IC OPAMP R-R I/O L-V L-P SC70-5

LMV841MG/NOPB

Manufacturer Part NumberLMV841MG/NOPB
DescriptionIC OPAMP R-R I/O L-V L-P SC70-5
ManufacturerNational Semiconductor
LMV841MG/NOPB datasheet
 

Specifications of LMV841MG/NOPB

Amplifier TypeGeneral PurposeNumber Of Circuits1
Output TypeRail-to-RailSlew Rate2.5 V/µs
Gain Bandwidth Product4.5MHzCurrent - Input Bias0.3pA
Voltage - Input Offset50µVCurrent - Supply1.03mA
Current - Output / Channel37mAVoltage - Supply, Single/dual (±)2.7 V ~ 12 V, ±1.35 V ~ 6 V
Operating Temperature-40°C ~ 125°CMounting TypeSurface Mount
Package / CaseSC-70-5, SC-88A, SOT-323-5, SOT-353, 5-TSSOPLead Free Status / RoHS StatusLead free / RoHS Compliant
-3db Bandwidth-Other namesLMV841MG
LMV841MGTR
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CMOS Input, RRIO, Wide Supply Range Operational
Amplifiers
General Description
The LMV841/LMV842/LMV844 are low-voltage and low-pow-
er operational amplifiers that operate with supply voltages
ranging from 2.7V to 12V and have rail-to-rail input and output
capability. Their low offset voltage, low supply current, and
MOS inputs make them ideal for sensor interface and battery-
powered applications.
The single LMV841 is offered in the space-saving 5-Pin SC70
package, the dual LMV842 in the 8-Pin MSOP and 8-Pin
SOIC packages, and the quad LMV844 in the 14-Pin TSSOP
and 14-Pin SOIC packages. These small packages are ideal
solutions for area-constrained PC boards and portable elec-
tronics.
The LMV841Q, LMV842Q, and LMV844Q incorporate en-
hanced manufacturing and support processes for the auto-
motive market , including defect detection methodologies.
Reliability qualification is compliant with the requirements and
temperature grades defined in the AEC-Q100 standard.
Typical Applications
© 2009 National Semiconductor Corporation
LMV841/LMV841Q/LMV842/
LMV842Q/LMV844/LMV844Q
Features
Unless otherwise noted, typical values at T
Space saving 5-Pin SC70 package
Supply voltage range 2.7V to 12V
Guaranteed at 3.3V, 5V and ±5V
Low supply current
Unity gain bandwidth
Open loop gain
Input offset voltage
Input bias current
CMRR
Input voltage noise
Temperature range
Rail-to-Rail input
Rail-to-Rail output
The LMV841Q, LMV842Q, and LMV844Q are AEC-
Q100 grade 1 qualified and are manufactured on auto-
motive grade flow.
Applications
High impedance sensor interface
Battery powered instrumentation
High gain amplifiers
DAC buffer
Instrumentation amplifiers
Active filters
201683
October 12, 2009
= 25°C, V
+
= 5V.
A
1mA per channel
4.5MHz
133dB
500μV max
0.3pA
112dB
20nV/
Hz
−40°C to 125°C
20168301
www.national.com

LMV841MG/NOPB Summary of contents

  • Page 1

    ... Reliability qualification is compliant with the requirements and temperature grades defined in the AEC-Q100 standard. Typical Applications © 2009 National Semiconductor Corporation LMV841/LMV841Q/LMV842/ LMV842Q/LMV844/LMV844Q Features Unless otherwise noted, typical values at T ■ ...

  • Page 2

    ... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance (Note 2) Human Body Model Machine Model V Differential IN Supply Voltage (V + – V − ) Voltage at Input/Output Pins Input Current Storage Temperature Range ...

  • Page 3

    Symbol Parameter Φ Phase Margin m e Input-Referred Voltage Noise n R Open Loop Output Impedance OUT THD+N Total Harmonic Distortion + Noise C Input Capacitance IN 5V Electrical Characteristics Unless otherwise specified, all limits are guaranteed for T Boldface ...

  • Page 4

    Symbol Parameter THD+N Total Harmonic Distortion + Noise C Input Capacitance IN ±5V Electrical Characteristics Unless otherwise specified, all limits are guaranteed for T Boldface limits apply at the temperature extremes. Symbol Parameter V Input Offset Voltage OS TCV Input ...

  • Page 5

    Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test ...

  • Page 6

    Ordering Information Package Part Number LMV841MG LMV841MGX LMV841QMG 5-Pin SC70 LMV841QMGX LMV842MM LMV842MMX LMV842QMM 8-Pin MSOP LMV842QMMX LMV842MA LMV842MAX LMV842QMA 8-Pin SOIC LMV842QMAX LMV844MA LMV844MAX LMV844QMA 14-Pin SOIC LMV844QMAX LMV844MT 14-Pin TSSOP LMV844MTX * Automotive Grade (Q) product incorporates enhanced ...

  • Page 7

    Typical Performance Characteristics V vs. V Over Temperature at 3. vs. V Over Temperature at ±5. vs. Temperature 25° 10kΩ vs. V Over Temperature ...

  • Page 8

    Input Bias Current vs. V Input Bias Current vs. V Sinking Current vs. Supply Voltage www.national.com Input Bias Current vs 20168316 Supply Current per Channel vs. Supply Voltage CM 20168318 Sourcing Current vs. Supply Voltage 20168320 8 CM ...

  • Page 9

    Output Swing High vs. Supply Voltage R = 2kΩ L Output Swing Low vs. Supply Voltage R = 2kΩ L Output Voltage Swing vs. Load Current Output Swing High vs. Supply Voltage 20168322 Output Swing Low vs. Supply Voltage 20168324 ...

  • Page 10

    Open Loop Frequency Response Over Load Conditions PSRR vs. Frequency Channel Separation vs. Frequency www.national.com Phase Margin vs. C 20168328 CMRR vs. Frequency 20168330 Large Signal Step Response with Gain = 1 20168332 10 L 20168329 20168331 20168373 ...

  • Page 11

    Large Signal Step Response with Gain = 10 Small Signal Step Response with Gain = 10 Overshoot vs Small Signal Step Response with Gain = 1 20168374 Slew Rate vs Supply Voltage 20168376 Input Voltage Noise vs. Frequency ...

  • Page 12

    THD+N vs. Frequency Closed Loop Output Impedance vs. Frequency www.national.com THD+N vs. V 20168340 20168343 12 OUT 20168341 ...

  • Page 13

    Application Information INTRODUCTION The LMV841/LMV842/LMV844 are operational amplifiers with near-precision specifications: low noise, low temperature drift, low offset, and rail-to-rail input and output. Possible ap- plication areas include instrumentation, medical, test equip- ment, audio, and automotive applications. Its low supply ...

  • Page 14

    Input referred voltage noise of the op amp • Input referred current noise of the op amp • Noise sources of the resistors in the feedback network, configuring the op amp To calculate the noise voltage at the output ...

  • Page 15

    The resistor noise for the second example is: The total noise at the input of the op amp is: For the second example the input noise will, multiplied with the noise gain, give an output noise of In the first ...

  • Page 16

    HIGH-SIDE CURRENT SENSING The rail-to-rail input and the low V LMV841/LMV842/LMV844 ideal op amps for high-side cur- rent sensing applications. To measure a current, a sense resistor is placed in series with the load, as shown in Figure 6. The ...

  • Page 17

    FIGURE 8. K-Type Thermocouple Response Thermocouple Example For this example suppose the range of interest is from 0°C to 500°C, and the resolution needed is 0.5°C. The power supply for both the LMV841, LMV842, or LMV844 and the ADC is ...

  • Page 18

    Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 5-Pin SC70 NS Package Number MAA05A 8-Pin MSOP NS Package Number MUA08A 18 ...

  • Page 19

    SOIC NS Package Number M08A 14-Pin SOIC NS Package Number M14A 19 www.national.com ...

  • Page 20

    TSSOP NS Package Number MTC14 20 ...

  • Page 21

    Notes 21 www.national.com ...

  • Page 22

    ... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...