AD8051: Low Cost, High Speed, Single, Rail-to-Rail Amplifier - Analog Devices - #1

Text version of the page

Low Cost, High Speed, Rail-to-Rail Amplifiers AD8051/AD8052/AD8054 Rev. J 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. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2009 Analog Devices, Inc. All rights reserved. FEATURES High speed and fast settling on 5 V 110 MHz, -3 dB bandwidth (G = +1) (AD8051/AD8052) 150 MHz, -3 dB bandwidth (G = +1) (AD8054) 145 V/ìs slew rate 50 ns settling time to 0.1% Single-supply operation Output swings to within 25 mV of either rail Input voltage range: -0.2 V to +4 V; VS = 5 V Video specifications (G = +2) 0.1 dB gain flatness: 20 MHz; RL = 150 Ù Differential gain/phase: 0.03%/0.03° Low distortion -80 dBc total harmonic @ 1 MHz, RL = 100 Ù Outstanding load drive capability Drives 45 mA, 0.5 V from supply rails (AD8051/AD8052) Drives 50 pF capacitive load (G = +1) (AD8051/AD8052) Low power: 2.75 mA/amplifier (AD8054) Low power: 4.4 mA/amplifier (AD8051/AD8052) APPLICATIONS Active filters Analog-to-digital drivers Clock buffer Consumer video Professional cameras CCD imaging systems CD/DVD ROMs PIN CONNECTIONS (TOP VIEWS) 8 7 6 5 1 2 3 4 NC –IN +IN NC NC AD8051 NC = NO CONNECT +VS VOUT –VS 01062-001 1 2 3 5 4 –IN +IN AD8051 + – VOU +VS T –VS 01062-002 Figure 1. SOIC-8 (R) Figure 2. SOT-23-5 (RJ) 8 7 6 5 1 2 3 4 + – + – OUT1 –IN1 +IN1 OUT –IN2 AD8052 +IN2 +VS –VS 01062-003 V+ +IN B OUT B OUT D +IN D V– +IN C OUT C AD8054 +IN A OUT A 1 2 3 4 5 6 7 14 13 12 11 10 9 8 –IN A –IN B –IN D –IN C 01062-004 Figure 3. SOIC (R-8) and MSOP (RM-8) Figure 4. SOIC (R-14) and TSSOP (RU-14) FREQUENCY (MHz) 4.5 0 50 3.0 1.5 1.0 0.5 4.0 3.5 2.0 2.5 5.0 PEAK-TO-PEAK OUTPUT VOLTAGE SWING (THD 0.5%) (V) 0.1 1 10 VS = 5V G = –1 RF = 2kÙ RL = 2kÙ 01062-005 Figure 5. Low Distortion Rail-to-Rail Output Swing GENERAL DESCRIPTION The AD8051 (single), AD8052 (dual), and AD8054 (quad) are low cost, high speed, voltage feedback amplifiers. The amplifiers operate on +3 V, +5 V, or ±5 V supplies at low supply current. They have true single-supply capability with an input voltage range extending 200 mV below the negative rail and within 1 V of the positive rail. Despite their low cost, the AD8051/AD8052/AD8054 provide excellent overall performance and versatility. The output voltage swings to within 25 mV of each rail, providing maximum output dynamic range with excellent overdrive recovery. The AD8051/AD8052/AD8054 are well suited for video electronics, cameras, video switchers, or any high speed portable equipment. Low distortion and fast settling make them ideal for active filter applications. The AD8051/AD8052 in the 8-lead SOIC, the AD8052 in the MSOP, the AD8054 in the 14-lead SOIC, and the 14-lead TSSOP packages are available in the extended temperature range of -40°C to +125°C.