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OP295:  Rail-to-Rail Dual Op Amp

Product Details


Newer Alternatives:
  • ADA4096-2 with higher BW, lower Vos, lower Isy and 32V Input OVP

Rail-to-rail output swing combined with dc accuracy are the key features of the OP495 quad and OP295 dual CBCMOS operational amplifiers. By using a bipolar front end, lower noise and higher accuracy than those of CMOS designs have been achieved. Both input and output ranges include the negative supply, providing the user with zero-in/zero-out capability. For users of 3.3 V systems such as lithium batteries, the OP295/OP495 are specified for 3 V operation.

Maximum offset voltage is specified at 300 μV for 5 V operation, and the open-loop gain is a minimum of 1000 V/mV. This yields performance that can be used to implement high accuracy systems, even in single-supply designs.

The ability to swing rail-to-rail and supply 15 mA to the load makes the OP295/OP495 ideal drivers for power transistors and H bridges. This allows designs to achieve higher efficiencies and to transfer more power to the load than previously possible without the use of discrete components.

For applications such as transformers that require driving inductive loads, increases in efficiency are also possible. Stability while driving capacitive loads is another benefit of this design over CMOS rail-to-rail amplifiers. This is useful for driving coax cable or large FET transistors. The OP295/OP495 are stable with loads in excess of 300 pF.

The OP295 and OP495 are specified over the extended indus-trial (−40°C to +125°C) temperature range. The OP295 is available in 8-lead PDIP and 8-lead SOIC_N surface-mount packages. The OP495 is available in 14-lead PDIP and 16-lead SOIC_W surface-mount packages.

Applications

  • Battery-operated instrumentation
  • Servo amplifiers
  • Actuator drives
  • Sensor conditioners
  • Power supply control

FEATURES and BENEFITS

  • Rail-to-rail output swing
  • Single-supply operation: 3 V to 36 V
  • Low offset voltage: 300 μV
  • Gain bandwidth product: 75 kHz
  • High open-loop gain: 1000 V/mV
  • Unity-gain stable
  • Low supply current/per amplifier: 150 μA maximum

Pin Configuration for OP295

Documentation

Title Content Type File Type
OP295/OP495: Dual/Quad Rail-to-Rail Operational Amplifiers Data Sheet (Rev G, 08/2009) (pdf, 389 kB) Data Sheets PDF
AN-649: Using the Analog Devices Active Filter Design Tool  (pdf, 5301 kB) Application Notes PDF
Low-Power, Low-Voltage IC Choices for ECG System Requirements
(Analog Dialogue, Vol. 29, No. 3, 1995)
Technical Articles HTML
Low-Power, Low-Voltage IC Choices for ECG System Requirements
(Analog Dialogue, Vol. 29, No. 3, 1995)
Analog Dialogue HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
OP295 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

OP295 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
OP295GP Status: Production 8 ld PDIP 8 Ind Tube, 50 $2.70 $2.57 N  Material Info PCN Purchase
OP295GPZ Status: Production 8 ld PDIP 8 Ind Tube, 50 $2.39 $2.27 Y  Material Info PCN Purchase
OP295GS Status: Production 8 ld SOIC 8 Ind Tube, 98 $2.64 $2.51 N  Material Info Notify Me Purchase
OP295GS-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $2.51 N  Material Info Notify Me Purchase
OP295GS-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $2.51 N  Material Info Notify Me Purchase
OP295GSZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $2.34 $2.22 Y  Material Info Notify Me Purchase
OP295GSZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $2.22 Y  Material Info Notify Me Purchase
OP295GSZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $2.22 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-2 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-PRAOPAMP-2CPZ Status: Production Dual CP-8 lead LFCSP Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-2RMZ Status: Production Dual RM-8 lead MSOP Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-2RZ Status: Production Dual 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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