KM7101 Datasheet, PDF (1/9 Pages) Fairchild Semiconductor – Ultra-Low Cost, 139A, +2.7V, 4.9MHz Rail-to-Rail I/O Amplifier

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KM7101
Ultra-Low Cost, 139µA, +2.7V, 4.9MHz Rail-to-Rail I/O Amplifier
Features
I 136µA supply current
I 4.9MHz bandwidth
I Output swings to within 20mV of either rail
I Input voltage range exceeds the rail by >250mV
I 5.3V/µs slew rate
I 35mA short circuit output current
I 24nV/√Hz input voltage noise
I Directly replaces LMC7101 in single supply
applications
I Available in SOT23-5 package
Applications
I Portable/battery-powered applications
I PCMCIA, USB
I Mobile communications, cellular phones, pagers
I Notebooks and PDA’s
I Sensor Interface
I A/D buffer
I Active filters
I Signal conditioning
I Portable test instruments
KM7101 Package
SOT23-5
Out 1
5 -V_s
+V_s 2
+In 3
4 -In
General Description
The KM7101 is an ultra-low cost, low power, voltage
feedback amplifier that is pin compatible to the
LMC7101. If a standard pinout is required, use the
KM4170. The KM7101 uses only 136µA of supply
current and offers no crossover distortion. The input
common mode voltage range exceeds the negative
and positive rails.
The KM7101 offers high bipolar performance at a
low CMOS price. The KM7101 offers superior
dynamic performance with a 4.9MHz small signal
bandwidth and 5.3V/µs slew rate. The combination
of low power, high bandwidth, and rail-to-rail per-
formance make the KM7101 well suited for battery-
powered communication/computing systems.
Large Signal Frequency Response
V_s = 5V
V_o = 1V_pp
V_o = 4V_pp
V_o = 2V_pp
0.01
0.1
1
10
Frequency (MHz)
Output Swing vs. Load
1.35
RL = 10kΩ
RL = 1kΩ
RL = 75Ω
0
RL = 100Ω
RL = 200Ω
RL = 75/100Ω
-1.35
-2.0
0
2.0
Input Voltage (0.4V/div)
REV. 1B March 2001