Overview
The AD815ARB-24, produced by Analog Devices Inc., is a high-performance integrated circuit designed as a dual high-speed amplifier. This component is typically configured as a differential driver, enabling it to supply a minimum of 500 mA of output current. It is particularly suited for applications requiring high output power, low harmonic distortion, and fast slew rates. The AD815 is widely used in communication systems, such as subscriber line interfaces for ADSL, HDSL, and VDSL, due to its high bandwidth and current drive capabilities.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Circuits | 2 | - |
| Amplifier Type | Differential | - |
| Output Type | Differential | - |
| Slew Rate | 900 V/µs | V/µs |
| -3 dB Bandwidth | 120 MHz | MHz |
| Input Bias Current | 10 µA | µA |
| Input Offset Voltage | 5 mV | mV |
| Supply Current | 23 mA | mA |
| Output Current per Channel | 500 mA | mA |
| Supply Voltage | ±5 V to ±15 V | V |
| Operating Temperature | -40°C to 85°C | °C |
| Package / Case | 24-SOIC (0.295", 7.50mm Width), 18 Leads, Fused Leads | - |
| Mounting Type | Surface Mount | - |
Key Features
- High Output Current: Capable of supplying a minimum of 500 mA per channel, making it suitable for high-power applications.
- Low Harmonic Distortion: Offers low harmonic distortion of –66 dB @ 1 MHz into 200 Ω, ensuring high signal quality.
- Fast Slew Rate: Features a differential slew rate of 900 V/µs, ideal for fast dynamic control of coils or transformers.
- High Bandwidth: Small signal bandwidth of up to 120 MHz and a bandwidth of 40 MHz at a gain of +2.
- Flexible Configuration: Can be configured as a differential driver or as two single-ended drivers.
- Industrial Temperature Range: Operates over a temperature range of -40°C to 85°C.
- Compact Package: Available in a 24-lead SOIC package, suitable for space-sensitive applications.
Applications
- Communication Systems: Ideal for subscriber line interfaces in ADSL, HDSL, and VDSL applications due to its high current drive and low harmonic distortion.
- Audio Systems: Suitable for high-fidelity audio systems requiring high output current and low noise.
- Control of Coils or Transformers: The fast slew rate and high load drive make it suitable for fast dynamic control of coils or transformers.
- Video Applications: Can drive up to 12 back-terminated loads with excellent video performance, including 0.05% differential gain and 0.45° phase error into a 25 Ω load.
Q & A
- What is the typical output current of the AD815?
The AD815 is capable of supplying a minimum of 500 mA per channel.
- What is the slew rate of the AD815?
The differential slew rate of the AD815 is 900 V/µs.
- What is the operating temperature range of the AD815?
The AD815 operates over a temperature range of -40°C to 85°C.
- What is the typical bandwidth of the AD815?
The small signal bandwidth of the AD815 is up to 120 MHz.
- What type of package is the AD815 available in?
The AD815 is available in a 24-lead SOIC package.
- What are some common applications of the AD815?
The AD815 is commonly used in communication systems, audio systems, and for the control of coils or transformers.
- What is the harmonic distortion of the AD815 at 1 MHz?
The AD815 has a harmonic distortion of –66 dB @ 1 MHz into 200 Ω.
- Can the AD815 be used as a single-ended driver?
Yes, the AD815 can be configured as two single-ended drivers in addition to its differential driver configuration.
- What is the input bias current of the AD815?
The input bias current of the AD815 is typically 10 µA.
- How many back-terminated loads can the AD815 drive?
The AD815 can drive up to 12 back-terminated loads with excellent video performance.
