Overview
The AD8042AR, produced by Analog Devices Inc., is a low power, voltage feedback, high speed amplifier. It is designed to operate on a variety of power supplies including +3 V, +5 V, or ±5 V, and features true single supply capability. This amplifier is particularly useful in applications requiring high speed and low power consumption, making it ideal for portable and battery-powered devices. The AD8042AR is fabricated using Analog Devices' proprietary eXtra-Fast Complementary Bipolar (XFCB) process, which enables the construction of high frequency, low distortion amplifiers with low supply currents.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| -3 dB Small Signal Bandwidth (G = +1) | VS = 5 V, RL = 2 kΩ to 2.5 V | 125 | 160 | - | MHz |
| Slew Rate (G = –1, VO = 2 V Step) | VS = 5 V, RL = 2 kΩ to 2.5 V | 130 | 200 | - | V/μs |
| Settling Time to 0.1% (G = –1, VO = 2 V Step) | VS = 5 V, RL = 2 kΩ to 2.5 V | - | 39 | - | ns |
| Input Voltage Range | - | - | - | 200 mV below negative rail, within 1 V of positive rail | - |
| Output Voltage Swing | - | - | - | Within 30 mV of each rail | - |
| Power Supply Current | VS = 5 V | - | 12 | - | mA |
| Operating Temperature Range | - | -40°C | - | 85°C | °C |
| Package Types | - | - | - | 8-lead PDIP, 8-lead SOIC_N | - |
Key Features
- High Speed and Low Power: The AD8042AR features a -3 dB bandwidth of 160 MHz and a slew rate of 200 V/μs on a single 5 V supply, making it suitable for high speed applications while maintaining low power consumption.
- True Single Supply Capability: It can operate on +3 V, +5 V, or ±5 V supplies with an input voltage range extending 200 mV below the negative rail and within 1 V of the positive rail.
- Low Distortion and Fast Settling: The amplifier offers low distortion and fast settling times, making it ideal for buffering single-supply, high speed Analog-to-Digital converters (ADCs).
- Gain Flatness and Differential Gain/Phase Error: It features gain flatness of 0.1 dB to 14 MHz and differential gain and phase error of 0.04% and 0.06° on a single 5 V supply.
- Output Voltage Swing: The output voltage swing extends to within 30 mV of each rail, providing maximum output dynamic range.
Applications
- Professional Video Electronics: Suitable for cameras, video switchers, and other high speed video equipment.
- Portable and Battery-Powered Devices: Ideal for applications where size and power are critical due to its low power consumption and high performance.
- High Speed Analog-to-Digital Converters (ADCs): Excellent for buffering single-supply, high speed ADCs.
- Video Switchers and Distribution Amplifiers: Used in video switchers, distribution amplifiers, and other video processing equipment.
- CCD Imaging Systems and Ultrasound Equipment: Applicable in CCD imaging systems and multichannel ultrasound equipment.
Q & A
- What is the typical bandwidth of the AD8042AR?
The typical bandwidth of the AD8042AR is 160 MHz at a gain of +1.
- What are the power supply options for the AD8042AR?
The AD8042AR can operate on +3 V, +5 V, or ±5 V supplies.
- What is the slew rate of the AD8042AR?
The slew rate of the AD8042AR is 200 V/μs on a single 5 V supply.
- What is the maximum power supply current of the AD8042AR?
The maximum power supply current of the AD8042AR is 12 mA.
- What are the package types available for the AD8042AR?
The AD8042AR is available in 8-lead PDIP and 8-lead SOIC_N packages.
- What is the input voltage range of the AD8042AR?
The input voltage range extends 200 mV below the negative rail and within 1 V of the positive rail.
- How does the AD8042AR perform in terms of gain flatness and differential gain/phase error?
The AD8042AR features gain flatness of 0.1 dB to 14 MHz and differential gain and phase error of 0.04% and 0.06° on a single 5 V supply.
- What are some typical applications of the AD8042AR?
Typical applications include professional video electronics, portable and battery-powered devices, high speed ADCs, video switchers, distribution amplifiers, CCD imaging systems, and ultrasound equipment.
- What is the settling time to 0.1% for the AD8042AR?
The settling time to 0.1% is 39 ns for a gain of –1 and an output step of 2 V.
- How does the AD8042AR's output voltage swing compare to the power supply rails?
The output voltage swing extends to within 30 mV of each rail, providing maximum output dynamic range.
