Overview
The OPA244UA/2K5, produced by Texas Instruments, is a single-channel operational amplifier (op-amp) designed for low quiescent current and high performance. It is part of the OPA244 series, which includes the OPA2244 (dual) and OPA4244 (quad) versions. This op-amp is ideal for battery-powered and portable instrumentation due to its low power consumption and compact packaging. The OPA244UA/2K5 is available in the SOIC-8 package and is fully specified from –40°C to +85°C, with an operating range of –55°C to +125°C.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VS = ±7.5V, VCM = 0 | ±0.7 | ±1.5 | ±2 | mV |
| Quiescent Current (IQ) | IO = 0, TA = –40°C to 85°C | 40 | 50 | 70 | µA |
| Supply Voltage Range | Single Supply | +2.2 | +36 | V | |
| Supply Voltage Range | Dual Supply | ±1.1 | ±18 | V | |
| Bandwidth | 430kHz | ||||
| Input Bias Current (IB) | VCM = VS/2 | –10 | –25 | nA | |
| Channel Separation | 140 | dB | |||
| Operating Temperature Range | –40 | 85 | °C | ||
| Storage Temperature Range | –65 | 150 | °C |
Key Features
- MicroPOWER: Low quiescent current of 50µA per channel.
- Single Supply Operation: Can operate from +2.2V to +36V.
- Dual Supply Operation: Can operate from ±1.1V to ±18V.
- Wide Bandwidth: 430kHz.
- Unity-Gain Stable: Stable in unity gain configuration.
- Low Input Offset Voltage: ±0.7mV to ±2mV.
- High Channel Separation: 140dB.
- Compact Packaging: Available in SOIC-8 package.
- Full Temperature Range: Specified from –40°C to +85°C.
Applications
The OPA244UA/2K5 is suitable for a wide range of general-purpose applications, particularly in battery-powered and portable instrumentation. It is ideal for use in single supply configurations, where the input common-mode voltage range includes ground. This op-amp is also suitable for applications requiring low power consumption and high performance over a wide temperature range.
Common applications include:
- Battery-powered devices
- Portable instrumentation
- Single supply systems
- Low power consumption circuits
Q & A
- What is the quiescent current of the OPA244UA/2K5?
The quiescent current is 50µA per channel.
- What is the operating voltage range for the OPA244UA/2K5?
The OPA244UA/2K5 can operate from a single supply of +2.2V to +36V or from dual supplies of ±1.1V to ±18V.
- What is the bandwidth of the OPA244UA/2K5?
The bandwidth is 430kHz.
- Is the OPA244UA/2K5 unity-gain stable?
- What is the input offset voltage of the OPA244UA/2K5?
The input offset voltage is ±0.7mV to ±2mV.
- What is the channel separation of the OPA244UA/2K5?
The channel separation is 140dB.
- In what package is the OPA244UA/2K5 available?
The OPA244UA/2K5 is available in the SOIC-8 package.
- What is the operating temperature range of the OPA244UA/2K5?
The operating temperature range is –40°C to +85°C.
- What are some common applications for the OPA244UA/2K5?
- How should the power supply pins of the OPA244UA/2K5 be bypassed?
The power supply pins should be bypassed with 0.01µF ceramic capacitors.
