Overview
The OPA847IDR, produced by Texas Instruments, is a high-performance, wideband, ultra-low noise voltage-feedback operational amplifier. This device is designed to offer exceptional gain bandwidth and large signal performance, making it ideal for various high-frequency and low-noise applications. The OPA847IDR features an ultra-low input noise voltage of 0.85nV/√Hz and a high gain bandwidth product of 3.9GHz, ensuring excellent dynamic range and signal integrity. It also includes an optional power shutdown feature, which significantly reduces power consumption when not in use.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Gain Bandwidth Product | 3.9 GHz | |
| Input Noise Voltage | 0.85 nV/√Hz | |
| Harmonic Distortion (5 MHz, 2VPP) | –105 dBc | |
| Slew Rate | 950 V/µs | |
| Input Offset Voltage | ±0.1 mV (max) | |
| Supply Current | 18.1 mA (typ) | |
| Power Supply Range | ±5 V (typ), ±6.5 V (max) | |
| Operating Temperature Range | –40°C to +85°C | |
| Package Types | SO-8, SOT23-6 |
Key Features
- High gain bandwidth product of 3.9 GHz
- Ultra-low input noise voltage of 0.85 nV/√Hz
- Very low distortion: –105 dBc at 5 MHz
- High slew rate of 950 V/µs
- Low supply current of 18.1 mA
- Optional power shutdown feature with low quiescent current
- Stable for gains ≥ 12 V/V
- High DC accuracy with input offset voltage < ±100 µV
Applications
- High dynamic range ADC preamps
- Low noise, wideband transimpedance amplifiers
- Wideband, high gain amplifiers
- Low noise differential receivers
- Ultrasound channel amplifiers
- Differential ADC driver interfaces
Q & A
- What is the gain bandwidth product of the OPA847IDR?
The gain bandwidth product of the OPA847IDR is 3.9 GHz.
- What is the input noise voltage of the OPA847IDR?
The input noise voltage of the OPA847IDR is 0.85 nV/√Hz.
- What is the typical supply current of the OPA847IDR?
The typical supply current of the OPA847IDR is 18.1 mA.
- Does the OPA847IDR have a power shutdown feature?
- What are the typical operating voltage ranges for the OPA847IDR?
The typical operating voltage range for the OPA847IDR is ±5 V, with a maximum operating voltage of ±6.5 V.
- What are the package types available for the OPA847IDR?
The OPA847IDR is available in SO-8 and SOT23-6 package types.
- What is the operating temperature range for the OPA847IDR?
The operating temperature range for the OPA847IDR is –40°C to +85°C.
- What are some common applications of the OPA847IDR?
Common applications include high dynamic range ADC preamps, low noise wideband transimpedance amplifiers, wideband high gain amplifiers, low noise differential receivers, and ultrasound channel amplifiers.
- How stable is the OPA847IDR for different gain settings?
The OPA847IDR is stable for gains ≥ 12 V/V.
- What is the harmonic distortion of the OPA847IDR at 5 MHz?
The harmonic distortion of the OPA847IDR at 5 MHz is –105 dBc.
