ADA4859-3
Single-Supply, Fixed G = 2, High Speed, Video Amplifier with Charge Pump
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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 at −3 V for external use - High speed amplifiers
−3 dB bandwidth: 195 MHz
Slew rate: 740 V/μs
0.1 dB gain flatness: 60 MHz
0.1% settling time: 20 ns - Low power
Total quiescent current: 38 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 ADA4859-3 (triple) is a single-supply, high speed current feedback amplifier with an integrated charge pump that eliminates the need for negative supplies in order to output negative voltages or output a 0 V level for video applications. The 195 MHz, large signal −3 dB bandwidth at a fixed gain of 2, as well as the 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 that extends from 1.8 V below ground to 1.2 V below the positive rail at 5 V supply.This triple video amplifier is designed to operate on supply voltages of 3.3 V to 5 V, using only 38 mA 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 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 ADA4858-3 is available in a 16-lead LFCSP, and it is designed to work over the industrial temperature range of −40°C to +105°C.
Applications
Data Sheet, Rev. 0, 11/2008
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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MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR2/14/2015
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MT-052: Op Amp Noise Figure: Don't Be Misled2/14/2015
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MT-050: Op Amp Total Output Noise Calculations for Second-Order System2/14/2015
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MT-049: Op Amp Total Output Noise Calculations for Single-Pole System2/14/2015
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MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth2/14/2015
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MT-047: Op Amp Noise2/14/2015
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MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps2/14/2015
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MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters2/14/2015
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MT-033: Voltage Feedback Op Amp Gain and Bandwidth2/14/2015
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MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps2/14/2015
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MT-056: High Speed Voltage Feedback Op Amps2/3/2009
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MT-032: Ideal Voltage Feedback (VFB) Op Amp12/11/2008
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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
Tools & Simulations
Design Tool
VRMS/dBm/dBu/dBV calculators
A utility to convert between standard units of power measurement and signal strength.
Power Dissipation vs Die Temp
This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.
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 |
|---|---|---|---|---|
| ADA4859-3ACPZ-R7 | Material Declaration | Reliability Data | 16-Lead LFCSP (4mm x 4mm x 0.85mm w/ EP) | |
| Wafer Fabrication Data |
Support & Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
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Lead Times
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Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.