Overview
The AD8022AR, produced by Analog Devices Inc., is a dual high-speed, low-noise voltage-feedback operational amplifier. It is specifically designed for applications requiring very low voltage and current noise, such as ADSL, VDSL, and proprietary xDSL transceiver designs. The AD8022AR operates on a wide range of supply voltages and is fabricated on Analog Devices’ proprietary eXtra-Fast Complementary Bipolar (XFCB) process, which enables high-frequency, low-distortion performance with low supply currents.
Key Specifications
| Parameter | Rating/Value |
|---|---|
| Supply Voltage (+VS to −VS) | 26.4 V |
| Internal Power Dissipation (8-Lead SOIC) | 1.6 W |
| Internal Power Dissipation (8-Lead MSOP) | 1.2 W |
| Input Voltage (Common Mode) | ±VS |
| Differential Input Voltage | ±0.8 V |
| Operating Temperature Range (A Grade) | −40°C to +85°C |
| Storage Temperature Range | −65°C to +125°C |
| Quiescent Current per Amplifier | 4.0 mA |
| Voltage Noise @ 100 kHz | 2.5 nV/√Hz |
| Current Noise @ 100 kHz | 1.2 pA/√Hz |
| Bandwidth (−3 dB), G = +1 | 130 MHz |
| Slew Rate | 50 V/μs |
| Settling Time to 0.1% | 68 ns |
| Input Offset Voltage | 1.5 mV (typical) |
| Output Voltage Swing | ±10.1 V on ±12 V Supply |
Key Features
- Low voltage and current noise: 2.5 nV/√Hz @ 100 kHz and 1.2 pA/√Hz @ 100 kHz.
- High-speed performance: 130 MHz bandwidth (−3 dB), 50 V/μs slew rate.
- Low distortion: Suitable for applications requiring high fidelity signal processing.
- High output current: Optimized for stability when driving capacitive loads.
- Wide supply voltage range: Operates on a wide range of supply voltages.
- Fast overvoltage recovery: Ideal for xDSL transceiver designs.
- Available in 8-lead MSOP and 8-lead SOIC packages.
Applications
- Receive channel front end for ADSL, VDSL, and proprietary xDSL transceiver designs.
- Low noise instrumentation front end.
- Ultrasound preamp.
- Active filters.
- 16-bit ADC buffer.
Q & A
- What is the primary application of the AD8022AR?
The AD8022AR is primarily used as the receive channel front end for ADSL, VDSL, and proprietary xDSL transceiver designs.
- What is the voltage noise of the AD8022AR at 100 kHz?
The voltage noise of the AD8022AR at 100 kHz is 2.5 nV/√Hz.
- What is the bandwidth of the AD8022AR?
The bandwidth of the AD8022AR is 130 MHz (−3 dB) at a gain of +1.
- What is the slew rate of the AD8022AR?
The slew rate of the AD8022AR is 50 V/μs.
- What are the available package types for the AD8022AR?
The AD8022AR is available in both 8-lead MSOP and 8-lead SOIC packages.
- What is the quiescent current per amplifier for the AD8022AR?
The quiescent current per amplifier for the AD8022AR is 4.0 mA.
- What is the input offset voltage of the AD8022AR?
The input offset voltage of the AD8022AR is typically 1.5 mV.
- What is the output voltage swing of the AD8022AR on a ±12 V supply?
The output voltage swing of the AD8022AR on a ±12 V supply is ±10.1 V.
- Is the AD8022AR suitable for driving capacitive loads?
Yes, the AD8022AR is optimized for stability when driving capacitive loads.
- What is the settling time to 0.1% for the AD8022AR?
The settling time to 0.1% for the AD8022AR is 68 ns.
