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AD795:  Low Power, Low Noise Precision FET Op Amp

Product Details


The AD795 is a low noise, precision, FET input operational amplifier. It offers both the low voltage noise and low offset drift of a bipolar input op amp and the very low bias current of a FET- input device. The 1014 Ω common-mode impedance insures that input bias current is essentially independent of common- mode voltage and supply voltage variations.

The AD795 has both excellent dc performance and a guaranteed and tested maximum input voltage noise. It features 2 pA maximum input bias current and 500 μV maximum offset voltage, along with low supply current of 1.5 mA maximum.

Furthermore, the AD795 features a guaranteed low input noise of 3.3 μV p-p (0.1 Hz to 10 Hz) and a 11 nV/√Hz maximum noise level at 10 kHz. The AD795 has a fully specified and tested input offset voltage drift of only 10 μV/°C maximum.

The AD795 is useful for many high input impedance, low noise applications. The AD795 is rated over the commercial tempera- ture range of 0°C to +70°C. The AD795 is available in an 8-lead SOIC package.

APPLICATIONS
  • Low noise photodiode preamps
  • CT scanners
  • Precision l-to-V converters

FEATURES and BENEFITS

  • Low power replacement for Burr-Brown
      OPA111, OPA121 op amps
  • Low noise
      3.3 µV p-p maximum, 0.1 Hz to 10 Hz
      11 nV/√Hz maximum at 10 kHz
      0.6 fA/√Hz at 1 kHz
  • High dc accuracy
      500 µV maximum offset voltage
      10 µV/°C maximum drift
      2 pA maximum input bias current
      Low power: 1.5 mA maximum supply current

Pin Diagram for AD795

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD795 SPICE Macro-Model SPICE Models HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

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.

SampleSample & Buy

Price, packaging, availability

AD795 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD795JR Status: Last Time Buy 8 ld SOIC 8 Comm. Tube, 98 $4.24 $3.81 N  Material Info PDN Purchase
AD795JR-REEL Status: Last Time Buy 8 ld SOIC 8 Comm. Reel, 2500 - $3.81 N  Material Info PDN Purchase
AD795JR-REEL7 Status: Last Time Buy 8 ld SOIC 8 Comm. Reel, 1000 - $3.81 N  Material Info PDN Purchase
AD795JRZ Status: Production 8 ld SOIC 8 Comm. Tube, 98 $3.74 $3.38 Y  Material Info Notify Me Purchase
AD795JRZ-REEL Status: Production 8 ld SOIC 8 Comm. Reel, 2500 - $3.38 Y  Material Info Notify Me Purchase
AD795JRZ-REEL7 Status: Production 8 ld SOIC 8 Comm. Reel, 1000 - $3.38 Y  Material Info Notify Me 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.

EVAL-OPAMP-1 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-PRAOPAMP-1KSZ Status: Production Single KS-5 lead SC70 Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-1RJZ Status: Production Single RJ-5 lead SOT23 Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-1RMZ Status: Production Single RM-8 lead MSOP Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-1RZ Status: Production Single R-8 lead SOIC Evaluation Board $20.19 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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