ADA4859-3ACP-EBZ Single Supply, Fixed Gain G = 2, High-Speed Video Amplifier with Built-in Charge Pump
The ADA4859-3 (3 channels) is a single-supply, high-speed current feedback amplifier with an integrated charge pump that can output negative voltage or 0 V level without the need for a negative supply for video applications. The large signal −3 dB bandwidth of 195 MHz, fixed gain2, and 740 V/μs slew rate make this amplifier ideal for high-resolution professional and consumer video applications. The amplifier also has a wide input common-mode voltage range; When powered from a 5 V supply, the input range is from 1.8 V below ground to 1.2 V below the main rail.
This three-channel video amplifier is designed to operate from a 3.3 V to 5 V supply with a total quiescent current of only 38 mA, including current drawn by the charge pump. It is power-saving and can reduce the total supply current to 2 mA when not in use, further reducing power consumption. Even in power-saving mode, a charge pump can be used to power external devices. Provides a maximum output current of 50 mA at −3 V for external use.
The ADA4858-3 is available in a 16-pin LFCSP package and is designed to operate over an industrial temperature range of −40°C to +105°C.
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• Professional video equipment
• Consumer video equipment
•imaging
• Active filter
Features and Benefits:
Integrated charge pump
Supply voltage range: 3 V to 5.5 V
Output range: −3.3 V to −1.8 V
Output Current: 50 mA (max, −3 V, external use)
High-speed amplifier
−3 dB bandwidth: 195 MHz
Slew rate: 740 V/μs
0.1 dB gain flatness: 60 MHz
0.1% Establishment Time: 20 ns
Low power consumption
Total quiescent current: 38 mA
Power saving characteristics
High input common-mode voltage range:
−1.8 V to +3.8 V (+5 V)
Current feedback structure
Differential Gain Error: 0.01%
Differential phase error: 0.02°
Available in a 16-pin LFCSP package
Microchip Centennial Electronic Technology (Shenzhen) Co., Ltd
Address: 13H, Block A, Huaqiang Plaza, Huaqiang Road, Futian District, Shenzhen
Phone: 0755-83591082
Fax: 0755-83591083
Q Q：1051085817
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