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www.fairchildsemi.com
KM4200
Dual, Low Cost, +2.7V & +5V, 260MHz Rail-to-Rail Amplifier
Features
s
s
s
General Description
The KM4200 is a dual, low cost, voltage feedback
amplifier. This amplifier is designed to operate on
+2.7V, +5V, or ±2.5V supplies. The input voltage
range extends 300mV below the negative rail and
1.2V below the positive rail. The KM4100 (single) and
KM4101 (single with disable) are also available.
The KM4200 offers superior dynamic performance
with a 260MHz small signal bandwidth and 145V/µs
slew rate. The combination of low power, high out-
put current drive, and rail-to-rail performance make
the KM4200 well suited for battery-powered com-
munication/computing systems.
The combination of low cost and high performance
make the KM4200 suitable for high volume applica-
tions in both consumer and industrial applications
such as wireless phones, scanners, and color copiers.
s
s
s
s
s
s
s
260MHz bandwidth
Fully specified at +2.7V and +5V supplies
Output voltage range: 0.036V to 4.953V;
Vs = +5; RL = 2kΩ
Input voltage range: -0.3V to +3.8V; Vs = +5
145V/µs slew rate
4.2mA supply current per amplifier
±55mA linear output current
±85mA short circuit current
Directly replaces AD8052 and AD8042 in single
supply applications
Small package options (SOIC and MSOP)
Applications
s
s
s
s
s
s
s
s
s
KM4200 Packages
SOIC
Out1
-In1
+In1
-V
s
1
2
3
4
-
+
Output Voltage (0.5V/div)
A/D driver
Active filters
CCD imaging systems
CD/DVD ROM
Coaxial cable drivers
High capacitive load driver
Portable/battery-powered applications
Twisted pair driver
Video driver
Output Swing
2.7
8
7
-
+
+V
s
Out2
-In2
+In2
V
s
= +2.7V
R
L
= 2kΩ
G = -1
0
Time (0.5µs/div)
6
5
MSOP
Out1
-In1
+In1
-V
s
1
2
3
4
-
+
8
7
-
+
+V
s
Out2
-In2
+In2
6
5
REV. 1A February 2001
DATA SHEET
KM4200
KM4200 Electrical Characteristics
PARAMETERS
Case Temperature
Frequency Domain Response
-3dB bandwidth
full power bandwidth
gain bandwidth product
Time Domain Response
rise and fall time
settling time to 0.1%
overshoot
slew rate
Distortion and Noise Response
2nd harmonic distortion
3rd harmonic distortion
THD
input voltage noise
input current noise
crosstalk
DC Performance
input offset voltage
average drift
input bias current
average drift
input offset current
power supply rejection ratio
open loop gain
quiescent current per amplifier
Input Characteristics
input resistance
input capacitance
input common mode voltage range
common mode rejection ratio
Output Characteristics
output voltage swing
linear output current
short circuit output current
power supply operating range
(V
s
= +2.7V, G = 2, R
L
= 2kΩ to V
s
/2; unless noted)
TYP
+25°C
MIN & MAX
+25°C
MHz
MHz
MHz
MHz
ns
ns
%
V/µs
dBc
dBc
dB
nV/√Hz
pA/√Hz
dB
±8
±8
±1
52
65
5
mV
µV/°C
µA
nA/°C
µA
dB
dB
mA
MΩ
pF
V
dB
V
V
V
mA
mA
mA
V
1
UNITS
NOTES
CONDITIONS
G = +1, Vo = 0.05V
pp
G = +2, Vo = 0.2V
pp
G = +2, Vo = 2V
pp
0.2V step
1V step
0.2V step,
2.7V step, G = -1
1V
pp
, 5MHz
1V
pp
, 5MHz
1V
pp
, 5MHz
>1MHz
>1MHz
10MHz
215
85
36
86
3.7
40
9
130
79
82
77
16
1.3
65
-1.6
10
3
7
0.1
57
75
3.9
4.3
1.8
-0.3 to 1.5
87
1
1
1
1
1
2
2
2
2
2
2
DC
DC, V
cm
= 0V to V
s
- 1.5
R
L
= 10kΩ to V
s
/2
R
L
= 2kΩ to V
s
/2
R
L
= 150Ω to V
s
/2
-40°C to +85°C
72
2
0.023 to 2.66
0.025 to 2.653
0.1 to 2.6
0.065 to 2.55
0.3 to 2.325
±55
±50
±85
2.7
2.5 to 5.5
2
2
Min/max ratings are based on product characterization and simulation. Individual parameters are tested as noted. Outgoing quality levels
are determined from tested parameters.
NOTES:
1) Rf = 1kΩ was used used for optimal performance. (For G = +1, Rf = 0)
2) 100% tested at +25°C.
Absolute Maximum Ratings
supply voltage
0 to +6V
maximum junction temperature
+175°C
storage temperature range
-65°C to +150°C
lead temperature (10 sec)
+300°C
operating temperature range (recommended) -40°C to +85°C
input voltage range
+V
s
+0.5V; -V
s
-0.5V
internal power dissipation
see power derating curves
Package Thermal Resistance
Package
8 lead SOIC
8 lead MSOP
θ
JA
152°C/W
206°C/W
2
REV. 1A February 2001
KM4200
DATA SHEET
KM4200 Electrical Characteristics
Parameters
Case Temperature
Frequency Domain Response
-3dB bandwidth
full power bandwidth
gain bandwidth product
Time Domain Response
rise and fall time
settling time to 0.1%
overshoot
slew rate
Distortion and Noise Response
2nd harmonic distortion
3rd harmonic distortion
THD
input voltage noise
input current noise
crosstalk
DC Performance
input offset voltage
average drift
input bias current
average drift
input offset current
power supply rejection ratio
open loop gain
quiescent current per amplifier
Input Characteristics
input resistance
input capacitance
input common mode voltage range
common mode rejection ratio
Output Characteristics
output voltage swing
linear output current
short circuit output current
power supply operating range
Conditions
(V
s
= +5V, G = 2, R
L
= 2kΩ to V
s
/2; unless noted)
TYP
+25°C
Min & Max
+25°C
MHz
MHz
MHz
MHz
ns
ns
%
V/µs
dBc
dBc
dB
nV/√Hz
pA/√Hz
dB
±8
±8
±0.8
52
68
5.2
mV
µV/°C
µA
nA/°C
µA
dB
dB
mA
MΩ
pF
V
dB
V
V
V
mA
mA
mA
V
1
UNITS
NOTES
G = +1, Vo = 0.05V
pp
G = +2, Vo = 0.2V
pp
G = +2, Vo = 2V
pp
0.2V step
2V step
0.2V step,
5V step, G = -1
2V
pp
, 5MHz
2V
pp
, 5MHz
2V
pp
, 5MHz
>1MHz
>1MHz
10MHz
260
90
40
90
3.6
40
7
145
71
78
70
16
1.3
62
1.4
10
3
7
0.1
57
78
4.2
4.3
1.8
-0.3 to 3.8
87
1
1
1
1
1
2
2
2
2
2
2
DC
DC, V
cm
= 0V to V
s
- 1.5
R
L
= 10kΩ to V
s
/2
R
L
= 2kΩ to V
s
/2
R
L
= 150Ω to V
s
/2
-40°C to +85°C
72
2
0.027 to 4.97
0.036 to 4.953
0.1 to 4.9
0.12 to 4.8
0.3 to 4.625
±55
±50
±85
5
2.5 to 5.5
2
2
Min/max ratings are based on product characterization and simulation. Individual parameters are tested as noted. Outgoing quality levels
are determined from tested parameters.
NOTES:
1) Rf = 1kΩ was used used for optimal performance. (For G = +1, Rf = 0)
2) 100% tested at +25°C.
REV. 1A February 2001
3
DATA SHEET
KM4200
KM4200 Performance Characteristics
Non-Inverting Freq. Response V
s
= +5V
Normalized Magnitude (2dB/div)
G=1
R
f
= 0
(V
s
= +5V, G = 2, R
f
= 2kΩ, R
L
= 2kΩ to V
s
/2; unless noted)
Inverting Frequency Response V
s
= +5V
Normalized Magnitude (1dB/div)
G = -1
R
f
= 2kΩ
G=2
R
f
= 1kΩ
G = 10
R
f
= 2kΩ
G = -10
R
f
= 2kΩ
G = -5
R
f
= 2kΩ
G=5
R
f
= 2kΩ
G = -2
R
f
= 2kΩ
0.1
1
10
100
0.1
1
10
100
Frequency (MHz)
Non-Inverting Freq. Response V
s
= +2.7
Normalized Magnitude (2dB/div)
Normalized Magnitude (1dB/div)
G=1
R
f
= 0
G=2
R
f
= 1kΩ
Frequency (MHz)
Inverting Frequency Response V
s
= +2.7V
G = -1
R
f
= 2kΩ
G = 10
R
f
= 2kΩ
G = -10
R
f
= 2kΩ
G = -5
R
f
= 2kΩ
G=5
R
f
= 2kΩ
G = -2
R
f
= 2kΩ
0.1
1
10
100
0.1
1
10
100
Frequency (MHz)
Frequency Response vs. C
L
Frequency (MHz)
Large Signal Frequency Response
Magnitude (1dB/div)
C
L
= 100pF
R
s
= 25Ω
C
L
= 50pF
R
s
= 33Ω
+
-
1kΩ
1kΩ
Magnitude (1dB/div)
V
o
= 1V
pp
V
o
= 2V
pp
R
s
C
L
R
L
C
L
= 20pF
R
s
= 20Ω
C
L
= 10pF
R
s
= 0Ω
0.1
1
10
100
0.1
1
10
100
Frequency (MHz)
Frequency Response vs. Temperature
100
90
Frequency (MHz)
Input Voltage Noise
Voltage Noise (nV/√Hz)
1
10
Magnitude (0.5dB/div)
80
70
60
50
40
30
20
10
0
100
1k
10k
100k
1M
Frequency (MHz)
Frequency (Hz)
4
REV. 1A February 2001
嵌入式系统
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