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.
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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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: Fax: 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 |
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