The LMH5401-SP is a very high-performance, radiation hardened, 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-SP 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-SP 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 is provided to align 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 300 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, LCCC-14 package for higher performance.
(1)Power Gain (Gp) = 8 dB; Voltage Gain (Gv) = 17 dB; RLtotal = 200 Ω. See Output Reference Nodes and Gain Nomenclature section for more details.
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|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)|
|Vn at 1 kHz (Typ) (nV/rtHz)|
|Iq per channel (Typ) (mA)|
|Vos (offset voltage @ 25 C) (Max) (mV)|
|Operating temperature range (C)|
|Package size: mm2:W x L (PKG)|
|CMRR (Typ) (dB)|
|Input bias current (Max) (pA)|
|Offset drift (Typ) (uV/C)|
|GBW (Typ) (MHz)|
|Output current (Typ) (mA)|
|2nd harmonic (dBc)|
|3rd harmonic (dBc)|
|No||In to V-||No|
-55 to 125
25 to 25
|-55 to 125||-55 to 125|
|LCCC | 14||CFP | 16||CFP | 16|
|14LCCC: 33 mm2: 5.5 x 6 (LCCC | 14)||See datasheet (CFP)||See datasheet (CFP)|
|Order now||Order now||Order now|