AD8275BRMZ Analog Devices Inc, AD8275BRMZ Datasheet
AD8275BRMZ
Specifications of AD8275BRMZ
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AD8275BRMZ Summary of contents
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FEATURES Translates ± Drives 16-bit SAR ADCs Small MSOP package Input overvoltage: + − Fast settling time: 450 ns to 0.001% Rail-to-rail output Wide supply operation: +3 +15 V ...
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AD8275 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Pin Configuration ............................................................................. 1 Typical Application........................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 Maximum Power Dissipation ..................................................... 4 ESD Caution ...
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SPECIFICATIONS 0.2, REF1 connected to GND and REF2 connected Specifications referred to output unless otherwise noted. Table 2. Parameter Test Conditions/Comments DYNAMIC PERFORMANCE Small Signal Bandwidth −3 dB Slew ...
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AD8275 ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Supply Voltage Output Short-Circuit Current Voltage at +IN, −IN Pins Voltage at REFx − SENSE and OUT Pins Current into REFx, +IN, −IN, SENSE, and OUT Pins ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 REF1 Reference Pin. Sets the output voltage level (see the Reference section). 2 −IN Negative Input Pin. 3 +IN Positive Input Pin. 4 −V Negative ...
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AD8275 TYPICAL PERFORMANCE CHARACTERISTICS 0.2, REF1 connected to GND and REF2 connected –600 –400 –200 0 OFFSET VOLTAGE (µV) Figure 5. ...
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OUTPUT VOLTAGE (V) Figure 11. Input Common-Mode Voltage vs. Output Voltage, No Load 0 –5 –10 –15 –20 ...
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AD8275 SOURCE 30 3.3V SOURCE –10 –20 –30 3.3V SINK –40 5V SINK –50 –60 –70 –50 – TEMPERATURE (°C) Figure 17. Short-Circuit Current vs. Temperature –40°C ...
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TEMPERATURE (°C) Figure 23. Slew Rate vs. Temperature C = 47pF LOAD 2kΩ NO LOAD 600Ω 10kΩ 1µs/DIV Figure 24. Small Signal Step ...
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AD8275 10V/DIV 10mV/DIV 2µs/DIV Figure 29. Large Signal Pulse Response and Settling Time p-p OUT 0.1 0.01 0.001 0.0001 kΩ Figure 30. THD + N vs. Frequency Rev ...
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THEORY OF OPERATION The AD8275 level translates ±10 V signals at its inputs its output. It does this by attenuating the input signal subtractor network performs the attenuation, the level shifting, and the ...
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AD8275 POWER SUPPLIES Use a stable dc voltage to power the AD8275. Noise on the supply pins can adversely affect performance. Place a bypass capacitor of 0.1 µF between each supply pin and ground, as close to each pin as ...
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CONFIGURATIONS Figure 36 and Figure 37, along with Table 6 and Table 7, provide examples of the possible input and output ranges for various supplies and reference voltages. +5V 0.1µF 7 LINEAR RANGE S HI 50kΩ 10kΩ ...
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AD8275 APPLICATIONS INFORMATION DRIVING A SINGLE-ENDED ADC The AD8275 provides the common-mode rejection that SAR ADCs often lack. In addition, it enables designers to use cost- effective, precision, 16-bit ADCs such as the AD7685, yet still condition ±10 V signals. ...
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INCREASING INPUT IMPEDANCE In applications where a high input impedance is needed, low input bias current op amps can be used to buffer the AD8275. In Figure 41, an AD8620 is used to provide high input imped- ance. Input bias ...
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... AD8275ARMZ-RL −40°C to +85°C AD8275BRMZ −40°C to +85°C AD8275BRMZ-R7 −40°C to +85°C AD8275BRMZ-RL −40°C to +85° RoHS Compliant Part. ©2008-2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 3.20 3 ...