LMH6739 Texas instruments

LMH6739

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LMH6739

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Описание

The LMH6739 is a very wideband, DC coupled monolithic selectable gain buffer designed specifically for ultra high resolution video systems as well as wide dynamic range systems requiring exceptional signal fidelity. Benefiting from current feedback architecture, the LMH6739 offers gains of −1, 1 and 2. At a gain of +2 the LMH6739 supports ultra high resolution video systems with a 400 MHz 2 VPP3 dB Bandwidth. With 12-bit distortion level through 30 MHz (RL = 100Ω), 2.3nV/√Hz input referred noise, the LMH6739 is the ideal driver or buffer for high speed flash A/D and D/A converters. Wide dynamic range systems such as radar and communication receivers requiring a wideband amplifier offering exceptional signal purity will find the LMH6739 low input referred noise and low harmonic distortion make it an attractive solution. The LMH6739 is offered in a space saving SSOP package.

750 MHz −3 dB small signal bandwidth
(A_V = +1)
−85 dBc 3^rd harmonic distortion (20 MHz)
2.3 nV/√Hz input noise voltage
3300 V/μs slew rate
32 mA supply current (10.6 mA per op amp)
90 mA linear output current
0.02/0.01 Diff. Gain/ Diff. Phase (R_L = 150Ω)
2mA shutdown current

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Architecture	Fixed Gain/Buffer
Number of channels	3
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)	8
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)	12
GBW (typ) (MHz)	750
BW at Acl (MHz)	750
Acl, min spec gain (V/V)	1
Slew rate (typ) (V/µs)	3300
Vn at flatband (typ) (nV√Hz)	2.3
Vn at 1 kHz (typ) (nV√Hz)	2.3
Iq per channel (typ) (mA)	10.6
Vos (offset voltage at 25°C) (max) (mV)	2.5
Rail-to-rail	No
Features	Shutdown
Rating	Catalog
Operating temperature range (°C)	-40 to 85
CMRR (typ) (dB)	50
Input bias current (max) (pA)	16000000
Offset drift (typ) (µV/°C)	0
Iout (typ) (mA)	90
2nd harmonic (dBc)	80
3rd harmonic (dBc)	90
Frequency of harmonic distortion measurement (MHz)	5