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AD8031A Scheda tecnica(PDF) 1 Page - Analog Devices |
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AD8031A Scheda tecnica(HTML) 1 Page - Analog Devices |
1 / 16 page REV. B 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a 2.7 V, 800 A, 80 MHz Rail-to-Rail I/O Amplifiers CONNECTION DIAGRAMS AD8031/AD8032 FEATURES Low Power Supply Current 800 A/Amplifier Fully Specified at +2.7 V, +5 V and 5 V Supplies High Speed and Fast Settling on +5 V 80 MHz –3 dB Bandwidth (G = +1) 30 V/ s Slew Rate 125 ns Settling Time to 0.1% Rail-to-Rail Input and Output No Phase Reversal with Input 0.5 V Beyond Supplies Input CMVR Extends Beyond Rails by 200 mV Output Swing to Within 20 mV of Either Rail Low Distortion –62 dB @ 1 MHz, VO = 2 V p-p –86 dB @ 100 kHz, VO = 4.6 V p-p Output Current: 15 mA High Grade Option VOS (max) = 1.5 mV APPLICATIONS High-Speed Battery-Operated Systems High Component Density Systems Portable Test Instruments A/D Buffer Active Filters High-Speed Set-and-Demand Amplifier One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1999 8-Lead Plastic DIP (N), SOIC (R) and SOIC (RM) Packages 1 2 3 4 8 7 6 5 AD8032 OUT1 –IN1 +IN1 –VS +IN2 –IN2 +VS OUT2 8-Lead Plastic DIP (N) and SOIC (R) Packages 1 2 3 4 8 7 6 5 AD8031 NC –IN +IN –VS NC = NO CONNECT NC OUT +VS NC 5-Lead Plastic Surface Mount Package SOT-23-5 (RT-5) +IN +VS –VS AD8031 1 2 3 5 4 –IN VOUT (Not to Scale) 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/ µs 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 increase the operation time of high speed battery-powered systems without compromising dynamic performance. The products have true single supply capability with rail-to-rail input and output characteristics and are specified for +2.7 V, +5 V and ±5 V supplies. The input voltage range can extend to 500 mV beyond each rail. The output voltage swings to within 20 mV of each rail providing the maximum output dynamic range. The AD8031/AD8032 also offer excellent signal quality for only 800 µA 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, A-to-D converters. 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 applications, from battery-operated systems with large bandwidth requirements to high-speed systems where component density requires lower power dissipation. The AD8031/AD8032 are available in 8-lead plastic DIP and SOIC packages and will operate over the indus- trial temperature range of –40 °C to +85°C. The AD8031A is also available in the space-saving 5-lead SOT-23-5 package and the AD8032A is available in AN 8-lead µSOIC package. 2 s/Div 2 s/Div VIN +5V 1k 1.7pF +2.5V VOUT Circuit Diagram Figure 1. Rail-to-Rail Performance at 100 kHz Input VIN Output VOUT |
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