Overview
The AD815AY, produced by Analog Devices Inc., is a high output current differential driver. This component consists of two high-speed amplifiers, each capable of supplying a minimum of 500 mA. It is typically configured as a differential driver, enabling an output signal of 40 V p-p on ±15 V supplies. The AD815AY is designed for high-performance applications requiring high output power and low harmonic distortion.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Current | - | - | 500 | - | mA |
| Output Voltage Swing | Single Ended, RLOAD = 25 Ω | 11.0 | 11.7 | - | V |
| Differential Input Resistance | - | - | 7 MΩ | - | - |
| Differential Input Capacitance | - | - | 1.4 pF | - | - |
| Common-Mode Rejection Ratio | TMIN – TMAX | 57 | 65 | - | dB |
| Differential Slew Rate | - | - | 900 V/µs | - | - |
| Operating Temperature Range | - | -40°C | - | 85°C | - |
| Storage Temperature Range | - | -65°C | - | 125°C | - |
Key Features
- Flexible Configuration: Can be configured as a differential driver or two single-ended drivers.
- High Output Current: Capable of supplying a minimum of 500 mA.
- Low Harmonic Distortion: -66 dB @ 1 MHz into 200 Ω.
- Wide Bandwidth: Suitable for high-speed applications.
- High Slew Rate: 900 V/µs.
- Industrial Temperature Range: Operates from -40°C to 85°C.
- Video Performance: 0.05% differential gain and 0.45° differential phase into a load of 25 Ω.
Applications
- Communication Systems: Ideal for subscriber line interfaces for ADSL, HDSL, and VDSL.
- Fast Dynamic Control: Suitable for controlling coils or transformers due to its high load drive capability.
- Video Applications: Can drive up to 12 back-terminated loads.
- General High-Current Drive Applications: Suitable for any application requiring high output current and low distortion.
Q & A
- What is the maximum output current of the AD815AY?
The AD815AY can supply a minimum of 500 mA.
- What is the typical output voltage swing of the AD815AY?
The typical output voltage swing is 11.7 V for single-ended operation with a 25 Ω load.
- What is the differential slew rate of the AD815AY?
The differential slew rate is 900 V/µs.
- What are the operating temperature ranges for the AD815AY?
The operating temperature range is from -40°C to 85°C.
- What is the storage temperature range for the AD815AY?
The storage temperature range is from -65°C to 125°C.
- Can the AD815AY be used in video applications?
Yes, it has excellent video performance with 0.05% differential gain and 0.45° differential phase into a load of 25 Ω.
- What are some common applications of the AD815AY?
Common applications include subscriber line interfaces for ADSL, HDSL, and VDSL, as well as fast dynamic control of coils or transformers.
- How should the supply bypass capacitors be connected for the AD815AY?
The ground returns on both supply bypass capacitors and signal common must be “star” connected.
- What is the harmonic distortion of the AD815AY at 1 MHz into 200 Ω?
The harmonic distortion is -66 dB @ 1 MHz into 200 Ω.
- Can the AD815AY drive multiple loads?
Yes, it can drive up to 12 back-terminated loads.
