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AD790:  Fast, Precision Comparator

Product Details


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.

FEATURES and BENEFITS

  • 45 ns max Propagation Delay
  • Single 5 V or Dual ±15 V Supply Operation
  • CMOS or TTL Compatible Output
  • 250 µV max Input Offset Voltage
  • 500 µV max Input Hysteresis Voltage
  • 15 V max Differential Input Voltage
  • Onboard Latch
  • 60 mW Power Dissipation
  • Available in 8-Pin Plastic and Hermetic Cerdip Packages
  • Available in Tape and Reel in Accordance with EIA-481A Standard

Pin Configuration for AD790

Documentation

Title Content Type File Type
AD790: Fast, Precision Comparator Data Sheet  (Rev E, 11/2014) (pdf, 174 kB) Data Sheets PDF
AN-25: Applying the OP06 Op Amp As a High Precision Comparator  (pdf, 200 kB) Application Notes PDF
AN-352: High Speed Comparators Provide Many Useful Circuit Functions When Used Correctly  (pdf, 283 kB) Application Notes PDF
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 PDF
ADI Warns Against Misuse of COTS Integrated Circuits  (pdf, 13 kB)
(Revised 1/03)
Invites Customer Participation in Creative Mil/Aero System Solutions
Recommended Reading PDF
Ask The Applications Engineer-5
High-speed comparators provide many useful circuit functions when used correctly.

(Analog Dialogue, 30th Anniversary Reader Bonus)
Analog Dialogue HTML
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.
Aerospace Information PDF
Comparators Product Brochure 2007  (pdf, 4991 kB) Product Selection Guide PDF
Power System Management (Spring 2007)  (pdf, 1170 kB) Overview PDF
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

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Price, packaging, availability

AD790 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD790AQ Status: Production CERDIP GLASS SEAL 8 Ind Tube, 48 $8.40 $7.98 N  Material Info PCN Purchase
AD790JN Status: Production 8 ld PDIP 8 Comm. Tube, 50 $5.16 $4.64 N  Material Info PCN Purchase
AD790JNZ Status: Production 8 ld PDIP 8 Comm. Tube, 50 $4.13 $3.71 Y  Material Info PCN Purchase Sample
AD790JR Status: Production 8 ld SOIC 8 Comm. Tube, 98 $5.16 $4.64 N  Material Info Notify Me Purchase
AD790JR-REEL Status: Production 8 ld SOIC 8 Comm. Reel, 2500 - $4.64 N  Material Info PDN Purchase
AD790JR-REEL7 Status: Production 8 ld SOIC 8 Comm. Reel, 750 - $4.64 N  Material Info Notify Me Purchase
AD790JRZ Status: Production 8 ld SOIC 8 Comm. Tube, 98 $4.13 $3.71 Y  Material Info Notify Me Purchase Sample
AD790JRZ-REEL Status: Production 8 ld SOIC 8 Comm. Reel, 2500 - $3.71 Y  Material Info Notify Me Purchase
AD790JRZ-REEL7 Status: Production 8 ld SOIC 8 Comm. Reel, 750 - $3.71 Y  Material Info Notify Me Purchase
AD790SQ Status: Production CERDIP GLASS SEAL 8 Mil Tube, 48 $20.28 $19.27 N  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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