AD8041AN

160 MHz Rail-to-Rail Amplifier with Disable AD8041 FEATURES Fully Specified for +3 V, +5 V, and ⴞ5 V Supplies Output Swings Rail to Rail Input Voltage Range Extends 200 mV Below Ground No Phase Reversal with Inputs 1 V Beyond Supplies Disable/Power-Down Capability Low Power of 5.2 mA (26 mW on 5 V) High Speed and Fast Settling on 5 V: 160 MHz –3 dB Bandwidth (G = +1) 160 V/␮s Slew Rate 30 ns Settling Time to 0.1% Good Video Specifications (RL = 150 ⍀, G = +2) Gain Flatness of 0.1 dB to 30 MHz 0.03% Differential Gain Error 0.03ⴗ Differential Phase Error Low Distortion –69 dBc Worst Harmonic @ 10 MHz Outstanding Load Drive Capability Drives 50 mA 0.5 V from Supply Rails Cap Load Drive of 45 pF APPLICATIONS Power Sensitive High Speed Systems Video Switchers Distribution Amplifiers A/D Drivers Professional Cameras CCD Imaging Systems Ultrasound Equipment (Multichannel) Single-Supply Multiplexer PRODUCT DESCRIPTION The AD8041 is a low power voltage feedback, high speed amplifier designed to operate on +3 V, +5 V, or ± 5 V supplies. It has true single-supply capability with an input voltage range extending 200 mV below the negative rail and within 1 V of the positive rail. CONNECTION DIAGRAM 8-Lead PDIP, CERDIP and SOIC 8 DISABLE NC 1 7 ⴙVS –INPUT 2 ⴙINPUT 3 –VS 4 6 OUTPUT AD8041 (Top View) 5 NC NC = NO CONNECT The output voltage swing extends to within 50 mV of each rail, providing the maximum output dynamic range. Additionally, it features gain flatness of 0.1 dB to 30 MHz while offering differential gain and phase error of 0.03% and 0.03° on a single 5 V supply. This makes the AD8041 ideal for professional video electronics such as cameras, video switchers, or any high speed portable equipment. The AD8041’s low distortion and fast settling make it ideal for buffering high speed A-to-D converters. The AD8041 has a high speed disable feature useful for multiplexing or for reducing power consumption (1.5 mA). The disable logic interface is compatible with CMOS or opencollector logic. The AD8041 offers a low power supply current of 5.8 mA maximum and can run on a single 3 V power supply. These features are ideally suited for portable and batterypowered applications where size and power are critical. The wide bandwidth of 160 MHz along with 160 V/µs of slew rate on a single 5 V supply make the AD8041 useful in many general-purpose high speed applications where dual power supplies of up to ± 6 V and single supplies from 3 V to 12 V are needed. The AD8041 is available in 8-lead PDIP and SOIC over the industrial temperature range of –40°C to +85°C. 2 VS = 5V G = +2 RF = 400⍀ 1 NORMALIZED GAIN (dB) 0 5V 2.5V –1 –2 –3 –4 –5 –6 –7 0V 1V 200ns –8 0 Figure 1. Output Swing: G = –1, VS = 5 V 20 40 60 FREQUENCY (MHz) 80 100 Figure 2. Frequency Response: G = +2, VS = 5 V 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 that may result from its use. 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 companies. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved. AD8041–SPECIFICATIONS (@ T = 25ⴗC, V = 5 V, R = 2 k⍀ to 2.5 V, unless otherwise noted.) A S L Parameter Conditions Min DYNAMIC PERFORMANCE –3 dB Small Signal Bandwidth, VO < 0.5 V p-p Bandwidth for 0.1 dB Flatness Slew Rate Full Power Response Settling Time to 0.1% Settling Time to 0.01% G = +1 G = +2, RL = 150 Ω G = –1, VO = 2 V Step VO = 2 V p-p G = –1, VO = 2 V Step 130 NOISE/DISTORTION PERFORMANCE Total Harmonic Distortion Input Voltage Noise Input Current Noise Differential Gain Error (NTSC) Differential Phase Error (NTSC) 130 fC = 5 MHz, VO = 2 V p-p, G = +2, RL = 1 kΩ f = 10 kHz f = 10 kHz G = +2, RL = 150 Ω to 2.5 V G = +2, RL = 75 Ω to 2.5 V G = +2, RL = 150 Ω to 2.5 V G = +2, RL = 75 Ω to 2.5 V DC PERFORMANCE Input Offset Voltage AD8041A Typ MHz MHz V/µs MHz ns ns –72 16 600 0.03 0.01 0.03 0.19 dB nV/√Hz fA/√Hz % % Degrees Degrees 2 10 1.2 TMIN to TMAX Input Offset Current Open-Loop Gain INPUT CHARACTERISTICS Input Resistance Input Capacitance Input Common-Mode Voltage Range Common-Mode Rejection Ratio OUTPUT CHARACTERISTICS Output Voltage Swing: RL = 10 kΩ Output Voltage Swing: RL = 1 kΩ Output Voltage Swing: RL = 50 Ω Output Current Short-Circuit Current Capacitive Load Drive POWER SUPPLY Operating Range Quiescent Current Quiescent Current (Disabled) Power Supply Rejection Ratio DISABLE CHARACTERISTICS Turn-Off Time Turn-On Time Off Isolation (Pin 8 Tied to –VS) Off Voltage (Device Disabled) On Voltage (Device Enabled) RL = 1 kΩ TMIN to TMAX 86 VCM = 0 V to 3.5 V 74 0.35 to 4.75 0.4 to 4.4 VOUT = 0.5 V to 4.5 V Sourcing Sinking G = +1 0.2 95 90 VO = 2 V p-p @ 10 MHz, G = +2 RF = RL = 2 kΩ RF = RL = 2 kΩ RL = 100 Ω, f = 5 MHz, G = +2, RF = 1 kΩ 72 7 8 3.2 3.5 0.5 mV mV µV/°C µA µA µA dB dB 160 1.8 –0.2 to +4 80 kΩ pF V dB 0.05 to 4.95 0.1 to 4.9 0.3 to 4.5 50 90 150 45 V V V mA mA mA pF 3 VS = 0, +5 V, ± 1 V Unit 160 30 160 24 35 55 TMIN to TMAX Offset Drift Input Bias Current Max 5.2 1.4 80 120 230 70