NJU77551F3-TE1

Instrumentation, Op Amps, Buffer Amps Overview

The NJU77551F3-TE1 is a single-channel operational amplifier from Nisshinbo Micro Devices, housed in an SC-88A (SC-70-5) package. It features a gain-bandwidth product of 1.7 MHz and a typical supply current of 50 µA per channel. The device supports a supply voltage range of 1.8 V to 5.5 V with rail-to-rail input and output capabilities. Key electrical specifications include a slew rate of 0.8 V/µs, a maximum input offset voltage of 5 mV, and an integrated EMI filter providing 75 dB rejection at 900 MHz. It operates within a temperature range of -55°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail input and output stages enable full signal swing across the supply range.
• Integrated EMI filter provides high immunity against radio frequency interference.
• Input tolerant design allows input voltages to exceed the positive supply rail without phase reversal or damage.
• Low power consumption with unity-gain stability suitable for battery-powered applications.

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered audio, healthcare, and security equipment
• Gas and smoke sensor interfaces
• Smart metering systems
• Photodiode amplifiers and transimpedance circuits
• Active filters and ADC buffers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix F3 corresponds to the SC-88A package configuration required for your layout. Confirm RoHS compliance and halogen-free status as specified in the manufacturer's ordering information. Ensure the component marking code matches the datasheet requirements for quality assurance during incoming inspection.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when low quiescent current and high EMI immunity are critical constraints. The rail-to-rail I/O makes it suitable for single-supply systems operating at low voltages like 1.8 V. Consider the SC-88A package size for space-constrained designs requiring a single amplifier channel.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the NJU7755x series, which includes single (NJU77550/51), dual (NJU77552), and quad (NJU77554) amplifier variants. All members share identical electrical characteristics but differ in pin count and package options such as SOT-23-5, SOP8, MSOP8, DFN8-U1, and SSOP14.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

NJU77550F3-TE1: Single channel in SOT-23-5 package.

Instrumentation, Op Amps, Buffer Amps FAQ

How does the input tolerant feature protect the device?

The input stage shunts overvoltage current to the negative supply rail, preventing phase reversal and protecting internal transistors when input voltages exceed the positive supply voltage up to 5.5 V.

What is the recommended maximum input voltage?

While the absolute maximum rating allows up to V- + 7 V, the datasheet recommends designing for input voltages up to V- + 5.5 V to ensure optimal performance and protection.