LMV921 Datasheet, PDF (1/23 Pages) National Semiconductor (TI) – 1.8V, 1MHz, Low Power Operational Amplifiers with Rail-To-Rail Input and Output

OBSOLETE
LMV921, LMV922, LMV924
www.ti.com
SNOS436H – AUGUST 2000 – REVISED APRIL 2013
LMV921/LMV922/LMV924 Single, Dual and Quad 1.8V, 1MHz, Low Power Operational
Amplifiers with Rail-To-Rail Input and Output
Check for Samples: LMV921, LMV922, LMV924
FEATURES
1
•2 (Typical 1.8V Supply Values; Unless Otherwise
Noted)
• Ensured 1.8V, 2.7V and 5V Specifications
• Rail-to-Rail Input & Output Swing
• w/600Ω Load 100 mV from Rail
• w/2kΩ Load 30 mV from Rail
• V_CM 300mV Beyond Rails
• Supply Current 145µA/amplifier
• Gain Bandwidth Product 1MHz
• LMV921 Maximum V_OS 6mV
• 90dB Gain w/600Ω Load
• LMV921 Available in Ultra Tiny, SC70-5
Package
• LMV922 Available in VSSOP-8 Package
• LMV924 Available in TSSOP-14 Package
APPLICATIONS
• Cordless/Cellular Phones
• Laptops
• PDAs
• PCMCIA
• Portable/Battery-Powered Electronic
Equipment
• Supply Current Monitoring
• Battery Monitoring
DESCRIPTION
The LMV921 Single/LMV922 Dual/LMV924 Quad are
ensured to operate from +1.8V to +5.0V supply
voltages and have rail-to-rail input and output. This
rail-to-rail operation enables the user to make full use
of the entire supply voltage range. The input common
mode voltage range extends 300mV beyond the
supplies and the output can swing rail-to-rail
unloaded and within 100mV from the rail with 600Ω
load at 1.8V supply. The LMV921/LMV922/LMV924
are optimized to work at 1.8V which make them ideal
for portable two-cell battery-powered systems and
single cell Li-Ion systems.
The LMV921/LMV922/LMV924 exhibit excellent
speed-power ratio, achieving 1MHz gain bandwidth
product at 1.8V supply voltage with very low supply
current. The LMV921/LMV922/LMV924 are capable
of driving 600Ω load and up to 1000pF capacitive
load
with
minimal
ringing.
The
LMV921/LMV922/LMV924's high DC gain of 100dB
makes them suitable for low frequency applications.
The LMV921 (Single) is offered in a space saving
SC70–5 and SOT-23–5 packages. The SC70–5
package is only 2.0X2.1X1.0mm. These small
packages are ideal solutions for area constrained PC
boards and portable electronics such as cellphones
and PDAs.
spacer
Supply Current vs.
Supply Voltage (LMV921)
Output Voltage Swing vs.
Supply Voltage
Gain and Phase Margin
vs. Frequency
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2000–2013, Texas Instruments Incorporated