LMH2121 datasheet(9/30 Pages) TI1

Part #	LMH2121

Description	3 GHz Fast-Responding Linear Power Detector with 40 dB Dynamic Range

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Manufacturer	TI1 [Texas Instruments]

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RF INPUT POWER (dBm)

-30

-20

-10

0

10

20

3

2

1

0

-1

-2

-3

-40°C

85°C

-30

-20

-10

0

10

20

2.0

1.5

1.0

0.5

0.0

-0.5

-1.0

-1.5

-2.0

RF INPUT POWER (dBm)

-40°C

85°C

-40

-30

-20

-10

0

10

20

10

1

0.1

0.01

RF INPUT POWER (dBm)

25°C

85°C

-40°C

-30

-20

-10

0

10

20

3

2

1

0

-1

-2

-3

85°C

RF INPUT POWER (dBm)

-40°C

25°C

-40

-30

-20

-10

0

10

20

10

1

0.1

0.01

2.6 GHz

RF INPUT POWER (dBm)

1.7 GHz

1.9 GHz

100 MHz

700 MHz

900 MHz

FREQUENCY (Hz)

10

1

0.1

0.01

10M

100M

1G

10G

RFIN = -25 dBm

RFIN = -10 dBm

RFIN = -5 dBm

RFIN = 0 dBm

RFIN = -15 dBm

RFIN = -20 dBm

RFIN = -30 dBm

RFIN = 5 dBm

RFIN = 10 dBm

LMH2121

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SNVS876A – AUGUST 2012 – REVISED MARCH 2013

TYPICAL PERFORMANCE CHARACTERISTICS (continued)

Unless otherwise specified TA = 25°C, VDD = 2.7V, RFIN = 1900 MHz CW (Continuous Wave, unmodulated). Specified errors

are input referred.

Output Voltage vs. RF Input power

Output Voltage vs. Frequency

Figure 15.

Figure 16.

Lin Conformance

Output Voltage vs. RF Input Power at 100 MHz

vs. RF Input Power at 100 MHz

Figure 17.

Figure 18.

Lin Conformance (50 units)

Temperature Variation

vs. RF Input Power at 100 MHz

Figure 19.

Figure 20.

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