Low Distortion a 1.0 GHz Differential Amplifier AD8350 FEATURES FUNCTIONAL BLOCK DIAGRAM High Dynamic Range 8-Lead SOIC and SOIC Packages (with Enable) Output IP3: +28 dBm: Re 50 250 MHz Low Noise Figure: 5.9 dB 250 MHz IN+ 1 8 IN Two Gain Versions: AD8350-15: 15 dB ENBL 2 + 7 GND AD8350-20: 20 dB V GND 3 6 CC 3 dB Bandwidth: 1.0 GHz OUT+ 4 5 OUT Single Supply Operation: 5 V to 10 V AD8350 Supply Current: 28 mA Input/Output Impedance: 200 Single-Ended or Differential Input Drive 8-Lead SOIC Package and 8-Lead microSOIC Package APPLICATIONS Cellular Base Stations Communications Receivers RF/IF Gain Block Differential A-to-D Driver SAW Filter Interface Single-Ended-to-Differential Conversion High Performance Video High Speed Data Transmission PRODUCT DESCRIPTION The amplifier can be operated down to 5 V with an OIP3 of The AD8350 series are high performance fully-differential +28 dBm at 250 MHz and slightly reduced distortion perfor- amplifiers useful in RF and IF circuits up to 1000 MHz. The mance. The wide bandwidth, high dynamic range and temperature amplifier has excellent noise figure of 5.9 dB at 250 MHz. It stability make this product ideal for the various RF and IF offers a high output third order intercept (OIP3) of +28 dBm frequencies required in cellular, CATV, broadband, instrumen- at 250 MHz. Gain versions of 15 dB and 20 dB are offered. tation and other applications. The AD8350 is designed to meet the demanding performance The AD8350 is offered in an 8-lead single SOIC package and requirements of communications transceiver applications. It SOIC package. It operates from 5 V and 10 V power supplies, enables a high dynamic range differential signal chain, with drawing 28 mA typical. The AD8350 offers a power enable func- exceptional linearity and increased common-mode rejection. tion for power-sensitive applications. The AD8350 is fabricated The device can be used as a general purpose gain block, an using Analog Devices proprietary high speed complementary A-to-D driver, and high speed data interface driver, among bipolar process. The device is available in the industrial (40C to other functions. The AD8350 input can also be used as a single- +85C) temperature range. ended-to-differential converter. Rev. C Document Feedback 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. Tel: 781.329.4700 20012016 Analog Devices, Inc. All rights reserved. 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. Technical Support www.analog.com ( 25 C, V = 5 V, G = 15 dB, unless otherwise noted. All specifications refer to S differential inputs and differential outputs unless noted.) AD8350SPECIFICATIONS Parameter Conditions Min Typ Max Unit DYNAMIC PERFORMANCE 3 dB Bandwidth V = 5 V, V = 1 V p-p 0.9 GHz S OUT V = 10 V, V = 1 V p-p 1.1 GHz S OUT Bandwidth for 0.1 dB Flatness V = 5 V, V = 1 V p-p 90 MHz S OUT V = 10 V, V = 1 V p-p 90 MHz S OUT Slew Rate V = 1 V p-p 2000 V/s OUT Settling Time 0.1%, V = 1 V p-p 10 ns OUT 1 Gain (S21) V = 5 V, f = 50 MHz 14 15 16 dB S Gain Supply Sensitivity V = 5 V to 10 V, f = 50 MHz 0.003 dB/V S Gain Temperature Sensitivity T to T 0.002 dB/C MIN MAX 1 Isolation (S12) f = 50 MHz 18 dB NOISE/HARMONIC PERFORMANCE 50 MHz Signal Second Harmonic V = 5 V, V = 1 V p-p 66 dBc S OUT V = 10 V, V = 1 V p-p 67 dBc S OUT Third Harmonic V = 5 V, V = 1 V p-p 65 dBc S OUT V = 10 V, V = 1 V p-p 70 dBc S OUT 2 Output Second Order Intercept V = 5 V 58 dBm S V = 10 V 58 dBm S 2 Output Third Order Intercept V = 5 V 28 dBm S V = 10 V 29 dBm S 250 MHz Signal Second Harmonic V = 5 V, V = 1 V p-p 48 dBc S OUT V = 10 V, V = 1 V p-p 49 dBc S OUT Third Harmonic V = 5 V, V = 1 V p-p 52 dBc S OUT V = 10 V, V = 1 V p-p 61 dBc S OUT 2 Output Second Order Intercept V = 5 V 39 dBm S V = 10 V 40 dBm S 2 Output Third Order Intercept V = 5 V 24 dBm S V = 10 V 28 dBm S 2 1 dB Compression Point (RTI) V = 5 V 2 dBm S V = 10 V 5 dBm S Voltage Noise (RTI) f = 150 MHz 1.7 nV/Hz Noise Figure f = 150 MHz 6.8 dB INPUT/OUTPUT CHARACTERISTICS Differential Offset Voltage (RTI) V V 1mV OUT+ OUT Differential Offset Drift T to T 0.02 mV/C MIN MAX Input Bias Current 15 A Input Resistance Real 200 CMRR f = 50 MHz 67 dB Output Resistance Real 200 POWER SUPPLY Operating Range 4 11.0 V Quiescent Current Powered Up, V = 5 V 25 28 32 mA S Powered Down, V = 5 V 3 3.8 5.5 mA S Powered Up, V = 10 V 27 30 34 mA S Powered Down, V = 10 V 3 4 6.5 mA S Power-Up/Down Switching 15 ns Power Supply Rejection Ratio f = 50 MHz, V = 1 V p-p 58 dB S OPERATING TEMPERATURE RANGE 40 +85 C NOTES 1 See Tables IIIII for complete list of S-Parameters. 2 Re: 50 . Specifications subject to change without notice. 2 REV. C