IC OPAMP EMI LP CMOS SGL SC70-5

LMV831MGE/NOPB

Manufacturer Part NumberLMV831MGE/NOPB
DescriptionIC OPAMP EMI LP CMOS SGL SC70-5
ManufacturerNational Semiconductor
SeriesPowerWise®
LMV831MGE/NOPB datasheet
 

Specifications of LMV831MGE/NOPB

Amplifier TypeGeneral PurposeNumber Of Circuits1
Slew Rate2 V/µsGain Bandwidth Product3.3MHz
Current - Input Bias0.1pAVoltage - Input Offset250µV
Current - Supply250µACurrent - Output / Channel66mA
Voltage - Supply, Single/dual (±)2.7 V ~ 5.5 VOperating Temperature-40°C ~ 125°C
Mounting TypeSurface MountPackage / CaseSC-70-5, SC-88A, SOT-323-5, SOT-353, 5-TSSOP
Lead Free Status / RoHS StatusLead free / RoHS CompliantOutput Type-
-3db Bandwidth-Other namesLMV831MGETR
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LMV831 Single/ LMV832 Dual/ LMV834 Quad
3.3 MHz Low Power CMOS, EMI Hardened Operational
Amplifiers
General Description
National’s LMV831, LMV832, and LMV834 are CMOS input,
low power op amp IC's, providing a low input bias current, a
wide temperature range of −40°C to 125°C and exceptional
performance making them robust general purpose parts. Ad-
ditionally, the LMV831/LMV832/LMV834 are EMI hardened
to minimize any interference so they are ideal for EMI sensi-
tive applications.
The unity gain stable LMV831/LMV832/LMV834 feature
3.3 MHz of bandwidth while consuming only 0.24 mA of cur-
rent per channel. These parts also maintain stability for ca-
pacitive loads as large as 200 pF. The LMV831/LMV832/
LMV834 provide superior performance and economy in terms
of power and space usage.
This family of parts has a maximum input offset voltage of
1 mV, a rail-to-rail output stage and an input common-mode
voltage range that includes ground. Over an operating range
from 2.7V to 5.5V the LMV831/LMV832/LMV834 provide a
PSRR of 93 dB, and a CMRR of 91 dB. The LMV831 is offered
in the space saving 5-Pin SC70 package, the LMV832 in the
8-Pin MSOP and the LMV834 is offered in the 14-Pin TSSOP
package.
Typical Application
© 2008 National Semiconductor Corporation
Features
Unless otherwise noted, typical values at T
V
+
= 3.3V
Supply voltage
Supply current (per channel)
Input offset voltage
Input bias current
GBW
EMIRR at 1.8 GHz
Input noise voltage at 1 kHz
Slew rate
Output voltage swing
Output current drive
Operating ambient temperature range
Applications
Photodiode preamp
Piezoelectric sensors
Portable/battery-powered electronic equipment
Filters/buffers
PDAs/phone accessories
EMI Hardened Sensor Application
300241
October 6, 2008
= 25°C,
A
2.7V to 5.5V
240 µA
1 mV max
0.1 pA
3.3 MHz
120 dB
12 nV/
Hz
2 V/µs
Rail-to-Rail
30 mA
−40°C to 125°C
30024101
www.national.com

LMV831MGE/NOPB Summary of contents

  • Page 1

    ... PSRR of 93 dB, and a CMRR of 91 dB. The LMV831 is offered in the space saving 5-Pin SC70 package, the LMV832 in the 8-Pin MSOP and the LMV834 is offered in the 14-Pin TSSOP package. Typical Application © 2008 National Semiconductor Corporation Features Unless otherwise noted, typical values 3.3V ■ ...

  • 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 Charge-Device Model Machine Model V Differential IN Supply Voltage ( – V − Voltage at Input/Output Pins 3.3V Electrical Characteristics Unless otherwise specified, all limits are guaranteed for at T Boldface limits apply at the temperature extremes ...

  • Page 3

    Symbol Parameter V Output Voltage Swing High OUT Output Voltage Swing Low I Output Short Circuit Current OUT I Supply Current S SR Slew Rate (Note 7) GBW Gain Bandwidth Product Φ Phase Margin m e Input Referred Voltage Noise ...

  • Page 4

    Symbol Parameter PSRR Power Supply Rejection Ratio (Note 9) EMIRR EMI Rejection Ratio, IN+ and IN- (Note 8) CMVR Input Common-Mode Voltage Range CMRR A Large Signal Voltage Gain VOL (Note 11) V Output Voltage Swing High OUT Output Voltage ...

  • Page 5

    Symbol Parameter i Input Referred Current Noise n R Closed Loop Output Impedance OUT C Common-mode Input Capacitance IN Differential-mode Input Capacitance THD+N Total Harmonic Distortion + Noise Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the ...

  • Page 6

    Typical Performance Characteristics specified vs. Supply Voltage www.national.com 25° 3.3V 30024110 30024112 OUT 30024114 kΩ ...

  • Page 7

    Input Bias Current vs 85°C CM Supply Current vs. Supply Voltage Single LMV831 Supply Current vs. Supply Voltage Quad LMV834 Input Bias Current vs. V 30024116 Supply Current vs. Supply Voltage Dual LMV832 30024118 Supply Current vs. Temperature ...

  • Page 8

    Supply Current vs. Temperature Dual LMV832 Sinking Current vs. Supply Voltage Output Swing High vs. Supply Voltage R www.national.com Supply Current vs. Temperature Quad LMV834 30024122 Sourcing Current vs. Supply Voltage 30024124 = 2 kΩ Output Swing High vs. Supply ...

  • Page 9

    Output Swing Low vs. Supply Voltage R Output Voltage Swing vs. Load Current at V Open Loop Frequency Response vs. Temperature = 2 kΩ Output Swing Low vs. Supply Voltage R L 30024128 + = 3.3V Output Voltage Swing vs. ...

  • Page 10

    Phase Margin vs. Capacitive Load CMRR vs. Frequency Large Signal Step Response with Gain = 1 www.national.com PSRR vs. Frequency 30024134 Channel Separation vs. Frequency 30024136 Large Signal Step Response with Gain = 10 30024138 10 30024135 30024137 30024139 ...

  • Page 11

    Small Signal Step Response with Gain = 1 Slew Rate vs. Supply Voltage THD+N vs. Frequency Small Signal Step Response with Gain = 10 30024140 Input Voltage Noise vs. Frequency 30024142 THD+N vs. Amplitude 30024145 11 30024141 30024144 30024146 www.national.com ...

  • Page 12

    R vs. Frequency OUT EMIRR IN+ vs. Power at 900 MHz EMIRR IN+ vs. Power at 2400 MHz www.national.com EMIRR IN+ vs. Power at 400 MHz 30024147 EMIRR IN+ vs. Power at 1800 MHz 30024149 EMIRR IN+ vs. Frequency 30024151 ...

  • Page 13

    Application Information INTRODUCTION The LMV831, LMV832 and LMV834 are operational ampli- fiers with excellent specifications, such as low offset, low noise and a rail-to-rail output. These specifications make the LMV831, LMV832 and LMV834 great choices for medical and instrumentation applications ...

  • Page 14

    OUTPUT CHARACTERISTICS As already mentioned the output is rail-to-rail. When loading the output with a 10 kΩ resistor the maximum swing of the output is typically 6 mV from the positive and negative rail. The output of the LMV831/LMV832/LMV834 can ...

  • Page 15

    The circuit diagram is shown in Figure 5. The PCB trace from RF to the IN+ pin should be a 50Ω stripline in order to match IN the RF impedance of the cabling and the RF generator. On the PCB ...

  • Page 16

    PRESSURE SENSOR APPLICATION The LMV831/LMV832/LMV834 can be used for pressure sen- sor applications. Because of their low power the LMV831/ LMV832/LMV834 are ideal for portable applications, such as blood pressure measurement devices, or portable barome- ters. This example describes a ...

  • Page 17

    Physical Dimensions inches (millimeters) unless otherwise noted 5-Pin SC-70 NS Package Number MAA05A 8-Pin MSOP NS Package Number MUA08A 17 www.national.com ...

  • Page 18

    TSSOP NS Package Number MTC14 18 ...

  • Page 19

    Notes 19 www.national.com ...

  • Page 20

    ... 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 Conditioners www.national.com/timing Data Converters www.national.com/adc Displays www.national.com/displays Ethernet www.national.com/ethernet Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www ...