Overview
The AD8042AN, produced by Analog Devices Inc., is a low power, high speed, voltage feedback operational amplifier. It is designed to operate on a variety of supply voltages, including +3 V, +5 V, or ±5 V, and features true single supply capability. This amplifier is particularly suited for applications requiring high bandwidth, low distortion, and fast settling times.
The AD8042AN 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. This process eliminates parasitic and latch-up problems, enhancing the overall performance of the amplifier.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| –3 dB Small Signal Bandwidth | G = +1, VO < 0.5 V p-p | 125 | 160 | - | MHz |
| Slew Rate | G = –1, VO = 2 V Step | 130 | 200 | - | V/μs |
| Settling Time to 0.1% | G = –1, VO = 2 V Step | - | 39 | - | ns |
| Input Voltage Range | - | -200 mV below negative rail to 1 V below positive rail | - | - | V |
| Output Voltage Swing | - | Within 30 mV of each rail | - | - | V |
| Quiescent Current (Per Amplifier) | - | 6 | 7 | mA | |
| Operating Temperature Range | - | -40 | - | 85 | °C |
| Power Supply Range | - | 3 | - | 12 | V |
Key Features
- High speed operation with a –3 dB bandwidth of 160 MHz and a slew rate of 200 V/μs on a single 5 V supply.
- True single supply capability with an input voltage range extending 200 mV below the negative rail and within 1 V of the positive rail.
- Low power consumption with a maximum quiescent current of 7 mA per amplifier.
- Low distortion and fast settling times, making it ideal for buffering single-supply, high speed Analog-to-Digital converters (ADCs).
- 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.
- Available in 8-lead PDIP and 8-lead SOIC_N packages.
Applications
- Professional video electronics such as cameras and video switchers.
- High speed portable equipment.
- Buffering single-supply, high speed Analog-to-Digital converters (ADCs).
- Video distribution amplifiers and CCD imaging systems.
- Ultrasound equipment (multichannel).
- Differential line drivers for applications like driving Category-5 (CAT-5) twisted pair wires.
Q & A
- What is the typical –3 dB bandwidth of the AD8042AN?
The typical –3 dB bandwidth of the AD8042AN is 160 MHz at a gain of +1.
- What is the slew rate of the AD8042AN on a single 5 V supply?
The slew rate of the AD8042AN on a single 5 V supply is 200 V/μs.
- What is the input voltage range of the AD8042AN?
The input voltage range extends 200 mV below the negative rail and within 1 V of the positive rail.
- What is the maximum quiescent current per amplifier for the AD8042AN?
The maximum quiescent current per amplifier is 7 mA.
- What are the typical differential gain and phase errors of the AD8042AN?
The typical differential gain error is 0.04%, and the typical differential phase error is 0.06° on a single 5 V supply.
- In what packages is the AD8042AN available?
The AD8042AN is available in 8-lead PDIP and 8-lead SOIC_N packages.
- What are some common applications of the AD8042AN?
Common applications include professional video electronics, high speed portable equipment, buffering single-supply ADCs, video distribution amplifiers, and CCD imaging systems.
- What is the operating temperature range of the AD8042AN?
The operating temperature range is from –40°C to +85°C.
- What is the maximum power supply voltage for the AD8042AN?
The maximum power supply voltage is 12.6 V.
- How does the AD8042AN's design improve its distortion performance?
The design uses a differential output input stage to maximize bandwidth and headroom, reducing the effect of nonlinear currents due to junction capacitances and improving distortion performance.
