ADL9005ACPZN-R7 datasheet(20/24 Pages) AD

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ADL9005

Data Sheet

Rev. 0 | Page 20 of 24

APPLICATIONS INFORMATION

BASIC CONNECTIONS

The basic connections for operating the ADL9005 are shown

in Figure 74. Connect the recommended capacitor values to the

ac ground pins (ACG1, ACG2, ACG3, and ACG4) as shown

in Figure 74. The bias current is set by connecting a resistor

between RBIAS and VDD. When using 5 V VDD, a resistor value

of 300 Ω is recommended to achieve an IDQ of 80 mA. Table 9

shows the resulting IDQ for the various RBIAS values where the

resistor is tied to 5 V. Decouple the RBIAS pin with a 100 pF

capacitor as shown in Figure 74.

Refer to ADL9005-EVALZ user guide (UG-1859) for the

recommended part numbers of the manufacturers for all

the external components required to operate the ADL9005.

Table 9. Recommended Bias Resistor Values

RBIAS (Ω)

IDQ (mA)

IDQ_AMP (mA)

IDQ_BIAS (mA)

180

82.3

7.7

300

73.6

6.4

450

64.8

5.2

650

55.8

4.2

1000

46.8

3.2

1500

37.4

2.6

300Ω

100pF

CIN

0.1µF

RF INPUT RFIN

RBIAS

0.01µF

RFOUT/

VDD

4.7µF

C10

100pF

C11

0.01µF

4.7µF

DRAIN

BIASING

NETWORK

OUTPUT

VDD

(5V)

ADL9005

Figure 74. Typical Application Circuit

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