Overview
The OPA2277UAG4 is a high-precision operational amplifier produced by Texas Instruments. It is part of the OPAx277 series, which replaces the industry standard OP-177. These devices are known for their improved noise performance, wider output voltage swing, and enhanced speed with reduced quiescent current. The OPA2277UAG4 is particularly noted for its ultra-low offset voltage and drift, making it suitable for applications requiring high precision and stability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D) | - |
| Pins | 8 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Offset Voltage | 10 | µV |
| Offset Voltage Drift | ±0.1 | µV/°C |
| Open-Loop Gain | 134 | dB |
| Common-Mode Rejection Ratio | 140 | dB |
| Power-Supply Rejection Ratio | 130 | dB |
| Bias Current | 1 | nA |
| Supply Voltage Range | ±2 V to ±18 V | - |
| Quiescent Current | 800 | µA/amplifier |
Key Features
- Ultra-low offset voltage: 10 µV
- Ultra-low drift: ±0.1 µV/°C
- High open-loop gain: 134 dB
- High common-mode rejection: 140 dB
- High power-supply rejection: 130 dB
- Low bias current: 1-nA maximum
- Wide supply range: ±2 V to ±18 V
- Low quiescent current: 800 µA/amplifier
- Single, dual, and quad versions available
- Replaces OP-07, OP-77, and OP-177
- Unity-gain stable and free from phase inversion and overload problems
Applications
- Analog input modules
- Weigh scales
- Temperature transmitters
- Pressure transmitters
- Data acquisition (DAQ) systems
- Lab and field instrumentation
- Battery testing
Q & A
- What is the offset voltage of the OPA2277UAG4?
The offset voltage of the OPA2277UAG4 is 10 µV.
- What is the operating temperature range of the OPA2277UAG4?
The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the OPA2277UAG4?
The supply voltage range is ±2 V to ±18 V.
- What are the key features of the OPA2277UAG4?
The key features include ultra-low offset voltage, ultra-low drift, high open-loop gain, high common-mode rejection, and high power-supply rejection.
- Is the OPA2277UAG4 unity-gain stable?
- What types of packages are available for the OPA2277UAG4?
The OPA2277UAG4 is available in SOIC (D) and other packages such as PDIP and VSON.
- What are some common applications of the OPA2277UAG4?
- Does the OPA2277UAG4 replace any other operational amplifiers?
- What is the quiescent current of the OPA2277UAG4?
The quiescent current is 800 µA per amplifier.
- Is the OPA2277UAG4 suitable for noisy or high-impedance power supplies?
