Overview
The OPA2244EA/250, manufactured by Texas Instruments, is a dual-channel operational amplifier designed for low power consumption and high performance. This device is part of the OPA2244 series, which includes the OPA244 (single) and OPA4244 (quad) op amps. The OPA2244EA/250 is ideal for battery-powered and portable instrumentation due to its low quiescent current of 50µA per channel and wide supply voltage range.
The amplifier is unity-gain stable and features completely independent circuitry for each channel, ensuring low crosstalk and freedom from interaction even when overdriven or overloaded. It operates from a single supply of 2.2V to 36V or dual supplies of ±1.1V to ±18V, making it versatile for various applications.
Key Specifications
| Parameter | Condition | Min | Typical | 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 |
| Channel Separation | - | 140 | - | - | dB |
| Supply Current (IQ) | - | - | 50 | - | µA/channel |
| Output Current per Channel | - | - | 25 | - | mA |
| Bandwidth | - | - | 430kHz | - | - |
| Slew Rate | - | - | 0.16 V/µs | - | - |
| Operating Temperature | - | -40°C | - | 85°C | - |
| Supply Voltage Range | - | 2.2V to 36V | - | - | - |
| Dual Supply Voltage Range | - | ±1.1V to ±18V | - | - | - |
| Package | - | - | 8-TSSOP, 8-MSOP | - | - |
Key Features
- Low quiescent current: 50µA per channel, making it suitable for battery-powered devices.
- Wide supply voltage range: Single supply from 2.2V to 36V and dual supplies from ±1.1V to ±18V.
- High bandwidth: 430kHz, ensuring good performance in various applications.
- Low input bias current: Typically -25nA, reducing the impact on input signals.
- High channel separation: 140dB, minimizing crosstalk between channels.
- Unity-gain stable, simplifying circuit design.
- MicroSIZE packages: Available in 8-TSSOP and 8-MSOP, ideal for space-limited applications.
- Operating temperature range: -40°C to 85°C, suitable for a wide range of environmental conditions.
Applications
The OPA2244EA/250 is suitable for a wide range of general-purpose applications, particularly in scenarios where low power consumption and high performance are critical. Some key applications include:
- Battery-powered and portable instrumentation.
- Medical devices requiring low power and high accuracy.
- Industrial control systems where space and power efficiency are important.
- Aerospace and defense applications needing reliable and low-power op amps.
- Automotive electronics where robust performance over a wide temperature range is necessary.
Q & A
- What is the quiescent current of the OPA2244EA/250?
The quiescent current is 50µA per channel.
- What is the supply voltage range for the OPA2244EA/250?
The supply voltage range is from 2.2V to 36V for single supply and ±1.1V to ±18V for dual supplies.
- What is the bandwidth of the OPA2244EA/250?
The bandwidth is 430kHz.
- What is the slew rate of the OPA2244EA/250?
The slew rate is 0.16 V/µs.
- What are the package options for the OPA2244EA/250?
The package options are 8-TSSOP and 8-MSOP.
- What is the operating temperature range for the OPA2244EA/250?
The operating temperature range is -40°C to 85°C.
- Is the OPA2244EA/250 unity-gain stable?
Yes, the OPA2244EA/250 is unity-gain stable.
- What is the input bias current of the OPA2244EA/250?
The input bias current is typically -25nA.
- What is the channel separation of the OPA2244EA/250?
The channel separation is 140dB.
- Is the OPA2244EA/250 RoHS compliant?
Yes, the OPA2244EA/250 is RoHS compliant.
