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PDF LMH6639 Data sheet ( Hoja de datos )
| Número de pieza | LMH6639 | |
| Descripción | 190MHz Rail-to-Rail Output Amplifier with Disable | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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July 2003
LMH6639
190MHz Rail-to-Rail Output Amplifier with Disable
General Description
The LMH6639 is a voltage feedback operational amplifier
with a rail-to-rail output drive capability of 110mA. Employing
National’s patented VIP10 process, the LMH6639 delivers a
bandwidth of 190MHz at a current consumption of only
3.6mA. An input common mode voltage range extending to
0.2V below the V− and to within 1V of V+, makes the
LMH6639 a true single supply op-amp. The output voltage
range extends to within 30mV of either supply rail providing
the user with a dynamic range that is especially desirable in
low voltage applications.
The LMH6639 offers a slew rate of 172V/µs resulting in a full
power bandwidth of approximately 28MHz. The TON value of
83nsec combined with a settling time of 33nsec makes this
device ideally suited for multiplexing 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 for any gain set-
ting including +1, and excellent specifications for driving
video cables including harmonic distortion of −60dBc, differ-
ential gain of 0.12% and differential phase of 0.045˚
Features
(VS = 5V, Typical values unless specified)
n Supply current (no load)
3.6mA
n Supply current (off mode)
400µA
n Output resistance (closed loop 1MHz)
0.186Ω
n −3dB BW (AV = 1)
n Settling time
190MHz
33nsec
n Input common mode voltage
−0.2V to 4V
n Output voltage swing
40mV from rails
n Linear output current
110mA
n Total harmonic distortion
−60dBc
n Fully characterized for 3V, 5V and ±5V
n No output phase reversal with CMVR exceeded
n Excellent overdrive recovery
n Off Isolation 1MHz
−70dB
n Differential Gain
0.12%
n Differential Phase
0.045˚
Applications
n Active filters
n CD/DVD ROM
n ADC buffer amplifier
n Portable video
n Current sense buffer
FIGURE 1. Typical Single Supply Schematic
20030246
© 2003 National Semiconductor Corporation DS200302
www.national.com
1 page  
±5V Electrical Characteristics
Unless otherwise specified, all limits guaranteed for at TJ = 25˚C, VSUPPLY = ±5V, VO = VCM = GND, and RL = 2kΩ to V+/2.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Min Typ Max
(Note 6) (Note 5) (Note 6)
Units
BW
BW0.1dB
FPBW
GBW
en
−3dB BW
0.1dB Gain Flatness
Full Power Bandwidth
Gain Bandwidth Product
Input-Referred Voltage Noise
AV = +1
AV = −1
RF = 2.26kΩ, RL = 1kΩ
AV = +1, VOUT = 2VPP, −1dB
AV = +1
RF = 33kΩ
f = 10kHz
f = 1MHz
150
228
65
18
29
90
19
16
MHz
MHz
MHz
MHz
nV/
in Input-Referred Current Noise RF = 1MΩ
f = 10kHz
f = 1MHz
1.13
0.34
pA/
THD
DG
DP
TS
SR
VOS
Total Harmonic Distortion
Differential Gain
Differential Phase
Settling Time
Slew Rate
Input Offset Voltage
f = 5MHz, VO = 2VPP, AV = +2,
RL = 1kΩ
NTSC, AV = +2
RL = 150Ω
NTSC, AV = +2
RL = 150Ω
VO = 2VPP, ±0.1%
AV = −1 (Note 8)
−71.2
0.11
0.053
33
140 200
1.03
5
7
dBc
%
deg
ns
V/µs
mV
TC VOS
IB
Input Offset Voltage Drift
Input Bias Current
(Note 11)
(Note 7)
8
−1.40
−2.6
−3.25
µV/˚C
µA
IOS Input Offset Current
20 800 nA
1000
RIN Common Mode Input
Resistance
AV +1, f = 1kHz, RS = 1MΩ
7.5 MΩ
CIN Common Mode Input
Capacitance
AV = +1, RS = 100kΩ
1.28
pF
CMVR
Common Mode Input Voltage CMRR ≥ 50dB
Range
−5.3
−5.2
−5.1
3.8 4.0
3.6
V
CMRR
Common Mode Rejection
Ratio
(Note 12)
72 95
dB
AVOL
Large Signal Voltage Gain
VO = 9VPP, RL = 2kΩ
VO = 8VPP, RL = 150Ω
88 100
84
74 77
70
dB
VO Output Swing
RL = 2kΩ, VID = 200mV
High
RL = 150Ω, VID = 200mV
RL = 50Ω, VID = 200mV
Output Swing
RL = 2kΩ, VID = −200mV
Low RL = 150Ω, VID = −200mV
RL = 50Ω, VID = −200mV
ISC Output Short Circuit Current Sourcing to Ground, (Note 10)
Sinking to Ground, (Note 10)
4.85
4.55
3.60
100
80
110
85
4.96
4.80
4.55
−4.97
−4.85
−4.65
168
190
−4.90
−4.55
−4.30
V
V
mA
5 www.national.com
5 Page 
Typical Performance Characteristics At TJ = 25˚C, V+ = +2.5, V− = −2.5V, RF = 330Ω for AV = +2,
RF = 1kΩ for AV = −1. Unless otherwise specified. (Continued)
On-Off Switching 10MHz
Slew Rate (Positive)
Slew Rate (Negative)
20030212
20030214
On-Off Switching of Sinewave
Power Sweep
20030213
CMRR vs. Frequency
20030215
20030216
11
20030218
www.national.com
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet LMH6639.PDF ] | |
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