LT5538

4

5538f

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: Specifications over the –40°C to 85°C temperature range are

assured by design, characterization and correlation with statistical process

control.

Note 3: The linearity error is calculated by the difference between the

incremental slope of the output and the average slope from –50dBm

to –20dBm. The dynamic range is defined as the range over which the

linearity error is within ±1dB.

Note 4: Sensitivity is defined as the minimum input power required for the

linearity error within 3dB of the ideal log-linear transfer curve.

Note 5: Logarithmic Intercept is an extrapolated input power level from the

best-fitted log-linear straight line, where the output voltage is 0V.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Sensitivity

–69.5

dBm

Output Variation vs Temperature

Normalized to Output at 25°C

●

●

●

0.3/0.3

0.7/–0.3

1.1/–0.9

dB

dB

dB

RF Input Power Range

–65 to 10

dBm

Linear Dynamic Range

±1 dB Linearity Error (Note 3)

57

dB

Output Slope

18

mV/dB

Logarithmic Intercept

(Note 5)

–81.4

dBm

Sensitivity

–63

dBm

Output Variation vs Temperature

Normalized to Output at 25°C

●

●

●

0.6/–0.3

0.9/–0.6

1.4/–1.2

dB

dB

dB

Output Interface

Output DC Voltage

No RF Signal Present

0.350

V

Output Impedance

150

Ω

Source Current

10

mA

Sink Current

200

μA

Rise Time

100

ns

Fall Time

180

ns

Power Up/Down

ENBL = High (On)

●

1V

ENBL = Low (Off)

●

0.3

V

ENBL Input Current

VENBL = 5V

205

μA

Turn ON time

300

ns

Turn OFF Time

1μs

Power Supply

Supply Voltage

3

5.25

V

Supply Current

29

36

mA

Shutdown Current

ENBL = Low

1

100

μA