Overview
The OPA376AIDBVTG4, 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 a variety of precision and portable applications. The OPA376AIDBVTG4 features rail-to-rail input and output, low offset voltage, and a wide supply range, which makes it suitable for battery-powered applications without regulation.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Offset Voltage (VOS) | 5 | 25 | 25 | μV |
| Input Offset Voltage Drift (dVOS/dT) | 0.26 | 1 | 2 | μV/°C |
| Quiescent Current (IQ) | 760 | 950 | 1 mA | μA |
| Gain Bandwidth Product (GBW) | 5.5 | MHz | ||
| Input Voltage Noise Density (en) | 7.5 | nV/√Hz | ||
| Supply Voltage Range (VS) | 2.2 | 5.5 | V | |
| Operating Temperature Range | –40 | 125 | °C | |
| Input Bias Current (IB) | 0.2 | 10 | 10 | pA |
| Common-Mode Rejection Ratio (CMRR) | 76 | 90 | 90 | dB |
| Output Voltage Swing from Rail | 10 | 50 | mV |
Key Features
- Rail-to-Rail Input and Output: Allows the amplifier to operate with input and output signals that range from the negative to the positive supply rail.
- Low Offset Voltage: Typical offset voltage of 5 μV, ensuring high precision in DC applications.
- Low Noise: Input voltage noise density of 7.5 nV/√Hz and 0.8 μVPP noise from 0.1 Hz to 10 Hz.
- Low Quiescent Current: Typical quiescent current of 760 μA, making it suitable for battery-powered devices.
- Wide Supply Range: Operates from 2.2 V to 5.5 V, allowing flexibility in power supply design.
- High Gain Bandwidth Product: 5.5 MHz, enabling high-frequency applications.
- Space-Saving Packages: Available in SC70, SOT-23, DSBGA, VSSOP, TSSOP, and SOIC packages.
- Internal ESD Protection: Enhances device reliability by protecting against electrostatic discharge.
Applications
- ADC Buffer: Suitable for driving the inputs of SAR ADCs and high-resolution converters.
- Audio Equipment: Ideal for audio applications requiring low noise and high precision.
- Medical Instrumentation: Used in medical devices where precision and low noise are critical.
- Handheld Test Equipment: Suitable for portable test equipment due to its low power consumption.
- Active Filtering: Can be used in active filter circuits requiring high precision and low noise.
- Sensor Signal Conditioning: Ideal for conditioning signals from sensors in various applications.
Q & A
- What is the typical offset voltage of the OPA376AIDBVTG4?
The typical offset voltage is 5 μV.
- What is the quiescent current of the OPA376AIDBVTG4?
The typical quiescent current is 760 μA.
- What is the gain bandwidth product of the OPA376AIDBVTG4?
The gain bandwidth product is 5.5 MHz.
- What is the input voltage noise density of the OPA376AIDBVTG4?
The input voltage noise density is 7.5 nV/√Hz at 1 kHz.
- What is the operating temperature range of the OPA376AIDBVTG4?
The operating temperature range is from –40°C to 125°C.
- What are the available packages for the OPA376AIDBVTG4?
The device is available in SC70, SOT-23, DSBGA, VSSOP, TSSOP, and SOIC packages.
- Does the OPA376AIDBVTG4 have internal ESD protection?
Yes, the device includes internal ESD protection.
- What is the common-mode rejection ratio (CMRR) of the OPA376AIDBVTG4?
The CMRR is typically 90 dB.
- Can the OPA376AIDBVTG4 drive large capacitive loads?
Yes, but stability must be ensured by considering the op amp circuit configuration, layout, gain, and output loading.
- What are some typical applications of the OPA376AIDBVTG4?
Typical applications include ADC buffering, audio equipment, medical instrumentation, handheld test equipment, active filtering, and sensor signal conditioning.
