Overview
Features and Benefits
- Integrated charge pump
Supply range: 3 V to 5.5 V
Output range: −3.3 V to −1.8 V
50 mA maximum output current for external use at −3 V - High speed amplifiers
−3 dB bandwidth: 600 MHz
Slew rate: 600 V/μs
0.1 dB flatness: 85 MHz
0.1% settling time: 18 ns - Low power
Total quiescent current: 42 mA
Power-down feature - High input common-mode voltage range
−1.8 V to +3.8 V at +5 V supply - Current feedback architecture
- Differential gain error: 0.01%
- Differential phase error: 0.02°
- Available in 16-lead LFCSP
Product Details
The ADA4858-3 (triple) is a single-supply, high speed current feedback amplifier with an integrated charge pump that eliminates the need for negative supplies to output negative voltages or output a 0 V level for video applications. The 600 MHz, −3 dB bandwidth and 600 V/μs slew rate make this amplifier well suited for many high speed applications. In addition, its 0.1 dB flatness out to 85 MHz at G = 2, along with its differential gain and phase errors of 0.01% and 0.02° into a 150 Ω load, make it well suited for professional and consumer video applications.This triple operational amplifier is designed to operate on supply voltages of 3.3 V to 5 V, using only 42 mA of total quiescent current, including the charge pump. To further reduce the power consumption, it is equipped with a power-down feature that lowers the total supply current to as low as 2.5 mA when the amplifier is not being used. Even in power-down mode, the charge pump can be used to power external components. The maximum output current for external use is 50 mA at −3 V. The amplifier also has a wide input common-mode voltage range that extends from 1.8 V below ground to 1.2 V below the positive rail at a 5 V supply.
The ADA4858-3 is available in a 16-lead LFCSP, and it is designed to work over the extended industrial temperature range of −40°C to +105°C.
Applications
Data Sheet, Rev. A, 05/09
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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VFB or CFB that is the question!1/1/2010
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What’s in Your Toolbox?1/1/2009
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High-Speed, Current-Feedback Amplifier Drives and Equalizes Up to 100-m VGA Cables7/1/2010 Analog Dialogue
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Driving PIN Diodes: The Op-Amp Alternative2/1/2010 Analog Dialogue
Tools & Simulations
SPICE Models
CIR
ADA4858 SPICE Macro Model
3.1 K
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ADA4858-3ACPZ-R7 | Material Declaration | Reliability Data | 16-Lead LFCSP (4mm x 4mm x 0.85mm w/ EP) | |
| ADA4858-3ACPZ-RL | Material Declaration | Reliability Data | 16-Lead LFCSP (4mm x 4mm x 0.85mm w/ EP) | |
| Wafer Fabrication Data |
Sample & Buy
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.