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ADA4691-4:  Quad Low Power, 3.6 MHz, Low Noise, Rail-to-Rail Output, Operational Amplifier

The ADA4691-4 is a quad rail-to-rail output, single-supply amplifier featuring low power, wide bandwidth, and low noise. The ADA4691-4 has two independent shutdown pins, allowing further reduction in supply current. These amplifiers are ideal for a wide variety of applications. Audio preamps, filters, IR/photodiode amplifiers, charge amps, and high impedance sensors all benefit from this ...More

ADA4691-4:  Quad Low Power, 3.6 MHz, Low Noise, Rail-to-Rail Output, Operational Amplifier

Product Description

The ADA4691-4 is a quad rail-to-rail output, single-supply amplifier featuring low power, wide bandwidth, and low noise. The ADA4691-4 has two independent shutdown pins, allowing further reduction in supply current. These amplifiers are ideal for a wide variety of applications. Audio preamps, filters, IR/photodiode amplifiers, charge amps, and high impedance sensors all benefit from this combination of performance features. The ADA4692-4 is a quad version without shutdown in a 14-lead TSSOP package.

Applications for these amplifiers include consumer audio personal players with low noise and low distortion that provide enough gain and slew rate response over the audio band at low power. Industrial applications with high impedance sensors, such as pyroelectric sensors and other IR sensors, benefit from the high impedance input, low offset drift, and enough band-width and response for low gain applications.

The ADA4691-4 is specified over the extended industrial temperature range (−40°C to +125°C). The ADA4691-4 is available in a 16-lead LFCSP packages.

Applications
  • Photodiode amplifier
  • Sensor amplifier
  • Portable instrumentation
  • Portable medical devices
  • Portable audio: MP3, PDA, smart phone, notebook
  • Headphone speaker driver
  • Communications
  • Low-side current sense
  • ADC driver
  • Active filter
  • Sample-and-hold
  • Automotive sensors

RESOURCES & TOOLS

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  • Low power: 180 μA typical
  • Low distortion: 0.003% THD + N
  • Low noise: 16 nV/√Hz typical
  • 3.6 MHz bandwidth
  • Offset voltage: 500 μV typical
  • Low offset voltage drift: 4 μV/°C maximum
  • Very low input bias currents: 0.5 pA typical
  • 2.7 V to 5 V single supply or ±1.35 V to ±2.5 V dual supply
  • Available in small 3 mm × 3mm LFCSP packages

Pricing, Packaging & Availability

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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.