Pr
eliminary
January 2001
KM4210
Dual, 0.5mA, Low Cost, +2.7V and
+5V, 75MHz Rail-to-Rail Amplifier
Product Brief
Features
I
505
A supply current per amplifier
I
75MHz bandwidth
I
Fully specified at +2.7V and +5V supplies
I
Output voltage range: 0.07V to 4.86V; V
s
= +5
I
Input voltage range: -0.3V to +3.8V; V
s
= +5
I
50V/
s slew rate
I
15mA linear output current
I
30mA output short circuit current
I
12nV/
Hz input voltage noise
I
Directly replaces AD8032
I
Package option (MSOP-8)
Applications
I
Portable/battery-powered applications
I
A/D buffer
I
Active filters
I
Signal conditioning
I
Portable test instruments
General Description
The KM4210 is a dual, low power, low cost, voltage
feedback amplifier. The KM4210 uses only 505
A
of supply current per amplifer, and 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 KM4210 offers high bipolar performance at a
low CMOS price. The KM4210 offers superior
dynamic performance with a 75MHz small signal
bandwidth and 50V/
s slew rate. The combination
of low power, high bandwidth, and rail-to-rail
performance make the KM4210 well suited for
battery-powered communication/computing systems.
The KM4110 (single) and KM4120 (single with disable)
are also available.
2001 Fairchild Semiconductor International
www.fairchildsemi.com
Patents Pending
Outperforms the competition in
single-supply applications at a
lower cost!
Advertised
KM4210
Competitor
Units
Specifications
A
G = 1 BW
75
80
MHz
Noise
12
15
nV/
Hz
Slew rate
50
30
V/
s
Supply current/amp
0.5
0.8
A
Typical Performance Plot
Ordering Information
Part No.
Package
Container
Pack Qty
Eval Bd*
KM4210IM8
MSOP-8
Rail
50
KEB010
KM4210IM8TR3
MSOP-8
Reel
4000
KEB010
Temperature range for all parts: -40C to +85C.
* Evaluation boards are available to aid in the evaluation of these products. See the full
data sheet or website for complete information.
P r e l i m i n a r y
TBD
SOIC shown
(not actual size)
-
+
-
+
1
2
3
4
Out1
-In1
+In1
-V
s
+V
s
Out2
-In2
+In2
8
7
6
5
MSOP
Pr
eliminary
KM4210
Typical Specifications
P r e l i m i n a r y
Available Packages
Typical Circuit
Configuration
+
-
1/2
KM4210
R
f
0.01
F
6.8
F
Out1
In1
+V
s
+
R
g
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT
OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:
1.
Life support devices or systems are devices or systems which, (a) are intended for
surgical implant into the body, or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a significant injury of the user.
2.
A critical component in any component of a life support device or system whose failure
to perform can be reasonably expected to cause the failure of the life support device or
system, or to affect its safety or effectiveness.
Lit No. XXXXXX-XXX
Electrical Characteristics
(G = +2, R
f
= 1k
, R
L
= 1k
to V
s
/2, T
a
= +25C, unless noted)
PARAMETERS
CONDITIONS
TYP
TYP
UNITS
Vs = +2.7V Vs = +5V
Frequency Domain Response
-3dB bandwidth
G = +1, V
o
= 0.05V
pp
x
75
MHz
G = +2, V
o
< 0.2V
pp
x
35
MHz
full power bandwidth
G = +2, V
o
= 2V
pp
x
x
MHz
gain bandwidth product
x
x
MHz
Time Domain Response
rise and fall time
0.2V step
y
y
ns
settling time to 0.1% 2V step
x
x
ns
overshoot
0.2V step
y
y
%
slew rate
5V step
x
50
V/
s
Distortion and Noise Response
2nd harmonic distortion
2V
pp
, 1MHz
y
y
dBc
3rd harmonic distortion 2V
pp
, 1MHz
y
y
dBc
THD
2V
pp
, 1MHz
x
x
dB
input voltage noise
>1MHz
x
12
nV/Hz
input current noise >1MHz
x
x
pA/Hz
DC Performance
input offset voltage
x
-1
mV
average drift
x
10
V/C
input bias current
x
1.2
A
average drift
y
3.5
nA/C
input offset current
x
30
nA
power supply rejection ratio DC
x
65
dB
open loop gain
x
80
dB
quiescent current per amplifier
x
505
A
Input Characteristics
input resistance
x
x
M
input capacitance
x
x
pF
input common mode voltage range
x
-0.3 to 3.8
V
common mode rejection ratio
DC
x
92
dB
Output Characteristics
output voltage swing
R
L
= 10k
to V
s
/2
x
x
V
R
L
= 1k
to V
s
/2 x
0.07 to 4.86
V
linear output current
x
15
mA
short circuit output current
x
30
mA
power supply operating range
2.5 to 5.5
V
*x and y = TBD
Absolute Maximum Ratings
supply voltage
0 to +6V
maximum junction temperature
+175C
storage temperature range
-65C to +150C
lead temperature (10 sec)
+300C
operating temperature range
-40 to +85C
input voltage range
+V
s
+ 0.5V, -V
s
- 0.5V
internal power disapation
see power derating curves in the full data sheet
ja
for 8 lead MSOP
206C/W
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