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부품번호 | FAN4931 기능 |
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기능 | Ultra-Low Cost - Rail To Rail I/O for CMOS Amplifier | ||
제조업체 | Fairchild Semiconductor | ||
로고 | |||
전체 11 페이지수
www.DataSheet4U.com
November 2009
FAN4931
Ultra-Low Cost, Rail-to-Rail I/O, CMOS Amplifier
Features
200µA Supply Current per Amplifier
3.7MHz Bandwidth
Output Swing to within 10mV of Either Rail
Input Voltage Range Exceeds the Rails
3V/µs Slew Rate
25nV/√Hz Input Voltage Noise
FAN4931 Competes with LMV931; Available in
SC70-5 Package
Fully Specified at +2.7V and +5V Supplies
Description
FAN4931 is an ultra-low cost voltage feedback amplifier
with CMOS inputs that consumes only 200µA of supply
current, while providing ±33mA of output short-circuit
current. This amplifier is designed to operate from 2.5V
to 5V supplies. The common-mode voltage range
extends beyond the negative and positive rails.
The FAN4931 is designed on a CMOS process and
provides 3.7MHz of bandwidth and 3V/μs of slew rate at
a supply voltage of 5V. The combination of low power,
rail-to-rail performance, low-voltage operation, and tiny
package options make this amplifier well suited for use
in general-purpose and battery-powered applications.
Applications
Portable / Battery-Powered 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
FAN4931IP5X
-40 to +85°C
5-Lead SC70 Package
Eco Status
Packing
Method
Green
Tape and Reel (3000)
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2008 Fairchild Semiconductor Corporation
FAN4931 • Rev. 1.0.0
www.fairchildsemi.com
www.DataSheet4U.com
Electrical Specifications at +2.7V
VS=+2.7V, G=2, RL=10kΩ to VS/2, RF=5kΩ; unless otherwise noted.
Symbol
Parameter
Frequency Domain Response
UGBW
BWSS
-3dB Bandwidth
GBWP
Gain Bandwidth Product
Time Domain Response
tR, fF
Rise and Fall Time
OS Overshoot
SR Slew Rate
Distortion and Noise Response
HD2
2nd Harmonic Distortion
HD3
3rd Harmonic Distortion
THD
Total Harmonic Distortion
en Input Voltage Noise
DC Performance
VIO Input Offset Voltage(2)
dVIO
Average Drift
Ibn
PSRR
Input Bias Current
Power Supply Rejection Ratio(2)
AOL Open-Loop Gain
IS Supply Current per Amplifier(2)
Input Characteristics
RIN
CIN
CMIR
CMRR
Input Resistance
Input Capacitance
Input Common Mode Voltage
Range
Common Mode Rejection Ratio(2)
Output Characteristics
Conditions
G=+1
VO=1.0V Step
VO=1.0V Step
VO=3V Step, G=-1
VO=1VPP, 10kHz
VO=1VPP, 10kHz
VO=1VPP, 10kHz
DC
DC
DC, VCM=OV to 2.2V
VO Output Voltage Swing(2)
RL=10kΩ to VS/2
RL=1kΩ to VS/2
ISC Short-Circuit Output Current
VS Power Supply Operating Range
Note:
2. 100% tested at TA=25°C.
Min. Typ. Max. Units
4 MHz
2.5 MHz
4 MHz
300 ns
5%
3 V/µs
-66 dBc
-67 dBc
0.1 %
26 nV/√Hz
-6 0 +6 mV
2.1 µV/°C
5 pA
50 73
dB
98 dB
200 300 µA
10
1.4
-0.3 to
2.6
50 65
GΩ
pF
V
dB
0.03
0.01 to
2.69
2.65
0.05 to
2.55
+34/-12
2.5 to
5.5
V
mA
V
© 2008 Fairchild Semiconductor Corporation
FAN4931 • Rev. 1.0.0
4
www.fairchildsemi.com
4페이지 Typical Performance Characteristic
VS=+2.7, G=2, RL=10kΩ to VS/2, RF=5kΩ; unless otherwise noted.
www.DataSheet4U.com
Figure 12. 2nd and 3rd Harmonic Distortion
Figure 13. 2nd Harmonic Distortion vs. VO
Figure 14. 3rd Harmonic Distortion vs. VO
Figure 15. CMRR VS=5V
Figure 16. PSRR VS=5V
Figure 17. Output Swing vs. Load
Figure 18. Pulse Response vs. Common-Mode
Voltage
© 2008 Fairchild Semiconductor Corporation
FAN4931 • Rev. 1.0.0
7
Figure 19. Input Voltage Noise
www.fairchildsemi.com
7페이지 | |||
구 성 | 총 11 페이지수 | ||
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FAN4931 | Ultra-Low Cost - Rail To Rail I/O for CMOS Amplifier | Fairchild Semiconductor |
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