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Data Sheet

ADL5565

Rev. D | Page 17 of 28

APPLICATIONS INFORMATION

BASIC CONNECTIONS

Figure 31 shows the basic connections for operating the

ADL5565. Apply a voltage between 3 V and 5 V to the VCC pins,

and decouple each supply pin with at least one low inductance,

0.1 µF surface-mount ceramic capacitor, placed as close as

possible to the device. Also, decouple the VCOM pin (Pin 9)

using a 0.1 µF capacitor.

The gain of the part is determined by the pin-strappable input

configuration. When Input A is applied to VIP1 and Input B is

applied to VIN1, the gain is 6 dB (minimum gain, see Equation 1

and Equation 2). When Input A is applied to VIP2 and Input B

is applied to VIN2, the gain is 12 dB (middle gain). When Input A

is applied to both VIP1 and VIP2 and Input B is applied to both

VIN1 and VIN2, the gain is 15.5 dB (maximum gain).

Pin 1 to Pin 4, Pin 10, and Pin 11 are biased at 1/2 VCC above

ground and can be dc-coupled (if within the specified input or

output common-mode voltage levels) or ac-coupled as shown in

Figure 31.

To enable the ADL5565, the ENBL pin must be pulled high.

Pulling the ENBL pin low puts the ADL5565 in sleep mode,

reducing the current consumption to 5 mA at ambient.

VIP2

VIP1

VIN1

VIN2

VOP

ENBL

VON

VCOM

VCC

GND

ADL5565

VCC

BALANCED

LOAD

0.1µF

10µF

0.1µF

RS/2

BALANCED

SOURCE

Figure 31. Basic Connections

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