AD8021ARMZ-REEL
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Analog Devices Inc. AD8021ARMZ-REEL

Manufacturer No:
AD8021ARMZ-REEL
Manufacturer:
Analog Devices Inc.
Package:
Tape & Reel (TR)
Description:
IC VOLTAGE FEEDBACK 1 CIRC 8MSOP
Delivery:
Payment:
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Product Introduction

Overview

The AD8021ARMZ-REEL, produced by Analog Devices Inc., is a high-performance, high-speed voltage feedback operational amplifier. It is designed for use in 16-bit resolution systems and is notable for its low noise and high speed characteristics. This amplifier is fabricated using Analog Devices' proprietary High Voltage eXtra-Fast Complementary Bipolar (XFCB) process, which enables low voltage and low current noise while maintaining a low quiescent supply current. The AD8021 is ideal for a wide variety of gain configurations and can be used throughout a signal processing chain and in control loops.

Key Specifications

Parameter Typical Value Units
Input Voltage Noise 2.1 nV/√Hz
Input Current Noise 2.1 pA/√Hz
Quiescent Current 7 mA @ ±5 V
Quiescent Current (Output Disable) 1.3 mA
Supply Voltage Range ±2.25 V to ±12 V, 5 V to 24 V V
Bandwidth (G = +5, CC = 2pF, VO = 0.05V p-p) 200 MHz
Slew Rate 460 V/μs
Input Offset Voltage 0.4 mV
Input Offset Voltage Drift 0.5 μV/°C
Operating Temperature Range -40°C to +85°C °C
Package Type 8-lead MSOP
Common Mode Rejection Ratio (CMRR) 98 dB
Power Supply Rejection Ratio (PSRR) 95 dB

Key Features

  • Low noise and high speed operation, making it suitable for 16-bit resolution systems.
  • Low voltage and low current noise (2.1 nV/√Hz and 2.1 pA/√Hz, respectively).
  • Low quiescent supply current (7 mA @ ±5 V) with an output disable feature reducing it to 1.3 mA.
  • Wide operating supply voltage range from ±2.25 V to ±12 V and single 5 V to 24 V supplies.
  • High slew rate of 460 V/μs and a bandwidth of 200 MHz (G = +5, CC = 2pF, VO = 0.05V p-p).
  • Adjustable compensation for gain bandwidth product, allowing for trade-offs between bandwidth and stability.
  • Fast overload recovery of 50 ns and settling time to 0.01% in 23 ns for a 1 V step.
  • Capable of driving a 75 Ω line with ±3 V video signals.
  • Available in 8-lead SOIC and MSOP packages.

Applications

  • ADC preamps and drivers, particularly for high-resolution ADCs.
  • Instrumentation preamps and active filters.
  • Portable instrumentation and line receivers.
  • Precision instruments and ultrasound signal processing.
  • High gain circuits and control loops.
  • Differential drivers for balanced lines and other applications requiring differential drive.

Q & A

  1. What is the typical input voltage noise of the AD8021?

    The typical input voltage noise is 2.1 nV/√Hz.

  2. What is the quiescent current of the AD8021 when the output is disabled?

    The quiescent current is reduced to 1.3 mA when the output is disabled.

  3. What is the operating temperature range of the AD8021?

    The operating temperature range is -40°C to +85°C.

  4. What is the typical slew rate of the AD8021?

    The typical slew rate is 460 V/μs.

  5. Can the AD8021 drive a 75 Ω line?

    Yes, the AD8021 can drive a 75 Ω line with ±3 V video signals.

  6. What are the common package types for the AD8021?

    The AD8021 is available in 8-lead SOIC and MSOP packages.

  7. What is the typical bandwidth of the AD8021 at a gain of +5?

    The typical bandwidth is 200 MHz at a gain of +5, with CC = 2pF and VO = 0.05V p-p.

  8. How does the AD8021 perform in terms of harmonic distortion?

    The AD8021 has a harmonic distortion better than 90 dBc at frequencies between 100 kHz and 1 MHz.

  9. What is the input offset voltage drift of the AD8021?

    The input offset voltage drift is 0.5 μV/°C.

  10. Can the AD8021 be used as a differential driver?

    Yes, the AD8021 is uniquely suited as a low noise differential driver for many applications.

Product Attributes

Amplifier Type:Voltage Feedback
Number of Circuits:1
Output Type:- 
Slew Rate:460V/µs
Gain Bandwidth Product:- 
-3db Bandwidth:560 MHz
Current - Input Bias:7.5 µA
Voltage - Input Offset:400 µV
Current - Supply:7.8mA
Current - Output / Channel:70 mA
Voltage - Supply Span (Min):4.5 V
Voltage - Supply Span (Max):24 V
Operating Temperature:-40°C ~ 85°C
Mounting Type:Surface Mount
Package / Case:8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package:8-MSOP
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Similar Products

Part Number AD8021ARMZ-REEL AD8021ARMZ-REEL7 AD8021ARZ-REEL AD8022ARMZ-REEL AD8028ARMZ-REEL AD8021ARM-REEL
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active Active Obsolete Obsolete
Amplifier Type Voltage Feedback Voltage Feedback Voltage Feedback Voltage Feedback General Purpose Voltage Feedback
Number of Circuits 1 1 1 2 2 1
Output Type - - - - Rail-to-Rail -
Slew Rate 460V/µs 460V/µs 460V/µs 50V/µs 100V/µs 460V/µs
Gain Bandwidth Product - - - 100 MHz - -
-3db Bandwidth 560 MHz 560 MHz 560 MHz 130 MHz 190 MHz 560 MHz
Current - Input Bias 7.5 µA 7.5 µA 7.5 µA 2.5 µA 4 µA 7.5 µA
Voltage - Input Offset 400 µV 400 µV 400 µV 1.5 mV 200 µV 400 µV
Current - Supply 7.8mA 7.8mA 7.8mA 4mA 6.5mA (x2 Channels) 7.8mA
Current - Output / Channel 70 mA 70 mA 70 mA 55 mA 120 mA 70 mA
Voltage - Supply Span (Min) 4.5 V 4.5 V 4.5 V 4.5 V 2.7 V 4.5 V
Voltage - Supply Span (Max) 24 V 24 V 24 V 26 V 12 V 24 V
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 125°C -40°C ~ 85°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-SOIC (0.154", 3.90mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package 8-MSOP 8-MSOP 8-SOIC 8-MSOP 10-MSOP 8-MSOP

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