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PDF LMH6655 Data sheet ( Hoja de datos )
| Número de pieza | LMH6655 | |
| Descripción | Single/Dual Low Power / 250 MHz / Low Noise Amplifiers | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LMH6655 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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August 2001
LMH6654/55
Single/Dual Low Power, 250 MHz, Low Noise Amplifiers
General Description
The LMH6654/55 single and dual high speed, voltage feed-
back amplifiers are designed to have unity-gain stable op-
eration with a bandwidth of 250MHz. They operate from
±2.5V to ±6V and each channel consumes only 4.5mA. The
amplifiers feature very low voltage noise and wide output
swing to maximize signal-to-noise ratio.
The LMH6654/55 have a true single supply capability with
input common mode voltage range extending 150 mV below
negative rail and within 1.3V of the positive rail.
LMH6654/55 high speed and low power combination make
these products an ideal choice for many portable, high
speed application where power is at a premium.
The LMH6654 is packaged in SOT23-5 and SOIC-8. The
LMH6655 is packaged in MSOP-8 and SOIC-8.
The LMH6654/55 are built on National’s Advance VIP10™
(Vertically Integrated PNP) complementary bipolar process.
Features
(VS = ±5V, TJ = 25˚C, Typical values unless specified).
n Voltage feedback architecture
n Unity gain bandwidth
250MHz
n Supply voltage range
±2.5V to ±6V
n Slew rate
200V/µsec
n Supply current
4.5mA/channel
n Input common mode voltage
−5.15V to +3.7V
n Output voltage swing (RL = 100Ω)
−3.6V to 3.4V
n Input voltage noise
4.5nV/
n Input current noise
1.7pA/
n Settling Time to 0.01%
25ns
Applications
n ADC drivers
n Consumer video
n Active filters
n Pulse delay circuits
n xDSL receiver
n Pre-amps
Typical Performance Characteristics
Input Voltage Noise vs. Frequency
Closed Loop Gain vs. Frequency
20016560
© 2001 National Semiconductor Corporation DS200165
20016558
www.national.com
1 page  
5V Electrical Characteristics (Continued)
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics Table.
Note 2: Human body model, 1.5kΩ in series with 100pF. Machine model: 0Ω in series with 100pF.
Note 3: Continuous short circuit operation at elevated ambient temperature can result in exceeding the maximum allowed junction temperature at 150˚C.
Note 4: The maximum power dissipation is a function of TJ(MAX), θJA and TA. The maximum allowable power dissipation at any ambient temperature is PD =
(TJ(MAX) − TA)/θJA. All numbers apply for packages soldered directly onto a PC board.
Note 5: Typical Values represent the most likely parametric norm.
Note 6: All limits are guaranteed by testing or statistical analysis.
Note 7: Offset voltage average drift is determined by dividing the change in VOS at temperature extremes into the total temperature change.
Note 8: Slew rate is the slower of the rising and falling slew rates. Slew rate is rate of change from 10% to 90% of output voltage step.
Typical Performance Characteristics TJ = 25˚C, V+ = ±5V, V− = −5, RF = 25Ω for gain = +1, RF =
402Ω and for gain ≥ +2, and RL = 100Ω, unless otherwise specified.
Closed Loop Bandwidth (G = +1)
Closed Loop Bandwidth (G = +2)
20016509
Closed Loop Bandwidth (G = +5)
20016510
Closed Loop Bandwidth (G = +10)
20016511
5
20016512
www.national.com
5 Page 
Typical Performance Characteristics TJ = 25˚C, V+ = ±5V, V− = −5, RF = 25Ω for gain = +1, RF =
402Ω and for gain ≥ +2, and RL = 100Ω, unless otherwise specified. (Continued)
CrossTalk vs. Frequency (LMH6655 only)
CrossTalk vs. Frequency (LMH6655 only)
20016561
Isolation Resistance vs. Capacitive Load
20016562
Open Loop Gain and Phase vs. Frequency
20016563
20016527
11 www.national.com
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet LMH6655.PDF ] | |
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