Overview
The OPA376AIDCKT, part of the OPAx376 family, is a low-noise, low quiescent current, precision operational amplifier manufactured by Texas Instruments. This device is notable for its outstanding DC precision and AC performance, making it ideal for a variety of precision and portable applications. The OPA376AIDCKT operates on a single power supply with a voltage range of 2.2 V to 5.5 V and features rail-to-rail input and output, low offset voltage, and a gain-bandwidth product of 5.5 MHz. The device is also characterized by its low noise, excellent power supply rejection ratio (PSRR), and the ability to drive large capacitive loads, making it suitable for battery-powered applications without regulation.
Key Specifications
| Parameter | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Offset Voltage (VOS) | 5 μV | 0 μV | 25 μV | μV |
| Input Bias Current (IB) | 0.2 pA | 0 pA | 10 pA | pA |
| Input Voltage Noise Density (en) | 7.5 nV/√Hz | - | - | nV/√Hz |
| Gain Bandwidth Product (GBW) | 5.5 MHz | - | - | MHz |
| Slew Rate (SR) | 2 V/μs | - | - | V/μs |
| Quiescent Current (IQ) | 760 μA | - | 950 μA | μA |
| Supply Voltage (VS) | - | 2.2 V | 5.5 V | V |
| Operating Temperature Range | - | -40°C | 125°C | °C |
| Package | 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: Typical offset voltage of 5 μV.
- Rail-to-Rail Input and Output: Allows for full use of the supply voltage range.
- Low Quiescent Current: Typical quiescent current of 760 μA.
- Wide Supply Range: Operates from 2.2 V to 5.5 V.
- Excellent PSRR: High power supply rejection ratio.
- Internal ESD Protection: Protects against electrostatic discharge on all pins.
- Space-Saving Packages: Available in SC70, SOT-23, DSBGA, VSSOP, and SOIC packages.
Applications
- ADC Buffer: Suitable for driving the inputs of SAR ADCs and high-resolution converters.
- Audio Equipment: Ideal for low-noise audio applications.
- Medical Instrumentation: Used in medical devices requiring high precision and low noise.
- Handheld Test Equipment: Suitable for battery-powered test equipment.
- Active Filtering: Well-suited for filter applications requiring wide bandwidth and low noise.
- Sensor Signal Conditioning: Used in sensor signal conditioning due to its high precision and low noise.
Q & A
- What is the typical offset voltage of the OPA376AIDCKT?
The typical offset voltage is 5 μV. - What is the gain-bandwidth product of the OPA376AIDCKT?
The gain-bandwidth product is 5.5 MHz. - What is the typical quiescent current of the OPA376AIDCKT?
The typical quiescent current is 760 μA. - What is the operating temperature range of the OPA376AIDCKT?
The operating temperature range is from -40°C to 125°C. - What types of packages are available for the OPA376AIDCKT?
It is available in SC70, SOT-23, DSBGA, VSSOP, and SOIC packages. - Does the OPA376AIDCKT have internal ESD protection?
Yes, it has internal ESD protection on all pins. - What is the input voltage noise density of the OPA376AIDCKT?
The input voltage noise density is 7.5 nV/√Hz. - Can the OPA376AIDCKT drive large capacitive loads?
Yes, it can drive large capacitive loads. - What are some common applications of the OPA376AIDCKT?
Common applications include ADC buffering, audio equipment, medical instrumentation, handheld test equipment, active filtering, and sensor signal conditioning. - What is the slew rate of the OPA376AIDCKT?
The slew rate is 2 V/μs.
