AD8021ARMZ Analog Devices Inc, AD8021ARMZ Datasheet
AD8021ARMZ
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AD8021ARMZ Summary of contents
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FEATURES Low noise 2.1 nV/√Hz input voltage noise 2.1 pA/√Hz input current noise Custom compensation Constant bandwidth from G = − −10 High speed 200 MHz (G = −1) 190 MHz (G = −10) Low power 34 ...
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AD8021 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Connection Diagram ....................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 7 Maximum Power Dissipation ..................................................... 7 ESD Caution.................................................................................. 7 Pin Configuration and Function Descriptions............................. ...
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SPECIFICATIONS V = ± 25° kΩ, gain = +2, unless otherwise noted Table 1. Parameter DYNAMIC PERFORMANCE −3 dB Small Signal Bandwidth Slew Rate Step Settling Time to ...
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AD8021 Parameter Disabled Leakage Current POWER SUPPLY Operating Range Quiescent Current +Power Supply Rejection Ratio −Power Supply Rejection Ratio V = ± 25° kΩ, gain = +2, unless otherwise noted ...
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Parameter OUTPUT CHARACTERISTICS Output Voltage Swing Linear Output Current Short-Circuit Current Capacitive Load Drive for 30% Overshoot DISABLE CHARACTERISTICS Off Isolation Turn-On Time Turn-Off Time DISABLE Voltage—Off/On Enabled Leakage Current Disabled Leakage Current POWER SUPPLY Operating Range Quiescent Current +Power ...
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AD8021 Parameter DC PERFORMANCE Input Offset Voltage Input Offset Voltage Drift Input Bias Current Input Bias Current Drift Input Offset Current Open-Loop Gain INPUT CHARACTERISTICS Input Resistance Common-Mode Input Capacitance Input Common-Mode Voltage Range Common-Mode Rejection Ratio OUTPUT CHARACTERISTICS Output ...
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ABSOLUTE MAXIMUM RATINGS Table 4. Parameter Supply Voltage Power Dissipation Input Voltage (Common Mode) Differential Input Voltage 1 Differential Input Current Output Short-Circuit Duration Storage Temperature Range Operating Temperature Range Lead Temperature (Soldering, 10 sec) 1 The AD8021 inputs are ...
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AD8021 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 5. Pin Function Descriptions Pin No. Mnemonic 1 LOGIC REFERENCE 2 −IN 3 +IN 4 − COMP 6 V OUT DISABLE 1 When Pin 8 ( ...
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TYPICAL PERFORMANCE CHARACTERISTICS T = 25° ± kΩ + frequency = 1 MHz, unless otherwise noted +10 1kΩ 110Ω ...
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AD8021 100Ω 0.1M 1M 10M FREQUENCY (Hz) Figure 11. Large Signal Frequency Response vs. Frequency and Load, Noninverting (See Figure 49 ...
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6.2 6 ±5V S 5.8 5.6 5.4 1M 10M FREQUENCY (Hz) Figure 17. 0.1 dB Flatness vs. Frequency and Supply 150 Ω, Noninverting (See Figure 49) L –20 –30 –40 –50 ...
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AD8021 –50 –60 SECOND – 5MHz C –80 THIRD –90 SECOND f = 1MHz –100 C –110 THIRD –120 p-p) OUT Figure 23. Second and Third Harmonic Distortion vs. V Fundamental Frequency (f ...
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p 2 1kΩ L 1.0 –1.0 –2 120 TIME (ns) Figure 29. Large Signal Transient Response vs. R (See Figure 49 p ...
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AD8021 100 PULSE WIDTH = 120ns 20 0 –20 PULSE WIDTH = 300µs –40 5V –60 0V – –100 TIME (µs) Figure 35. Long-Term Settling ...
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FREQUENCY (Hz) Figure 41. CMRR vs. Frequency (See Figure 51) 300 100 0.3 0.1 0.03 0.01 0.003 10k 100k 1M 10M ...
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AD8021 8.5 8.0 7.5 7.0 6.5 6.0 5.5 –50 – TEMPERATURE (°C) Figure 47. Quiescent Supply Current vs. Temperature 50 75 100 Rev Page ...
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TEST CIRCUITS +V S 50Ω CABLE R S 50Ω 49.9Ω – Figure 48. Noninverting Gain 50Ω CABLE R S 50Ω 49.9Ω – Figure 49. ...
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AD8021 BIAS HP8753D BNC NETWORK ANALYZER 50Ω 49.9Ω 249Ω –V S 7pF 499Ω 499Ω Figure 56. Positive PSRR 50Ω 50Ω CABLE 976Ω 53.6Ω Rev Page BIAS HP8753D ...
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APPLICATIONS The typical voltage feedback op amp is frequency stabilized with a fixed internal capacitor, C INTERNAL compensation first-order approximation, voltage feedback op amps have a fixed gain bandwidth product. For example, if its −3 dB bandwidth is ...
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AD8021 kΩ 49.9 Ω (see Figure 49 Table 6. Recommended Component Values Noise Gain (Noninverting Gain) R (Ω) R (Ω ...
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THEORY OF OPERATION The AD8021 is fabricated on the second generation of Analog Devices proprietary High Voltage eXtra-Fast Complementary Bipolar (XFCB) process, which enables the construction of PNP and NPN transistors with similar the 3 GHz region. ...
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AD8021 DRIVING 16-BIT ADCs Low noise and adjustable compensation make the AD8021 especially suitable as a buffer/driver for high resolution ADCs. As seen in Figure 19, the harmonic distortion is better than 90 dBc at frequencies between 100 kHz and ...
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G = – –3 –6 –9 –12 –15 –18 100k 1M 10M FREQUENCY (Hz) Figure 66. AC Response of Two Identically Compensated High Speed Op Amps Configured for a Gain of +2 ...
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AD8021 18 FET + OBE 16 R SNUB 5 49.9 Ω 14 49.9 Ω 33pF L 1k Ω 12 – 499 Ω 499 Ω 8pF; C ...
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... AD8021ARM-REEL7 −40°C to +85°C 1 AD8021ARMZ −40°C to +85°C 1 AD8021ARMZ-REEL −40°C to +85°C 1 AD8021ARMZ-REEL7 −40°C to +85° Pb-free part, # denotes lead-free product may be top or bottom marked. 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2440) 4.00 (0.1574) 5 ...
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AD8021 NOTES Rev Page ...
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NOTES Rev Page AD8021 ...
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AD8021 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C01888-0-5/06(F) Rev Page ...