Overview
The OPA2234U/2K5 is a low-power, precision single-supply operational amplifier produced by Texas Instruments. This dual-channel op-amp is designed for a wide range of applications requiring low power consumption and high precision. It operates over a single supply voltage range of +2.7V to +36V and is specified for operation from –40°C to +85°C, making it suitable for various environmental conditions.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Offset Voltage (VOS) | ±40 | ±100 | ±250 | µV |
| Input Bias Current (IB) | –15 | –30 | –50 | nA |
| Gain-Bandwidth Product (GBW) | 0.35 | MHz | ||
| Slew Rate (SR) | 0.2 | V/µs | ||
| Quiescent Current (IQ) per Channel | 250 | 300 | µA | |
| Operating Temperature Range | –40 | +85 | °C | |
| Total Supply Voltage Range | +2.7 | +36 | V | |
| Output Current (Typ) | 11 | mA | ||
| Common-Mode Rejection Ratio (CMRR) | 86 | 106 | dB | |
| Package Type | SOIC | |||
| Pin Count | 8 |
Key Features
- Low Power Consumption: The OPA2234U/2K5 features a low quiescent current of 250µA to 300µA per channel, making it ideal for battery-powered devices and other low-power applications.
- Precision Performance: It offers high precision with an input offset voltage of ±40µV to ±250µV and a low input bias current.
- Wide Supply Voltage Range: The op-amp can operate over a single supply voltage range of +2.7V to +36V, and it also supports dual supply configurations.
- High CMRR and PSRR: The device has a high common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR), ensuring stable operation in various noise environments.
- High Slew Rate and GBW: With a slew rate of 0.2V/µs and a gain-bandwidth product of 0.35MHz, the OPA2234U/2K5 is suitable for applications requiring fast signal processing.
- Compact Packaging: Available in an 8-pin SOIC package, this op-amp is suitable for space-constrained designs.
Applications
The OPA2234U/2K5 is versatile and can be used in a variety of applications, including:
- Medical Devices: Due to its high precision and low noise, it is suitable for medical equipment such as ECG and EEG monitors.
- Industrial Automation: It can be used in sensor signal conditioning and data acquisition systems.
- Aerospace and Defense: The op-amp's robust performance over a wide temperature range makes it suitable for aerospace and defense applications.
- Consumer Electronics: It can be used in audio equipment, battery-powered devices, and other consumer electronics requiring low power and high precision.
Q & A
- What is the operating temperature range of the OPA2234U/2K5?
The OPA2234U/2K5 is specified for operation from –40°C to +85°C. - What is the typical quiescent current per channel for the OPA2234U/2K5?
The typical quiescent current per channel is 300µA. - What is the gain-bandwidth product (GBW) of the OPA2234U/2K5?
The gain-bandwidth product is 0.35MHz. - What is the slew rate of the OPA2234U/2K5?
The slew rate is 0.2V/µs. - What is the common-mode rejection ratio (CMRR) of the OPA2234U/2K5?
The CMRR is typically 106dB. - What is the package type of the OPA2234U/2K5?
The OPA2234U/2K5 is available in an 8-pin SOIC package. - Can the OPA2234U/2K5 operate on dual supply voltages?
Yes, the OPA2234U/2K5 can operate on dual supply voltages ranging from ±1.35V to ±18V. - What is the typical output current of the OPA2234U/2K5?
The typical output current is 11mA. - Is the OPA2234U/2K5 suitable for high load capacitance applications?
Yes, the OPA2234U/2K5 is suitable for applications with high load capacitance due to its excellent phase margin. - What is the input offset voltage drift of the OPA2234U/2K5?
The input offset voltage drift is typically 0.5µV/°C.
