OP727ARZ

Instrumentation, Op Amps, Buffer Amps Overview

The OP727ARZ is a dual precision operational amplifier from Analog Devices, featuring rail-to-rail output and micropower operation. It operates on single supplies from 3 V to 30 V or dual supplies of ±1.5 V to ±15 V. Key electrical specifications include a maximum input offset voltage of 160 μV at +85°C, a maximum input bias current of 10 nA, and a supply current of 320 μA per amplifier. The device offers a gain-bandwidth product of 0.7 MHz, a slew rate of 0.2 V/μs, and a common-mode rejection ratio of 120 dB. It is housed in an 8-lead SOIC package and functions within an industrial temperature range of –40 °C to +85 °C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Features rail-to-rail output capability with low offset voltage and micropower consumption for efficient single-supply applications.
• Includes built-in 500 Ω series resistors on inputs to protect against overvoltage conditions without causing phase reversal.
• Utilizes a precision Bipolar PNP input stage coupled with a high-voltage CMOS output stage for high breakdown voltage and low noise.

Instrumentation, Op Amps, Buffer Amps Applications

• Current sensing using shunt resistors
• Line or battery-powered instrumentation
• Remote sensor signal conditioning
• Precision filters

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix to confirm the packaging format, as the base model OP727ARZ typically denotes tube packaging while suffixes like REEL indicate tape and reel options. Confirm RoHS compliance status via the manufacturer's documentation, as indicated by the Z suffix in related part numbers. Ensure the selected variant matches the required surface-mount package dimensions for the target PCB layout.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when designing circuits requiring true single-supply operation down to 3 V with rail-to-rail output swing. It serves as a pin-compatible alternative to the LT1013 in 8-lead SOIC configurations. Consider its extended input voltage range and lack of phase reversal for applications where inputs may exceed supply rails. Verify that the 0.7 MHz bandwidth and 0.2 V/μs slew rate meet the dynamic performance requirements of the signal chain.

Instrumentation, Op Amps, Buffer Amps Part Context

The OP727ARZ belongs to the OP777/OP727/OP747 family of precision micropower single-supply operational amplifiers manufactured by Analog Devices. This series provides improved performance over the industry-standard OP07, offering smaller package options and true single-supply operation. The dual configuration (OP727) is specifically available in 8-lead TSSOP and 8-lead SOIC packages, distinguishing it from the single (OP777) and quad (OP747) variants.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The datasheet explicitly notes that the OP727 8-lead SOIC pin configuration differs from the standard 8-lead operational amplifier pinout. While it is described as pin-compatible with the LT1013 in the 8-lead SOIC form factor, verify pin assignments carefully before substitution due to the non-standard layout.