KM4212 Datasheet, PDF (1/10 Pages) Fairchild Semiconductor – Dual, 70A, Low Cost, +2.7V & +5V, 7.3MHz Rail-to-Rail Amp

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KM4212
Dual, 70µA, Low Cost, +2.7V & +5V, 7.3MHz Rail-to-Rail Amp
Features
I 70µA supply current
I 7.3MHz bandwidth
I Fully specified at +2.7V and +5V supplies
I Output voltage range: 0.04V to 4.96V; Vs = +5
I Input voltage range: -0.3V to +3.8V; Vs = +5
I 9V/µs slew rate
I ±4mA linear output current
I ±9mA short circuit output current
I 29nV/√Hz input voltage noise
I Competes with low power CMOS amps
I Small package options (SOIC-8 and MSOP-8)
Applications
I Portable/battery-powered applications
I A/D buffer
I Active filters
I Signal conditioning
I Portable test instruments
KM4212 Packages
SOIC-8
Out1 1
-In1 2 -
+In1 3 ⁺
-V_s 4
8 +V_s
7 Out2
6 -In2
5 +In2
MSOP-8
Out1 1
-In1 2 -
+In1 3 ⁺
-V_s 4
8 +V_s
7 Out2
6 -In2
5 +In2
General Description
The KM4212 is an ultra-low power, low cost, voltage
feedback amplifier. The KM4212 uses only 70µA of
supply current and is designed to operate on +2.7V,
+5V, or ±2.5V supplies. The input voltage range
extends 300mV below the negative rail and 1.2V
below the positive rail.
The KM4212 offers high bipolar performance at a low
CMOS price. The KM4212 offers superior dynamic
performance with a 7.3MHz small signal bandwidth
and 9V/µs slew rate. The combination of low power,
high bandwidth, and rail-to-rail performance make
the KM4212 well suited for battery-powered commu-
nication/computing systems.
The KM4112 single amplifier is also available.
Non-Inverting Freq. Response V_s = +5V
G=2
R_f = 10kΩ
0.01
0.1
1
10
Frequency (MHz)
REV. 1 August 2001