Overview
The OPA376AIDRG4 is a precision operational amplifier from Texas Instruments, known for its low noise, low quiescent current, and high dc precision. This device is part of the OPAx376 series, which includes single (OPA376), dual (OPA2376), and quad (OPA4376) versions. The OPA376AIDRG4 is particularly suited for applications requiring high accuracy and low power consumption, making it ideal for portable and precision electronics.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit |
|---|---|---|---|
| Offset Voltage | 5 μV | 25 μV | μV |
| Input Voltage Noise Density | 7.5 nV/√Hz | nV/√Hz | |
| Quiescent Current per Channel | 760 μA | 950 μA | μA |
| Gain Bandwidth Product | 5.5 MHz | MHz | |
| Slew Rate | 2 V/μs | V/μs | |
| Supply Voltage Range | 2.2 V to 5.5 V | V | |
| Operating Temperature Range | -40°C to +125°C | °C | |
| Common-Mode Rejection Ratio (CMRR) | 90 dB (typical) | 76 dB (minimum) | dB |
| Input Bias Current | 0.2 pA (typical) | 10 pA (maximum) | pA |
| Output Current | 30 mA (typical) | mA | |
| Package Type | SOIC-8 |
Key Features
- Rail-to-Rail Input and Output: Allows for full-range input and output swing, enhancing the device's versatility in various applications.
- Low Noise: Features a low input voltage noise density of 7.5 nV/√Hz, making it suitable for high-precision and low-noise applications.
- Low Quiescent Current: With a typical quiescent current of 760 μA, this device is energy-efficient and ideal for battery-powered devices.
- High DC Precision: Offers low offset voltage (5 μV typical) and high common-mode rejection ratio (CMRR of 90 dB typical), ensuring high accuracy in dc applications.
- Wide Supply Range: Operates over a supply voltage range of 2.2 V to 5.5 V, making it compatible with a variety of power sources.
- Compact Packages: Available in space-saving packages such as SOIC-8, SOT-23, SC70, and others, which are beneficial for dense board designs.
Applications
- ADC Buffer: Suitable for buffering analog-to-digital converter inputs due to its low noise and high precision.
- Audio Equipment: Used in audio circuits where low noise and high fidelity are critical.
- Medical Instrumentation: Ideal for medical devices requiring high accuracy and low noise.
- Handheld Test Equipment: Perfect for portable test equipment due to its low power consumption and compact packaging.
- Active Filtering: Used in active filter circuits where precision and low noise are essential.
- Sensor Signal Conditioning: Suitable for conditioning signals from various sensors in industrial and automotive applications.
Q & A
- What is the typical quiescent current of the OPA376AIDRG4?
The typical quiescent current is 760 μA per channel.
- What is the input voltage noise density of the OPA376AIDRG4?
The input voltage noise density is 7.5 nV/√Hz at 1 kHz.
- What is the gain bandwidth product of the OPA376AIDRG4?
The gain bandwidth product is 5.5 MHz.
- What is the operating temperature range of the OPA376AIDRG4?
The operating temperature range is -40°C to +125°C.
- What types of packages are available for the OPA376AIDRG4?
The OPA376AIDRG4 is available in SOIC-8 packages among others.
- Is the OPA376AIDRG4 suitable for battery-powered devices?
Yes, it is suitable due to its low quiescent current and wide supply voltage range.
- What is the common-mode rejection ratio (CMRR) of the OPA376AIDRG4?
The CMRR is typically 90 dB and a minimum of 76 dB.
- Can the OPA376AIDRG4 be used in audio equipment?
Yes, it is suitable for audio applications due to its low noise and high fidelity.
- Is the OPA376AIDRG4 EMI hardened?
Yes, the OPA376AIDRG4 has EMI hardened features.
- What is the slew rate of the OPA376AIDRG4?
The slew rate is typically 2 V/μs.
