LMH6555 Texas instruments

LMH6555

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LMH6555

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Описание

The LMH6555 is an ultra high speed differential line driver with 53 dB SFDR at 750 MHz. The LMH6555 features a fixed gain of 13.7 dB. An input to the device allows the output common mode voltage to be set independent of the input common mode voltage in order to simplify the interface to high speed differential input ADCs. A unique architecture allows the device to operate as a fully differential driver or as a single-ended to differential converter. The outstanding linearity and drive capability (100Ω differential load) of this device are a perfect match for driving high speed analog-to-digital converters. When combined with the ADC081000/ ADC081500 (single or dual ADC), the LMH6555 forms an excellent 8-bit data acquisition system with analog bandwidths exceeding 750 MHz. The LMH6555 is offered in a space saving 16-pin WQFN package.

Typical Values unless Otherwise Specified.
−3 dB Bandwidth (V_OUT = 0.80 V_PP) 1.2 GHz
±0.5 dB Gain Flatness (V_OUT = 0.80 V_PP) 330 MHz
Slew Rate 1300 V/μs
2^nd/3^rd Harmonics (750 MHz) −53/−54 dBc
Fixed Gain 13.7 dB
Supply Current 120 mA
Single Supply Operation 3.3V ±10%
Adjustable Common-Mode Output Voltage

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Number of channels	1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)	3
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)	3.6
BW at Acl (MHz)	1200
Acl, min spec gain (V/V)	4.8
Slew rate (typ) (V/µs)	3000
Architecture	Bipolar, Fully Differential ADC Driver
Vn at flatband (typ) (nV√Hz)	3.9
Iq per channel (typ) (mA)	120
Rail-to-rail	No
Vos (offset voltage at 25°C) (max) (mV)	50
Operating temperature range (°C)	-40 to 85
2nd harmonic (dBc)	53
3rd harmonic (dBc)	54
Frequency of harmonic distortion measurement (MHz)	750
GBW (typ) (MHz)	1200
Input bias current (max) (pA)	100000000
Features	On chip gain resistors
CMRR (typ) (dB)	68
Rating	Catalog