content here.
content here.

AD8295:  PRECISION INSTRUMENTATION AMPLIFIER WITH SIGNAL PROCESSING AMPLIFIERS

The AD8295 contains all the components necessary for a precision instrumentation amplifier front end in one small 4 mm × 4 mm package. It contains a high performance instrumentation amplifier, two general-purpose operational amplifiers, and two precisely matched 10 kΩ resistors.

The AD8295 has been designed to make PCB routing easy and efficient. The AD8295 components are arranged in a ...More

AD8295:  PRECISION INSTRUMENTATION AMPLIFIER WITH SIGNAL PROCESSING AMPLIFIERS

Product Description

The AD8295 contains all the components necessary for a precision instrumentation amplifier front end in one small 4 mm × 4 mm package. It contains a high performance instrumentation amplifier, two general-purpose operational amplifiers, and two precisely matched 10 kΩ resistors.

The AD8295 has been designed to make PCB routing easy and efficient. The AD8295 components are arranged in a logical way so that typical application circuits have short routes and few vias. Unlike most chip scale packages, the AD8295 does not have an exposed metal pad on the back of the part, which frees up additional space for routing and vias. The AD8295 comes in a 4 mm × 4 mm LFCSP that requires half the board space of an 8-pin SOIC package.

The AD8295 includes a high performance, programmable gain instrumentation amplifier. Gain is set from 1 to 1000 with a single resistor. The low noise and excellent common-mode rejection of the AD8295 enable the part to easily detect small signals even in the presence of large common-mode interference. For a similar instrumentation amplifier without the associated signal conditioning circuitry, see the AD8221 or AD8222 data sheet.

The AD8295 operates on both single and dual supplies and is well suited for applications where ±10 V input voltages are encountered. Performance is specified over the entire industrial temperature range of −40°C to +85°C for all grades. The AD8295 is operational from −40°C to +125°C; see the Typical Performance Characteristics section for expected operation up to 125°C.

Applications

  • Industrial process controls
  • Wheatstone bridges
  • Precision data acquisition systems
  • Medical instrumentation
  • Strain gauges
  • Transducer interfaces
  • Differential output

    • Data Sheet, Rev 0, 11/2008

    RESOURCES & TOOLS

    What is your task? Try Lead the Way AdvisorTM BETA
    • Saves board space
    • Includes precision in-amp, 2 op amps, and 2 matched resistors
    • 4 mm × 4 mm LFCSP
    • No heat slug for more routing room
    • Differential output fully specified
    • Wide power supply range: ±2.3 V to ±18 V
    • In amp specifications:
      Gain set with 1 external resistor (gain range: 1 to 1000)
      8 nV/√Hz, @ 1 kHz, max input voltage noise
      90 dB min CMRR (G = 1)
      0.8 nA max input bias current
      1.2 MHz, −3 dB bandwidth (G = 1)
      2 V/µs slew rate
    • 1 ppm/°C, 0.03% resistor matching
    • Single/Dual Supply: Dual
    • Voltage Supply (Vmax) : +36V
    • Gain Setting Method: Resistor
    • Gain Range (min to max): 1000
    • Bandwidth G=10 (kHz typ): 750MHz
    • CMRR (dB): 140dB
    • Vnoise RTI 1-10 Hz µVp-p : 0.25µV p-p
    • Temperature Range: -40 to +85
    • Supply Current : 2.3mA
    • Package: LFCSP

    Functional Block Diagram for AD8295

    Of Note ...

    For additional ADI Healthcare Products and related information, please visit www.analog.com/healthcare.

    Similar Products:   

    View Interactive Product Selection Table

    Pricing, Packaging & Availability

    Print Table
    back to top

    Help

    Model
    The model number is a specific version of a generic that can be purchased or sampled.

    Status
    Status indicates the current lifecycle of the product. This can be one of 4 stages:
    • Pre-Release: The model has not been released to general production, but samples may be available.
    • Production: The model is currently being produced, and generally available for purchase and sampling.
    • Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
    • Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
    Package Description
    The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

    For detailed drawings and chemical composition please consult our  Package Site

    Pin Count
    Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

    Temperature Range
    This is the acceptable operating range of the device. The various ranges specified are as follows:
    • Commercial: 0 to +70 degrees Celsius
    • Military : -55 to +125 degrees Celsius
    • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
    • Automotive: -40 to +125 degrees Celsius
    Price
    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.

    Production Availability
    This is the date Analog Devices, Inc. anticipates that the product will ship from the warehouse. Most orders ship within 48 hours of this date.Once an order has been placed, Analog Devices, Inc. will send an Order Acknowledgement email to confirm your delivery date. It is important to note the scheduled dock date on the order entry screen. We do take orders for items that are not in stock, so delivery may be scheduled at a future date. Also, please note the warehouse location for the product ordered. We have warehouses in the United States, Europe and Southeast Asia. Transit times from these sites may vary.
    Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

    RoHS Compliant
    Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

    View PCN
    This is the list of Product Change Notifications (PCN) published on the web for this model. Click on the link to access PCN Information.Only select pre-2009 PCN�s are available on-line. To obtain a pre-2009 PCN, contact your ADI Sales Rep. For more information on ADI's PCN process, please visit our PCN Policy Statement page

    *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.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.