AD8022AR

AD8022AR Datasheet


The AD8022 consists of two low noise, high speed, voltage feedback amplifiers. Each amplifier consumes only mA of quiescent current, yet has only of voltage noise. These dual amplifiers provide wideband, low distortion performance, with high output current optimized for stability when driving capacitive loads. Manufactured on ADI’s high voltage generation of XFCB bipolar process, the AD8022 operates on a wide range of supply voltages. The AD8022 is available in both an 8-lead MSOP and an 8-lead SOIC. Fast over voltage recovery and wide bandwidth make the AD8022 ideal as the receive channel front end to an ADSL, VDSL, or proprietary xDSL transceiver design.

Part Datasheet
AD8022AR AD8022AR AD8022AR (pdf)
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Low power amplifiers provide low noise and low distortion, ideal for xDSL modem receiver

Wide supply range +5 V, V to ±12 V voltage supply Low power consumption mA/Amp Voltage feedback

Ease of Use Lower total noise insignificant input current noise
contribution compared to current feedback amps Low noise and distortion
voltage noise 100 kHz current noise MTPR < −66 dBc G = +7 SFDR 110 dB 200 kHz High speed 130 MHz bandwidth −3 dB , G = +1 Settling time to 68 ns 50 V/us slew rate High output swing V on ±12 V supply Low offset voltage, mV typical

Receiver for ADSL, VDSL, HDSL, and proprietary xDSL systems

Low noise instrumentation front end Ultrasound preamps Active filters 16-bit ADC buffers

GENERAL DESCRIPTIONS

The AD8022 consists of two low noise, high speed, voltage feedback amplifiers. Each amplifier consumes only mA of quiescent current, yet has only of voltage noise. These dual amplifiers provide wideband, low distortion performance, with high output current optimized for stability when driving capacitive loads. Manufactured on ADI’s high voltage generation of XFCB bipolar process, the AD8022 operates on a wide range of supply voltages. The AD8022 is available in both an 8-lead MSOP and an 8-lead SOIC. Fast over voltage recovery and wide bandwidth make the AD8022 ideal as the receive channel front end to an ADSL, VDSL, or proprietary xDSL transceiver design.

In an xDSL line interface circuit, the AD8022’s op amps can be configured as the differential receiver from the line transformer or as independent active filters.

Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.

Dual High Speed, Low Noise Op Amp

AD8022

FUNCTIONAL BLOCK DIAGRAM

OUT1 1 2 +IN1 3 4

AD8022
8 +VS 7 OUT2 6 5 +IN2
01053-001

Figure
pA/ Hz, nV/ Hz
01053-002
eN nV/ Hz
iN pA/ Hz
100k

FREQUENCY Hz

Figure Current and Voltage Noise vs. Frequency

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2005 Analog Devices, Inc. All rights reserved.

AD8022

TABLE OF CONTENTS

Absolute Maximum 5

Maximum Power Dissipation 5

ESD 5

Typical Performance Characteristics 6

Theory of Operation 12
DMT Modulation and Multitone Power Ratio MTPR ....... 13 Channel Capacity and 13 Power Supply and 13 Layout 15 Outline Dimensions 16 Ordering Guide 16

AD8022

SPECIFICATIONS

At 25°C, VS = ±12 V, RL = 500 Ω, G = +1, TMIN = TMAX = +85°C, unless otherwise noted.

Table Parameter DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth for dB Flatness Large Signal Bandwidth1 Slew Rate Rise and Fall Time Settling Time Overdrive Recovery Time

NOISE/DISTORTION PERFORMANCE Distortion Second Harmonic Third Harmonic Multitone Input Power Ratio2

Voltage Noise RTI Input Current Noise DC PERFORMANCE Input Offset Voltage

Input Offset Current Input Bias Current

Open-Loop Gain INPUT CHARACTERISTICS

Input Resistance Differential Input Capacitance Input Common-Mode Voltage Range Common-Mode Rejection Ratio OUTPUT CHARACTERISTICS Output Voltage Swing

Linear Output Current Short-Circuit Output Current Capacitive Load Drive POWER SUPPLY Operating Range Quiescent Current

Power Supply Rejection Ratio OPERATING TEMPERATURE RANGE

Conditions

VOUT = 50 mV p-p VOUT = 50 mV p-p VOUT = 4 V p-p VOUT = 2 V p-p, G = +2 VOUT = 2 V p-p, G = +2 VOUT = 2 V p-p VOUT = 150% of max output voltage, G = +2

VOUT = 2 V p-p fC = 1 MHz fC = 1 MHz G = +7 differential 26 kHz to 132 kHz 144 kHz to MHz f = 100 kHz f = 100 kHz

TMIN to TMAX

TMIN to TMAX

VCM = ±3 V

RL = 500 Ω RL = 2 kΩ G = +1, RL = 150 Ω, dc error = 1%

RS = 0 Ω, <3 dB of peaking

TMIN to TMAX VS = ±5V to ±12 V

Min Typ
110 130 25 4
40 50 30 62 200
−95 −100
−66
±120
20 to 98
±55 100 75
80 −40
1 FPBW = Slew VPEAK . 2 Multitone testing performed with 800 mV rms across a 500 Ω load at Point A and Point B on the circuit of Figure

Max Unit

MHz V/us ns
kΩ pF V dB

V mA pF

V mA/Amp mA/Amp dB °C

AD8022

At 25°C, VS = V, RL = 500 Ω, G = +1, TMIN = TMAX = +85°C, unless otherwise noted.

Table Parameter DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth for dB Flatness Large Signal Bandwidth1 Slew Rate Rise and Fall Time Settling Time Overdrive Recovery Time
ORDERING GUIDE

Model AD8022AR-REEL AD8022AR-REEL7 AD8022ARZ1 AD8022ARZ-REEL1 AD8022ARZ-REEL71 AD8022ARM-REEL AD8022ARM-REEL7 AD8022ARMZ1 AD8022ARMZ-REEL1 AD8022ARMZ-REEL71
1 Z = Pb-free part.
x 45°

COPLANARITY

SEATING PLANE

COMPLIANT TO JEDEC STANDARDS MS-012-AA

CONTROLLING DIMENSIONS ARE IN MILLIMETERS INCH DIMENSIONS IN PARENTHESES ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN

Figure 8-Lead Standard Small Outline Package [SOIC_N] Narrow Body shown in millimeters and inches

PIN 1 BSC
8° 0°

COPLANARITY SEATING

PLANE

COMPLIANT TO JEDEC STANDARDS MO-187-AA

Figure 8-Lead Mini Small Outline Package [MSOP] shown in millimeters

Temperature Range −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C

Package Description 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead MSOP 8-Lead MSOP 8-Lead MSOP 8-Lead MSOP 8-Lead MSOP 8-Lead MSOP
2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.

Package Option R-8 R-8 R-8 R-8 R-8 R-8 RM-8 RM-8 RM-8 RM-8 RM-8 RM-8
More datasheets: CD-LAB2 | CD-LAB4 | CD-LAB5 | CD-LAB3 | CD-LAB1 | FQU2N50BTU | 997504 | 991075 | 991073 | 67601493


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Datasheet ID: AD8022AR 517748