Datasheet ADA4859-3 (Analog Devices)

Single-Supply, Fixed G = 2, High Speed, Video Amplifier with Charge Pump Data Sheet ADA4859-3 FEATURES CONNECTION DIAGRAM Integrated charge pump ADA4859-3 Supply range: 3 V to 5.5 V T1 N1 Output range: −3.3 V to −1.8 V IN1 OU –I + NC 50 mA maximum output current at −3 V for external use 16 15 14 13 High speed amplifiers −3 dB bandwidth: 195 MHz Slew rate: 740 V/µs +V 1 12 +IN2 S 0.1 dB gain flatness: 60 MHz C1_a 2 11 –IN2 0.1% settling time: 20 ns CHARGE PUMP Low power C1_b 3 10 OUT2 Total quiescent current: 38 mA CPO 4 9 PD Power-down feature High input common-mode voltage range −1.8 V to +3.8 V at +5 V supply 5 6 7 8 Current feedback architecture S N3 T3 +V IN3 + –I Differential gain error: 0.01% OU NOTES
001
Differential phase error: 0.02° 1. NC = NO CONNECT. 2. EXPOSED PAD, CONNECT TO GROUND.
07715-
Available in 16-lead LFCSP
Figure 1.
APPLICATIONS Professional video Consumer video Imaging Active filters GENERAL DESCRIPTION
The ADA4859-3 (triple) is a single-supply, high speed current This triple video amplifier is designed to operate on supply feedback amplifier with an integrated charge pump that eliminates voltages of 3.3 V to 5 V, using only 38 mA total quiescent the need for negative supplies in order to output negative voltages current, including the charge pump. To further reduce the or output a 0 V level for video applications. The 195 MHz, large power consumption, it is equipped with a power-down feature signal −3 dB bandwidth at a fixed gain of 2, as well as the 740 V/µs that lowers the total supply current to as low as 2 mA when the slew rate, make this amplifier ideal for high resolution professional amplifier is not being used. Even in power-down mode, the and consumer video applications. The amplifier also has a wide charge pump can be used to power external components. The input common-mode voltage range that extends from 1.8 V maximum output current for external use is 50 mA at −3 V. below ground to 1.2 V below the positive rail at 5 V supply. The ADA4859-3 is available in a 16-lead LFCSP, and it is designed to work over the industrial temperature range of −40°C to +105°C.
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Document Outline Features Applications General Description Connection Diagram Table of Contents Revision History Specifications Absolute Maximum Ratings Maximum Power Dissipation ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Overview Charge Pump Operation Applications Information Using the ADA4859-3 in Gains Equal to +1, −1 Unity-Gain Operation Option 1 Option 2 Inverting Unity-Gain Operation Video Line Driver Power-Down Layout Considerations Power Supply Bypassing Outline Dimensions Ordering Guide