Output Amplifiers. LMH6642 Datasheet

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LMH6642 Datasheet
Recommendation LMH6642 Datasheet
Part LMH6642
Description 3V / Low Power / 130MHz / 75mA Rail-to-Rail Output Amplifiers
Feature LMH6642; LMH6642/6643/6644 3V, Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers May 2003 LMH6642/6643.
Manufacture National Semiconductor
Datasheet
Download LMH6642 Datasheet




National Semiconductor LMH6642
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 150load 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 (150) 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 = 2k, 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 = 2k, 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
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National Semiconductor LMH6642
Absolute Maximum Ratings (Note 1)
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+ - V)
Voltage at Input/Output pins
Input Current
Storage Temperature Range
Junction Temperature (Note 4)
Soldering Information
2KV (Note 2)
200V (Note 9)
±2.5V
(Note 3), (Note 11)
13.5V
V+ +0.8V, V−0.8V
±10mA
−65˚C to +150˚C
+150˚C
Infrared or Convection Reflow(20 sec)
Wave Soldering Lead Temp.(10 sec)
235˚C
260˚C
Operating Ratings (Note 1)
Supply Voltage (V+ – V)
3V to 12.8V
Junction Temperature Range (Note 4)
−40˚C to +85˚C
Package Thermal Resistance (Note 4) (θJA)
SOT23-5
265˚C/W
SOIC-8
190˚C/W
MSOP-8
235˚C/W
SOIC-14
145˚C/W
TSSOP-14
155˚C/W
3V Electrical Characteristics
Unless otherwise specified, all limits guaranteed for at TJ = 25˚C, V+ = 3V, V= 0V, VCM = VO = V+/2, and RL = 2kto 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
PBW
en
−3dB BW
0.1dB Gain Flatness
Full Power Bandwidth
Input-Referred Voltage Noise
AV = +1, VOUT = 200mVPP
AV = +2, −1, VOUT = 200mVPP
AV = +2, RL = 150to V+/2,
RL = 402, VOUT = 200mVPP
AV = +1, −1dB, VOUT = 1VPP
f = 100kHz
f = 1kHz
80 115
46
19
40
17
48
MHz
MHz
MHz
nV/
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 = −1,
RL = 100to V+/2
VCM = 1V, NTSC, AV = +2
RL =150to V+/2
RL =1kto V+/2
VCM = 1V, NTSC, AV = +2
RL =150to V+/2
RL =1kto V+/2
f = 5MHz, Receiver:
Rf = Rg = 510, AV = +2
VO = 2VPP, ±0.1%, 8pF Load,
VS = 5V
AV = −1, VI = 2VPP
(Note 12)
(Note 7)
−48
0.17
0.03
0.05
0.03
47
dBc
%
deg
dB
68 ns
90 120
V/µs
±1 ±5 mV
±7
±5 µV/˚C
−1.50
−2.60
−3.25
µA
IOS Input Offset Current
20 800
nA
1000
RIN Common Mode Input
Resistance
3 M
CIN Common Mode Input
Capacitance
2 pF
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National Semiconductor LMH6642
3V Electrical Characteristics (Continued)
Unless otherwise specified, all limits guaranteed for at TJ = 25˚C, V+ = 3V, V= 0V, VCM = VO = V+/2, and RL = 2kto V+/2.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Min Typ Max
(Note 6) (Note 5) (Note 6)
Units
CMVR
Input Common-Mode Voltage CMRR 50dB
Range
−0.5
−0.2
−0.1
1.8 2.0
1.6
V
CMRR
Common Mode Rejection
Ratio
VCM Stepped from 0V to 1.5V
72 95
dB
AVOL
VO
ISC
IOUT
+PSRR
Large Signal Voltage Gain
Output Swing
High
Output Swing
Low
Output Short Circuit Current
Output Current
Positive Power Supply
Rejection Ratio
VO = 0.5V to 2.5V
RL = 2kto V+/2
VO = 0.5V to 2.5V
RL = 150to V+/2
RL = 2kto V+/2, VID = 200mV
RL = 150to V+/2, VID = 200mV
RL = 2kto V+/2, VID = −200mV
RL = 150to V+/2, VID = −200mV
Sourcing to V+/2
VID = 200mV (Note 10)
Sinking to V+/2
VID = −200mV (Note 10)
VOUT = 0.5V from either supply
V+ = 3.0V to 3.5V, VCM = 1.5V
80
75
74
70
2.90
2.80
50
35
55
40
75
96
82
2.98
2.93
25
75
95
110
±65
85
75
150
dB
V
mV
mA
mA
dB
IS Supply Current (per channel) No Load
2.70
4.00
4.50
mA
5V Electrical Characteristics
Unless otherwise specified, all limits guaranteed for at TJ = 25˚C, V+ = 5V, V= 0V, VCM = VO = V+/2, and RL = 2kto 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
PBW
en
−3dB BW
0.1dB Gain Flatness
Full Power Bandwidth
Input-Referred Voltage Noise
AV = +1, VOUT = 200mVPP
AV = +2, −1, VOUT = 200mVPP
AV = +2, RL = 150to V+/2,
Rf = 402, VOUT = 200mVPP
AV = +1, −1dB, VOUT = 2VPP
f = 100kHz
f = 1kHz
90 120
46
15
22
17
48
MHz
MHz
MHz
nV/
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
f = 5MHz, VO = 2VPP, AV = +2
NTSC, AV = +2
RL =150to V+/2
RL =1kto V+/2
NTSC, AV = +2
RL =150to V+/2
RL =1kto V+/2
f = 5MHz, Receiver:
Rf = Rg = 510, AV = +2
VO = 2VPP, ±0.1%, 8pF Load
−60
0.16
0.05
0.05
0.01
47
68
dBc
%
deg
dB
ns
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