Overview
The Texas Instruments OPA27GU is an ultra-low noise, high-precision monolithic operational amplifier. It is designed to offer superior performance in various precision applications. The OPA27GU features laser-trimmed thin-film resistors, which provide excellent long-term voltage offset stability and superior voltage offset compared to common zener-zap techniques. This amplifier is internally compensated for unity-gain stability and is an improved replacement for industry-standard OP-27 and OP-37 operational amplifiers.
Key Specifications
| Specification | Value |
|---|---|
| Package | SOIC (D) with 8 pins |
| Operating Temperature Range | -40°C to 85°C |
| Bandwidth | 8 MHz |
| Slew Rate | 1.9 V/μs |
| Quiescent Current | 5.7 mA |
| Voltage Supply Range | ±8 V to ±44 V DC |
| Input Offset Voltage | 0.22 mV (typ), 100 μV (max) |
| Input Bias Current | 0.15 μA |
| Input Offset Current | 135 nA |
| Noise | 4.5 nV/√Hz at 1 kHz |
| Open-Loop Gain | 117 dB min |
| Common-Mode Rejection | 100 dB min |
| Power-Supply Rejection | 94 dB min |
Key Features
- Ultra-low noise: 4.5 nV/√Hz at 1 kHz
- Low offset voltage: 100 μV max
- Low drift: 0.4 μV/°C
- High open-loop gain: 117 dB min
- High common-mode rejection: 100 dB min
- High power-supply rejection: 94 dB min
- Fits OP-07, OP-05, AD510, and AD517 sockets
- Unique bias current cancellation circuit for stable performance over the full temperature range
Applications
- Precision instrumentation
- Data acquisition
- Test equipment
- Professional audio equipment
- Transducer amplifiers
- Radiation hard equipment
Q & A
- What is the noise level of the OPA27GU?
The OPA27GU has an ultra-low noise level of 4.5 nV/√Hz at 1 kHz. - What is the input offset voltage of the OPA27GU?
The input offset voltage is typically 0.22 mV and a maximum of 100 μV. - What is the operating temperature range of the OPA27GU?
The operating temperature range is -40°C to 85°C. - What is the bandwidth of the OPA27GU?
The bandwidth is 8 MHz. - What is the slew rate of the OPA27GU?
The slew rate is 1.9 V/μs. - What are the typical applications of the OPA27GU?
The OPA27GU is used in precision instrumentation, data acquisition, test equipment, professional audio equipment, transducer amplifiers, and radiation hard equipment. - Is the OPA27GU internally compensated for unity-gain stability?
Yes, the OPA27GU is internally compensated for unity-gain stability. - What is the voltage supply range of the OPA27GU?
The voltage supply range is ±8 V to ±44 V DC. - How does the OPA27GU compare to other operational amplifiers?
The OPA27GU is an improved replacement for industry-standard OP-27 and OP-37 operational amplifiers. - What package type does the OPA27GU come in?
The OPA27GU comes in a SOIC (D) package with 8 pins.
