AD797BRZ Analog Devices Inc, AD797BRZ Datasheet
AD797BRZ
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AD797BRZ Summary of contents
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FEATURES Low noise 0.9 nV/√Hz typical (1.2 nV/√Hz maximum) input voltage noise at 1 kHz 50 nV p-p input voltage noise, 0 Low distortion −120 dB total harmonic distortion at 20 kHz Excellent ac characteristics 800 ...
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AD797 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 5 Pin Configuration ............................................................................. 5 Thermal Resistance ...................................................................... 5 ESD Caution .................................................................................. 5 Typical Performance ...
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SPECIFICATIONS T = 25°C and V = ±15 V dc, unless otherwise noted Table 2. Parameter Conditions INPUT OFFSET VOLTAGE MIN MAX Offset Voltage Drift INPUT BIAS CURRENT MIN MAX INPUT OFFSET ...
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AD797 Parameter Conditions TOTAL HARMONIC kΩ, C LOAD DISTORTION f = 250 kHz rms kΩ, LOAD kHz rms INPUT CHARACTERISTICS Input Resistance Differential Common Mode Input Capacitance ...
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ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Supply Voltage Input Voltage 1 Differential Input Voltage Output Short-Circuit Duration Storage Temperature Range (N, R Suffix) Operating Temperature Range Lead Temperature (Soldering 60 sec) 1 The AD797 inputs are protected by back-to-back diodes. ...
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AD797 TYPICAL PERFORMANCE CHARACTERISTICS SUPPLY VOLTAGE (±V) Figure 3. Input Common-Mode Voltage Range vs. Supply Voltage OUT –V OUT SUPPLY VOLTAGE (±V) Figure ...
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SUPPLY VOLTAGE (±V) Figure 9. Quiescent Supply Current vs. Supply Voltage f = 1kHz R = 600Ω + ±5 ±10 ...
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AD797 100 1k 10k 100k FREQUENCY (Hz) Figure 15. Input Voltage Noise Spectral Density 120 PHASE MARGIN 100 WITH GAIN 100 S 20 *SEE FIGURE 25. WITH ...
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S * 1kΩ AD797 –V S *SEE FIGURE 35. Figure 21. Inverter Connection 1µs 100 Figure 22. Inverter Large-Signal Pulse Response 50mV 100 90 10 ...
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AD797 50mV 100 Figure 27. 16-Bit Settling Time Positive Input Pulse 50mV 100 Figure 28. 16-Bit Settling Time Negative Input Pulse – 90 500ns –100 –110 –120 –130 100 500ns Rev Page ...
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THEORY OF OPERATION The architecture of the AD797 was developed to overcome inherent limitations in previous amplifier designs. Previous precision amplifiers used three stages to ensure high open-loop gain (see Figure 30) at the expense of additional frequency com- pensation ...
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AD797 NOISE AND SOURCE IMPEDANCE CONSIDERATIONS The AD797 ultralow voltage noise of 0.9 nV/√Hz is achieved with special input transistors running at nearly collector current. Therefore important to consider the total input- referred noise (e ...
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BYPASSING CONSIDERATIONS Taking full advantage of the very wide bandwidth and dynamic range capabilities of the AD797 requires some precautions. First, multiple bypassing is recommended in any precision application. A 1.0 μF to 4.7 μF tantalum in parallel with 0.1 ...
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AD797 The I-to-V converter is a special case of the follower configu- ration. When the AD797 is used in an I-to-V converter, for example as a DAC buffer, the circuit shown in Figure 39 should be used. The value of ...
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TO TEKTRONIX OSCILLOSCOPE PREAMP INPUT SECTION 226Ω 4.26kΩ – AD829 2× HP2835 0.47µ –V S 1kΩ 1kΩ 100Ω 1kΩ TEKTRONIX CALIBRATION FIXTURE V IN 1kΩ – AD797 7 + ...
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AD797 Differential Line Receiver The differential receiver circuit of Figure 46 is useful for many applications, from audio to MRI imaging. The circuit allows extraction of a low level signal in the presence of common- mode noise. As shown in ...
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Ultrasound/Sonar Imaging Preamp The AD600 variable gain amplifier provides the time-controlled gain (TCG) function necessary for very wide dynamic range sonar and low frequency ultrasound applications. Under some circumstances necessary to buffer the input of the AD600 to ...
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AD797 OUTLINE DIMENSIONS 0.210 (5.33) MAX 0.150 (3.81) 0.130 (3.30) 0.115 (2.92) 0.022 (0.56) 0.018 (0.46) 0.014 (0.36) CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE ...
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... AD797BR-REEL7 −40°C to +85°C AD797BRZ −40°C to +85°C AD797BRZ-REEL −40°C to +85°C AD797BRZ-REEL7 −40°C to +85° RoHS Compliant Part. Package Description 8-Lead Plastic Dual In-Line Package [PDIP] 8-Lead Standard Small Outline Package [SOIC_N] ...
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AD797 NOTES ©2002-2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00846-0-6/10(H) Rev Page ...