LOG112AID

Instrumentation, Op Amps, Buffer Amps Overview

The LOG112AID is a precision logarithmic amplifier manufactured by Texas Instruments, designed for high-accuracy signal processing. It features two channels within a single package and operates on supply voltages ranging from 9 V to 36 V. The device exhibits a 45 kHz 3dB bandwidth and low input bias current of 5 pA. Input offset voltage is specified at 1.5 mV, with typical common-mode rejection ratio of 100 dB. It consumes 1.75 mA of operating current and functions reliably across temperatures from -40°C to +85°C in a 14-pin SOIC surface-mount package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Precision logarithmic amplification for wide dynamic range measurements
• Dual-channel architecture enabling simultaneous signal processing
• High common-mode rejection ratio for noise immunity
• Low input bias current suitable for sensitive sensor interfaces

Instrumentation, Op Amps, Buffer Amps Applications

• Optical power monitoring systems
• Spectroscopy equipment
• Radiation detection instrumentation
• Medical imaging devices

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the LOG112AID datasheet for specific handling requirements regarding moisture sensitivity level. Confirm that the SOIC-14 package dimensions align with your PCB footprint design. Ensure supply voltage constraints between 9 V and 36 V are strictly maintained during operation. Check thermal dissipation capabilities for the intended ambient temperature range up to 85°C.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select the LOG112AID when dual-channel logarithmic response is required with high precision. Consider its 45 kHz bandwidth limitation against higher-speed alternatives if signal frequency exceeds this range. Evaluate the 9 V minimum supply requirement against available system rails. Compare input bias current specifications against other log amps if measuring extremely low currents.

Instrumentation, Op Amps, Buffer Amps Part Context

The LOG112 belongs to Texas Instruments' LOG112 series of precision logarithmic amplifiers. This family is engineered for applications requiring accurate conversion of input current or voltage into a logarithmic output voltage. The AID suffix indicates a specific temperature grade and packaging variant within the broader LOG112 product line.

Instrumentation, Op Amps, Buffer Amps FAQ

What is the maximum supply voltage for the LOG112AID?

The maximum supply voltage for the LOG112AID is 36 V.

Does the LOG112AID support single-supply operation?

No, the LOG112AID requires a minimum supply voltage of 9 V, making it unsuitable for low-voltage single-supply applications below this threshold.