Overview
The AD8644ARUZ is a quad operational amplifier produced by Analog Devices Inc. It is part of the AD8644 series, which includes single-supply, 5.5 MHz bandwidth, rail-to-rail amplifiers. These amplifiers are optimized for various applications, particularly in LCD monitor systems. They are fabricated using Analog Devices' high voltage, extra fast complementary bipolar (HV XFCB) process, which enhances their performance by reducing internal parasitic capacitance and improving gain bandwidth, phase margin, and capacitive load drive.
Key Specifications
| Parameter | Value |
|---|---|
| Unity-Gain Bandwidth | 5.5 MHz |
| Low Voltage Offset | 1.0 mV |
| Slew Rate | 7.5 V/μs |
| Single-Supply Operation | 5 V to 18 V |
| High Output Current | 70 mA |
| Low Supply Current | 800 μA/amplifier (typical) |
| Operating Temperature Range | –20°C to +85°C |
| Package Type | 14-Lead TSSOP, 14-Lead SOIC |
Key Features
- Rail-to-rail inputs and outputs, providing greater dynamic range and control.
- High slew rate of 7.5 V/μs and high output current of 70 mA.
- Low supply current of 800 μA per amplifier, making it suitable for portable or densely packed designs.
- Stable with large capacitive loads due to the proprietary HV XFCB process.
- Output short-circuit protection and input overvoltage protection.
Applications
- LCD gamma and VCOM drivers.
- Modems.
- Portable instrumentation.
- Direct access arrangement.
Q & A
- What is the unity-gain bandwidth of the AD8644ARUZ?
The unity-gain bandwidth of the AD8644ARUZ is 5.5 MHz. - What is the typical supply current per amplifier for the AD8644ARUZ?
The typical supply current per amplifier is 800 μA. - What is the operating voltage range for the AD8644ARUZ?
The operating voltage range is from 5 V to 18 V. - What are the key applications of the AD8644ARUZ?
The key applications include LCD gamma and VCOM drivers, modems, and portable instrumentation. - What is the slew rate of the AD8644ARUZ?
The slew rate is 7.5 V/μs. - What is the maximum output current of the AD8644ARUZ?
The maximum output current is 70 mA. - What are the available package types for the AD8644ARUZ?
The available package types are 14-Lead TSSOP and 14-Lead SOIC. - What is the operating temperature range for the AD8644ARUZ?
The operating temperature range is from –20°C to +85°C. - Does the AD8644ARUZ have rail-to-rail inputs and outputs?
Yes, the AD8644ARUZ has rail-to-rail inputs and outputs. - Is the AD8644ARUZ RoHS compliant?
Yes, the AD8644ARUZ is RoHS compliant.
