a FEATURES Dual Supply 5 V High-Speed Fully Buffered Inputs and Outputs 600 MHz Bandwidth (-3 dB) 200 mV p-p 500 MHz Bandwidth (-3 dB) 2 V p-p 1600 V/s Slew Rate, G = +1 1350 V/s Slew Rate, G = +2 Fast Settling Time: 4 ns Low Supply Current: <30 mA Excellent Video Specifications (RL = 150 ): Gain Flatness of 0.1 dB to 50 MHz 0.01% Differential Gain Error 0.01 Differential Phase Error "All Hostile" Crosstalk -80 dB @ 10 MHz -50 dB @ 100 MHz High "OFF" Isolation of 90 dB @ 10 MHz Low Cost Fast Output Disable Feature 500 MHz, G = +1 and +2 Triple Video Buffers with Disable AD8074/AD8075 FUNCTIONAL BLOCK DIAGRAM AD8074 /AD8075 OE 1 16 VCC 15 VCC DGND 2 IN2 3 G= +1/+2 AGND 4 IN1 5 13 VEE G= +1/+2 VEE 8 12 OUT1 11 VCC AGND 6 IN0 7 14 OUT2 G= +1/+2 10 OUT0 9 VEE APPLICATIONS RGB Buffer in LCD and Plasma Displays RGB Driver Video Routers Table I. Truth Table PRODUCT DESCRIPTION The AD8074/AD8075 are high-speed triple video buffers with G = +1 and +2 respectively. They have a -3 dB full signal bandwidth in excess of 450 MHz, along with slew rates in excess of 1400 V/s. With better than -80 dB of all hostile crosstalk and 90 dB isolation, they are useful in many high-speed applications. The differential gain and differential phase error are 0.01% and 0.01. Gain flatness of 0.1 dB up to 50 MHz makes the AD8074/AD8075 ideal for RGB buffering or driving. They consume less than 30 mA on a 5 V supply. OE OUT0, 1, 2 0 1 IN0, IN1, IN2 High Z Both devices offer a high-speed disable feature that allows the outputs to be put into a high impedance state. This allows the building of larger input arrays while minimizing "OFF" channel output loading. The AD8074/AD8075 are offered in a 16-lead TSSOP package. REV. A 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. 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 (c) Analog Devices, Inc., 2001 AD8074/AD8075-SPECIFICATIONS (T = 25C, V = 5 V, unless otherwise noted.) A Parameter DYNAMIC PERFORMANCE -3 dB Bandwidth (Small Signal) -3 dB Bandwidth (Large Signal) 0.1 dB Bandwidth Slew Rate Settling Time to 0.1% NOISE/DISTORTION PERFORMANCE Differential Gain Differential Phase All Hostile Crosstalk OFF Isolation Voltage Noise DC PERFORMANCE Voltage Gain Error Input Offset Voltage S Conditions Min Typ VIN = 200 mV p-p, CL = 5 pF VIN = 200 mV p-p, RL = 150 VIN = 2 V p-p, CL = 5 pF VIN = 2 V p-p, RL = 150 VIN = 200 mV p-p, CL = 5 pF VIN = 200 mV p-p, RL = 150 2 V Step, RL = 1 k/150 2 V Step, RL = 1 k/150 330/310 250/230 330/300 250/230 600/550 400/400 500/500 350/350 70/65 70/65 1600/1350 4/7.5 MHz MHz MHz MHz MHz MHz V/s ns V = 3.58 MHz, 150 V = 3.58 MHz, 150 V = 10 MHz, RL = 1 k V = 100 MHz, RL = 1 k V = 10 MHz, RL = 150 V = 10 kHz to 100 MHz 0.01 0.01 -80/-74 -50/-44 90 19.5/22 % Degrees dB dB dB nV/Hz No Load 0.1/ 0.2 2.5 3 10 5 TMIN to TMAX Input Offset Drift Input Bias Current INPUT CHARACTERISTICS Input Resistance Input Capacitance Channel Enabled Channel Disabled Input Voltage Range OUTPUT CHARACTERISTICS Output Voltage Swing RL = 1 k +VS - 1.95 -VS + 2.1 +VS - 2.35 -VS + 2.30 RL = 150 Short Circuit Current (Protected) Output Resistance Output Capacitance POWER SUPPLY Operating Range Power Supply Rejection Ratio Quiescent Current Enabled Disabled Disabled 3.5 +PSRR: +VS = +4.5 V to +5.5 V, -VS = -5 V -PSRR: -VS = -4.5 V to -5.5 V, +VS = +5 V All Channels "ON" All Channels "OFF" TMIN to TMAX 4.5 60 56 DIGITAL INPUT Logic "1" Voltage Logic "0" Voltage Logic "1" Input Current Logic "0" Input Current OE Input OE Input OE = 4 V OE = 0.4 V 2.0 OPERATING TEMPERATURE RANGE Temperature Range JA JC Operating (Still Air) Operating (Still Air) Operating -40 Max 0.15/ 0.65 27/40 9.5/10 Unit % mV mV V/C A 10 1.5 1.5 2.8/ 1.4 M pF pF V +VS - 1.8 -VS + 1.8 +VS - 2.2 -VS + 2.2 70 0.5 7.5 2.2 V V V V mA M pF 5.5 74 64 21.5/24 3/4 23/26 30 5.5 0.8 100 1 +85 150.4 27.6 V dB dB mA mA mA V V nA A C C/W C/W Specifications subject to change without notice. -2- REV. A AD8074/AD8075 ABSOLUTE MAXIMUM RATINGS 1 Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.0 V Internal Power Dissipation 2, 3 AD8074/AD8075 16-Lead TSSOP (RU) . . . . . . . . . . . . . 1 W Input Voltage IN0, IN1, IN2 . . . . . . . . . . . . . . . . . . . . . . . . . VEE VIN VCC OE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DGND VIN VCC Output Short Circuit Duration . . . . . . . . . . . . . . . . . . Indefinite3 Storage Temperature Range . . . . . . . . . . . . . . -65C to +150C Lead Temperature Range (Soldering 10 sec) . . . . . . . . . . . 300C ORDERING GUIDE Model AD8074ARU AD8075ARU AD8074-EVAL AD8075-EVAL Temperature Range Package Description Package Option -40C to +85C -40C to +85C 16-Lead Plastic TSSOP 16-Lead Plastic TSSOP Evaluation Board Evaluation Board RU-16 RU-16 PIN CONFIGURATION NOTES 1 Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2 Specification is for device in free air (T A = 25C). 3 16-lead plastic TSSOP; JA = 150.4C/W. Maximum internal power dissipation (P D) should be derated for ambient temperature (T A ) such that PD < (150C - T A)/JA. AD8074 /AD8075 OE 1 16 VCC 15 VCC DGND 2 IN2 3 G= +1/+2 14 OUT2 AGND 4 IN1 5 13 VEE G= +1/+2 12 OUT1 11 VCC AGND 6 IN0 7 G= +1/+2 10 OUT0 9 VEE VEE 8 CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD8074/AD8075 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. MAXIMUM POWER DISSIPATION WARNING! ESD SENSITIVE DEVICE 1.5 TJ = 150C MAXIMUM POWER DISSIPATION - Watts The maximum power that can be safely dissipated by the AD8074/ AD8075 is limited by the associated rise in junction temperature. The maximum safe junction temperature for plastic encapsulated devices is determined by the glass transition temperature of the plastic, approximately 150C. Temporarily exceeding this limit may cause a shift in parametric performance due to a change in the stresses exerted on the die by the package. Exceeding a junction temperature of 175C for an extended period can result in device failure. While the AD8074/AD8075 is internally short circuit protected, this may not be sufficient to guarantee that the maximum junction temperature (150C) is not exceeded under all conditions. To ensure proper operation, it is necessary to observe the maximum power derating curves shown in Figure 1. 1.0 0.5 0 -50 -30 -10 0 10 30 50 70 90 AMBIENT TEMPERATURE - C Figure 1. Maximum Power Dissipation vs. Temperature REV. A -3-