Overview
The OPA376AIDCKRG4, part of the OPAx376 family, is a low-noise, low quiescent current, precision operational amplifier manufactured by Texas Instruments. This device is distinguished by its outstanding DC precision and AC performance, making it ideal for various precision and portable applications. The OPA376AIDCKRG4 operates on a single power supply with a range of 2.2 V to 5.5 V and features rail-to-rail input and output, low offset voltage, and excellent power supply rejection ratio (PSRR). These characteristics make it suitable for applications that run directly from batteries without regulation.
Key Specifications
| Parameter | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Offset Voltage (VOS) | 5 | - | 25 | μV |
| Input Bias Current (IB) | 0.2 | - | 10 | pA |
| Input Voltage Noise Density (en) | 7.5 | - | - | nV/√Hz |
| Gain Bandwidth Product (GBW) | 5.5 | - | - | MHz |
| Slew Rate (SR) | 2 | - | - | V/μs |
| Quiescent Current (IQ) | 760 | - | 950 | μA |
| Supply Voltage (VS) | - | 2.2 | 5.5 | V |
| Operating Temperature Range | - | -40 | 125 | °C |
| Package Type | - | - | SC70-5, SOT-23-5, SOIC-8, etc. | - |
Key Features
- Low Noise: 7.5 nV/√Hz input voltage noise density and 0.8 μVPP noise from 0.1 Hz to 10 Hz.
- Low Offset Voltage: 5 μV typical input offset voltage.
- Rail-to-Rail Input and Output: Allows for full use of the supply voltage range.
- Low Quiescent Current: 760 μA typical, making it suitable for battery-powered applications.
- Wide Supply Range: Operates from 2.2 V to 5.5 V.
- Excellent PSRR: High power supply rejection ratio for stable operation.
- Space-Saving Packages: Available in SC70-5, SOT-23-5, SOIC-8, and other compact packages.
- Internal ESD Protection: Built-in protection against electrostatic discharge.
Applications
- ADC Buffer: Suitable for driving the inputs of SAR ADCs and high-resolution converters.
- Audio Equipment: Used in audio circuits requiring low noise and high precision.
- Medical Instrumentation: Ideal for medical devices that require high accuracy and low noise.
- Handheld Test Equipment: Suitable for portable test equipment due to its low power consumption.
- Active Filtering: Used in active filter circuits where precision and low noise are critical.
- Sensor Signal Conditioning: Used to condition signals from sensors in various applications.
Q & A
- What is the typical input offset voltage of the OPA376AIDCKRG4?
The typical input offset voltage is 5 μV.
- What is the input voltage noise density of the OPA376AIDCKRG4?
The input voltage noise density is 7.5 nV/√Hz.
- What is the gain-bandwidth product (GBW) of the OPA376AIDCKRG4?
The GBW is 5.5 MHz.
- What is the typical quiescent current of the OPA376AIDCKRG4?
The typical quiescent current is 760 μA.
- What is the operating temperature range of the OPA376AIDCKRG4?
The operating temperature range is from -40°C to 125°C.
- What are the available package types for the OPA376AIDCKRG4?
The device is available in SC70-5, SOT-23-5, SOIC-8, and other packages.
- Does the OPA376AIDCKRG4 have internal ESD protection?
Yes, it has built-in internal ESD protection.
- What is the supply voltage range for the OPA376AIDCKRG4?
The supply voltage range is from 2.2 V to 5.5 V.
- Is the OPA376AIDCKRG4 suitable for battery-powered applications?
Yes, it is suitable due to its low quiescent current and wide supply range.
- What are some common applications of the OPA376AIDCKRG4?
Common applications include ADC buffering, audio equipment, medical instrumentation, handheld test equipment, active filtering, and sensor signal conditioning.
