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a FEATURES HIGH SPEED 50 MHz Unity Gain Stable Operation 300 V/␮s Slew Rate 120 ns Settling Time Drives Unlimited Capacitive Loads

High Speed, Low Power Dual Op Amp AD827 CONNECTION DIAGRAMS 8-Pin Plastic (N) and Cerdip (Q) Packages

16-Pin Small Outline (R) Package

EXCELLENT VIDEO PERFORMANCE 0.04% Differential Gain @ 4.4 MHz 0.19؇ Differential Phase @ 4.4 MHz GOOD DC PERFORMANCE 2 mV max Input Offset Voltage 15 ␮V/؇C Input Offset Voltage Drift Available in Tape and Reel in Accordance with EIA-481A Standard

20-Pin LCC (E) Package

LOW POWER Only 10 mA Total Supply Current for Both Amplifiers ؎5 V to ؎15 V Supplies PRODUCT DESCRIPTION

The AD827 is a dual version of Analog Devices’ industrystandard AD847 op amp. Like the AD847, it provides high speed, low power performance at low cost. The AD827 achieves a 300 V/µs slew rate and 50 MHz unity-gain bandwidth while consuming only 100 mW when operating from ± 5 volt power supplies. Performance is specified for operation using ± 5 V to ± 15 V power supplies. The AD827 offers an open-loop gain of 3,500 V/V into 500 Ω loads. It also features a low input voltage noise of 15 nV/√Hz, and a low input offset voltage of 2 mV maximum. Commonmode rejection ratio is a minimum of 80 dB. Power supply rejection ratio is maintained at better than 20 dB with input frequencies as high as 1 MHz, thus minimizing noise feedthrough from switching power supplies. The AD827 is also ideal for use in demanding video applications, driving coaxial cables with less than 0.04% differential gain and 0.19° differential phase errors for 643 mV p into a 75 Ω reverse terminated cable. The AD827 is also useful in multichannel, high speed data conversion systems where its fast (120 ns to 0.1%) settling time is of importance. In such applications, the AD827 serves as an input buffer for 8-bit to 10-bit A/D converters and as an output amplifier for high speed D/A converters.

APPLICATION HIGHLIGHTS

1. Performance is fully specified for operation using ± 5 V to ± 15 V supplies. 2. A 0.04% differential gain and 0.19° differential phase error at the 4.4 MHz color subcarrier frequency, together with its low cost, make it ideal for many video applications. 3. The AD827 can drive unlimited capacitive loads, while its 30 mA output current allows 50 Ω and 75 Ω reverseterminated loads to be driven. 4. The AD827’s 50 MHz unity-gain bandwidth makes it an ideal candidate for multistage active filters. 5. The AD827 is available in 8-pin plastic mini-DIP and cerdip, 20-pin LCC, and 16-pin SOIC packages. Chips and MILSTD-883B processing are also available.

REV. B 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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