Overview
The OPA859IDSGR is a high-performance operational amplifier produced by Texas Instruments. It is designed for wideband, low-noise applications, particularly in transimpedance and voltage amplifier configurations. This device features CMOS inputs, which provide ultra-low bias current and low input voltage noise, making it ideal for high-speed and sensitive applications.
The OPA859IDSGR operates over a supply voltage range of 3.3 V to 5.25 V and is packaged in an 8-pin WSON package with an exposed thermal pad. It is optimized for use in optical time-of-flight (ToF) systems, high-speed transimpedance amplifiers, and other applications requiring high bandwidth and low noise.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Unity-Gain Bandwidth | 1.8 | GHz | ||
| Gain Bandwidth Product | 900 | MHz | ||
| Input Voltage Noise | 3.3 | nV/√Hz | ||
| Bias Current | 10 | pA | ||
| Slew Rate | 1150 | V/µs | ||
| Common-Mode Input Capacitance | 0.6 | pF | ||
| Differential Input Capacitance | 0.2 | pF | ||
| Supply Voltage Range | 3.3 | 5.25 | V | |
| Quiescent Current | 18 | 20.5 | 24 | mA |
| Operating Temperature Range | -40 | 125 | °C |
Key Features
- High unity-gain bandwidth of 1.8 GHz and gain bandwidth product of 900 MHz.
- Ultra-low bias current MOSFET inputs of 10 pA.
- Low input voltage noise of 3.3 nV/√Hz.
- High slew rate of 1150 V/µs.
- Low input capacitance with common-mode input capacitance of 0.6 pF and differential input capacitance of 0.2 pF.
- Wide input common-mode range, including negative supply.
- 2.5 VPP output swing in transimpedance amplifier (TIA) configuration.
- Supply voltage range from 3.3 V to 5.25 V.
- Quiescent current of 20.5 mA.
- 8-Pin WSON package with an exposed thermal pad.
- Operating temperature range from -40°C to +125°C.
Applications
- High-speed transimpedance amplifiers.
- Laser distance measurement.
- CCD output buffer.
- High-speed buffer.
- Optical time domain reflectometry (OTDR).
- High-speed active filter.
- 3D scanner.
- Silicon photomultiplier (SiPM) buffer amplifier.
- Photomultiplier tube post amplifier.
Q & A
- What is the unity-gain bandwidth of the OPA859IDSGR?
The unity-gain bandwidth of the OPA859IDSGR is 1.8 GHz.
- What is the input voltage noise of the OPA859IDSGR?
The input voltage noise of the OPA859IDSGR is 3.3 nV/√Hz.
- What is the bias current of the OPA859IDSGR?
The bias current of the OPA859IDSGR is 10 pA.
- What is the slew rate of the OPA859IDSGR?
The slew rate of the OPA859IDSGR is 1150 V/µs.
- What is the supply voltage range of the OPA859IDSGR?
The supply voltage range of the OPA859IDSGR is from 3.3 V to 5.25 V.
- What is the quiescent current of the OPA859IDSGR?
The quiescent current of the OPA859IDSGR is 20.5 mA.
- What is the operating temperature range of the OPA859IDSGR?
The operating temperature range of the OPA859IDSGR is from -40°C to +125°C.
- What are some common applications of the OPA859IDSGR?
The OPA859IDSGR is commonly used in high-speed transimpedance amplifiers, laser distance measurement, CCD output buffers, and other high-speed applications.
- What package type is the OPA859IDSGR available in?
The OPA859IDSGR is available in an 8-pin WSON package with an exposed thermal pad.
- How does the OPA859IDSGR perform in terms of input capacitance?
The OPA859IDSGR has low input capacitance, with a common-mode input capacitance of 0.6 pF and a differential input capacitance of 0.2 pF.
