The AD790 is a fast (45 ns), precise voltage comparator, with a number of features that make it exceptionally versatile and easy to use. The AD790 may operate from either a single +5 V supply or a dual ±15 V supply. In the single-supply mode, the AD790's inputs maybe referred to ground, a feature not found in other comparators. In the dual-supply mode it has the unique ability of handling a maximum differential voltage of 15 V across its input terminals, easing their interfacing to large amplitude and dynamic signals.
The device is fabricated using Analog Devices' Complementary Bipolar (CB) process - which gives the AD790's combination of fast response time and outstanding input voltage resolution (1mV max). To preserve its speed and accuracy, the AD790 incorporates a "low glitch" output stage that does not exhibit the large current spikes normally found in TTL or CMOS output stages. Its controlled switching reduces power supply disturbances that can feed back to the input and cause undesired oscillations. The AD790 also has a latching function which makes it suitable for applications requiring synchronous operation.
The AD790 is available in five performance grades. The AD790J and the AD790K are rated over the commercial temperature range of 0°C to 70°C. The AD790a and AD790B are rated over the industrial temperature range of -40°C to +85°C. The AD790S is rated over the military temperature range of -55°C to +125°C and is available to MIL-STD-883B, Rev. C.
|Title||Content Type||File Type|
|AD790: Fast, Precision Comparator Data Sheet (Rev D, 06/2002) (pdf, 174 kB)||Data Sheets|
|AN-25: Applying the OP06 Op Amp As a High Precision Comparator (pdf, 200 kB)||Application Notes|
|AN-352: High Speed Comparators Provide Many Useful Circuit Functions When Used Correctly (pdf, 283 kB)||Application Notes|
|CN-0123: Automated Calibration Technique That Reduces the AD5360 16-Channel, 16-Bit DAC Offset Voltage to Less Than 1 mV (pdf, 132 kB)||Circuit Note|
ADI Warns Against Misuse of COTS Integrated Circuits
(pdf, 13 kB)
Invites Customer Participation in Creative Mil/Aero System Solutions
Ask The Applications Engineer-5
High-speed comparators provide many useful circuit functions when used correctly.
(Analog Dialogue, 30th Anniversary Reader Bonus)
Space Qualified Parts List
(pdf, 93 kB)
This document lists 67 (240+) space level products that are available from Analog Devices. Many of the products listed are state-of-the-art data conversion and signal processing products that were previously only available as commercial or military Class B products. Through our Space Products Group and MIL-PRF-38535 certified Level V (Class S) facility, we are pleased to offer these products to the space marketplace.
|Comparators Product Brochure 2007 (pdf, 4991 kB)||Product Selection Guide|
|Power System Management (Spring 2007) (pdf, 1170 kB)||Overview|
|Does Analog Devices offer any examples application circuits for Hi Speed Comparators?||FAQs/RAQs||HTML|
|RAQs index||Rarely Asked Questions||HTML|
|Glossary of EE Terms||Glossary||HTML|
Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.
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