Overview
The OPA132UA/2K5 from Texas Instruments is a high-speed FET-input operational amplifier that offers excellent DC performance and high-speed capabilities. This device is part of the OPAx132 series, which includes single, dual, and quad versions, all with identical specifications for maximum design flexibility. The OPA132UA is particularly suited for general-purpose, audio, data acquisition, and communications applications, especially where high source impedance is encountered. It is known for its high slew rate, wide bandwidth, and fast settling time, making it an excellent choice for a variety of applications.
Key Specifications
| Parameter | Test Conditions | MIN | TYP | MAX | Unit |
|---|---|---|---|---|---|
| Offset Voltage (VOS) | ±0.2 | ±0.5 | ±2 | mV | |
| Input Offset Voltage Drift (dVOS/dT) | TA = –40°C to +85°C | ±2 | ±10 | μV/°C | |
| Power-Supply Rejection Ratio (PSRR) | ±2.5V ≤ VS ≤ ±18V | ±5 | ±15 | ±30 | μV/V |
| Input Bias Current (IB) | ±5 | ±50 | pA | ||
| Gain Bandwidth Product (GBW) | 8 | MHz | |||
| Slew Rate (SR) | ±20 | V/μs | |||
| Settling Time | 10V step, G = 1, CL = 100pF | 0.7 | 1 | μs (0.1%, 0.01% respectively) | |
| Total Harmonic Distortion plus Noise (THD+N) | f = 1kHz, G = 1, VO = 3.5Vrms, RL = 2kΩ | 0.0008% | |||
| Output Voltage (VO) | RL = 10kΩ | (V+) – 1.2 | (V+) – 0.9 | V | |
| Quiescent Current (IQ) | IO = 0mA | ±4 | ±4.8 | mA | |
| Operating Temperature Range | –40°C | +85°C | °C |
Key Features
- High-speed operation with a gain bandwidth product of 8MHz and a slew rate of ±20V/μs.
- Excellent DC performance, including low input offset voltage (±0.2mV to ±2mV) and low input offset voltage drift (±2μV/°C to ±10μV/°C).
- Low input bias current (±5pA to ±50pA) and input offset current, making it suitable for applications with high source impedance.
- Unity-gain stable and provides excellent dynamic behavior over a wide range of load conditions, including high load capacitance.
- Completely independent circuitry in dual and quad versions, ensuring minimal crosstalk and no interaction between channels even when overdriven or overloaded.
- Operates with power supplies from ±2.5V to ±18V, with specifications remaining largely unchanged throughout the full operating voltage range.
- Available in 8-pin SOIC surface-mount packages for the single version, and additional package options for dual and quad versions.
Applications
The OPA132UA/2K5 is ideal for a variety of applications, including:
- General-purpose amplification
- Audio applications, where high fidelity and low noise are critical
- Data acquisition systems, requiring high precision and speed
- Communications applications, where high source impedance is often encountered
- High-voltage industrial applications, benefiting from the device's wide bandwidth and high capacitive load drive capabilities
Q & A
- What is the gain bandwidth product of the OPA132UA/2K5?
The gain bandwidth product (GBW) of the OPA132UA/2K5 is 8MHz.
- What is the slew rate of the OPA132UA/2K5?
The slew rate of the OPA132UA/2K5 is ±20V/μs.
- What is the input offset voltage range for the OPA132UA/2K5?
The input offset voltage (VOS) for the OPA132UA/2K5 ranges from ±0.2mV to ±2mV.
- What is the operating temperature range for the OPA132UA/2K5?
The OPA132UA/2K5 operates over a temperature range of –40°C to +85°C.
- What are the power supply voltage ranges for the OPA132UA/2K5?
The OPA132UA/2K5 can operate with power supplies from ±2.5V to ±18V.
- What is the quiescent current per amplifier for the OPA132UA/2K5?
The quiescent current (IQ) per amplifier for the OPA132UA/2K5 is ±4mA to ±4.8mA.
- Is the OPA132UA/2K5 stable in unity gain?
Yes, the OPA132UA/2K5 is stable in unity gain and provides excellent dynamic behavior over a wide range of load conditions.
- What are the typical applications for the OPA132UA/2K5?
The OPA132UA/2K5 is typically used in general-purpose amplification, audio applications, data acquisition systems, communications, and high-voltage industrial applications.
- What package options are available for the OPA132UA/2K5?
The OPA132UA/2K5 is available in an 8-pin SOIC surface-mount package.
- How does the OPA132UA/2K5 handle high load capacitance?
The OPA132UA/2K5 can drive high capacitive loads and is stable over a wide range of load conditions, including high load capacitance.
