Overview
The OPA132UA is a high-speed, FET-input operational amplifier produced by Texas Instruments. This device is part of the OPAx132 series, known for its excellent DC performance and high-speed capabilities. The OPA132UA is particularly suited for applications requiring high source impedance, such as general-purpose, audio, data acquisition, and communications systems. It features a single-channel configuration and is available in an 8-pin SOIC surface-mount package. The amplifier is stable in unity gain and offers excellent dynamic behavior over a wide range of load conditions, including high load capacitance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Brand | Texas Instruments | |
| Amplifier Type | Precision | |
| Mounting Type | Surface Mount | |
| Package Type | SOIC | |
| Power Supply Type | Dual | |
| Number of Channels per Chip | 1 | |
| Pin Count | 8 | |
| Typical Gain Bandwidth Product | 8 MHz | |
| Typical Dual Supply Voltage | ±15 V | |
| Typical Slew Rate | 20 V/µs | |
| Maximum Operating Temperature | +85 °C | |
| Minimum Operating Temperature | -40 °C | |
| Rail to Rail | No | |
| Typical Voltage Gain | 120 dB | |
| Length | 4.9 mm | |
| Width | 3.91 mm | |
| Height | 1.58 mm | |
| Typical Input Voltage Noise Density | 23 nV/√Hz |
Key Features
- High-Speed Performance: The OPA132UA features a high gain bandwidth product of 8 MHz and a slew rate of 20 V/µs, making it suitable for high-speed applications.
- Low Noise and High Open-Loop Gain: It has a low input voltage noise density of 23 nV/√Hz and a high open-loop gain of 120 dB, ensuring high precision and low noise in the output signal.
- Wide Supply Range: The amplifier can operate over a wide supply range from ±2.5V to ±18V, providing flexibility in various application environments.
- Low Input Bias Current: The device has a very low input bias current, which is beneficial for applications with high source impedance.
- Unity Gain Stability: The OPA132UA is stable in unity gain and can handle high load capacitance without oscillation.
- High Common-Mode Rejection: The input cascode circuitry provides excellent common-mode rejection, maintaining low input bias current over a wide input voltage range.
Applications
- General-Purpose Amplification: Suitable for a wide range of general-purpose applications due to its high speed and precision.
- Audio Systems: Ideal for audio applications where high fidelity and low noise are critical.
- Data Acquisition: Used in data acquisition systems where high source impedance is encountered.
- Communications Systems: Applicable in communications systems requiring high-speed and low-noise amplification.
- SAR ADC Driver: Can be used as a driver for Successive Approximation Register (SAR) Analog-to-Digital Converters (ADCs).
- Voltage Reference Buffer: Suitable for buffering voltage references due to its high precision and stability.
- Trans-impedance Amplifier: Can be configured as a trans-impedance amplifier for photodiode and other applications.
- Active Filters and Integrators: Used in active filter and integrator circuits due to its stability and high gain bandwidth product.
Q & A
- What is the typical gain bandwidth product of the OPA132UA?
The typical gain bandwidth product of the OPA132UA is 8 MHz.
- What is the slew rate of the OPA132UA?
The slew rate of the OPA132UA is 20 V/µs.
- What is the operating temperature range of the OPA132UA?
The OPA132UA operates over a temperature range from -40°C to +85°C.
- What is the typical input voltage noise density of the OPA132UA?
The typical input voltage noise density of the OPA132UA is 23 nV/√Hz.
- Is the OPA132UA rail-to-rail?
No, the OPA132UA is not a rail-to-rail operational amplifier.
- What are the package options for the OPA132UA?
The OPA132UA is available in an 8-pin SOIC surface-mount package.
- What is the typical voltage gain of the OPA132UA?
The typical voltage gain of the OPA132UA is 120 dB.
- Can the OPA132UA handle high load capacitance?
Yes, the OPA132UA is stable in unity gain and can handle high load capacitance without oscillation.
- What are some common applications of the OPA132UA?
The OPA132UA is commonly used in general-purpose amplification, audio systems, data acquisition, and communications systems.
- What is the maximum power supply voltage for the OPA132UA?
The maximum power supply voltage for the OPA132UA is 36 V (±18 V).
