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| ZXFBF08 8 Channel Buffer Device DEVICE DESCRIPTION The ZXFBF08 is a low cost, high slew rate, octal buffer amplifier. Built using the Zetex CA700 technology, this buffer has a small signal bandwidth of greater than 100MHz and a 1 volt pk-pk bandwidth of greater than 20 MHz. Each channel draws only 1.9mA. The device operates from a 5 volt supply, which makes it ideal in a majority of applications. This space saving buffer may be used in a wide variety of applications such as, video switching matrix, multi-channel instrumentation equipment, and A/D input buffer, etc. FEATURES AND BENEFITS * * * * * * 8 Buffers per package 100MHz bandwidth Low cost Low supply current (1.9mA per buffer) No thermal runaway 20 pin SOIC package APPLICATIONS * * * * Video Switching Matrix input buffer Instrumentation Multi-channel A/D input buffer Multi-isolation buffer PART NUMBER ZXFBF08W20 PACKAGE SOIC20W PART MARK ZXFBF08 ORDERING INFORMATION PART NUMBER ZXFBF08W20TC CONTAINER Reel 13" INCREMENT 1000 RELATED PRODUCTS ZXFBF04 4 Channel Buffer ZXFBF05 4 Channel Buffer with high capacitance drive CONNECTION DIAGRAM ZXFBF25 4 Channel Buffer with output enable OUT1 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 OUT8 IN1 VOUT2 IN2 OUT3 IN3 VOUT4 IN4 IN8 V+ OUT7 IN7 OUT6 IN6 V+ OUT5 IN5 ISSUE 2 - OCTOBER 2000 1 ZXFBF08 ABSOLUTE MAXIMUM RATINGS Voltage on any pin Operating temperature range Storage Temperature 20V (relative to V-) 0 to 70C (de-rated for -40 to 85C) -55 to 125C ELECTRICAL CHARACTERISTICS Test Conditions: Temperature =25C, V+ = 5.00, V- = -5.00V, RL = 1k, CL = 10pF Parameter Offset Voltage Offset Voltage Drift Supply Current Input Bias Current Output Voltage DC Gain DC Gain Sink Current Source Current Input Resistance Output Resistance Bandwidth Slew Rate Voltage Noise Differential Gain NTSC Differential Phase NTSC Differential Gain PAL Differential Phase PAL Channel Isolation 10 - 100 kHz F = 3.58MHz, V in = 0.286Vp-p, DC V in = 0 to 0.714V 20mVp-p, 1.0Vp-p Conditions V in = 0V V in = 0V All inputs = 0V V in = 0V R L = 1k R L = 10k V in = 0.5V, R L = 1k V offset = 0.0V V in = 0.5V, R L = 1k V offset = 0.25V V in = 0V, V out =0.5V V in = 0V, V out =-0.5V 0.95 0.95 1.0 6.0 10 5 0.1 Min. -15 Typical 20 15 0.5 1 4 0.98 0.99 2.2 9.0 20 10 100 20 40 15 0.1 0.15 0.1 F = 4.43MHz, V in = 0.286Vp-p, DC V in = 0 to 0.714V V in = 370mVp-p, RL = 1k F = 4 MHz 0.15 -60 1.00 1.00 5.0 12.0 100 15 25 2.0 Max. 15 Units mV V/C mA A V V/V V/V mA mA M MHz V/s nV/ Hz % Degrees % Degrees dB NOTES Test circuit for measuring channel isolation. Channel Isolation = 20 x LOG10 (Vout / Vin) dB Vin=370mV pk-pk, F = 4 MHz Vout RL = 1k ISSUE 2 - OCTOBER 2000 2 ZXFBF08 PIN DESCRIPTION OUT1 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 OUT8 IN1 VOUT2 IN2 OUT3 IN3 VOUT4 IN4 IN8 V+ OUT7 IN7 OUT6 IN6 V+ OUT5 IN5 OUT 1,2,3,4,5,6,7,8 IN 1,2,3,4,5,6,7,8 V+ V- Buffer outputs. Buffer Inputs. Positive supply pin, +5 volts. Negative supply pin, -5 APPLICATION CIRCUIT DC Coupled Configuration V+ 100nF _ Vout Vin + 1/8 ZXFBF08 100nF RL V- ISSUE 2 - OCTOBER 2000 3 ZXFBF08 APPLICATION CIRCUIT AC Coupled Configuration V+ 100nF _ C Vin RS 100nF Vout + 1/8 ZXFBF08 RL VNOTE. Rs: Source Resistor, provides DC bias for buffer input. Rs 10k Both 100nF decoupling capacitors should be situated close to device supply pins. TYPICAL CHARACTERISTICS 0.991 -40 V+ = 5V RL = 1k DC Gain (Vin/Vout) Attenation (dB) -25 0 25 50 75 100 0.990 0.989 0.988 0.987 0.986 -50 -50 -60 -70 -80 -90 -100 0.1 1 10 Temperature (C) Frequency (MHz) DC Differential Gain v Temperature Channel Isolation v Frequency ISSUE 2 - OCTOBER 2000 4 ZXFBF08 TYPICAL CHARACTERISTICS Test Conditions:V+=5V, Temperature=25C. ISSUE 2 - OCTOBER 2000 5 ZXFBF08 PACKAGING INFORMATION SOIC 20 Lead DIM Millimetres Min Max 12.85 - - 0.46 7.60 2.64 0.30 7 0.28 10.51 8 1.01 0.89 Inches Min 0.498 0.05 0.026 0.014 0.291 0.096 0.004 0 0.009 0.398 0 0.02 0.025 7BSC Max 0.506 - - 0.018 0.299 0.104 0.012 7 0.011 0.414 8 0.04 0.035 A B C A B 12.65 1.27 0.66 0.36 7.40 2.44 0.10 0 0.23 10.11 0 0.51 0.63 7BSC R E C a D 0.510.02 @450.51 D E F PIN No.1 G Zetex GmbH Streitfeldstrae 19 D-81673 Munchen Germany Telefon: (49) 89 45 49 49 0 Fax: (49) 89 45 49 49 49 This publication is issued to provide outline information only which (unless agreed by the Company in writing) may not be used, applied or reproduced for any purpose or form part of any order or contract or be regarded as a representation relating to the products or services concerned. The Company reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service. ISSUE 1 - APRIL 2000 F K L G H I J K L R a Zetex plc. Fields New Road, Chadderton, Oldham, OL9-8NP, United Kingdom. Telephone: (44)161 622 4422 (Sales), (44)161 622 4444 (General Enquiries) Fax: (44)161 622 4420 Zetex Inc. 47 Mall Drive, Unit 4 Commack NY 11725 USA Telephone: (631) 543-7100 Fax: (631) 864-7630 Zetex (Asia) Ltd. 3701-04 Metroplaza, Tower 1 Hing Fong Road, Kwai Fong, Hong Kong Telephone:(852) 26100 611 Fax: (852) 24250 494 These are supported by agents and distributors in major countries world-wide (c) Zetex plc 2000 Internet:http://www.zetex.com 8 |
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