ADL6332ACCZB-R7 datasheet(36/55 Pages) AD

36 / 55 page

Data Sheet

ADL6332

APPLICATIONS INFORMATION

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Rev. A | 36 of 55

CURRENT CONSUMPTION OPTIMIZATION

When the MSB in 0x104, 0x105, and 0x106 registers for AMP1 and

0x110, 0x111, and 0x112 registers for AMP2 are set to 0, these six

registers are tunable. If a lower current consumption is needed, the

settings of both AMP1_IGREF in Register 0x104 and AMP2_IGREF

in Register 0x110 can be reduced according to the readback value

of factory trimmed IGREF in Register 0x140 and Register 0x143 for

AMP1 and AMP2, respectively (see Figure 96 and Figure 97). As

a result, the OIP3 performance is degraded, as shown in Figure 98

and Figure 99.

It is not recommended to increase the IGREF settings greater than

the readback value for AMP1 and AMP2. Doing so could impact the

long term reliability of the part.

Figure 96. Total Current vs. IGREF Settings for Various Frequencies

(ADL6332-A)

Figure 97. Total Current vs. IGREF Settings for Various Frequencies

(ADL6332-B)

Figure 98. OIP3 vs. IGREF Settings for Various Frequencies (ADL6332-A)

Figure 99. OIP3 vs. IGREF Settings for Various Frequencies (ADL6332-B)

ADL6332ACCZB-R7 数据表(PDF) 36 Page - Analog Devices