Overview
The OPA847IDBVT is a wideband, ultra-low noise voltage feedback operational amplifier produced by Texas Instruments. It combines very high gain bandwidth and large signal performance with an ultra-low input noise voltage of 0.85nV/√Hz, while operating on a relatively low supply current of 18.1mA. The amplifier also features an optional power shutdown pin, which when pulled low, disables the amplifier and reduces the supply current to less than 1% of its powered-up value. This makes it highly suitable for applications where power saving is critical.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Input Voltage Noise | 0.85 | nV/√Hz |
| Gain Bandwidth Product | 3.9 | GHz |
| Distortion | -105 | dBc (at 5MHz) |
| Slew Rate | 950 | V/µs |
| DC Accuracy (VIO) | ±100 | µV |
| Supply Current | 18.1 | mA |
| Shutdown Power | 2 | mW |
| Power Supply Range | ±6.5 | VDC |
| Operating Temperature Range | -40°C to +85°C | |
| Storage Temperature Range | -65°C to +125°C |
Key Features
- Ultra-low input voltage noise of 0.85nV/√Hz
- Very low distortion of -105dBc at 5MHz
- High gain bandwidth product of 3.9GHz
- High slew rate of 950V/µs
- High DC accuracy with input offset voltage (VIO) less than ±100µV
- Low supply current of 18.1mA
- Low shutdown power of 2mW
- Optional power shutdown pin for power saving
- Stable for gains ≥ 12
Applications
- Sensing & Instrumentation
- Signal Processing
- Test & Measurement
- High Dynamic Range ADC Preamplifiers
- Low Noise, Wideband Transimpedance Amplifiers
- Wideband, High Gain Amplifiers
- Low Noise Differential Receivers
- Ultrasound Channel Amplifiers
Q & A
- What is the input voltage noise of the OPA847IDBVT?
The input voltage noise of the OPA847IDBVT is 0.85nV/√Hz.
- What is the gain bandwidth product of the OPA847IDBVT?
The gain bandwidth product of the OPA847IDBVT is 3.9GHz.
- What is the distortion level of the OPA847IDBVT at 5MHz?
The distortion level of the OPA847IDBVT at 5MHz is -105dBc.
- What is the slew rate of the OPA847IDBVT?
The slew rate of the OPA847IDBVT is 950V/µs.
- What is the DC accuracy (VIO) of the OPA847IDBVT?
The DC accuracy (VIO) of the OPA847IDBVT is less than ±100µV.
- What is the supply current of the OPA847IDBVT?
The supply current of the OPA847IDBVT is 18.1mA.
- What is the shutdown power of the OPA847IDBVT?
The shutdown power of the OPA847IDBVT is 2mW.
- Does the OPA847IDBVT have an optional power shutdown feature?
Yes, the OPA847IDBVT includes an optional power shutdown pin that disables the amplifier when pulled low.
- What are some common applications of the OPA847IDBVT?
The OPA847IDBVT is commonly used in sensing and instrumentation, signal processing, test and measurement, high dynamic range ADC preamplifiers, low noise wideband transimpedance amplifiers, and more.
- What is the operating temperature range of the OPA847IDBVT?
The operating temperature range of the OPA847IDBVT is -40°C to +85°C.
