Overview
The OPA277UA/2K5G4 is a precision operational amplifier manufactured by Texas Instruments. It belongs to the OPAx277 series, which replaces the industry standard OP-177. This amplifier offers improved noise performance, a wider output voltage swing, and is twice as fast with half the quiescent current compared to its predecessor. It is designed for high-precision and low-noise applications, making it ideal for use in precision instrumentation, data acquisition systems, and sensor signal conditioning.
Key Specifications
| Specification | Value |
|---|---|
| Package/Case | 8-SOIC (0.154", 3.90mm Width) |
| Supply Voltage Range | ±2 V to ±18 V |
| Quiescent Current | 800 μA/amplifier |
| Input Offset Voltage | Ultralow offset voltage |
| Input Offset Drift | ±0.1 μV/°C |
| Input Bias Current | 1 nA maximum |
| Bandwidth | 1.1 MHz |
| Common-Mode Rejection Ratio | High |
| Power Supply Rejection Ratio | High |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- Ultralow offset voltage and drift
- Low input bias current (1 nA maximum)
- Wide supply voltage range (±2 V to ±18 V)
- Low quiescent current (800 μA/amplifier)
- High common-mode rejection and power supply rejection ratios
- Unity-gain stable and free from phase inversion and overload problems
- Single, dual, and quad versions available with identical specifications
- High accuracy and low noise performance
Applications
- Precision instrumentation
- Data acquisition systems
- Transducer amplifiers
- Bridge amplifiers
- Temperature measurements
- Strain gage amplifiers
- Precision integrators
- Battery-powered instruments
- Test equipment
- Medical equipment
- Industrial control systems
Q & A
- What is the OPA277UA/2K5G4 used for?
The OPA277UA/2K5G4 is used in high-precision and low-noise applications such as precision instrumentation, data acquisition systems, and sensor signal conditioning.
- What is the supply voltage range of the OPA277UA/2K5G4?
The supply voltage range is ±2 V to ±18 V.
- What is the quiescent current of the OPA277UA/2K5G4?
The quiescent current is 800 μA per amplifier.
- Does the OPA277UA/2K5G4 have low input bias current?
Yes, it has a low input bias current of 1 nA maximum.
- What is the bandwidth of the OPA277UA/2K5G4?
The bandwidth is 1.1 MHz.
- Is the OPA277UA/2K5G4 unity-gain stable?
Yes, it is unity-gain stable and free from phase inversion and overload problems.
- What are the available package types for the OPA277UA/2K5G4?
The available package types include SOIC (8-pin), among others.
- What is the operating temperature range of the OPA277UA/2K5G4?
The operating temperature range is -40°C to 85°C.
- Can the OPA277UA/2K5G4 be used in battery-powered instruments?
Yes, it can be used in battery-powered instruments due to its low quiescent current.
- Is the OPA277UA/2K5G4 RoHS compliant?
Yes, the OPA277UA/2K5G4 is RoHS compliant.
