www.fairchildsemi.com
FAN4272
Dual, Low Cost, +2.7V & +5V, Rail-to-Rail I/O Amplifier
Features at 2.7V
Description
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The FAN4272 is an ultra-low cost, low power, voltage feedback amplifier. At 5V, the FAN4272 uses only 160µA of
supply current per amplifier and is designed to operate from a
supply range of 2.5V to 5.5V (±1.25V to 2.75V). The input
voltage range exceeds the negative and positive rails.
130µA supply current per amplifier
4MHz bandwidth
Output swings to within 25mV of either rail
Input voltage range exceeds the rail by >250mV
4V/µs slew rate
16mA output current
22nV/√Hz input voltage noise
Operating temperature range: -40°C to +125°C
Directly replaces TLC2272 in single supply applications
Available in SOIC-8 and MSOP-8 package options
Available evaluation boards:
KEB006 (SOIC) and KEB010 (MSOP)
The FAN4272 offers high bipolar performance at a low CMOS
price. The FAN4272 offers superior dynamic performance
with a 4MHz small signal bandwidth and 4V/µs slew rate.
The combination of low power, high bandwidth, and rail-torail performance make the FAN4272 well suited for batterypowered communication/computing systems.
Large Signal Freq. Response Vs = +5V
Applications
Automotive applications
Portable/battery-powered applications
PCMCIA, USB
Mobile communications, cellular phones, pagers
Notebooks and PDA’s
Sensor Interface
A/D buffer
Active filters
Signal conditioning
Portable test instruments
Vo = 1Vpp
Magnitude (1dB/div)
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+In1
3
-Vs
+Vs
7
4
+
+
Out2
6
-In2
5
+In2
2
+In1
3
-Vs
4
8
+
+Vs
7
+
RL = 1kΩ
1.5
1.0
RL = 75Ω
0.5
RL = 200Ω
RL = 100Ω
0
-0.5
-1.0
-1.5
-2.0
-3
1
-In1
RL = 10kΩ
2.0
-2.5
MSOP
Out1
10
Output Swing vs. Load Vs = +5V
Output Voltage (0.25V/div)
8
1
2
1
Frequency (MHz)
2.5
SOIC
-In1
Vo = 2Vpp
0.1
FAN4272 Packages
Out1
Vo = 4Vpp
0
1
2
3
-In2
5
-1
Input Voltage (V)
Out2
6
-2
+In2
Rev. 2 December 2002
FAN4272
DATA SHEET
Electrical Specifications
(Vs = +5V, G = 2, RL = 10kΩ to Vs/2, Rf = 5kΩ, Ta = 25°C; unless otherwise noted)
Parameter
AC Performance
-3dB Bandwidth1
Large Signal Bandwidth
Gain Bandwidth Product
Rise and Fall Time
Overshoot
Slew Rate
2nd Harmonic Distortion
3rd Harmonic Distortion
THD
Input Voltage Noise
Crosstalk
DC Performance
Input Offset Voltage2
Average Drift
Input Bias Current2
Average Drift
Input Offset Current2
Power Supply Rejection Ratio2
Open Loop Gain
Quiescent Current Per Channel2
Input Characteristics
Input Resistance
Input Capacitance
Input Common Mode Voltage Range
Common Mode Rejection Ratio2
Output Characteristics
Output Voltage Swing
Conditions
Min.
G = +1, Vo = 0.02Vpp
G = +2, Vo = 0.2Vpp
G = +2, Vo = 2Vpp
-2
-420
DC, Vcm = 0V to Vs
RL = 10kΩ to Vs/22
RL = 1kΩ to Vs/2
RL = 200Ω to Vs/2
Output Current
Power Supply Operating Range
Max.
4
4.7
1.7
1.8
150
<1
6
-73
-75
0.03
23
95
1V step
1V step
1V step
2Vpp, 10kHz
2Vpp, 10kHz
2Vpp, 10kHz
>10kHz
>100kHz
DC
RL = 10kΩ
Typ.
-50
70
<0.5
8
90
100
MHz
MHz
MHz
MHz
ns
%
V/µs
dBc
dBc
%
nV/√Hz
dB
+2
420
+50
85
72
160
Unit
235
mV
µV/°C
nA
pA/°
nA
dB
dB
µA
12
1.7
-0.25 to 5.25
85
MΩ
pF
V
dB
0.09 to 4.91 0.031 to 4.976
0.094 to 4.94
0.315 to 4.865
±30
2.5
2.7
V
V
V
mA
V
58
5.5
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. For G = +1, Rf = 0.
2. Guaranteed by testing or statistical analysis at 25°C.
3. RL = 10kΩ to Vs/2.
Package Thermal Resistance
Package
8 lead SOIC
8 lead MSOP
Rev. 2 December 2002
θJA
152°C/W
206°C/W
3
