Overview
The OPA244NA/3K is a single-channel operational amplifier from Texas Instruments, part of the OPA244 series. This amplifier is designed for very low quiescent current (50µA/channel) while achieving excellent bandwidth of 430kHz. It is ideal for battery-powered and portable instrumentation due to its low power consumption and compact packaging. The OPA244NA/3K is available in a tiny 5-lead SOT-23-5 surface-mount package, making it suitable for space-limited applications. It operates from single (+2.2V to +36V) or dual supplies (±1.1V to ±18V), and its input common-mode voltage range includes ground, which is beneficial for many single-supply applications.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VS = ±7.5V, VCM = 0 | ±0.7 | ±1.5 | ±2 | mV |
| Input Bias Current (IB) | VCM = VS/2 | -10 | -25 | nA | |
| Input Offset Current (IOS) | VCM = VS/2 | ±1 | ±10 | nA | |
| Power Supply Rejection Ratio (PSRR) | VS = +2.6V to +36V | 5 | 50 | µV/V | |
| Bandwidth | 430kHz | ||||
| Supply Voltage Range | +2.2V to +36V (Single Supply) | ±1.1V to ±18V (Dual Supply) | |||
| Operating Temperature Range | -40°C to +85°C | ||||
| Package Type | SOT-23-5 |
Key Features
- MicroPOWER: Low quiescent current of 50µA/channel, making it suitable for battery-powered devices.
- Single Supply Operation: Can operate from a single supply voltage of +2.2V to +36V or dual supplies of ±1.1V to ±18V.
- Wide Bandwidth: Achieves a bandwidth of 430kHz.
- MicroSIZE Packages: Available in compact SOT-23-5, MSOP-8, and TSSOP-14 packages for space-limited applications.
- Unity-Gain Stable: Stable in unity gain and free from phase inversion and overload problems.
- Low Noise Performance: Features low input voltage noise and current noise, making it ideal for high accuracy and stability applications.
- High Channel Separation: Offers high channel separation of 140dB, ensuring minimal crosstalk between channels.
Applications
The OPA244NA/3K is suitable for a wide range of general-purpose applications, including:
- Battery-powered and portable instrumentation.
- Single-supply applications where the input common-mode voltage range includes ground.
- High accuracy and low noise signal amplification and processing.
- Space-limited applications due to its compact packaging.
Q & A
- Q: What is the typical offset voltage of the OPA244NA/3K?
A: The OPA244NA/3K typically exhibits an input offset voltage of ±1.5mV.
- Q: What is the bandwidth of the OPA244NA/3K?
A: The bandwidth of the OPA244NA/3K is 430kHz.
- Q: What are the supply voltage ranges for the OPA244NA/3K?
A: The OPA244NA/3K can operate from a single supply voltage of +2.2V to +36V or dual supplies of ±1.1V to ±18V.
- Q: What is the quiescent current of the OPA244NA/3K?
A: The quiescent current of the OPA244NA/3K is 50µA/channel.
- Q: What package types are available for the OPA244NA/3K?
A: The OPA244NA/3K is available in a SOT-23-5 package.
- Q: Is the OPA244NA/3K stable in unity gain?
A: Yes, the OPA244NA/3K is stable in unity gain and free from phase inversion and overload problems.
- Q: What is the operating temperature range of the OPA244NA/3K?
A: The operating temperature range of the OPA244NA/3K is -40°C to +85°C.
- Q: What are some key applications of the OPA244NA/3K?
A: The OPA244NA/3K is suitable for battery-powered and portable instrumentation, single-supply applications, and high accuracy signal amplification.
- Q: Does the OPA244NA/3K have high channel separation?
A: Yes, the OPA244NA/3K offers high channel separation of 140dB.
- Q: Is the OPA244NA/3K suitable for space-limited applications?
A: Yes, the OPA244NA/3K is available in compact packages, making it suitable for space-limited applications.
