Overview
The OPA860IDR, produced by Texas Instruments, is a versatile monolithic component designed for wide-bandwidth systems. It combines a high-performance operational transconductance amplifier (OTA) and a voltage buffer amplifier, making it ideal for various high-speed applications. The device is particularly suited for video, RF, and IF circuitry due to its high slew rate and wide bandwidth capabilities.
Key Specifications
| Parameter | Typical Value | Units |
|---|---|---|
| Bandwidth (Open-Loop, G = +5) | 80 MHz | |
| Bandwidth (Buffer, VO = 1VPP) | 1600 MHz | |
| Slew Rate (OTA, VO = 5V Step) | 3500 V/µs | |
| Slew Rate (Buffer, VO = 1V Step) | 4000 V/µs | |
| Transconductance | 95 mA/V | |
| Output Current | 60 mA | |
| Quiescent Current | 11.2 mA | |
| Power Supply | ±6.5 VDC | |
| Operating Temperature Range | –45°C to +85°C | |
| Package | SO-8 surface-mount |
Key Features
- High slew rate of up to 4000 V/µs in the buffer configuration.
- Wide bandwidth of up to 1600 MHz in the buffer configuration and 80 MHz in the OTA configuration.
- High transconductance of 95 mA/V, adjustable with an external resistor.
- Low quiescent current of 11.2 mA.
- External IQ-control for optimizing bandwidth, quiescent current, and gain trade-offs.
- Included baseline restore circuits and a closed-loop, unity-gain buffer.
- High output current capability of up to 60 mA.
Applications
- Video and broadcast equipment.
- Communications equipment.
- High-speed data acquisition systems.
- Wideband LED drivers for fiber optic transmission.
- AGC amplifiers and multiplier circuits.
- Fast pulse integrators and control loop amplifiers.
- Active filters and capacitive sensors.
Q & A
- What is the OPA860IDR primarily used for?
The OPA860IDR is primarily used for wide-bandwidth systems, including video, RF, and IF circuitry, due to its high slew rate and wide bandwidth capabilities.
- What is the maximum slew rate of the OPA860IDR in buffer configuration?
The maximum slew rate in the buffer configuration is up to 4000 V/µs.
- What is the typical transconductance of the OPA860IDR?
The typical transconductance is 95 mA/V.
- How can the transconductance be adjusted?
The transconductance can be adjusted with an external resistor.
- What is the quiescent current of the OPA860IDR?
The quiescent current is typically 11.2 mA.
- What is the operating temperature range of the OPA860IDR?
The operating temperature range is –45°C to +85°C.
- In what package is the OPA860IDR available?
The OPA860IDR is available in an SO-8 surface-mount package.
- What are some common applications of the OPA860IDR?
Common applications include video and broadcast equipment, communications equipment, high-speed data acquisition systems, and wideband LED drivers.
- Can the OPA860IDR be used in AGC amplifiers?
Yes, the OPA860IDR can be used in AGC amplifiers and multiplier circuits.
- Is the OPA860IDR suitable for high-speed pulse integrators?
Yes, it is suitable for fast pulse integrators and control loop amplifiers.
