Overview
The OPA2277UG4 is a high-precision operational amplifier produced by Texas Instruments, under the legacy Burr-Brown brand. This device is part of the OPAx277 series, which replaces industry standards such as the OP-07, OP-77, and OP-177. It is known for its ultra-low offset voltage, low drift, and high open-loop gain, making it suitable for a wide range of precision applications.
Key Specifications
| Parameter | Value |
|---|---|
| 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 (maximum) |
| Supply Voltage Range | ±2 V to ±18 V |
| Quiescent Current | 800 μA/amplifier |
| Bandwidth | 1 MHz |
| Slew Rate | 0.8 V/μs |
| Operating Temperature Range | -40°C to 85°C |
| Package Types | SOIC-8, PDIP-8, VSON-8 |
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 ratio: 140 dB
- High power-supply rejection ratio: 130 dB
- Low bias current: 1 nA (maximum)
- Wide supply voltage range: ±2 V to ±18 V
- Low quiescent current: 800 μA/amplifier
- Single, dual, and quad versions available
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 OPA2277UG4? The offset voltage is 10 μV.
- What is the drift of the OPA2277UG4? The drift is ±0.1 μV/°C.
- What is the open-loop gain of the OPA2277UG4? The open-loop gain is 134 dB.
- What is the common-mode rejection ratio of the OPA2277UG4? The common-mode rejection ratio is 140 dB.
- What is the power-supply rejection ratio of the OPA2277UG4? The power-supply rejection ratio is 130 dB.
- What is the bias current of the OPA2277UG4? The bias current is 1 nA (maximum).
- What is the supply voltage range of the OPA2277UG4? The supply voltage range is ±2 V to ±18 V.
- What is the quiescent current of the OPA2277UG4? The quiescent current is 800 μA/amplifier.
- What are the typical applications of the OPA2277UG4? Typical applications include analog input modules, weigh scales, temperature transmitters, pressure transmitters, DAQ systems, lab and field instrumentation, and battery testing.
- What package types are available for the OPA2277UG4? The available package types are SOIC-8, PDIP-8, and VSON-8.
