High Gain Bandwidth Product, Precision Fast FET Op Amp Data Sheet AD8067 FEATURES CONNECTION DIAGRAM (TOP VIEW) SOT-23-5 (RT-5) FET input amplifier: 0.6 pA input bias current Stable for gains 8 High speed V 5 +V 1 S OUT 54 MHz, 3 dB bandwidth (G = +10) 640 V/s slew rate 2 V S Low noise 6.6 nV/Hz 4 +IN 3 IN 0.6 fA/Hz Low offset voltage (1.0 mV max) Figure 1. Wide supply voltage range: 5 V to 24 V No phase reversal Low input capacitance Single-supply and rail-to-rail output Excellent distortion specs: SFDR 95 dBc 1 MHz High common-mode rejection ratio: 106 dB Low power: 6.5 mA typical supply current Low cost Small packaging: SOT-23-5 APPLICATIONS Photodiode preamplifiers Precision high gain amplifiers High gain, high bandwidth composite amplifiers GENERAL DESCRIPTION The AD8067 FastFET amp is a voltage feedback amplifier with The AD8067 amplifier is available in a SOT-23-5 package and is FET inputs offering wide bandwidth (54 MHz G = +10) and rated to operate over the industrial temperature range of 40C high slew rate (640 V/s). The AD8067 is fabricated in a to +85C. proprietary, dielectrically isolated eXtra Fast Complementary 28 Bipolar process (XFCB) that enables high speed, low power, and G = +20 high performance FET input amplifiers. 26 24 The AD8067 is designed to work in applications that require 22 high speed and low input bias current, such as fast photodiode G = +10 preamplifiers. As required by photodiode applications, the laser 20 trimmed AD8067 has excellent dc voltage offset (1.0 mV max) 18 G = +8 and drift (15 V/C max). 16 The FET input bias current (5 pA max) and low voltage noise 14 (6.6 nV/Hz) also contribute to making it appropriate for precision 12 applications. With a wide supply voltage range (5 V to 24 V) 10 and rail-to-rail output, the AD8067 is well suited for a variety of applications that require wide dynamic range and low distortion. 8 0.1 1 10 100 FREQUENCY MHz Figure 2. Small Signal Frequency Response Rev. 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GAIN dBAD8067 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Resistor Selection for Wideband Operation ............................... 14 Applications ....................................................................................... 1 DC Error Calculations ............................................................... 15 Connection Diagram (Top View) ................................................... 1 Input and Output Overload Behavior ..................................... 15 General Description ......................................................................... 1 Input Protection ......................................................................... 16 Revision History ............................................................................... 2 Capacitive Load Drive ............................................................... 16 Specifications for 5 V ..................................................................... 3 Layout, Grounding, and Bypassing Considerations .............. 16 Specifications for +5 V ..................................................................... 4 Applications ..................................................................................... 18 Specifications for 12 V ................................................................... 5 Wideband Photodiode Preamp ................................................ 18 Absolute Maximum Ratings ............................................................ 6 Using the AD8067 at Gains of Less Than 8 ............................ 19 Maximum Power Dissipation ..................................................... 6 Single-Supply Operation ........................................................... 20 ESD Caution .................................................................................. 6 High Gain, High Bandwidth Composite Amplifier .............. 20 Typical Performance Characteristics ............................................. 7 Outline Dimensions ....................................................................... 22 Test Circuits ..................................................................................... 12 Ordering Guide .......................................................................... 22 Theory of Operation ...................................................................... 13 Basic Frequency Response ........................................................ 13 REVISION HISTORY 4/12Rev. A to Rev. B Changes to Basic Frequency Response Section .......................... 13 Changes to Figure 54 Caption ....................................................... 19 Changes to Figure 55 Caption ....................................................... 20 Updated Outline Dimensions ....................................................... 22 Changes to Ordering Guide .......................................................... 22 5/06Rev. 0 to Rev. A Changes to Figure 51 ...................................................................... 18 Changes to Figure 54 ...................................................................... 19 Changes to Figure 57 ...................................................................... 21 Updated Outline Dimensions ....................................................... 22 Changes to Ordering Guide .......................................................... 22 11/02Revision 0: Initial Version Rev. B Page 2 of 24