Overview
The OPA2107AU/2K5G4 is a precision dual operational amplifier produced by Texas Instruments. This component offers high-performance Difet (Dielectrically Isolated FET) technology, providing low noise, low input bias current, and excellent dc performance. It is designed to be cost-effective and space-efficient, making it suitable for a wide range of precision and low-noise analog circuitry applications. The OPA2107AU/2K5G4 is particularly useful for upgrading the performance of designs currently using BIFET type amplifiers.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage | VCM = 0V | 0.1 | 1 | 1 | mV |
| Average Drift Over Specified Temperature | 3 | 10 | 10 | µV/°C | |
| Input Bias Current | VCM = 0V | 4 | 10 | 10 | pA |
| Voltage Noise at 10kHz | 8 | nV/√Hz | |||
| Supply Voltage | ±4.5 | ±18 | V | ||
| Operating Temperature | –25 | +85 | °C | ||
| Slew Rate | G = +1 | 13 | 18 | V/µs | |
| Gain Bandwidth Product | G = 100 | 4.5 | MHz | ||
| Output Voltage (RL = 2kΩ) | ±11 | ±12 | V | ||
| Package | 8-SOIC |
Key Features
- Low Noise: 8nV/√Hz at 10kHz, making it suitable for high-precision applications.
- Low Input Bias Current: 10pA max, significantly lower than BIFET op amps.
- Low Drift: 10µV/°C max, ensuring stable performance over temperature changes.
- Fast Settling Time: 2µs to 0.01%, ideal for applications requiring quick response times.
- Unity-Gain Stable: Easy to use in a variety of applications without stability issues.
- High Common-Mode Rejection Ratio (CMRR): 80 dB, providing good immunity to common-mode noise.
- High Power Supply Rejection Ratio (PSRR): 80 dB, ensuring minimal impact from power supply variations.
Applications
- Data Acquisition: Suitable for precision data acquisition systems.
- DAC Output Amplifiers: Ideal for driving the output of digital-to-analog converters.
- Optoelectronics: Used in optoelectronic circuits requiring low noise and high precision.
- High-Impedance Sensor Amps: Excellent for amplifying signals from high-impedance sensors.
- High-Performance Audio Circuitry: Used in audio applications requiring low noise and high fidelity.
- Medical Equipment, CT Scanners: Suitable for medical devices where precision and low noise are critical.
Q & A
- What is the typical input offset voltage of the OPA2107AU/2K5G4?
The typical input offset voltage is 1 mV.
- What is the maximum input bias current of the OPA2107AU/2K5G4?
The maximum input bias current is 10 pA.
- What is the voltage noise at 10kHz for the OPA2107AU/2K5G4?
The voltage noise at 10kHz is 8 nV/√Hz.
- What is the operating temperature range for the OPA2107AU/2K5G4?
The operating temperature range is –25°C to +85°C.
- What is the slew rate of the OPA2107AU/2K5G4?
The slew rate is 13 to 18 V/µs.
- What is the gain bandwidth product of the OPA2107AU/2K5G4?
The gain bandwidth product is 4.5 MHz.
- What is the output voltage range for the OPA2107AU/2K5G4 with a 2kΩ load?
The output voltage range is ±11 to ±12 V.
- In what package is the OPA2107AU/2K5G4 available?
The OPA2107AU/2K5G4 is available in an 8-SOIC package.
- What are some common applications of the OPA2107AU/2K5G4?
Common applications include data acquisition, DAC output amplifiers, optoelectronics, high-impedance sensor amps, high-performance audio circuitry, and medical equipment.
- Why is the OPA2107AU/2K5G4 considered unity-gain stable?
The OPA2107AU/2K5G4 is unity-gain stable due to its excellent phase margin, making it easy to use in a variety of applications without stability issues.
