Overview
The OPA4251UAG4 is a quad, micro power operational amplifier produced by Texas Instruments. It is part of the OPAx241 and OPAx251 series, which are designed for low power consumption and high performance in various applications. The OPA4251UAG4 is optimized for single-supply operation and is particularly suited for battery-powered, portable devices due to its low quiescent current of 25 μA per amplifier.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (Single Supply) | 2.7 | - | 36 | V |
| Supply Voltage (Dual Supply) | ±1.35 | - | ±18 | V |
| Operating Temperature | -40 | - | 85 | °C |
| Input Offset Voltage | - | - | ±250 | μV |
| Input Offset Voltage Drift | - | - | ±0.6 | μV/°C |
| Power Supply Rejection Ratio | - | - | 124 | dB |
| Open-Loop Gain | - | - | 128 | dB |
| Quiescent Current per Amplifier | - | 25 | - | μA |
| Input Bias Current | - | - | 20 | nA |
| Input Voltage Noise Density | - | - | 65 | nV/√Hz |
Key Features
- Micro power operation with a quiescent current of 25 μA per amplifier.
- Single-supply operation with a wide supply range from 2.7V to 36V and dual-supply operation from ±1.35V to ±18V.
- Rail-to-rail output swing within 50 mV of the supply rails.
- Low input offset voltage and drift.
- High common-mode rejection ratio (CMRR) of 124 dB.
- High open-loop gain of 128 dB.
- Unity-gain stable.
- Available in single, dual, and quad configurations.
Applications
- Battery-operated instruments.
- Portable devices.
- Medical instruments.
- Test equipment.
- General-purpose amplification in various electronic systems.
Q & A
- What is the typical quiescent current of the OPA4251UAG4? The typical quiescent current is 25 μA per amplifier.
- What is the supply voltage range for the OPA4251UAG4? The supply voltage range is from 2.7V to 36V for single supply and ±1.35V to ±18V for dual supply.
- What is the input offset voltage of the OPA4251UAG4? The input offset voltage is typically ±250 μV.
- Is the OPA4251UAG4 unity-gain stable? Yes, the OPA4251UAG4 is unity-gain stable.
- What is the common-mode rejection ratio (CMRR) of the OPA4251UAG4? The CMRR is 124 dB.
- What are the typical applications of the OPA4251UAG4? Typical applications include battery-operated instruments, portable devices, medical instruments, and test equipment.
- What is the open-loop gain of the OPA4251UAG4? The open-loop gain is 128 dB.
- How many amplifiers are in the OPA4251UAG4 package? The OPA4251UAG4 is a quad operational amplifier.
- What is the package type of the OPA4251UAG4? The OPA4251UAG4 is available in a 14-pin SOIC package.
- What is the operating temperature range of the OPA4251UAG4? The operating temperature range is from -40°C to 85°C.
