High-Speed, Low-Power a Dual Operational Amplifier AD826 FEATURES CONNECTION DIAGRAM 8-Lead Plastic Mini-DIP and SO Package High Speed: 50 MHz Unity Gain Bandwidth 350 V/ s Slew Rate 70 ns Settling Time to 0.01% Low Power: OUT1 1 8 V+ 7.5 mA Max Power Supply Current Per Amp IN1 2 7 OUT2 Easy to Use: Drives Unlimited Capacitive Loads +IN1 3 6 IN2 50 mA Min Output Current Per Amplifier Specified for +5 V, 5 V and 15 V Operation V 4 5 +IN2 AD826 2.0 V p-p Output Swing into a 150 Load (V = +5 V) S Good Video Performance Differential Gain & Phase Error of 0.07% & 0.11 Excellent DC Performance: The AD826 features high output current drive capability of 2.0 mV Max Input Offset Voltage 50 mA min per amp, and is able to drive unlimited capacitive loads. With a low power supply current of 15 mA max for both APPLICATIONS amplifiers, the AD826 is a true general purpose operational Unity Gain ADC/DAC Buffer amplifier. Cable Drivers 8- and 10-Bit Data Acquisition Systems The AD826 is ideal for power sensitive applications such as video Video Line Driver cameras and portable instrumentation. The AD826 can operate Active Filters from a single +5 V supply, while still achieving 25 MHz of band- width. Furthermore the AD826 is fully specified from a single PRODUCT DESCRIPTION +5 V to 15 V power supplies. The AD826 is a dual, high speed voltage feedback op amp. It The AD826 excels as an ADC/DAC buffer or active filter in is ideal for use in applications which require unity gain stability data acquisition systems and achieves a settling time of 70 ns and high output drive capability, such as buffering and cable to 0.01%, with a low input offset voltage of 2 mV max. The driving. The 50 MHz bandwidth and 350 V/ s slew rate make AD826 is available in small 8-lead plastic mini-DIP and SO the AD826 useful in many high speed applications including: packages. video, CATV, copiers, LCDs, image scanners and fax machines. 1k V S 500ns 5V 3.3 F 100 90 C = 100pF L 0.01 F V IN 1k HP PULSE 2 GENERATOR TEKTRONIX TEKTRONIX 1/2 1 50 P6201 FET 7A24 FET AD826 V OUT PROBE PREAMP 3 10 C = 1000pF L 0.01 F 0% C L 5V 3.3 F V S Driving a Large Capacitive Load REV. C Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. use, nor for any infringements of patents or other rights of third parties Tel: 781/329-4700 www.analog.com which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: Analog Devices, Inc., ( T = +25 C, unless otherwise noted) AD826SPECIFICATIONS A Parameter Conditions V Min Typ Max Unit S DYNAMIC PERFORMANCE Unity Gain Bandwidth 5 V 30 35 MHz 15 V 45 50 MHz 0, +5 V 25 29 MHz Bandwidth for 0.1 dB Flatness Gain = +1 5 V 10 20 MHz 15 V 25 55 MHz 0, +5 V 10 20 MHz 1 Full Power Bandwidth V = 5 V p-p OUT R = 500 5 V 15.9 MHz LOAD V = 20 V p-p OUT R = 1 k 15 V 5.6 MHz LOAD Slew Rate R = 1 k 5 V 200 250 V/ s LOAD Gain = 1 15 V 300 350 V/ s 0, +5 V 150 200 V/ s Settling Time to 0.1% 2.5 V to +2.5 V 5 V 45 ns 0 V10 V Step, A = 1 15 V 45 ns V to 0.01% 2.5 V to +2.5 V 5 V 70 ns 0 V10 V Step, A = 1 15 V 70 ns V NOISE/HARMONIC PERFORMANCE Total Harmonic Distortion F = 1 MHz 15 V 78 dB C Input Voltage Noise f = 10 kHz 5 V, 15 V 15 nV/Hz Input Current Noise f = 10 kHz 5 V, 15 V 1.5 pA/Hz Differential Gain Error NTSC 15 V 0.07 0.1 % (R1 = 150 ) Gain = +2 5 V 0.12 0.15 % 0, +5 V 0.15 % Differential Phase Error NTSC 15 V 0.11 0.15 Degrees (R1 = 150 ) Gain = +2 5 V 0.12 0.15 Degrees 0, +5 V 0.15 Degrees DC PERFORMANCE Input Offset Voltage 5 V to 15 V 0.5 2 mV T to T 3mV MIN MAX Offset Drift 10 V/C Input Bias Current 5 V, 15 V 3.3 6.6 A T 10 A MIN T 4.4 A MAX Input Offset Current 5 V, 15 V 25 300 nA T to T 500 nA MIN MAX Offset Current Drift 0.3 nA/C Open-Loop Gain V = 2.5 V 5 V OUT R = 500 2 4 V/mV LOAD T to T 1.5 V/mV MIN MAX R = 150 1.5 3 V/mV LOAD V = 10 V 15 V OUT R = 1 k 3.5 6 V/mV LOAD T to T 2 5 V/mV MIN MAX V = 7.5 V 15 V OUT R = 150 (50 mA Output) 2 4 V/mV LOAD INPUT CHARACTERISTICS Input Resistance 300 k Input Capacitance 1.5 pF Input Common-Mode Voltage Range 5 V +3.8 +4.3 V 2.7 3.4 V 15 V +13 +14.3 V 12 13.4 V 0, +5 V +3.8 +4.3 V +1.2 +0.9 V Common-Mode Rejection Ratio V = 2.5 V, T T 5 V 80 100 dB CM MIN MAX V = 12 V 15 V 86 120 dB CM T to T 15 V 80 100 dB MIN MAX REV. C 2