... For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. ...
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... Note 3 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...