Overview
The OPA860IDRG4, manufactured by Texas Instruments, is a versatile monolithic component designed for wide-bandwidth systems. This integrated circuit combines a wideband, bipolar operational transconductance amplifier (OTA) and a voltage buffer amplifier, making it suitable for high-performance video, RF, and IF circuitry. The device is self-biased and bipolar, offering a high degree of flexibility in circuit design.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 8-SOIC (0.154", 3.90mm Width) | |
| Bandwidth (Open-Loop, G = +5) | 80 MHz | |
| Slew Rate (OTA) | 900 V/µs | |
| Slew Rate (Buffer) | 4000 V/µs | |
| Transconductance | 95 mA/V | |
| Output Current | ±60 mA | |
| Quiescent Current | 11.2 mA (typical) | |
| Supply Voltage | ±2.5 V to ±6.5 V | |
| Input Common-Mode Voltage Range | ±VS | |
| Differential Input Voltage | ±1.2 V | |
| Storage Temperature Range | –45°C to +85°C | |
| Thermal Resistance (θJA) | 125 °C/W |
Key Features
- Wide bandwidth (80 MHz, open-loop, G = +5) and high slew rate (900 V/µs for OTA, 4000 V/µs for buffer)
- High transconductance (95 mA/V)
- External IQ-control for adjusting bandwidth, quiescent current, and gain
- Includes an uncommitted, closed-loop, unity-gain buffer with 1600 MHz bandwidth
- Low quiescent current (11.2 mA typical)
- Baseline restore circuits for maintaining DC accuracy
- Available in an SO-8 surface-mount package
Applications
- High-performance video and broadcast equipment
- Communications equipment, including RF and IF circuitry
- High-speed data acquisition systems
- Wideband LED driver circuits for fiber optic transmission
- AGC amplifiers and multiplier circuits for capacitive sensors and active filters
- Fast pulse integrators and control loop amplifiers
Q & A
- What is the OPA860IDRG4 used for?
The OPA860IDRG4 is used in wide-bandwidth systems, including high-performance video, RF, and IF circuitry.
- What is the bandwidth of the OPA860IDRG4?
The OPA860IDRG4 has an open-loop bandwidth of 80 MHz.
- What is the slew rate of the OPA860IDRG4?
The slew rate of the OTA is 900 V/µs, and the buffer has a slew rate of 4000 V/µs.
- How can the transconductance of the OPA860IDRG4 be adjusted?
The transconductance can be adjusted with an external resistor, allowing trade-offs in bandwidth, quiescent current, and gain.
- What is the output current capability of the OPA860IDRG4?
The output current capability is ±60 mA.
- What is the typical quiescent current of the OPA860IDRG4?
The typical quiescent current is 11.2 mA.
- What is the supply voltage range for the OPA860IDRG4?
The supply voltage range is ±2.5 V to ±6.5 V.
- What package type is the OPA860IDRG4 available in?
The OPA860IDRG4 is available in an SO-8 surface-mount package.
- What are some common applications of the OPA860IDRG4?
Common applications include high-performance video and broadcast equipment, communications equipment, high-speed data acquisition systems, and wideband LED driver circuits.
- How sensitive is the OPA860IDRG4 to ESD?
The OPA860IDRG4 is susceptible to ESD damage and requires proper handling and installation procedures to prevent damage.
