Low Distortion, High Speed Rail-to-Rail Input/Output Amplifiers AD8027/AD8028 CONNECTION DIAGRAMS FEATURES High speed AD8027 AD8027 SOIC-8 SOT-23-6 190 MHz, 3 dB bandwidth (G = +1) (R) (RT) 100 V/s slew rate NC 1 8 DISABLE/SELECT V 1 6 +V OUT S IN 2 7 +V S Low distortion +IN 3 6 V V 2 OUT 5 DISABLE/SELECT S + 120 dBc 1 MHz SFDR V 4 5 NC S +IN 3 4 IN 80 dBc 5 MHz SFDR NC = NO CONNECT Selectable input crossover threshold AD8028 AD8028 SOIC-8 MSOP-10 Low noise (R) (RM) 4.3 nV/Hz V 1 8 +V V 1 10 +V OUTA S OUTA S IN A 2 7 V IN A 2 9 V OUTB OUTB 1.6 pA/Hz + +IN A 3 + 6 IN B +IN A 3 8 IN B Low offset voltage: 900 V max V 4 5 +IN B V 4 7 +IN B S S DISABLE/SELECT A 5 6 DISABLE/SELECT B Low power: 6.5 mA/amplifier supply current 03327-B-001 Power-down mode Figure 1. Connection Diagrams (Top View) No phase reversal: VIN > VS + 200 mV Wide supply range: 2.7 V to 12 V With their wide supply voltage range (2.7 V to 12 V) and wide Small packaging: SOIC-8, SOT-23-6, MSOP-10 bandwidth (190 MHz), the AD8027/AD8028 amplifiers are designed to work in a variety of applications where speed and APPLICATIONS performance are needed on low supply voltages. The high per- Filters formance of the AD8027/AD8028 is achieved with a quiescent ADC drivers current of only 6.5 mA/amplifier typical. The AD8027/AD8028 Level shifting have a shutdown mode that is controlled via the SELECT pin. Buffering Professional video The AD8027/AD8028 are available in SOIC-8, MSOP-10, and Low voltage instrumentation SOT-23-6 packages. They are rated to work over the industrial temperature range of 40C to +125C. GENERAL DESCRIPTION 1 20 The AD8027/AD8028 are high speed amplifiers with rail-to- G = +1 FREQUENCY = 100kHz rail input and output that operate on low supply voltages and R = 1k L 40 are optimized for high performance and wide dynamic signal range. The AD8027/AD8028 have low noise (4.3 nV/Hz, 60 1.6 pA/Hz) and low distortion (120 dBc at 1 MHz). In appli- V = +5V V = +3V S S cations that use a fraction of, or the entire input dynamic range V = 5V S 80 and require low distortion, the AD8027/AD8028 are ideal choices. 100 Many rail-to-rail input amplifiers have an input stage that switches from one differential pair to another as the input signal 120 crosses a threshold voltage, which causes distortion. The AD8027/AD8028 have a unique feature that allows the user to 140 0123456789 10 select the input crossover threshold voltage through the OUTPUT VOLTAGE (V p-p) 03327-A-063 SELECT pin. This feature controls the voltage at which the Figure 2. SFDR vs. Output Amplitude complementary transistor input pairs switch. The AD8027/ AD8028 also have intrinsically low crossover distortion. 1 Protected by U.S. patent numbers 6,486,737B1 6,518,842B1 Rev. C 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. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Specifications subject to change without notice. No license is granted by implication Tel: 781.329.4700 www.analog.com or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 2005 Analog Devices, Inc. All rights reserved. SFDR (dB) + + IMPORTANT LINKS for the AD8027 8028* Last content update 08/18/2013 09:13 pm DOCUMENTATION PARAMETRIC SELECTION TABLES AN-649: Using the Analog Devices Active Filter Design Tool Find Similar Products By Operating Parameters for the AD8027 AN-581: Biasing and Decoupling Op Amps in Single Supply Find Similar Products By Operating Parameters for the AD8028 Applications High Speed Amplifiers Selection Table AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed Systems EVALUATION KITS & SYMBOLS & FOOTPRINTS MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps View the Evaluation Boards and Kits page for the AD8027 MT-059: Compensating for the Effects of Input Capacitance on VFB View the Evaluation Boards and Kits page for the AD8028 and CFB Op Amps Used in Current-to-Voltage Converters Symbols and Footprints for the AD8027 MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps Symbols and Footprints for the AD8028 MT-056: High Speed Voltage Feedback Op Amps MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR MT-052: Op Amp Noise Figure: Dont Be Mislead DESIGN COLLABORATION COMMUNITY MT-050: Op Amp Total Output Noise Calculations for Second-Order System MT-049: Op Amp Total Output Noise Calculations for Single-Pole System Collaborate Online with the ADI support team and other designers about select ADI products. MT-047: Op Amp Noise MT-033: Voltage Feedback Op Amp Gain and Bandwidth Follow us on Twitter: www.twitter.com/ADI News Like us on Facebook: www.facebook.com/AnalogDevicesInc MT-032: Ideal Voltage Feedback (VFB) Op Amp A Stress-Free Method for Choosing High-Speed Op Amps FOR THE AD8027 UG-127: Universal Evaluation Board for High Speed Op Amps in DESIGN SUPPORT SOT-23-5/SOT-23-6 Packages Submit your support request here: UG-101: Evaluation Board User Guide Linear and Data Converters Embedded Processing and DSP Op Amps Increasingly Swing Rail-to-Rail Low-Cost Video Multiplexing Using High-Speed Amplifiers Telephone our Customer Interaction Centers toll free: Americas: 1-800-262-5643 FOR THE AD8028 Europe: 00800-266-822-82 China: 4006-100-006 AD8028-KGD-CHIP: Low Distortion, High Speed Rail-to-Rail India: 1800-419-0108 Input/Output Amplifier Data Sheet Russia: 8-800-555-45-90 UG-128: Universal Evaluation Board for Dual High Speed Op Amps in SOIC Packages Quality and Reliability Lead(Pb)-Free Data DESIGN TOOLS, MODELS, DRIVERS & SOFTWARE dBm/dBu/dBv Calculator SAMPLE & BUY Power Dissipation vs Die Temp AD8027 Analog Filter Wizard 2.0 AD8028 ADIsimOpAmp View Price & Packaging Request Evaluation Board OpAmp Stability Request Samples Check Inventory & Purchase AD8027 SPICE Macro-Model Find Local Distributors AD8028 SPICE Macro-Model * This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to the content on this page (labeled Important Links ) does not constitute a change to the revision number of the product data sheet. This content may be frequently modified. Powered by TCPDF (www.tcpdf.org)