2.7 V, 800 A, 80 MHz Rail-to-Rail I/O Amplifiers Data Sheet AD8031/AD8032 FEATURES CONNECTION DIAGRAMS Low power NC 1 8 NC OUT1 1 AD8032 8 +V S IN 2 Supply current 800 A/amplifier 7 +V IN1 2 7 OUT2 S + +IN 3 6 OUT +IN1 3 6 IN2 Fully specified at +2.7 V, +5 V, and 5 V supplies + V 4 5 NC AD8031 S V 4 5 +IN2 S High speed and fast settling on 5 V NC = NO CONNECT 80 MHz, 3 dB bandwidth (G = +1) Figure 1. 8-Lead PDIP (N) and Figure 2. 8-Lead PDIP (N), 30 V/s slew rate SOIC N (R) SOIC N (R), and MSOP (RM) 125 ns settling time to 0.1% AD8031 Rail-to-rail input and output V 1 5 +V OUT S No phase reversal with input 0.5 V beyond supplies V 2 S Input CMVR extends beyond rails by 200 mV + +IN 3 4 IN Output swing to within 20 mV of either rail Low distortion Figure 3. 5-Lead SOT-23 (RJ-5) 62 dB 1 MHz, VO = 2 V p-p 86 dB 100 kHz, VO = 4.6 V p-p Output current: 15 mA Operating on supplies from +2.7 V to +12 V and dual supplies up to 6 V, the AD8031/AD8032 are ideal for a wide range of High grade option: VOS (maximum) = 1.5 mV applications, from battery-operated systems with large bandwidth requirements to high speed systems where component density APPLICATIONS requires lower power dissipation. The AD8031/AD8032 are High speed, battery-operated systems available in 8-lead PDIP and 8-lead SOIC N packages and High component density systems operate over the industrial temperature range of 40C to Portable test instruments +85C. The AD8031A is also available in the space-saving A/D buffers 5-lead SOT-23 package, and the AD8032A is available in an Active filters 8-lead MSOP package. High speed, set-and-demand amplifiers V =4.85Vp-p V =4.65Vp-p IN OUT G=+1 GENERAL DESCRIPTION The AD8031 (single) and AD8032 (dual) single-supply, voltage feedback amplifiers feature high speed performance with 80 MHz of small signal bandwidth, 30 V/s slew rate, and 125 ns settling time. This performance is possible while consuming less than 4.0 mW of power from a single 5 V supply. These features 2s/DIV 2s/DIV increase the operation time of high speed, battery-powered Figure 4. Input V Figure 5. Output V IN OUT systems without compromising dynamic performance. +5V The products have true single-supply capability with rail-to-rail V input and output characteristics and are specified for +2.7 V, +5 V, OUT V IN + 1k 1.7pF and 5 V supplies. The input voltage range can extend to 500 mV +2.5V beyond each rail. The output voltage swings to within 20 mV of each rail providing the maximum output dynamic range. Figure 6. Rail-to-Rail Performance at 100 kHz The AD8031/AD8032 also offer excellent signal quality for only 800 A of supply current per amplifier THD is 62 dBc with a 2 V p-p, 1 MHz output signal, and 86 dBc for a 100 kHz, 4.6 V p-p signal on +5 V supply. The low distortion and fast settling time make them ideal as buffers to single-supply ADCs. Rev. G Document Feedback 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 2014 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 1V/DIV 01056-001 01056-004 1V/DIV 01056-003 01056-006 01056-002 01056-005 +AD8031/AD8032 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Theory of Operation ...................................................................... 13 Applications ....................................................................................... 1 Input Stage Operation ................................................................ 13 General Description ......................................................................... 1 Overdriving the Input Stage...................................................... 13 Connection Diagrams ...................................................................... 1 Output Stage, Open-Loop Gain and Distortion vs. Clearance from Power Supply ..................................................................... 14 Revision History ............................................................................... 2 Output Overdrive Recovery ...................................................... 14 Specifications ..................................................................................... 3 Driving Capacitive Loads .......................................................... 15 +2.7 V Supply ................................................................................ 3 Applications ..................................................................................... 16 +5 V Supply ................................................................................... 4 A 2 MHz Single-Supply, Biquad Band-Pass Filter ................. 16 5 V Supply ................................................................................... 5 High Performance, Single-Supply Line Driver........................... 16 Absolute Maximum Ratings ............................................................ 6 Outline Dimensions ....................................................................... 18 Maximum Power Dissipation ..................................................... 6 Ordering Guide .......................................................................... 20 ESD Caution .................................................................................. 6 Typical Performance Characteristics ............................................. 7 REVISION HISTORY 3/14Rev. F to Rev. G Changes to Second Paragraph of Theory of Operation Section ... 13 Changes to Ordering Guide .......................................................... 20 8/13Rev. E to Rev. F Changed Input Current Noise at f = 100 kHz from 2.4 pA/Hz to 0.4 pA/Hz (Throughout) .......................................................... 3 6/13Rev. D to Rev. E Changes to DC Performance Parameter, Table 1 ......................... 3 Updated Outline Dimensions ....................................................... 19 Changes to Ordering Guide .......................................................... 20 11/08Rev. C to Rev. D Change to Table 3 Column Heading .............................................. 5 Change to Ordering Guide ............................................................ 20 7/06Rev. B to Rev. C Updated Format .................................................................. Universal Updated Outline Dimensions ....................................................... 18 Change to Ordering Guide ............................................................ 20 9/99Rev. A to Rev. B Rev. G Page 2 of 20