km4112 Fairchild Semiconductor, km4112 Datasheet

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km4112

Manufacturer Part Number
km4112
Description
70a, Low Cost, 2.7v & 5v, 7.3mhz Rail-to-rail Amplifier
Manufacturer
Fairchild Semiconductor
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
km4112IT5TR3
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Company:
Part Number:
km4112IT5TR3
Quantity:
33 000
Out
KM4112
70µA, Low Cost, +2.7V & +5V, 7.3MHz Rail-to-Rail Amplifier
Features
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Applications
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KM4112 Package
-V
+In
s
70µA supply current
7.3MHz bandwidth
Fully specified at +2.7V and +5V supplies
Output voltage range: 0.04V to 4.96V; V s = +5
Input voltage range: -0.3V to +3.8V; V s = +5
9V/µs slew rate
±4mA linear output current
±9mA short circuit output current
29nV/√Hz input voltage noise
Competes with low power CMOS amps
Small package option (SOT23-5)
Portable/battery-powered applications
A/D buffer
Active filters
Signal conditioning
Portable test instruments
1
2
3
SOT23-5
-
5
4
+V
-In
s
General Description
The KM4112 is an ultra-low power, low cost, voltage
feedback amplifier. The KM4112 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 KM4112 offers high bipolar performance at a low
CMOS price. The KM4112 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 KM4112 well suited for battery-powered commu-
nication/computing systems.
0.01
Non-Inverting Freq. Response V
R
f
G = 2
= 10kΩ
Frequency (MHz)
0.1
1
www.fairchildsemi.com
s
= +5V
REV. 2 July 2001
10

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km4112 Summary of contents

Page 1

... The input voltage range extends 300mV below the negative rail and 1.2V below the positive rail. The KM4112 offers high bipolar performance at a low CMOS price. The KM4112 offers superior dynamic performance with a 7.3MHz small signal bandwidth and 9V/µs slew rate. The combination of low power, ...

Page 2

... DATA SHEET KM4112 Electrical Characteristics PARAMETERS Case Temperature Frequency Domain Response -3dB bandwidth full power bandwidth gain bandwidth product Time Domain Response rise and fall time settling time to 0.1% overshoot slew rate Distortion and Noise Response 2nd harmonic distortion 3rd harmonic distortion ...

Page 3

... KM4112 KM4112 Electrical Characteristics PARAMETERS Case Temperature Frequency Domain Response -3dB bandwidth full power bandwidth gain bandwidth product Time Domain Response rise and fall time settling time to 0.1% overshoot slew rate Distortion and Noise Response 2nd harmonic distortion 3rd harmonic distortion THD ...

Page 4

... DATA SHEET KM4112 Performance Characteristics Non-Inverting Frequency Response 0.01 0.1 Frequency (MHz) Non-Inverting Freq. Response 0.01 0.1 Frequency (MHz) Large Signal Frequency Response V o 0.01 0.1 Frequency (MHz) Input Voltage Noise 140 120 100 0.0001 0.001 0.01 Frequency (MHz +5V ...

Page 5

... KM4112 KM4112 Performance Characteristics 2nd & 3rd Harmonic Distortion -30 -40 3rd -50 -60 -70 -80 -90 10 100 Frequency (kHz) CMRR 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 1 10 100 1k Frequency (Hz) Large Signal Pulse Response V Time (1µs/div) REV. 2 July 2001 (V = +5V 10kΩ ...

Page 6

... DATA SHEET General Description The KM4112 is a single supply, general purpose, voltage- feedback amplifier fabricated on a complementary bipolar process. The KM4112 offers 7.3MHz unity gain bandwidth, 9V/µs slew rate, and only 70µA supply current. It features a rail-to-rail output stage and is unity gain stable. ...

Page 7

... The KEB002 evaluation board is built for dual supply operation. Follow these steps to use the board in a single supply application: 1. Short -V to ground s 2. Use C3 and C4, if the -V directly connected to the ground plane. Products KM4112IT5 Figure 5: Evaluation Board Schematic DATA SHEET pin of the KM4112 is not s 7 ...

Page 8

... DATA SHEET KM4112 Evaluation Board Layout Figure 6a: KEB002 (top side) KM4112 Package Dimensions b SOT23 α NOTE: 1. All dimensions are in millimeters. 2 Foot length measured reference to flat foot surface parallel to DATUM ’A’ and lead surface. ...

Page 9

... Package KM4112 KM4112IT5 SOT23-5 Partial Reel KM4112 KM4112IT5TR3 SOT23-5 Temperature range for all parts: -40°C to +85°C DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICES TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS ...

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