LMH2120UM/NOPB
Active6 GHZ LINEAR RMS POWER DETECTOR WITH 40 DB DYNAMIC RANGE
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LMH2120UM/NOPB
Active6 GHZ LINEAR RMS POWER DETECTOR WITH 40 DB DYNAMIC RANGE
Technical Specifications
Parameters and characteristics for this part
| Specification | LMH2120UM/NOPB |
|---|---|
| Accuracy | 0.5 dB |
| Current - Supply | 2.9 mA |
| Frequency [Max] | 6 GHz |
| Frequency [Min] | 50 MHz |
| Input Range [Max] | 5 dBm |
| Input Range [Min] | -35 dBm |
| Mounting Type | Surface Mount |
| Package / Case | 6-XFBGA, DSBGA |
| RF Type | W-CDMA, EDGE, GSM, CDMA |
| Supplier Device Package | 6-DSBGA (1.22x0.82) |
| Voltage - Supply [Max] | 5 V |
| Voltage - Supply [Min] | 2.7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 3.73 | |
| 10 | $ 3.35 | |||
| 25 | $ 3.16 | |||
| 100 | $ 2.74 | |||
| Digi-Reel® | 1 | $ 3.73 | ||
| 10 | $ 3.35 | |||
| 25 | $ 3.16 | |||
| 100 | $ 2.74 | |||
| Tape & Reel (TR) | 250 | $ 2.60 | ||
| 500 | $ 2.33 | |||
| 1250 | $ 1.97 | |||
| 2500 | $ 1.87 | |||
| Texas Instruments | SMALL T&R | 1 | $ 2.81 | |
| 100 | $ 2.46 | |||
| 250 | $ 1.73 | |||
| 1000 | $ 1.39 | |||
Description
General part information
LMH2120 Series
The LMH2120 is a 40 dB Linear RMS power detector particularly suited for accurate power measurement of modulated RF signals that exhibit large peak-to-average ratios, i.e, large variations of the signal envelope. Such signals are encountered in W-CDMA and LTE cell phones. The RMS measurement topology inherently ensures a modulation insensitive measurement.
The device has an RF frequency range from 50 MHz to 6 GHz. It provides an accurate, temperature and supply insensitive, output voltage that relates linearly to the RF input power in volt. The LMH2120's excellent conformance to a linear response enables an easy integration by using slope and intercept only, reducing calibration effort significantly. The device operates with a single supply from 2.7V to 5V. The LMH2120 has an RF power detection range from -35 dBm to 5 dBm and is ideally suited for use in combination with a directional coupler. Alternatively, a resistive divider can be used.
The device is active for EN = High, otherwise it is in a low power consumption shutdown mode. To save power and prevent discharge of an external filter capacitance, the output (OUT) is high impedance during shutdown.
