The LMH5401 device is a very high-performance, differential amplifier optimized for radio frequency (RF), intermediate frequency (IF), or high-speed, dc-coupled, time-domain applications. The device is ideal for dc- or ac-coupled applications that may require a single-ended-to-differential (SE-DE) conversion when driving an analog-to-digital converter (ADC). The LMH5401 generates very low levels of second- and third-order distortion when operating in SE-DE or differential-to-differential (DE-DE) mode.
The amplifier is optimized for use in both SE-DE and DE-DE systems. The device has unprecedented usable bandwidth from DC to 2 GHz. The LMH5401 can be used for SE-DE conversions in the signal chain without external baluns in a wide range of applications such as test and measurement, broadband communications, and high-speed data acquisition.
A common-mode reference input pin aligns the amplifier output common-mode with the ADC input requirements. Power supplies between 3.3 V and 5 V can be selected and dual-supply operation is supported when required by the application. A power-down feature is also available for power savings.
This level of performance is achieved at a very low power level of 275 mW when a 5-V supply is used. The device is fabricated in Texas Instruments advanced complementary BiCMOS process and is available in a space-saving, UQFN-14 package for higher performance.
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|Part number||Order||Number of channels (#)||Total supply voltage (Min) (+5V=5, +/-5V=10)||Total supply voltage (Max) (+5V=5, +/-5V=10)||BW @ Acl (MHz)||Acl, min spec gain (V/V)||Slew rate (Typ) (V/us)||Vn at flatband (Typ) (nV/rtHz)||Iq per channel (Typ) (mA)||Rail-to-rail||Vos (offset voltage @ 25 C) (Max) (mV)||Operating temperature range (C)||Package Group||Output current (Typ) (mA)||2nd harmonic (dBc)||3rd harmonic (dBc)||Package size: mm2:W x L (PKG)||GBW (Typ) (MHz)||Input bias current (Max) (pA)||@ MHz||CMRR (Typ) (dB)|
||1||3.15||5.25||6200||2||17500||1.25||55||No||1.2||-40 to 85||UQFN | 14||50||99||94||14UQFN: 6 mm2: 2.5 x 2.5 (UQFN | 14)||8000||60000000||100||72|
||1||3.15||5||7000||6.3||18000||1.4||55||No||1.2||-40 to 85||UQFN | 14||50||96||102||14UQFN: 6 mm2: 2.5 x 2.5 (UQFN | 14)||8000||10000000||10||72|