|Category||Analog & Mixed-Signal Processing => Amplifiers|
|Description||3v, Low Power, 130mhz, 75ma Rail-to-rail Output Amplifiers|
|Company||National Semiconductor Corporation|
|Datasheet||Download LNH6644MAX datasheet
The LMH664X family true single supply voltage feedback amplifiers offer high speed (130MHz), low distortion (-62dBc), and exceptionally high output current (approximately 75mA) at low cost and with reduced power consumption when compared against existing devices with similar performance. Input common mode voltage range extends to 0.5V below V- and 1V from V+. Output voltage range extends to within 40mV of either supply rail, allowing wide dynamic range especially desirable in low voltage applications. The output stage is capable of approximately 75mA in order to drive heavy loads. Fast output Slew Rate (130V/µs) ensures large peak-to-peak output swings can be maintained even at higher speeds, resulting in exceptional full power bandwidth of 40MHz with a 3V supply. These characteristics, along with low cost, are ideal features for a multitude of industrial and commercial applications. Careful attention has been paid to ensure device stability under all operating voltages and modes. The result is a very well behaved frequency response characteristic (0.1dB gain flatness up the 12MHz under 150 load and = +2) with minimal peaking (typically 2dB maximum) for any gain setting and under both heavy and light loads. This along with fast settling time (68ns) and low distortion allows the device to operate well in ADC buffer, and high frequency filter applications as well as other applications. This device family offers professional quality video performance with low DG (0.01%) and DP (0.01°) characteristics. Differential Gain and Differential Phase characteristics are also well maintained under heavy loads (150) and throughout the output voltage range. The LMH664X family is offered in single (LMH6642), dual (LMH6643), and quad (LMH6644) options. See ordering information for packages offered.Features
(VS = +1. Typical values unless specified). -3dB BW (AV 130MHz n Supply voltage range 12.8V n Slew rate (Note 8), (AV 130V/µs n Supply current (no load) 2.7mA/amp n Output short circuit current 75mA n Linear output current n Input common mode volt. 0.5V beyond V-, 1V from V+ n Output voltage swing 40mV from rails n Input voltage noise 17nV/ n Input current noise 0.9pA/ n THD -62dBc n Settling time 68ns n Fully characterized for 3V, 5V, and 5V n Overdrive recovery 100ns n Output short circuit protected (Note n No output phase reversal with CMVR exceededApplications
Active filters CD/DVD ROM ADC buffer amp Portable video Current sense buffer
Closed Loop Gain vs. Frequency for Various Gain
Infrared or Convection Reflow(20 sec) Wave Soldering Lead Temp.(10 sec)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance VIN Differential Output Short Circuit Duration Supply Voltage V ) Voltage at Input/Output pins Input Current Storage Temperature Range Junction Temperature (Note 4) Soldering Information
Supply Voltage (V+ V-) Junction Temperature Range (Note 4) Package Thermal Resistance (Note 4) (JA) to +85°C
Unless otherwise specified, all limits guaranteed for = 0V, VCM = V+/2, and to V+/2. Boldface limits apply at the temperature extremes. Symbol BW BW0.1dB PBW en in THD BW 0.1dB Gain Flatness Full Power Bandwidth Input-Referred Voltage Noise Input-Referred Current Noise Total Harmonic Distortion Differential Gain Parameter Conditions = +1, VOUT +2, -1, VOUT = 402, VOUT +1, -1dB, VOUT to V+/2 VCM = 1V, NTSC, V /2
Cross-Talk Rejection Settling Time Slew Rate (Note 8) Input Offset Voltage Input Offset Average Drift Input Bias Current Input Offset Current Common Mode Input Resistance Common Mode Input CapacitanceSymbol CMVR Parameter Input Common-Mode Voltage Range
(Continued) Unless otherwise specified, all limits guaranteed for = 0V, VCM = V+/2, and to V+/2. Boldface limits apply at the temperature extremes. Conditions CMRR 1.8 1.6 Min (Note 6) Typ (Note 150 dB Max (Note -0.2 -0.1 UnitsCommon Mode Rejection Ratio Large Signal Voltage Gain
Output Current Positive Power Supply Rejection Ratio Supply Current (per channel)
Unless otherwise specified, all limits guaranteed for = 0V, VCM = V+/2, and to V+/2. Boldface limits apply at the temperature extremes. Symbol BW BW0.1dB PBW en in THD DG Parameter BW 0.1dB Gain Flatness Full Power Bandwidth Input-Referred Voltage Noise Input-Referred Current Noise Total Harmonic Distortion Differential Gain Conditions = +1, VOUT +2, -1, VOUT = 402, VOUT +1, -1dB, VOUT = +2 NTSC, V+/2 DP Differential Phase NTSC, V /2
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