Overview
The LM318DR is a high-performance operational amplifier produced by Texas Instruments. It is part of the LM318 series, which includes precision, fast operational amplifiers designed for applications requiring wide bandwidth and high slew rate. These amplifiers offer a significant increase in speed compared to general-purpose operational amplifiers without compromising DC performance. The LM318DR is particularly notable for its internal unity-gain frequency compensation, which simplifies its application by eliminating the need for external frequency compensation components.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SOIC (D) | - |
| Pins | 8 | - |
| Operating Temperature Range | 0 to 70 | °C |
| Small Signal Bandwidth | 15 | MHz (Typ) |
| Slew Rate | 50 | V/µs (Min) |
| Bias Current | 250 | nA (Max) |
| Supply Voltage Range | ±5 V to ±20 V | - |
| Common Mode Rejection Ratio (CMRR) | 100 | dB (Typ) |
| Input Offset Voltage | 10 | mV (Max) |
| Output Current | 20 | mA (Typ) |
| Total Supply Voltage | 10 to 40 | V |
Key Features
- Internal unity-gain frequency compensation, eliminating the need for external components.
- Input and output overload protection.
- Same pin assignments as general-purpose operational amplifiers, facilitating ease of use and compatibility.
- High slew rate of 50 V/µs, making it suitable for high-speed applications.
- Wide bandwidth of 15 MHz, ideal for applications requiring high-frequency performance.
- External frequency compensation can be added for optimum performance, including feed-forward compensation to boost slew rate and bandwidth.
Applications
The LM318DR is versatile and can be used in a variety of high-speed applications, including:
- A/D converters
- Oscillators
- Active filters
- Sample-and-hold circuits
- General-purpose amplifiers requiring high bandwidth and slew rate.
Q & A
- What is the typical small signal bandwidth of the LM318DR?
The typical small signal bandwidth of the LM318DR is 15 MHz.
- What is the minimum slew rate of the LM318DR?
The minimum slew rate of the LM318DR is 50 V/µs.
- What is the operating temperature range of the LM318DR?
The operating temperature range of the LM318DR is 0°C to 70°C.
- What is the supply voltage range for the LM318DR?
The supply voltage range for the LM318DR is ±5 V to ±20 V.
- Does the LM318DR have internal frequency compensation?
Yes, the LM318DR has internal unity-gain frequency compensation.
- What kind of protection does the LM318DR have?
The LM318DR has input and output overload protection.
- Can external frequency compensation be added to the LM318DR?
Yes, external frequency compensation can be added for optimum performance.
- What are some common applications of the LM318DR?
The LM318DR is commonly used in A/D converters, oscillators, active filters, sample-and-hold circuits, and general-purpose amplifiers requiring high bandwidth and slew rate.
- What is the typical output current of the LM318DR?
The typical output current of the LM318DR is 20 mA.
- Is the LM318DR RoHS compliant?
Yes, the LM318DR is RoHS compliant.
