|
|
PDF LMH6643 Data sheet ( Hoja de datos )
| Número de pieza | LMH6643 | |
| Descripción | 3V / Low Power / 130MHz / 75mA Rail-to-Rail Output Amplifiers | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LMH6643 (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
|
No Preview Available !
May 2003
LMH6642/6643/6644
3V, Low Power, 130MHz, 75mA Rail-to-Rail Output
Amplifiers
General Description
The LMH664X family true single supply voltage feedback
amplifiers offer high speed (130MHz), low distortion
(−62dBc), and exceptionally high output current (approxi-
mately 75mA) at low cost and with reduced power consump-
tion 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 150Ω load and AV = +2) with
minimal peaking (typically 2dB maximum) for any gain set-
ting 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 perfor-
mance with low DG (0.01%) and DP (0.01˚) characteristics.
Differential Gain and Differential Phase characteristics are
also well maintained under heavy loads (150Ω) and through-
out 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 = ±5V, TA = 25˚C, RL = 2kΩ, AV = +1. Typical values
unless specified).
n −3dB BW (AV = +1)
n Supply voltage range
130MHz
3V to 12.8V
n Slew rate (Note 8), (AV = −1)
n Supply current (no load)
130V/µs
2.7mA/amp
n Output short circuit current
+115mA/−145mA
n Linear output current
±75mA
n Input common mode volt. 0.5V beyond V−, 1V from V+
n Output voltage swing
40mV from rails
n Input voltage noise (100kHz)
17nV/
n Input current noise (100kHz)
0.9pA/
n THD (5MHz, RL = 2kΩ, VO = 2VPP, AV = +2) −62dBc
n Settling time
68ns
n Fully characterized for 3V, 5V, and ±5V
n Overdrive recovery
100ns
n Output short circuit protected (Note 11)
n No output phase reversal with CMVR exceeded
Applications
n Active filters
n CD/DVD ROM
n ADC buffer amp
n Portable video
n Current sense buffer
Closed Loop Gain vs. Frequency for Various Gain
Large Signal Frequency Response
20018535
© 2003 National Semiconductor Corporation DS200185
20018547
www.national.com
1 page  
±5V Electrical Characteristics (Continued)
Unless otherwise specified, all limits guaranteed for at TJ = 25˚C, V+ = 5V, V− = −5V, VCM = VO = 0V and RL = 2kΩ to ground.
Boldface limits apply at the temperature extremes.
Symbol Parameter
Conditions
Min Typ Max
(Note 6) (Note 5) (Note 6)
Units
in Input-Referred Current Noise f = 100kHz
f = 1kHz
0.90
3.3
pA/
THD
DG
Total Harmonic Distortion
Differential Gain
DP Differential Phase
CT Rej. Cross-Talk Rejection
TS Settling Time
SR Slew Rate (Note 8)
VOS Input Offset Voltage
TC VOS
IB
Input Offset Average Drift
Input Bias Current
f = 5MHz, VO = 2VPP, AV = +2
NTSC, AV = +2
RL =150Ω to V+/2
RL =1kΩ to V+/2
NTSC, AV = +2
RL =150Ω to V+/2
RL =1kΩ to V+/2
f = 5MHz, Receiver:
Rf = Rg = 510Ω, AV = +2
VO = 2VPP, ±0.1%, 8pF Load,
VS = 5V
AV = −1, VI = 2VPP
(Note 12)
(Note 7)
−62 dBc
0.15
0.01
%
0.04
0.01
deg
47 dB
ns
68
100 135
V/µs
±1
±5
±7
mV
±5 µV/˚C
−1.60
−2.60
−3.25
µA
IOS Input Offset Current
800
20 nA
1000
RIN Common Mode Input
Resistance
MΩ
3
CIN Common Mode Input
Capacitance
pF
2
CMVR
Input Common-Mode Voltage CMRR ≥ 50dB
Range
−5.5
−5.2
−5.1
3.8
4.0
3.6
V
CMRR Common Mode Rejection
VCM Stepped from −5V to 3.5V
74
95
Ratio
dB
AVOL
VO
ISC
IOUT
PSRR
Large Signal Voltage Gain
Output Swing
High
Output Swing
Low
Output Short Circuit Current
Output Current
Power Supply Rejection Ratio
VO = −4.5V to 4.5V,
RL = 2kΩ
VO = −4.0V to 4.0V,
RL = 150Ω
RL = 2kΩ, VID = 200mV
RL = 150Ω, VID = 200mV
RL = 2kΩ, VID = −200mV
RL = 150Ω, VID = −200mV
Sourcing to Ground
VID = 200mV (Note 10)
Sinking to Ground
VID = −200mV (Note 10)
VO = 0.5V from either supply
(V+, V−) = (4.5V, −4.5V) to (5.5V,
−5.5V)
88
84
78
74
4.90
4.65
60
35
85
65
±75
78
96
82
4.96
4.80
−4.96
−4.80
115
145
−4.90
−4.65
90
dB
V
V
mA
mA
dB
IS Supply Current (per channel) No Load
2.70
4.50
5.50
mA
5 www.national.com
5 Page 
Typical Performance Characteristics At TJ = 25˚C, V+ = +5, V− = −5V, RF = RL = 2kΩ. Unless
otherwise specified. (Continued)
VOUT from V+ vs. ISOURCE
VOUT from V− vs. ISINK
Swing vs. VS
20018516
20018517
Short Circuit Current (to VS/2) vs. VS
20018529
Output Sinking Saturation Voltage vs. IOUT
20018531
Output Sourcing Saturation Voltage vs. IOUT
20018520
11
20018501
www.national.com
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet LMH6643.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LMH6640 | TFT-LCD Single/ 16V Rail-to-Rail High Output Operational Amplifier | National Semiconductor |
| LMH6640 | LMH6640 TFT-LCD Single 16V Rail-to-Rail High Output Operational Amplifier (Rev. B) |  Texas Instruments |
| LMH6640 | TFT-LCD Single / 16V Rail-to-Rail High Output Operational Amplifier | National Semiconductor |
| LMH6642 | LMH664x Low Power 130 MHz 75 mA Rail-to-Rail Output Amplifiers (Rev. Q) | Texas Instruments |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |