LMV641 Datasheet, PDF (1/27 Pages) National Semiconductor (TI) – 10 MHz, 12V, Low Power Amplifier

LMV641
www.ti.com
SNOSAW3C – SEPTEMBER 2007 – REVISED FEBRUARY 2013
LMV641 10 MHz, 12V, Low Power Amplifier
Check for Samples: LMV641
FEATURES
1
•2 Guaranteed 2.7V, and ±5V Performance
• Low Power Supply Current 138 µA
• High Unity Gain Bandwidth 10 MHz
• Max Input Offset Voltage 500 µV
• CMRR 120 dB
• PSRR 105 dB
• Input Referred Voltage Noise 14 nV/√Hz
• 1/f Corner Frequency 4 Hz
• Output Swing with 2 kΩ Load 40 mV from Rail
• Total Harmonic Distortion 0.002% @ 1kHz, 2kΩ
• Temperature Range −40°C to 125°C
APPLICATIONS
• Portable equipment
• Battery powered systems
• Sensors and instrumentation
DESCRIPTION
The LMV641 is a low power, wide bandwidth
operational amplifier with an extended power supply
voltage range of 2.7V to 12V.
It features 10 MHz of gain bandwidth product with
unity gain stability on a typical supply current of 138
μA. Other key specifications are a PSRR of 105 dB,
CMRR of 120 dB, V_OS of 500 μV, input referred
voltage noise of 14 nV/ , and a THD of 0.002%.
This amplifier has a rail-to-rail output stage, and a
common mode input voltage which includes the
negative supply.
The LMV641 operates over a temperature range of
−40°C to +125°C and is offered in the board space
saving 5-Pin SC70, SOT-23, and 8-Pin SOIC
packages.
20
UNITS TESTED = 12,000
18
16
14
12
V⁺ = +5V
V^- = -5V
V_CM = 0V
T_A = 25°C
10
8
6
4
2
0
-400 -300 -200 -100 0 100 200 300 400
OFFSET VOLTAGE (PV)
Figure 1. Offset Voltage Distribution
180
150
120
PHASE
90
60 ^GAIN
180
V⁺ = +6V
V^- = -6V ¹⁵⁰
R_L = 10 k: ₁₂₀
C_L = 20 pF
90
60
30
30
0
0
-30
-30
-60
100 1k
-60
10k 100k 1M 10M 100M
FREQUENCY (Hz)
Figure 2. Open Loop Gain and Phase vs.
Frequency
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
1
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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 © 2007–2013, Texas Instruments Incorporated