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AD8668:  16 V, 4 MHz Rail-to-Rail Output Amplifiers

The AD866x family are single supply, rail-to-rail output amplifiers with low noise performance featuring an extended operating range with supply voltages up to 16 V. They also feature low input bias currents, wide signal bandwidth, and low input voltage and current noise. For lower offset voltage, choose the AD8661/AD8662/AD8664 family. The combination of low offsets, very low input bias currents, ...More

AD8668:  16 V, 4 MHz Rail-to-Rail Output Amplifiers

Product Description

The AD866x family are single supply, rail-to-rail output amplifiers with low noise performance featuring an extended operating range with supply voltages up to 16 V. They also feature low input bias currents, wide signal bandwidth, and low input voltage and current noise. For lower offset voltage, choose the AD8661/AD8662/AD8664 family. The combination of low offsets, very low input bias currents, and wide supply range make these amplifiers useful in a wide variety of cost sensitive applications normally associated with much higher priced JFET amplifiers. Systems using high impedance sensors, such as photo diodes, benefit from the combination of low input bias current, low noise, and low offset and bandwidth. The wide operating voltage range matches high performance ADCs and DACs. Audio applications and medical monitoring equipment can take advantage of the high input impedance, low voltage and current noise, wide bandwidth, and the lack of popcorn noise found in many other low input bias current amplifiers.

The AD866x family is specified over the extended industrial temperature range (−40°C to +125°C).


Applications
  • Sensor amplification
  • Reference buffers
  • Medical equipment
  • Physiological measurements
  • Signal filters and conditioning
  • Consumer audio
  • Photodiode amplification
  • ADC driver
  • Level shifting circuits

RESOURCES & TOOLS

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  • Offset voltage: 2.5 mV max
  • Low input bias current: 1 pA max
  • Single-supply operation: 5 V to 16 V
  • Dual-supply operation: ±2.5 V to ±8 V
  • Low noise: 8 nV/√Hz @ 10 kHz
  • Wide bandwidth: 4 MHz
  • Rail-to-rail output
  • Unity-gain stable
  • Lead-free packaging
  • -3dB Bandwidth: 4MHz
  • Slew Rate: 3.5V/µs
  • Vos: 600µV
  • Ib: 0.2pA
  • Input Noise (nV/rtHz): 10nV/rtHz
  • Vcc-Vee Supply (V): 5 to 16
  • Iq per Amplifier: 1.55mA
  • # OpAmps per Pkg: 4
  • Operating Temp Range: -40 to +125
  • Packages: SOIC,SOP

Pin Diagram for AD8668

Similar Products

arrow View Full Interactive Product Selection Table
Part# Small Signal Bandwidth Slew Rate Vos Ib V Noise Density Amplifiers Per Package Widest Temp Range (°C)
AD8694 10MHz 5V/µs 400µV 200fA 8nV/rtHz 4 -40 to +125
AD8668 4MHz 3.5V/µs 600µV 200fA 10nV/rtHz 4 -40 to +125
AD8608 10MHz 5V/µs 20µV 200fA 6.5nV/rtHz 4 -40 to +125
AD8618 24MHz 12V/µs 23µV 200fA 6nV/rtHz 4 -40 to +125
AD8674 10MHz 4V/µs 20µV 3nA 2.8nV/rtHz 4 -40 to +125
OP484 4.25MHz 4V/µs 250µV 80nA 3.9nV/rtHz 4 -40 to +125
AD8604 8.4MHz 6V/µs 500µV 200fA 18nV/rtHz 4 -40 to +125
OP462 15MHz 13V/µs 25µV 260nA 9.5nV/rtHz 4 -40 to +125
AD8648 22MHz 12V/µs 700µV 200fA 6nV/rtHz 4 -40 to +125
ADA4851-4 130MHz 375V/µs 600µV 1.8µA 10nV/rtHz 4 -40 to +125
AD8666 4MHz 3.5V/µs 600µV 200fA 10nV/rtHz 2 -40 to +125
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Pricing, Packaging & Availability

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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.

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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.
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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.

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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.