Features
Description
200 µA Supply Current per Amplifier
The FAN4174 (single) and FAN4274 (dual) are voltage
feedback amplifiers w ith CMOS inputs that consume
only 200 µA of supply current per amplifier, w hile
providing ±33 mA of output short-circuit current. These
amplifiers are designed to operate 5 V supplies. The
common mode voltage range extends beyond the
negative and positive rails.
3.7 MHz Bandw idth
Output Sw ing to Within 10 mV of Either Rail
Input Voltage Range Exceeds the Rails
3 V / µs Slew Rate
25 nV / √Hz Input Voltage Noise
The FAN4174 and FAN4274 are designed on a CMOS
process and provide 3.7 MHz of bandw idth and 3 V / μs
of slew rate at a supply voltage of 5 V.
Replaces KM4170 and KM4270
FAN4174 Competes w ith OPA340 and TLV2461;
Available in a SOT23-5 Package
FAN4274 Competes w ith OPA2340 and TLV2462;
Available in MSOP-8 Package
Fully Specified at +5 V Supplies
Applications
These amplifiers operate and are reliable over a w ide
temperature range of -40°C to +125°C.
The combination of extended temperature operation,
low
pow er, rail-to-rail performance, low -voltage
operation, and a tiny package optimize this amplifier
family for use in many industrial, general-purpose, and
battery-pow ered applications.
Motor Control
Portable / Battery-pow ered Applications
PCMCIA, USB
Mobile Communications, Cellular Phones, Pagers
Notebooks and PDAs
Sensor Interface
A/D Buffer
Active Filters
Signal Conditioning
Portable Test Instruments
Figure 1. Frequency vs. Gain
Ordering Information
Part Number
Operating
Temperature Range
Package
Packing Method
FAN4174IS5X
-40 to +125°C
5-Lead SOT23 Package
Tape and Reel (3000)
FAN4274IMU8X
-40 to +125°C
8-Lead Molded Small-Outline Package
Tape and Reel (3000)
© 2004 Semiconductor Components Industries, LLC
December-2107, Rev. 2
Publication Order number
FAN4274/D
FAN4174 / FAN4274 — Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
FAN4174 / FAN4274
Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
Figure 2. Typical Application Circuit
Pin Configurations
Figure 3. FAN4174 SOT23
Figure 4. FAN4274 MSOP
FAN4174 Pin Assignments
Pin #
Name
Description
1
OUT
Output
2
-V S
Negative Supply
3
+IN
Positive Supply
4
-IN
Negative Input
5
+V S
Positive Supply
FAN4274 Pin Assignments
Pin #
Name
Description
1
OUT1
2
-IN1
Negative Input, Channel 1
3
+IN1
Positive Input, Channel 1
4
-V S
Negative Supply
5
+IN2
Positive Input, Channel 2
6
-IN2
Negative Input, Channel 2
7
OUT2
8
+V S
Output, Channel 1
Output, Channel 2
Positive Supply
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FAN4174 / FAN4274 — Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
Typical Application
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only. Functional operation under any of these conditions is NOT
implied. Performance and reliability are guaranteed only if operating conditions are not exceeded.
Symbol
Parameter
V CC
Supply Voltage
V IN
Input Voltage Range
TJ
Junction Temperature
TSTG
Storage Temperature
Max.
Unit
0
6
V
-V S-0.5
+V S+0.5
V
+150
°C
+150
°C
+300
°C
-65
TL
Lead Soldering, 10 Seconds
ΘJA
Thermal Resistance
(1)
Min.
5-Lead SOT23
256
8-Lead MSOP
206
°C/W
Note:
1.
Package thermal resistance JEDEC standard, multi-layer test boards, still air.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. ON Semiconductor
does not recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol
+V s
TA
Parameter
Min.
Max.
Unit
Supply Voltage
2.30
5.25
V
Operating Temperature Range
-40
+125
°C
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FAN4174 / FAN4274 — Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
Absolute Maximum Ratings
V S=+2.7 V, G=2, RL=10 kΩ to V S/2, RF=5 kΩ; unless otherw ise noted.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
Frequency Dom ain Response
UGBW
BWSS
GBWP
G=+1
-3 dB Bandw idth
Gain Bandw idth Product
4.0
MHz
2.5
MHz
4
MHz
Tim e Dom ain Response
tR, f F
Rise and Fall Time
V O=1.0 V Step
300
ns
OS
Overshoot
V O=1.0 V Step
5
%
SR
Slew Rate
V O=3 V Step, G=-1
3
V/µs
Distortion and Noise Response
HD2
2nd Harmonic Distortion
V O=1 V PP, 10 kHz
-66
dBc
HD3
3rd Harmonic Distortion
V O=1 V PP, 10 kHz
-67
dBc
THD
Total Harmonic Distortion
V O=1 V PP, 10 kHz
0.1
%
26
nV/√Hz
-100
dB
en
Input Voltage Noise
XTALK
Crosstalk (FAN4274)
100 kHz
DC Perform ance
(2)
V IO
Input Offset Voltage
dV IO
Average Drift
Ibn
PSRR
A OL
IS
-6
Input Bias Current
(2)
Pow er Supply Rejection Ratio
DC
Open-loop Gain
DC
Supply Current per Amplifier
50
(2)
0
+6
mV
2.1
µV/°C
5
pA
73
dB
98
dB
200
300
µA
Input Characteristics
RIN
Input Resistance
10
GΩ
CIN
Input Capacitance
1.4
pF
-0.3 to
2.8
V
CMIR
Input Common Mode Voltage Range
CMRR
Common Mode
(2)
Rejection Ratio
FAN4174
DC, V CM =0 V to 2.2 V
50
65
FAN4274
DC, V CM =0 V to 2.2 V
50
65
0.03
0.01 to
2.69
dB
Output Characteristics
RL=10 kΩ to V S/2
VO
(2)
Output Voltage Sw ing
RL=1 kΩ to V S/2
ISC
Short-Circuit Output Current
VS
Pow er Supply Operating Range
Note:
2. 100% tested at 25°C.
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4
0.05 to
2.55
2.65
V
+34/-12
mA
2.5 to
5.5
V
FAN4174 / FAN4274 — Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
Electrical Specifications at +2.7 V
V S=+5 V, G=2, RL=10 kΩ to V S/2, RF= 5 kΩ; unless otherw ise noted.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
Frequency Dom ain Response
UGBW
-3dB Bandw idth
G=+1, TA=85°C
3.7
G=+1, TA=125°C
3.2
BWSS
MHz
2.3
MHz
TA=85°C
3.7
TA=125°C
3.2
Rise and Fall Time
V O=1.0 V Step
300
ns
OS
Overshoot
V O=1.0 V Step
5
%
SR
Slew Rate
V O=3 V Step, G=-1
3
V/µs
GBWP
Gain Bandw idth Product
MHz
Tim e Dom ain Response
tR, f F
Distortion and Noise Response
HD2
2nd Harmonic Distortion
V O=1 V PP, 10 kHz
-80
dBc
HD3
3rd Harmonic Distortion
V O=1 V PP, 10 kHz
-80
dBc
THD
Total Harmonic Distortion
V O=1 V PP, 10 kHz
0.02
%
25
nV/√Hz
100 kHz
-100
dB
en
Input Voltage Noise
XTALK
Crosstalk (FAN4274)
DC Perform ance
(3)
V IO
Input Offset Voltage
dV IO
Average Drift
Ibn
PSRR
A OL
IS
-8
Input Bias Current
(3)
Pow er Supply Rejection Ratio
DC
Open-loop Gain
DC
Supply Current per Amplifier
50
0
+8
µV/°C
5
pA
73
dB
102
(3)
mV
2.9
200
dB
300
µA
Input Characteristics
RIN
Input Resistance
CIN
Input Capacitance
CMIR
CMRR
Common Mode Rejection Ratio
DC, V CM =0 V to V S
GΩ
1.2
pF
-0.3 to
5.1
V
58
73
dB
0.03
0.01 to
4.99
Input Common Mode Voltage Range
(3)
10
Output Characteristics
RL=10 kΩ to V S/2
VO
(3)
Output Voltage Sw ing
RL=1 kΩ to V S/2
ISC
VS
Short-Circuit Output Current
Pow er Supply Operating Range
Note:
3. 100% tested at 25°C.
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5
0.1 to
4.9
4.95
V
±33
mA
2.5 to
5.5
V
FAN4174 / FAN4274 — Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
Electrical Specifications at +5 V
V S=+2.7 V, G=2, RL=10 kΩ to V S/2, RF=5 kΩ; unless otherw ise noted.
Figure 5. Non-Inverting Frequency Response (+5 V)
Figure 6. Inverting Frequency Response (+5 V)
Figure 7. Non-Inverting Frequency Response
Figure 8. Inverting Frequency Response
Figure 9. Frequency Response vs. CL
Figure 10. Frequency Response vs. RL
Figure 11. Large Signal Frequency Response (+5 V)
Figure 12. Open-loop Gain and Phase vs. Frequency
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FAN4174 / FAN4274 — Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
Typical Performance Characteristics
V S=+2.7 V, G=2, RL=10 kΩ to V S/2, RF=5 kΩ; unless otherw ise noted.
Figure 13. 2nd and 3rd Harm onic Distortion
Figure 14. 2nd Harm onic Distortion vs. V O
Figure 15. 3rd Harm onic Distortion vs. V O
Figure 16. CMRR V S=5 V
Figure 17. PSRR V S=5 V
Figure 18. Output Sw ing vs. Load
Figure 19. Pulse Response vs. Com m on-Mode Voltage
Figure 20. Input Voltage Noise
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FAN4174 / FAN4274 — Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
Typical Performance Characteristic
General Description
Overdrive Recovery
The FAN4174 amplifier includes single-supply, generalpurpose, voltage-feedback amplifiers, fabricated on a biCMOS process. The family features a rail-to-rail input
and output and is unity gain stable. The typical noninverting circuit schematic is show n in Figure 21.
Overdrive of an amplifier occurs w hen the output and/or
input ranges are exceeded. The recovery time varies
based on w hether the input or output is overdriven and
by how much the range is exceeded. The FAN4174
typically recovers in less than 500 ns from an overdrive
condition. Figure 23 show s the FAN4174 amplifier in an
overdriven condition.
Figure 21. Typical Non-inverting Configuration
Figure 23. Overdrive Recovery
Input Common Mode Voltage
Driving Capacitive Loads
The common mode input range extends to 300 mV
below ground and to 100 mV above V S in single supply
operation. Exceeding these values does not cause
phase reversal; how ever, if the input voltage exceeds
the rails by more than 0.5 V, the input ESD devices
begin to conduct. The output stays at the rail during this
overdrive condition. If the absolute maximum input V IN
(700 mV beyond either rail) is exceeded, externally limit
the input current to ±5 mA, as show n in Figure 22.
Figure 9 illustrates the response of the FAN4174
amplifier. A small series resistance (RS) at the output of
the amplifier, illustrated in Figure 24, improves stability
and settling performance. RS values in Figure 9 achieve
maximum bandw idth w ith less than 2 dB of peaking. For
maximum flatness, use a larger RS. Capacitive loads
larger than 500 pF require the use of RS.
Figure 24. Typical Topology for Driving a
Capacitive Load
Figure 22. Circuit for Input Current Protection
Driving a capacitive load introduces phase-lag into the
output signal, w hich reduces phase margin in the
amplifier. The unity gain follow er is the most sensitive
configuration. In a unity gain follow er configuration, the
FAN4174 amplifier requires a 300 Ω series resistor to
drive a 100 pF load.
Power Dissipation
The maximum internal pow er dissipation allow ed is
directly related to the maximum junction temperature. If
the maximum junction temperature exceeds 150°C,
performance degradation occurs. If the maximum
junction temperature exceeds 150°C for an extended
time, device failure may occur.
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FAN4174 / FAN4274 — Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
Application Information
General layout and supply bypassing play major roles in
high-frequency
performance.
ON
Semiconductor
evaluation boards help guide high-frequency layout and
aid in device testing and characterization. Follow the
steps below as a basis for high-frequency layout:
1.
Include 6.8 μF and 0.01 μF ceramic capacitors.
2.
Place the 6.8 μF capacitor w ithin 19.05 mm
(0.75 inches) of the pow er pin.
3.
Place the 0.01 μF capacitor w ithin 2.54 mm (0.1
inches) of the pow er pin.
4.
Remove the ground plane under and around the
part, especially near the input and output pins, to
reduce parasitic capacitance.
Minimize all trace lengths to reduce series inductances.
Refer to the evaluation board layouts show n in Figure
27 through Figure 30 for more information.
When evaluating only one channel, complete the
follow ing on the unused channel:
1.
Ground the non-inverting input.
2.
Short the output to the inverting input.
Figure 25. FAN4174 Evaluation Board Schem atic
(KEV002)
Evaluation Board Information
The follow ing evaluation boards are available to aid in
the testing and layout of this device:
Board
Description
Product
KEB002
Single Channel, Dual
Supply, 5 and 6-Lead
SOT23
FAN4174IS5X
KEB010
Dual Channel, Dual
Supply 8-Lead MSOP
FAN4274IMU8X
Evaluation board schematics are show n in Figure 25
and Figure 26; layouts are show n in Figure 27 through
Figure 30.
Figure 26. FAN4274 Evaluation Board Schem atic
(KEB010)
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FAN4174 / FAN4274 — Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
Layout Considerations
Figure 27. KEB002 (Top Side)
Figure 28. KEB002 (Bottom Side)
Figure 29. KEB010 (Top Side)
Figure 30. KEB010 (Bottom Side)
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FAN4174 / FAN4274 — Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
Board Layout Information
3.00
2.80
5
SYMM
CL
0.95
0.95
A
4
B
3.00
2.60
1.70
1.50
1
2
2.60
3
(0.30)
1.00
0.50
0.30
0.95
1.90
0.20
C A B
0.70
TOP VIEW
LAND PATTERN RECOMMENDATION
SEE DETAIL A
1.30
0.90
1.45 MAX
0.15
0.05
0.22
0.08
C
0.10 C
NOTES: UNLESS OTHEWISE SPECIFIED
GAGE PLANE
A) THIS PACKAGE CONFORMS TO JEDEC
MO-178, ISSUE B, VARIATION AA,
B) ALL DIMENSIONS ARE IN MILLIMETERS.
C) MA05Brev5
0.25
8°
0°
0.55
0.35
0.60 REF
SEATING PLANE
Figure 31. 5-Lead SOT-23 Package
Package drawings are provided as a service to customers considering ON Semiconductor components. Drawings may change in any
manner without notice. Please note the revision and/or date on the drawing and contact a ON Semiconductor representative to verify
or obtain the most recent revision. Package specifications do not expand the terms of ON Semiconductor’s worldwide terms and conditions,
specifically the warranty therein, which covers ON Semiconductor products.
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FAN4174 / FAN4274 — Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
Physical Dimensions
FAN4174 / FAN4274 — Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
Physical Dimensions
Figure 32. 8-Lead Molded Sm all Outline Package (MSOP)
Package drawings are provided as a service to customers considering ON Semiconductor components. Drawings may change in any
manner without notice. Please note the revision and/or date on the drawing and contact a ON Semiconductor representative to verify
or obtain the most recent revision. Package specifications do not expand the terms of ON Semiconductor’s worldwide terms and conditions,
specifically the warranty therein, which covers ON Semiconductor products.
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12
FAN4174 / FAN4274 — Single and Dual, Rail-to-Rail I/O, CMOS Amplifier
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