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High Speed, Low Power Monolithic Op Amp AD847

FEATURES Superior Performance High Unity Gain BW: 50 MHz Low Supply Current: 5.3 mA High Slew Rate: 300 V/␮s Excellent Video Specifications 0.04% Differential Gain (NTSC and PAL) 0.19؇ Differential Phase (NTSC and PAL) Drives Any Capacitive Load Fast Settling Time to 0.1% (10 V Step): 65 ns Excellent DC Performance High Open-Loop Gain 5.5 V/mV (RLOAD = 1 k⍀) Low Input Offset Voltage: 0.5 mV Specified for ؎5 V and ؎15 V Operation Available in a Wide Variety of Options Plastic DIP and SOIC Packages Cerdip Package Die Form MIL-STD-883B Processing Tape & Reel (EIA-481A Standard) Dual Version Available: AD827 (8 Lead) Enhanced Replacement for LM6361 Replacement for HA2544, HA2520/2/5 and EL2020 APPLICATIONS Video Instrumentation Imaging Equipment Copiers, Fax, Scanners, Cameras High Speed Cable Driver High Speed DAC and Flash ADC Buffers

CONNECTION DIAGRAM Plastic DIP (N), Small Outline (R) and Cerdip (Q) Packages

specifications which include an open-loop gain of 3500 V/V (500 Ω load) and low input offset voltage of 0.5 mV. Commonmode rejection is a minimum of 78 dB. Output voltage swing is ± 3 V into loads as low as 150 Ω. Analog Devices also offers over 30 other high speed amplifiers from the low noise AD829 (1.7 nV/√Hz) to the ultimate video amplifier, the AD811, which features 0.01% differential gain and 0.01° differential phase. APPLICATION HIGHLIGHTS

1. As a buffer the AD847 offers a full-power bandwidth of 12.7 MHz (5 V p with ± 5 V supplies) making it outstanding as an input buffer for flash A/D converters.


The AD847 represents a breakthrough in high speed amplifiers offering superior ac & dc performance and low power, all at low cost. The excellent dc performance is demonstrated by its ± 5 V

2. The low power and small outline package of the AD847 make it very well suited for high density applications such as multiple pole active filters. 3. The AD847 is internally compensated for unity gain operation and remains stable when driving any capacitive load.






4 0

5 10 15 SUPPLY VOLTAGE – ± Volts


Quiescent Current vs. Supply Voltage

AD847 Driving Capacitive Loads

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 which 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: 617/329-4700 Fax: 617/326-8703


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