LMV951 Datasheet, PDF (1/29 Pages) National Semiconductor (TI) – 1V, 2.7 MHz, Rail-to-Rail Input and Output Amplifier with Shutdown Option

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LMV951
SNOSAI3D – OCTOBER 2006 – REVISED SEPTEMBER 2015
LMV951 1-V, 2.7-MHz, Zero Crossover Rail-to-Rail Input
and Output Amplifier With Shutdown
1 Features
•1 (Typical 1-V Supply, Unless Otherwise Noted)
• Ensured 1-V, 380-µA Single-Supply Operation
• Shutdown to 50-nA Supply Current
• Wide 2.7-MHz Bandwidth
• Rail-to-Rail Input With Zero Crossover
• No Input I_BIAS Current Reversal Over V_CM Range
• 1000-pF Output Drive Capability
• High-Output Drive Capability
– Sink Current: 35 mA
– Source Current: 45 mA
• Rail-to-Rail Buffered Output
– At 600-Ω Load, 32 mV from Either Rail
– At 2-kΩ Load, 12 mV from Either Rail
• Temperature Range −40°C to 125°C
2 Applications
• Battery Operated Systems
• Battery Monitoring
• Supply Current Monitoring
3 Description
The LMV951 amplifier is capable of operating at
supply voltages from 0.9 V to 3 V with specified
specs at 1-V and 1.8-V single supply.
The input common-mode range extends to both
power supply rails without the offset transition zone
and input bias current reversal inherent to most rail-
to-rail input amplifiers.
Contrary to a conventional rail-to-rail output amplifier,
the LMV951 has a buffered output stage, providing
an open-loop gain which is relatively unaffected by
resistive output loading. At 1-V supply voltage, the
LMV951 is able to source and sink in excess of
35 mA and offers a gain bandwidth product of
2.7 MHz.
In shutdown mode, the LMV951 consumes less than
50 nA of supply current.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMV951
SOT (6)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
space
space
Simplified Schematic
ABOVE V⁺
GENERATOR
Offset Voltage Change vs Common Mode
1.4
5
SHUTDOWN
V^{+ 6}
IN- ⁴
INTERNAL
GAIN STAGE
1
OUTPUT
1.2
125°C
1
25°C
0.8
3
IN+
BELOW V^-
GENERATOR
2 _V-
0.6
-40°C
V⁺ = 3V
0.4
0 0.5 1 1.5 2 2.5 3
V_CM (V)
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.