FAN4852IMU8X [ONSEMI]
低功耗双通道CMOS放大器, 9 MHz;
| 型号： | FAN4852IMU8X |
| 厂家： | 
ONSEMI |
| 描述： | 低功耗双通道CMOS放大器, 9 MHz 放大器 光电二极管 |
| 文件： | 总18页 (文件大小：3231K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON
Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s
technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA
Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended
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June 2011
FAN4852
9MHz Low-Power Dual CMOS Amplifier
Features
Description
.
.
.
.
.
.
.
0.8mA Supply Current
The FAN4852 is a dual, rail-to-rail output, low-power,
CMOS amplifier that consumes only 800µA of supply
current, while providing ±50mA of output short-circuit
current. This amplifier is designed to operate supplies
from 2.5V to 5V.
9 MHz Bandwidth
Output Swing to within 10mV of Either Rail
Input Voltage Range Exceeds the Rails
6V/µs Slew Rate
Additionally, the FAN4852 is EMI hardened, which
minimizes EMI interference. It has a maximum input
offset voltage of 1mV and an input common-mode range
that includes ground.
11nV/Hz Input Voltage Noise
Fully Specified at +3.3V and +5V Supplies
The FAN4852 is designed on a CMOS process and
provides 9MHz of bandwidth and 6V/μs of slew rate.
The combination of low-power, low-voltage operation
and a small package make this amplifier well suited for
general-purpose and battery-powered applications.
Applications
.
.
.
.
.
.
.
Piezoelectric Sensors
PCMCIA, USB
Mobile Communications / Battery-Powered Devices
Notebooks and PDAs
Active Filters
Signal Conditioning
Portable Test Instruments
Ordering Information
Part Number
Operating Temperature Range
Package
Packing Method
FAN4852IMU8X
-40 to +85°C
8-Lead MSOP Package
3000 on Tape and Reel
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
Pin Configuration
Figure 1. Pin Assignments
Pin Definitions
Pin #
Name Description
1
2
3
4
5
6
7
8
OUT1
-IN1
Output, Channel 1
Negative Input, Channel 1
Positive Input, Channel 1
Negative Supply
+IN1
-Vs
+IN2
-IN2
Positive Input, Channel 2
Negative Input, Channel 2
Output, Channel 2
OUT2
+Vs
Positive Supply
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
2
Absolute Maximum Ratings
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
VCC
VIN
Parameter
Min.
0
Max.
6
Unit
V
Supply Voltage
Input Voltage Range
Junction Temperature
Storage Temperature
-VS-0.5
+VS+0.5
+150
+150
+260
206
V
TJ
°C
TSTG
TL
-65
°C
Lead Soldering, 10 Seconds
Thermal Resistance(1)
°C
°C/W
JA
Note:
Package thermal resistance JEDEC standard, multi-layer test boards, still air.
1.
ESD Information
Symbol
Parameter
Min.
Typ.
Max.
Unit
Human Body Model, JESD22-A114
Charged Device Model, JESD22-C101
8
2
ESD
kV
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. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol
Parameter
Min.
-40
Typ.
Max.
+85
5.0
Unit
°C
TA
Operating Temperature Range
Supply Voltage Range
Vs
2.5
3.3
V
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
3
Electrical Specifications at +3.3V
+VS=+3.3V, -Vs = 0V, VCM = +Vs/2, and RL = 10KΩ to +Vs/2, unless otherwise noted.
Symbol
Parameter
Condition
Min.
Typ. Max. Unit
TA=25˚C
0.8
1.0
1.1
IS
Supply Current(2)
mA
Full Temperature Range
Sourcing VO=VCM, VIN=100mV,
TA=25˚C
25
20
28
20
50
Sourcing VO=VCM, VIN=100mV,
Full Temperature Range
ISC
Short-Circuit Output Current(2)
mA
Sinking VO=VCM, VIN=-100mV,
TA=25˚C
46
Sinking VO=VCM, VIN=-100mV,
Full Temperature Range
VRFpeak=100mVp, (-20dBVp)
f=400MHz
75
78
VRFpeak=100mVp, (-20dBVp)
f=900MHz
EMIRR EMI Rejection Ratio, +IN and -IN(4)
dB
VRFpeak=100mVp, (-20dBVp)
f=1800MHz
87
95
2.7V≤V+≤3.3V, VO=1V, TA=25˚C
75
74
76
75
PSRR
Power Supply Rejection Ratio(2)
dB
dB
2.7V≤V+≤3.3V, VO=1V,
Full Temperature Range
-0.2V<VCM <V+-1.2V, TA=25˚C
117
CMRR Common Mode Rejection Ratio(2)
-0.2V<VCM <V+-1.2V,
Full Temperature Range
Input Common Mode Voltage
CMIR
CMRR≥76dB
-0.2
2.1
V
Range(2)
TA=25˚C
±0.3
±1.0
±1.2
±2.0
VOS
Input Offset Voltage(2)
mV
Full Temperature Range
dVIO
IOS
Average Drift(3)
±0.4
1
µV/°C
pA
Input Offset Current
TA=
TA=25˚C
0.1
10.0
500
Ibn_Char
Input Bias Current(3)
pA
Full Temperature Range
f=1kHz
11
10
en
Input-Referred Voltage Noise
Input-Referred Current Noise
nV/Hz
pA/Hz
f=10kHz
iN
f=1kHz
0.005
Continued on the following page…
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
4
Electrical Specifications at +3.3V
+VS=+3.3V, -Vs = 0V, VCM = +Vs/2, and RL = 10KΩ to +Vs/2, unless otherwise noted.
Symbol
Parameter
Condition
Min.
Typ. Max. Unit
21
35
43
10
12
32
43
11
14
RL=2k to V+/2, TA=25˚C
RL=2k to V+/2,
Full Temperature Range
Output Voltage Swing High(2)
VO = (+VS) - VOUT
mV
4
RL=10k to V+/2, TA=25˚C
RL=10k to V+/2,
Full Temperature Range
VO
20
3
RL=2k to V+/2, TA=25˚C
RL=2k to V+/2,
Full Temperature Range
Output Voltage Swing Low(2)
VO = VOUT + (-VS)
mV
RL=10k to V+/2, TA=25˚C
RL=10k to V+/2,
Full Temperature Range
GBW
Gain Bandwidth Product
9
MHz
RL=2kΩ, VO=0.15 to 1.65V,
VO=3.15 to 1.65V, TA=25˚C
100
97
114
RL=2kΩ, VO=0.15 to 1.65V,
VO=3.15 to 1.65V, Full
Temperature Range
AVOL
Large Signal Voltage Gain(3)
dB
RL=10kΩ, VO=0.1 to 1.65V,
VO=3.2 to 1.65V, TA=25˚C
100
97
115
RL=10kΩ, VO=0.1 to 1.65V,
VO=3.2 to 1.65V, Full
Temperature Range
R
OUT
Closed-Loop Impedance
Input Resistance
f=6MHz
6
10
Ω
RIN
CIN
G
Common Mode
11
Input Capacitance
pF
Differential Mode
6
Φ
M
Phase Margin
Slew Rate
86
˚
SR
Av=+1, VO=1Vpp 10%-90%
6.1
0.006
V/µs
%
THD+N Total Harmonic Distortion + Noise f=1kHz, Av=1, BW=>500kHz
Notes:
2. 100% tested at TA=25°C.
3. Guaranteed by characterization.
4. EMI rejection ratio is defined as EMIRR – 20log (VRFpeak / ΔVOS).
© 2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN4852 • Rev. 4.0.0
5
Electrical Specifications at +5V
+VS=+5V, -VS = 0V, VCM = +VS/2, and RL = 10KΩ to +VS/2, unless otherwise noted.
Symbol
Parameter
Condition
Min.
Typ. Max. Unit
TA=25˚C
0.9
1.1
1.2
IS
Supply Current(5)
mA
Full Temperature Range
Sourcing VO=VCM, VIN=100mV,
TA=25˚C
60
48
58
44
90
Sourcing VO=VCM, VIN=100mV,
Full Temperature Range
ISC
Short-Circuit Output Current(5)
mA
Sinking VO=VCM, VIN=-100mV,
TA=25˚C
90
Sinking VO=VCM, VIN=-100mV,
Full Temperature Range
VRFpeak=100mVp, (-20dBVp)
f=400MHz
75
78
VRFpeak=100mVp, (-20dBVp)
f=900MHz
EMIRR EMI Rejection Ratio, +IN and -IN(7)
dB
dB
VRFpeak=100mVp, (-20dBVp)
f=1800MHz
87
2.7V≤V+≤5.5V, Vo=1V, TA=25˚C
75
74
105
PSRR
Power Supply Rejection Ratio(5)
2.7V≤V+≤5.5V, Vo=1V,
Full Temperature Range
CMRR Common Mode Rejection Ratio(5) -0.2V≤VCM≤V+-1.2V
77
122
dB
V
Input Common Mode Voltage
CMIR
VOS
CMRR≥77dB
-0.2
3.8
Range(5)
TA=25˚C
±0.3
±1.0
±1.2
±2.0
Input Offset Voltage(5)
mV
Full Temperature Range
dVIO
IOS
Average Drift(6)
±0.4
1
µV/°C
pA
Input Offset Current
TA=
TA=25˚C
0.1
10.0
500
Ibn_Char
Input Bias Current(6)
pA
Full Temperature Range
f=1kHz
11
10
nV/Hz
nV/Hz
pA/Hz
en
Input-Referred Voltage Noise
Input-Referred Current Noise
f=10kHz
iN
f=1kHz
0.005
Continued on the following page…
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
6
Electrical Specifications at +5V
+VS=+5V, -VS = 0V, VCM = +VS/2, and RL = 10KΩ to +VS/2, unless otherwise noted.
Symbol
Parameter
Condition
Min.
Typ. Max. Unit
25
39
47
11
13
38
50
15
1
RL=2k to V+/2, TA=25˚C
RL=2k to V+/2,
Full Temperature Range
Output Voltage Swing High(5)
mV
4
RL=10k to V+/2, TA=25˚C
RL=10k to V+/2,
Full Temperature Range
VO
24
3
RL=2k to V+/2, TA=25˚C
RL=2k to V+/2,
Full Temperature Range
Output Voltage Swing Low(5)
Gain Bandwidth Product
mV
RL=10k to V+/2, TA=25˚C
RL=10k to V+/2,
Full Temperature Range
GBW
9
MHz
RL=2kΩ, VO=0.15 to 2.5V,
VO=4.85 to 2.5V, TA=25˚C
105
102
105
102
118
RL=2kΩ, VO=0.15 to 2.5V,
VO=4.85 to 2.5V,
Full Temperature Range
AVOL
Large Signal Voltage Gain(6)
dB
RL=10kΩ, VO=0.1 to 2.5V,
VO=4.9 to 2.5V, TA=25˚C
120
RL=10kΩ, VO=0.1 to 2.5V,
VO=4.9 to 2.5V,
Full Temperature Range
ROUT
RIN
Closed-Loop Impedance
Input Resistance
f=6MHz
6
10
Ω
G
Common Mode
11
CIN
Input Capacitance
pF
Differential Mode
6
Φ
M
Phase Margin
Slew Rate
94
˚
SR
Av=+1, VO=1Vpp 10%-90%
6.2
0.006
V/µs
%
THD+N Total Harmonic Distortion + Noise f=1kHz, Av=1, BW=>500kHz
Notes:
5. 100% tested at TA=25°C.
6. Guaranteed by characterization.
7. EMI rejection ratio is defined as EMIRR – 20log (VRFpeak / ΔVOS).
© 2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN4852 • Rev. 4.0.0
7
Typical Performance Characteristics
+VS=+3.3V, -VS = 0V, VCM = +VS/2, and RL = 10KΩ to +VS/2, unless otherwise noted.
Figure 2. Supply Current vs. Supply Voltage
Figure 3. Sink Current vs. Supply Voltage
Figure 4. Source Current vs. Supply Voltage
Figure 5. Input Bias Current vs. VCM (3.3V)
Figure 6. Input Bias Current vs. VCM (5.0V)
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
8
Typical Performance Characteristics
+VS=+3.3V, -VS = 0V, VCM = +VS/2, and RL = 10KΩ to +VS/2, unless otherwise noted.
Figure 7. Output Swing High vs. Supply Voltage
Figure 8. Output Swing Low vs. Supply Voltage
Figure 9. Output Swing High vs. Supply Voltage
Figure 10. Output Swing Low vs. Supply Voltage
Figure 11. Output Voltage Swing vs. Load Current
at 5.0V
Figure 12. Output Voltage Swing vs. Load Current
at 3.3V
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
9
Typical Performance Characteristics
+VS=+3.3V, -VS = 0V, VCM = +VS/2, and RL = 10KΩ to +VS/2, unless otherwise noted.
Figure 13. Open-Loop Gain/Phase vs. Temperature
Figure 14. Open-Loop Gain/Phase vs. Load
Figure 15. Phase Margin vs. Capacitive Load
Figure 16. PSRR vs. Frequency
Figure 17. CMRR vs. Frequency
Figure 18. EMIRR vs. Power at 400MHz
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
10
Typical Performance Characteristics
+VS=+3.3V, -VS = 0V, VCM = +VS/2, and RL = 10KΩ to +VS/2, unless otherwise noted.
Figure 19. EMIRR vs. Power at 900MHz
Figure 20. EMIRR vs. Power at 1800MHz
Figure 21. EMIRR vs. Frequency at 5.0V
Figure 22. THD+N vs. Frequency
Figure 23. Large Signal Step Response
Figure 24. Small Signal Step Response
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
11
Typical Performance Characteristics
+VS=+3.3V, -VS = 0V, VCM = +VS/2, and RL = 10KΩ to +VS/2, unless otherwise noted.
Figure 25. Small Signal Step Response
Figure 26. Slew Rate vs. Supply Voltage
Figure 27. VOS vs. Supply Voltage
Figure 28. VOS vs. Temperature
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
12
Application Information
General Description
Overdrive Recovery
The FAN4852 amplifier includes single-supply, general-
purpose amplifiers, fabricated on a CMOS process. The
input and output are rail-to-rail and the part is unity gain
stable. The typical non-inverting circuit schematic is
shown in Figure 29.
Overdrive of an amplifier occurs when the output and/or
input ranges are exceeded. The recovery time varies
based on whether the input or output is overdriven and
by how much the range is exceeded. The FAN4852
typically recovers in less than 500ns from an overdrive
condition. Figure 31 shows the FAN4852 amplifier in an
overdriven condition.
Figure 31. Overdrive Recovery
Figure 29. Typical Non-Inverting Configuration
Driving Capacitive Loads
Input Common Mode Voltage
Figure 31 illustrates the response of the amplifier. A
small series resistance (RS) at the output, illustrated in
Figure 32, improves stability and settling performance.
RS values provided achieve maximum bandwidth with
less than 2dB of peaking. For maximum flatness, use a
larger RS. Capacitive loads larger than 500pF require
the use of RS.
The common mode input range includes ground. CMRR
does not degrade when input levels are kept 1.2V below
the rail. For the best CMRR when using a VS of 5V, the
maximum input voltage should 3.8V.
Figure 30. Circuit for Input Current Protection
Power Dissipation
The maximum internal power dissipation allowed 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.
Figure 32. Typical Topology for Driving a
Capacitive Load
Driving a capacitive load introduces phase-lag into the
output signal, which reduces phase margin in the
amplifier. The unity gain follower is the most sensitive
configuration. In a unity gain follower configuration, the
amplifier requires a 300series resistor to drive a
100pF load.
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
13
Layout Considerations
General layout and supply bypassing play major roles
in high-frequency performance. Fairchild 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:
Evaluation Board
Description
FAN4852-010
Single Channel, Dual Supply
+IN 1
V+
SMA
1. Include 6.8μF and 0.01μF ceramic capacitors.
R4 0.0
3
2
R6 0.0
OUT 1
SMA
+
-
R2 0.0
- IN1
1
2. Place the 6.8μF capacitor within 0.75 inches of
the power pin.
SMA
R-C4
10K
R5
50
R3
10K
3. Place the 0.01μF capacitor within 0.1 inches of
R1 10K
V-
the power pin.
C9
1uF
C10
0.1uF
V+
GND
V-
V+
V-
4. Remove the ground plane under and around the
part, especially near the input and output pins, to
reduce parasitic capacitance.
C11
1uF
C12
0.1uF
PWRCON
+IN 2
SMA
V+
Minimize all trace lengths to reduce series
inductances.
R10 0.0
5
6
R12 0.0
OUT 2
SMA
+
-
R8 0.0
7
- IN2
SMA
Refer to the evaluation board layouts shown in Figure
33 for more information.
R-C8
10K
R11
50
R9
10K
R7 10K
V-
When evaluating only one channel, complete the
following on the unused channel:
1. Ground the non-inverting input.
Figure 33. Evaluation Board Schematic
2. Short the output to the inverting input.
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
14
Physical Dimensions
Figure 34. 8-Lead, Molded Small-Outline Package (MSOP)
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
15
© 2010 Fairchild Semiconductor Corporation
FAN4852 • Rev. 4.0.0
www.fairchildsemi.com
16
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such
claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This
literature is subject to all applicable copyright laws and is not for resale in any manner.
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500mA High Efficiency Boost Regulator with Adjustable Output, Shutdown and Low Battery Detect
FAIRCHILD
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