Overview
The AD8656ARZ-REEL, produced by Analog Devices Inc., is a dual-channel, low-noise, precision CMOS operational amplifier. This device is part of the DigiTrim® series, known for its high dc accuracy and low noise performance. The AD8656 is designed to operate over a wide temperature range and is suitable for various applications requiring high precision and low noise, such as audio, industrial controls, and automotive systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Analog Devices Inc. | |
| Amplifier Type | CMOS | |
| Number of Circuits | 2 | |
| Output Type | Rail-to-Rail | |
| Slew Rate | 11 V/µs | |
| Gain Bandwidth Product | 28 MHz | |
| Input Bias Current | 1 pA | |
| Input Offset Voltage | 50 µV | |
| Supply Current | 3.7 mA (x2 Channels) | |
| Output Current per Channel | 220 mA | |
| Supply Voltage Range | 2.7 V to 5.5 V | |
| Operating Temperature Range | -40°C to 125°C | |
| Package Type | 8-SOIC (0.154, 3.90mm Width) | |
| Mounting Type | Surface Mount | |
| RoHS Status | ROHS3 Compliant |
Key Features
- Low Noise Performance: The AD8656 features a low noise density of 2.7 nV/√Hz at 10 kHz, making it suitable for applications requiring high signal integrity.
- Rail-to-Rail Input and Output: The ability to swing rail-to-rail at both the input and output enables the amplifier to buffer wide dynamic range devices in single-supply systems.
- High Precision: Leveraging Analog Devices' DigiTrim® technology, the AD8656 achieves high dc accuracy with a low offset voltage of 50 µV and a low offset voltage drift of 0.4 µV/°C.
- Wide Operating Temperature Range: Fully specified over the -40°C to 125°C temperature range, making it suitable for automotive and industrial applications.
- High Output Current Capability: Each channel can deliver up to 220 mA, which is beneficial for driving heavy loads and maintaining signal fidelity in audio applications.
Applications
- ADC and DAC Buffers: Ideal for buffering analog-to-digital converters and digital-to-analog converters due to its rail-to-rail input and output capabilities.
- Audio Systems: Used in microphone pre-amps and audio mixing consoles to reduce system-level noise and maintain audio fidelity.
- Industrial Controls: Suitable for precision filters, data acquisition, and process control systems where high precision and low noise are critical.
- Automotive Systems: Qualified for automotive applications, including collision avoidance systems and other safety-critical systems.
- PLL Filters: Used in phase-locked loop filters due to its high precision and low noise characteristics.
Q & A
- What is the AD8656ARZ-REEL used for?
The AD8656ARZ-REEL is a dual-channel, low-noise, precision CMOS operational amplifier used in various applications such as ADC and DAC buffers, audio systems, industrial controls, and automotive systems.
- What is the slew rate of the AD8656ARZ-REEL?
The slew rate of the AD8656ARZ-REEL is 11 V/µs.
- What is the gain bandwidth product of the AD8656ARZ-REEL?
The gain bandwidth product of the AD8656ARZ-REEL is 28 MHz.
- What is the input offset voltage of the AD8656ARZ-REEL?
The input offset voltage of the AD8656ARZ-REEL is 50 µV.
- What is the supply voltage range for the AD8656ARZ-REEL?
The supply voltage range for the AD8656ARZ-REEL is 2.7 V to 5.5 V.
- What is the operating temperature range for the AD8656ARZ-REEL?
The operating temperature range for the AD8656ARZ-REEL is -40°C to 125°C.
- Is the AD8656ARZ-REEL RoHS compliant?
Yes, the AD8656ARZ-REEL is ROHS3 compliant.
- What package type is the AD8656ARZ-REEL available in?
The AD8656ARZ-REEL is available in an 8-SOIC package.
- What are some typical applications of the AD8656ARZ-REEL in audio systems?
The AD8656ARZ-REEL is used in microphone pre-amps and audio mixing consoles to reduce system-level noise and maintain audio fidelity.
- Is the AD8656ARZ-REEL suitable for automotive applications?
Yes, the AD8656ARZ-REEL is qualified for automotive applications, including collision avoidance systems and other safety-critical systems.
