OPA2335AMJG

Instrumentation, Op Amps, Buffer Amps Overview

The OPA2335AMJG is a dual-channel, single-supply CMOS operational amplifier utilizing auto-zeroing techniques for high precision. It features a maximum input offset voltage of 5 µV and a typical drift of 0.02 µV/°C. The device operates on supply voltages ranging from 2.7 V to 5.5 V with a total quiescent current of 570 µA at 25°C. Key electrical parameters include a gain-bandwidth product of 2 MHz, a slew rate of 1.6 V/µs, and an input bias current of 200 pA. It provides rail-to-rail output swing and is housed in a CDIP-8 package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Auto-zeroing topology ensures low offset voltage and near-zero drift over time and temperature.
• Rail-to-rail output capability allows signal swing close to the negative supply rail.
• High input impedance combined with low quiescent current suitable for battery-powered systems.

Instrumentation, Op Amps, Buffer Amps Applications

• Transducer Applications
• Temperature Measurement
• Electronic Scales
• Medical Instrumentation
• Battery-Powered Instruments

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'MJG' corresponds to the ceramic dual-in-line (CDIP) package variant. Confirm that the operating temperature range of -55°C to 125°C aligns with environmental requirements. Ensure design compatibility with the 8-pin through-hole footprint and check for any specific handling precautions related to the ceramic packaging.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when ultra-low offset voltage and minimal drift are critical for signal integrity. The auto-zero architecture distinguishes it from standard chopper amplifiers by reducing aliasing effects. Consider the CDIP package constraints if surface-mount alternatives like SOIC or VSSOP are preferred for automated assembly processes.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the OPA2335 series of zero-drift operational amplifiers manufactured by Texas Instruments. It shares core performance characteristics with other variants in the family but is distinguished by its specific ceramic package designation. The series is designed for applications requiring high DC accuracy without the complexity of external calibration.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

OPA2335M

Instrumentation, Op Amps, Buffer Amps FAQ

How does the auto-zeroing mechanism affect startup behavior?

Upon power-up, the amplifier requires one full auto-zero cycle of approximately 100 µs to achieve specified offset voltage accuracy. During this initial period, the device functions properly but with unspecified offset voltage.

Can the output swing below ground on a single supply?

Yes, the output can swing slightly below the negative supply rail (e.g., down to -2 mV or lower with a pull-down resistor) to achieve excellent accuracy at 0 V.