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KM4170 Datasheet(PDF) 1 Page - Fairchild Semiconductor

Part No. KM4170
Description  Low Cost, 2.7V & 5V, Rail-to-Rail I/O Amplifiers
Download  16 Pages
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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KM4170 Datasheet(HTML) 1 Page - Fairchild Semiconductor

 
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Features at 2.7V
• 136
µA supply current per amplifier
• 4.9MHz bandwidth
• Output swings to within 20mV of either rail
• Input voltage range exceeds the rail by >250mV
• 5.3V/
µs slew rate
• 16mA output current
• 21nV/
√Hz input voltage noise
• KM4170:
directly replaces OPA340, OPA343, and TLV2461 in
single supply applications and available in SC70-5 and
SOT23-5 package options
• KM4270:
directly replaces MAX4126, OPA2340, LMV822 and
TLV2462 in single supply applications and available in
SOIC-8 and MSOP-8 package options
• KM4470:
directly replaces MAX4129, OPA4340, LMV824 and
TLV2464 in single supply applications and available in
TSSOP-14 package option
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
Description
The KM4170 (single), KM4270 (dual), and KM4470 (quad)
are ultra-low cost, low power, voltage feedback amplifiers.
At 5V, the KM4X70 family uses only 160
µA of supply current
per amplifier and are designed to operate from a supply range
of 2.5V to 5.5V (±1.25 to ±2.75). The input voltage range
exceeds the negative and positive rails.
The KM4X70 family of amplifiers offer high bipolar
performance at a low CMOS prices. They offer superior
dynamic performance with 4.9MHz small signal bandwidths
and 5.3V/
µs slew rates. The combination of low power, high
bandwidth, and rail-to-rail performance make the KM4X70
amplifiers well suited for battery-powered communication/
computing systems.
KM4170, KM4270, KM4470
Low Cost, +2.7V & +5V, Rail-to-Rail I/O Amplifiers
www.fairchildsemi.com
REV. 5 December 2002
Large Signal Frequency Response
Frequency (MHz)
0.01
0.1
1
10
Vo = 4Vpp
Vs = 5V
Vo = 1Vpp
Vo = 2Vpp
Output Swing vs. Load
Input Voltage (0.4V/div)
-2.0
0
2.0
-1.35
0
1.35
RL = 10kΩ
RL = 1kΩ
RL = 75/100Ω
RL = 200Ω
RL = 100Ω
RL = 75Ω


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