LTC5597

6

Rev. 0

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Note 6: Range for which the LOG-Linearity Error is within ±1dB.

Note 7: Slope of the best fit straight line obtained by linear regression.

Note 8: Extrapolated input power level (straight line obtained by linear

regression) where the voltage at OUT equals 0V.

Note 9: Power range for which LOG-Linearity Error is within ±1dB, relative

to best fit straight line for CW data (see Note 5).

Note 11: Time required to change voltage at OUT pin from 10% to 90% of

final value. Input power stepped from –55dBm to 0dBm.

Note 12: Time required to change voltage at OUT pin from 90% to 10% of

initial value. Input power stepped from 0dBm to –55dBm.

Note 13: Time required to change voltage at OUT pin to 90% of final value.

Input power 0dBm.

Note 14: Time required to change voltage at OUT pin to 10% of initial

value. Input power 0dBm. For higher load impedance the turn-off time

will be (much) larger as the OUT interface is high impedance in shutdown

mode.

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. The voltage on all pins should not exceed 3.8V,

may occur.

Note 2: Not production tested. Guaranteed by design and correlation to

production tested parameters.

Note 3: The LTC5597IDC is guaranteed functional over the case

temperature range –40°C to 105°C. All limits at –40°C and 105°C are

guaranteed by design and production sample testing.

Note 4: The LTC5597HDC is guaranteed functional over the case

temperature range –40°C to 125°C. All limits at –40°C and 125°C are

guaranteed by 100% production testing.

Note 5: LOG-Linearity Error is the input-referred power measurement error

relative to the best fit straight line (output voltage vs input power in dBm)

for the linear regression is from –37dBm to –5dBm for all frequencies. An

offset of 0.5dB is added to the LOG-intercept for all frequencies to center

the errors over the full temperature range. See also the Application Section

for an explanation of measurement error metrics.

PARAMETER

CONDITIONS

I-GRADE (NOTE 3)

H-GRADE (NOTE 4)

UNITS

MIN

TYP

MAX

MIN

TYP

MAX

Enable (EN) Low = Off, High = On

EN Input High Voltage (On)

l

1.1

1.1

V

EN Input Low Voltage (Off)

l

0.6

0.6

V

EN Pin Input Current

50

500

50

500

nA

Turn ON Time (Note 13)

50Ω Load at OUT

8

8

μs

Turn OFF Time (Note 14)

50Ω Load at OUT

1MΩ||11pF Load at OUT

45

100

45

100

ns

μs

Power Supply

Supply Voltage

l

2.7

3.3

3.6

2.7

3.3

3.6

V

Active Supply Current

EN = 3.3V

29.8

33.5

37.3

29.8

33.5

37.3

mA

Shutdown Supply Current

EN = 0V

50

500

50

500

nA

l

denotes the specifications which apply over the full operating

circuit is shown in Figure 1.