Overview
The OPA698IDR, produced by Texas Instruments, is a wideband, unity-gain stable voltage-feedback operational amplifier (op amp) that features bipolar output voltage limiting. This device is designed to operate with high linearity near the limiting voltages and offers fast recovery from overdrive, making it suitable for high-speed applications. The OPA698IDR is available in an industry-standard SO-8 package and supports a wide range of supply voltages, including ±5V and +5V operation.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Supply Voltage | ±6.5VDC | V |
| –3dB Bandwidth (G = +1) | 450 MHz | MHz |
| Gain-Bandwidth Product (G ≥ +5) | 250 MHz | MHz |
| Slew Rate | 1100 V/µs | V/µs |
| Limiter Voltage Range | ±(VS – 0.7V) | V |
| Limiter Offset Error | ±10 mV | mV |
| Recovery Time from Overdrive | 1 ns | ns |
| Input Bias Current Shift | 3 µA | µA |
| Operating Temperature Range | –40°C to +85°C | °C |
Key Features
- High linearity near limiting voltages
- Fast recovery from overdrive (1 ns)
- Bipolar output voltage limiting with ±10 mV limiting offset error
- Unity-gain stable with a wide bandwidth of 450 MHz
- High slew rate of 1100 V/µs
- Supports ±5V and +5V supply operation
- Available in SO-8 package
Applications
- Fast limiting analog-to-digital converter (ADC) input buffers
- CCD pixel clock stripping
- Video sync stripping
- HF mixers
- IF limiting amplifiers
- AM signal generation
- Nonlinear analog signal processing
Q & A
- What is the primary function of the OPA698IDR? The OPA698IDR is a wideband, unity-gain stable voltage-feedback op amp with bipolar output voltage limiting.
- What is the typical bandwidth of the OPA698IDR at a gain of +1? The –3dB bandwidth at a gain of +1 is 450 MHz.
- What is the slew rate of the OPA698IDR? The slew rate is 1100 V/µs.
- What is the limiting voltage range of the OPA698IDR? The limiting voltage range is ±(VS – 0.7V).
- How quickly does the OPA698IDR recover from overdrive? The recovery time from overdrive is 1 ns.
- What is the input bias current shift in the linear to limited output mode? The input bias current shift is 3 µA.
- In what package is the OPA698IDR available? The OPA698IDR is available in an SO-8 package.
- What are some common applications of the OPA698IDR? Common applications include fast limiting ADC input buffers, CCD pixel clock stripping, video sync stripping, HF mixers, IF limiting amplifiers, AM signal generation, and nonlinear analog signal processing.
- What is the operating temperature range of the OPA698IDR? The operating temperature range is –40°C to +85°C.
- What is the supply voltage range for the OPA698IDR? The supply voltage range is ±6.5VDC.
