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OP270:  Dual Very Low Noise Precision Operational Amplifier

The OP-270 is a high-performance monolithic dual operational amplifier with exceptionally low voltage noise, 5nV/(root)Hz at 1kHz Max, offering comparable performance to PMI's industry standard OP-27.

The OP-270 features an input offset voltage below 75µV and offset drift under 1µV/°C, guaranteed over the full military temperature range. Open-loop gain of the OP-270 is over 1,500,000 ...More

OP270:  Dual Very Low Noise Precision Operational Amplifier

Product Description

The OP-270 is a high-performance monolithic dual operational amplifier with exceptionally low voltage noise, 5nV/(root)Hz at 1kHz Max, offering comparable performance to PMI's industry standard OP-27.

The OP-270 features an input offset voltage below 75µV and offset drift under 1µV/°C, guaranteed over the full military temperature range. Open-loop gain of the OP-270 is over 1,500,000 into a 10k Ohm load insuring excellent gain accuracy and linearity, even in high-gain applications. Input bias current is under 20nA which reduces errors due to signal source resistance. The OP-270's CMR of over 106dB and PSRR of less than 3.2µV/V significantly reduce errors due to ground noise and power supply fluctuations. Power consumption of the dual OP-270 is one-third less than two OP-27s, a significant advantage for power concious applications. The OP-270 is unity-gain stable with a gain-bandwidth product of 5MHz and a slew rate of 2.4V/µs.

The OP-270 offers excellent amplifier matching which is important for applications such as multiple gain blocks, low-noise instrumentation amplifiers, dual buffers, and low-noise active filters.

The OP-270 conforms to the industry standard 8-pin DIP pinout. It is pin compatible with the MC1458/1558, SE5532/A, RM4558, and HA5102 dual op amps and can be used to upgrade systems using these devices.

For higher speed applications the OP-271, with a slew rate of 8V/µs, is recommended. For a quad op amp, see the OP-470.

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  • Very Low Noise 5 nV/√Hz @ 1 kHz Max
  • Excellent Input Offset Voltage 75 µV Max
  • Low Offset Voltage Drift 1 µV/°C Max
  • Very High Gain 1500 V/mV Min
  • Outstanding CMR 106 dB Min
  • Slew Rate 2.4 V/µs Typ
  • Gain Bandwidth Product 5 MHz Typ
  • Industry-Standard 8-Lead Dual Pinout
  • Iq per Amplifier: 3.25mA
  • # OpAmps per Pkg: 2
  • Operating Temp Range: -55 to +125
  • Packages: DIP,SOIC
  • -3dB Bandwidth: 5MHz
  • Slew Rate: 2.4V/µs
  • Vos: 50µV
  • Ib: 15nA
  • Input Noise (nV/rtHz): 3.2nV/rtHz
  • Vcc-Vee Supply (V): 9 to 36

Pin Configuration Diagram for OP270

OP270 Diagram
Pin Configuration Diagram for OP270

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)
OP270 5MHz 2.4V/µs 50µV 15nA 3.2nV/rtHz 2 -55 to +125
OP27 8MHz 2.8V/µs 30µV 15nA 3.2nV/rtHz 1 -55 to +125
AD8672 10MHz 4V/µs 20µV 3nA 2.8nV/rtHz 2 -40 to +125
AD8676 10MHz 2.5V/µs 12µV 500pA 2.8nV/rtHz 2 -40 to +125
AD712 4MHz 20V/µs 300µV 25pA 16nV/rtHz 2 -55 to +125
AD746 13MHz 75V/µs 300µV 110pA 16nV/rtHz 2 -55 to +125
OP249 4.7MHz 22V/µs 400µV 40pA 16nV/rtHz 2 -55 to +125
AD8675 10MHz 2.5V/µs 10µV 500pA 2.8nV/rtHz 1 -40 to +125
AD8674 10MHz 4V/µs 20µV 3nA 2.8nV/rtHz 4 -40 to +125
AD8671 10MHz 4V/µs 20µV 3nA 2.8nV/rtHz 1 -40 to +125
AD8599 10MHz 16.8V/µs 10µV 25nA 1.15nV/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
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*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.