Overview
The AD8042AR-REEL, produced by Analog Devices Inc., is a dual 160 MHz rail-to-rail amplifier designed for high-speed and low-power applications. This voltage feedback amplifier operates on single supplies from +3.3 V to +12 V and dual power supplies up to ±6 V. It features true single supply capability with an input voltage range extending 200 mV below the negative rail and within 1 V of the positive rail. The AD8042 is particularly useful in professional video electronics, such as cameras and video switchers, as well as in buffering single-supply, high-speed analog-to-digital converters (ADCs).
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | +12.6 | V | |||
| Operating Temperature Range | -40 | +85 | °C | ||
| -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) | 26 | 39 | ns | ||
| Quiescent Current (Per Amplifier) | 5.0 | 6 | mA | ||
| Differential Gain Error (NTSC, 100 IRE, G = +2) | RL = 150 Ω | 0.02 | 0.05 | % | |
| Differential Phase Error (NTSC, 100 IRE, G = +2) | RL = 150 Ω | 0.04 | 0.06 | ° | |
| Output Voltage Swing (RL = 2 kΩ to 2.5 V) | 0.03 | 2.97 | 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 quiescent current of 5.0 mA to 6 mA per amplifier.
- Excellent video specifications, including gain flatness of 0.1 dB to 14 MHz, differential gain error of 0.02%, and differential phase error of 0.04°.
- Low distortion, with a total harmonic distortion of better than -77 dB @ 1 MHz into 100 Ω.
- Available in 8-lead PDIP and 8-lead SOIC_N packages.
Applications
- Professional video electronics: cameras, video switchers, and other high-speed portable equipment.
- Buffering single-supply, high-speed analog-to-digital converters (ADCs).
- Distribution amplifiers and A/D drivers.
- CCD imaging systems and ultrasound equipment (multichannel).
- Driving Category-5 (CAT-5) twisted pair wires and other data communication purposes.
Q & A
- What is the maximum operating temperature range for the AD8042?
The AD8042 operates within a temperature range of -40°C to +85°C.
- What is the typical quiescent current per amplifier for the AD8042?
The typical quiescent current per amplifier is 6 mA.
- What is the -3 dB bandwidth of the AD8042 at a gain of +1?
The -3 dB bandwidth is 160 MHz at a gain of +1.
- What is the slew rate of the AD8042?
The slew rate is 200 V/μs on a single 5 V supply.
- What are the typical differential gain and phase errors for the AD8042?
The typical differential gain error is 0.02%, and the differential phase error is 0.04°.
- Can the AD8042 operate on a single 3.3 V power supply?
Yes, the AD8042 can operate on a single 3.3 V power supply.
- What are the available packages for the AD8042?
The AD8042 is available in 8-lead PDIP and 8-lead SOIC_N packages.
- What is the maximum output voltage swing of the AD8042?
The output voltage swing extends to within 30 mV of each rail, providing the maximum output dynamic range.
- Is the AD8042 suitable for high-speed portable equipment?
Yes, the AD8042 is ideal for high-speed portable equipment due to its low power consumption and high-speed performance.
- Can the AD8042 be used for driving CAT-5 twisted pair wires?
Yes, the AD8042 can be used for driving CAT-5 twisted pair wires and other data communication purposes.
