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Introduction To OPA2320AIDGKR

Auth: Date:2026/6/25 Source:WECHIP Visit:1 Related Key Words: rail-to-rail bandwidth amplification multi-scenario high-frequency lithium single-channel intensity preamplifier calibration

.Overview of OPA2320AIDGKR

OPA2320AIDGKR is a dual-channel CMOS precision op amp manufactured by Texas Instruments for low-voltage analog signal processing.It features rail-to-rail I/O, wide bandwidth and low bias current for multi-scenario analog amplification.

 

.OPA2320AIDGKR Parameter

Category:Integrated Circuits (ICs),Linear,Amplifiers,Instrumentation, Op Amps, Buffer Amps

Voltage - Input Offset:40 µV

Mfr:Texas Instruments

Current - Supply:1.45mA

Packaging:Tape & Reel

Current - Output / Channel:65 mA

Part Status:Active

Voltage - Supply Span (Min):1.8 V

Amplifier Type:CMOS

Voltage - Supply Span (Max):5.5 V

Operating Temperature:-40°C ~ 125°C (TA)

Output Type:Rail-to-Rail

Mounting Type:Surface Mount

Slew Rate:10V/µs

Package / Case:8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Gain Bandwidth Product:20 MHz

Current - Input Bias:0.2 pA

 

 

.OPA2320AIDGKR Main Characteristics

Ultra-Low Bias:The op amp features an extremely low input bias current of 0.2 pA to minimize signal loss in high-impedance analog circuits. It can accurately capture ultra-weak micro-signals without additional auxiliary compensation circuits.

Wide Bandwidth:It provides a 20 MHz gain bandwidth product to support stable and high-speed small-signal amplification. This performance fully meets the high-frequency signal processing requirements of front-end ADC sampling circuits.

Rail-to-Rail Output:It supports full rail-to-rail output swing to maximize the utilization of low supply voltage range. It effectively avoids voltage margin waste and is highly compatible with single-supply miniaturized circuit designs.

Low Voltage Operation:It achieves stable operation under a wide supply voltage range from 1.8 V to 5.5 V. It is perfectly applicable to portable devices powered by lithium batteries and dry batteries.

High Slew Rate:With a 10 V/µs slew rate, it realizes fast response to pulse and step voltage signals.It effectively suppresses signal distortion and ensures complete waveform restoration in high-speed sampling systems.

Low Power Consumption:It only consumes 1.45 mA quiescent supply current during normal operation.The low static power consumption greatly extends the battery life of portable measuring devices.

 

.OPA2320AIDGKR Application 

ADC Driving:It is used to drive the 16-bit high-precision ADS8326 single-channel ADC for front-end signal conditioning of data acquisition boards. It eliminates linearity loss during high-speed sampling and ensures high-precision and stable data acquisition results.

Photodiodes Amplifying:It builds a transimpedance amplifier circuit for micro photodiodes in miniature optical detection sensors. Its ultra-low bias current prevents photocurrent loss and improves the accuracy of weak light intensity detection.

Audio Preamplification:It serves as a preamplifier for electret microphones of Bluetooth wearable headsets to process human voice analog signals. It reduces audio crossover distortion and outputs low-noise and clear voice signals.

Strain Signal Conditioning:It amplifies and sorts weak differential signals generated by strain gauges of miniature pressure transmitters. Its low input offset voltage guarantees long-term accurate pressure monitoring without frequent calibration.

Signal Sampling Holding:It constructs sample-and-hold circuits for the front-end analog channel of handheld portable oscilloscopes. It retains the integrity of high-speed transient voltage waveforms and avoids signal distortion during rapid sampling.

Battery Monitoring:It amplifies tiny voltage fluctuation signals for lithium battery protection and monitoring circuits. The rail-to-rail output realizes full-range voltage collection to accurately judge battery charge and discharge status.


.Conclusion

OPA2320AIDGKR balances precision, speed and low power, serving as a universal dual op amp for low-voltage analog designs.Its complete industrial-grade performance and compact surface-mount package simplify portable and industrial signal conditioning layout.

 


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