LMH2121TMX/NOPB
Active3 GHZ FAST RESPONDING LINEAR POWER DETECTOR WITH 40DB DYNAMIC RANGE
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LMH2121TMX/NOPB
Active3 GHZ FAST RESPONDING LINEAR POWER DETECTOR WITH 40DB DYNAMIC RANGE
Technical Specifications
Parameters and characteristics for this part
| Specification | LMH2121TMX/NOPB |
|---|---|
| Frequency [Max] | 3 GHz |
| Frequency [Min] | 100 MHz |
| Input Range [Max] | 12 dBm |
| Input Range [Min] | -28 dBm |
| Mounting Type | Surface Mount |
| Package / Case | DSBGA, 4-WFBGA |
| RF Type | W-CDMA, EDGE, GSM, CDMA |
| Supplier Device Package | 4-DSBGA |
| Voltage - Supply [Max] | 3.3 V |
| Voltage - Supply [Min] | 2.6 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 3000 | $ 1.03 | |
| 6000 | $ 0.99 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.69 | |
| 100 | $ 1.40 | |||
| 250 | $ 1.00 | |||
| 1000 | $ 0.76 | |||
Description
General part information
LMH2121 Series
The LMH2121 is an accurate fast-responding power detector / RF envelope detector. Its response between an RF input signal and DC output signal is linear. The typical response time of 165 ns makes the device suitable for an accurate power setting in handsets during a rise time of RF transmission slots. It can be used in all popular communications standards: 2G/3G/4G/WAP.
The LMH2121 has an input range from −28 dBm to +12 dBm. Over this input range the device has an intrinsic high insensitivity for temperature, supply voltage and loading. The bandwidth of the device is from 100 MHz to 3 GHz, covering 2G/3G/4G/WiFi wireless bands.
As a result of the unique internal architecture, the device shows an extremely low part-to-part variation of the detection curve. This is demonstrated by its low intercept and slope variation as well as a very good linear conformance. Consequently the required characterization and calibration efforts are low.
