Overview
The OPA2344EA/2K5G4 is part of the OPA344 series of rail-to-rail CMOS operational amplifiers produced by Texas Instruments. These amplifiers are designed for precision, low-power, and miniature applications. The OPA2344EA is a dual version of the OPA344, offering unity gain stability and a gain-bandwidth product of 1MHz. It operates on a single supply from 2.5V to 5.5V, making it highly versatile and suitable for various applications including general purpose, audio, and data acquisition.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VS = +5.5V, VCM = VS/2 | ±0.2 | ±1 | ±1.2 | mV |
| Quiescent Current (IQ) | VS = 5.5V, IO = 0 | 150 | 200 | 250 | µA |
| Gain-Bandwidth Product | G ≥ 1 | - | 1 | - | MHz |
| Slew Rate | - | - | 0.8 | - | V/µs |
| Total Harmonic Distortion + Noise (THD + N) | - | - | 0.006% | - | % |
| Operating Temperature Range | - | - | -40°C to 85°C | - | °C |
| Supply Voltage Range | - | 2.5 | - | 5.5 | V |
Key Features
- Rail-to-rail input and output
- Low quiescent current: 150µA typical
- Unity gain stable (OPA344 series)
- Available in microSIZE packages: SOT23-5, MSOP-8, TSSOP-14
- Single, dual, and quad versions with identical specifications for design flexibility
- Operating temperature range: –40°C to 85°C
- Low total harmonic distortion + noise: 0.006%
Applications
- PCMCIA cards
- Data acquisition
- Process control
- Audio processing
- Communications
- Active filters
- Test equipment
- Driving sampling analog-to-digital converters
- Providing I/V conversion at the output of D/A converters
Q & A
- What is the typical quiescent current of the OPA2344EA?
The typical quiescent current is 150µA. - What is the gain-bandwidth product of the OPA2344EA?
The gain-bandwidth product is 1MHz. - What is the slew rate of the OPA2344EA?
The slew rate is 0.8V/µs. - What is the total harmonic distortion + noise (THD + N) of the OPA2344EA?
The THD + N is 0.006%. - What is the operating temperature range of the OPA2344EA?
The operating temperature range is –40°C to 85°C. - What are the available package types for the OPA2344EA?
The available packages include SOT23-5, MSOP-8, and TSSOP-14. - Is the OPA2344EA suitable for audio applications?
Yes, it is well suited for audio applications due to its low THD + N and rail-to-rail input and output. - Can the OPA2344EA be used in data acquisition systems?
Yes, it is suitable for data acquisition systems due to its precision and low power consumption. - What is the supply voltage range for the OPA2344EA?
The supply voltage range is from 2.5V to 5.5V. - Is a SPICE macromodel available for the OPA2344EA?
Yes, a SPICE macromodel is available for design analysis and can be downloaded from the Texas Instruments website.
