Overview
The OPA344NA/250 is a single, rail-to-rail CMOS operational amplifier produced by Texas Instruments. It is designed for precision, low-power, and miniature applications. This amplifier is unity gain stable and operates on a single supply from 2.5V to 5.5V, with an input common-mode voltage range that extends 300mV beyond the supplies. The OPA344 is well-suited for general-purpose and audio applications, as well as for driving sampling analog-to-digital converters and providing I/V conversion at the output of D/A converters.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage | 2.7 | 5.5 | V | ||
| 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 | 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 | 85 | °C | ||
| Package Type | SOT-23 (DBV) | ||||
| Pins | 5 |
Key Features
- Rail-to-rail input and output (within 1mV)
- Low quiescent current: 150µA typical
- MicroSIZE packages: SOT23-5, MSOP-8, TSSOP-14
- Gain-bandwidth product: 1MHz for OPA344
- Slew rate: 0.8V/µs
- Total harmonic distortion + noise: 0.006%
Applications
- PCMCIA cards
- Data acquisition
- Process control
- Audio processing
- Communications
- Active filters
- Test equipment
Q & A
- What is the operating voltage range of the OPA344NA/250?
The OPA344NA/250 operates on a single supply from 2.5V to 5.5V.
- What is the typical quiescent current of the OPA344NA/250?
The typical quiescent current is 150µA.
- What is the gain-bandwidth product of the OPA344NA/250?
The gain-bandwidth product is 1MHz for gains greater than or equal to 1.
- What is the slew rate of the OPA344NA/250?
The slew rate is 0.8V/µs.
- What is the total harmonic distortion + noise (THD + N) of the OPA344NA/250?
The THD + N is 0.006%.
- What are the available package types for the OPA344NA/250?
The available packages include SOT23-5, MSOP-8, and TSSOP-14.
- What is the operating temperature range of the OPA344NA/250?
The operating temperature range is from -40°C to 85°C.
- Is the OPA344NA/250 suitable for audio applications?
Yes, it is well-suited for audio applications due to its rail-to-rail input and output and low distortion.
- Can the OPA344NA/250 be used in data acquisition systems?
Yes, it is suitable for data acquisition systems due to its precision and low power consumption.
- Is a SPICE macromodel available for the OPA344NA/250?
Yes, a SPICE macromodel is available for design analysis and can be downloaded from www.ti.com.
