Data Sheet

ADL9005

APPLICATIONS INFORMATION

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Rev. A | 20 of 24

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 recom-

mended 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

90

82.3

7.7

300

80

73.6

6.4

450

70

64.8

5.2

650

60

55.8

4.2

1000

50

46.8

3.2

1500

40

37.4

2.6

Figure 74. Typical Application Circuit