LMV791MK/NOPB National Semiconductor, LMV791MK/NOPB Datasheet

IC OP AMP CMOS 1.8V TSOT23-6

LMV791MK/NOPB

Manufacturer Part Number
LMV791MK/NOPB
Description
IC OP AMP CMOS 1.8V TSOT23-6
Manufacturer
National Semiconductor
Series
PowerWise®r
Datasheet

Specifications of LMV791MK/NOPB

Amplifier Type
General Purpose
Number Of Circuits
1
Output Type
Rail-to-Rail
Slew Rate
11.5 V/µs
Gain Bandwidth Product
17MHz
Current - Input Bias
0.1pA
Voltage - Input Offset
100µV
Current - Supply
1.15mA
Current - Output / Channel
60mA
Voltage - Supply, Single/dual (±)
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TSOT-23-6, TSOT-6
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
-3db Bandwidth
-
Other names
LMV791MK
LMV791MKNOPB
LMV791MKNOPBTR
LMV791MKNOPBTR
LMV791MKTR
© 2008 National Semiconductor Corporation
LMV791/LMV792
17 MHz, Low Noise, CMOS Input, 1.8V Operational
Amplifiers with Shutdown
General Description
The LMV791 (Single) and the LMV792 (Dual) low noise,
CMOS input operational amplifiers offer a low input voltage
noise density of 5.8 nV/
(LMV791) of quiescent current. The LMV791 and LMV792 are
unity gain stable op amps and have gain bandwidth of 17
MHz. The LMV791/ LMV792 have a supply voltage range of
1.8V to 5.5V and can operate from a single supply. The
LMV791/LMV792 each feature a rail-to-rail output stage ca-
pable of driving a 600Ω load and sourcing as much as 60 mA
of current.
The LMV791 family provides optimal performance in low volt-
age and low noise systems. A CMOS input stage, with typical
input bias currents in the range of a few femtoAmperes, and
an input common mode voltage range which includes ground
make the LMV791 and the LMV792 ideal for low power sensor
applications. The LMV791 family has a built-in enable feature
which can be used to optimize power dissipation in low power
applications.
The LMV791/LMV792 are manufactured using National’s ad-
vanced VIP50 process and are offered in a 6-pin TSOT23 and
a 10-pin MSOP package respectively.
Typical Application
Photodiode Transimpedance Amplifier
while consuming only 1.15 mA
201168
20116869
Features
(Typical 5V supply, unless otherwise noted)
Applications
Input referred voltage noise
Input bias current
Unity gain bandwidth
Supply current per channel enable mode
— LMV791
— LMV792
Supply current per channel in shutdown mode
Rail-to-rail output swing
— @ 10 kΩ load
— @ 2 kΩ load
Guaranteed 2.5V and 5.0V performance
Total harmonic distortion
Temperature range
Photodiode amplifiers
Active filters and buffers
Low noise signal processing
Medical Instrumentation
Sensor interface applications
Input Referred Voltage Noise vs. Frequency
0.01% @1 kHz, 600Ω
−40°C to 125°C
25 mV from rail
45 mV from rail
June 23, 2008
www.national.com
20116839
5.8 nV/
1.15 mA
1.30 mA
17 MHz
0.02 µA
100 fA
Hz

Related parts for LMV791MK/NOPB

LMV791MK/NOPB Summary of contents

Page 1

... The LMV791/LMV792 are manufactured using National’s ad- vanced VIP50 process and are offered in a 6-pin TSOT23 and a 10-pin MSOP package respectively. Typical Application Photodiode Transimpedance Amplifier © 2008 National Semiconductor Corporation Features (Typical 5V supply, unless otherwise noted) ■ Input referred voltage noise ■ ...

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   Charge-Device Model V Differential IN Supply Voltage (V + – V − ) Input/Output Pin Voltage ...

Page 3

Symbol Parameter I Output Current OUT I Supply Current per Amplifier S SR Slew Rate GBW Gain Bandwidth e Input Referred Voltage Noise Density n i Input Referred Current Noise Density n t Turn-on Time on t Turn-off Time off ...

Page 4

A Open Loop Voltage Gain VOL V Output Voltage Swing High OUT Output Voltage Swing Low I Output Current OUT I Supply Current per Amplifier S SR Slew Rate GBW Gain Bandwidth e Input Referred Voltage Noise Density n i ...

Page 5

Connection Diagrams 6-Pin TSOT23 Top View Ordering Information Package Part Number LMV791MK 6-Pin TSOT23 LMV791MKX LMV792MM 10-Pin MSOP LMV792MMX 20116801 Package Marking Transport Media 1k Units Tape and Reel AS1A 3k Units Tape and Reel 1k Units Tape and Reel ...

Page 6

Typical Performance Characteristics = 5V / Supply Current vs. Supply Voltage (LMV791) Supply Current vs. Supply Voltage in Shutdown Mode V vs www.national.com Unless otherwise specified, T ...

Page 7

V vs. Supply Voltage OS Supply Current vs. Enable Pin Voltage (LMV791) Supply Current vs. Enable Pin Voltage (LMV792) Slew Rate vs. Supply Voltage 20116812 Supply Current vs. Enable Pin Voltage(LMV791) 20116808 Supply Current vs. Enable Pin Voltage (LMV792) 20116882 ...

Page 8

Input Bias Current vs. V Sourcing Current vs. Supply Voltage Sourcing Current vs. Output Voltage www.national.com Input Bias Current vs 20116862 Sinking Current vs. Supply Voltage 20116820 Sinking Current vs. Output Voltage 20116850 8 CM 20116887 20116819 20116854 ...

Page 9

Positive Output Swing vs. Supply Voltage Positive Output Swing vs. Supply Voltage Positive Output Swing vs. Supply Voltage Negative Output Swing vs. Supply Voltage 20116817 Negative Output Swing vs. Supply Voltage 20116816 Negative Output Swing vs. Supply Voltage 20116818 9 ...

Page 10

Input Referred Voltage Noise vs. Frequency Overshoot and Undershoot vs. C THD+N vs. Peak-to-Peak Output Voltage (V www.national.com Time Domain Voltage Noise 20116839 THD+N vs. Peak-to-Peak Output Voltage (V LOAD 20116830 ) THD+N vs. Frequency OUT 20116804 10 20116831 ) ...

Page 11

THD+N vs. Frequency Open Loop Gain and Phase with Resistive Load Crosstalk Rejection Open Loop Gain and Phase with Capacitive Load 20116875 Closed Loop Output Impedance vs. Frequency 20116873 Small Signal Transient Response, A 20116880 11 20116841 20116832 = +1 ...

Page 12

Large Signal Transient Response, A Large Signal Transient Response, A Phase Margin vs. Capacitive Load (Stability) www.national.com = +1 Small Signal Transient Response 20116837 = +1 Phase Margin vs. Capacitive Load (Stability) V 20116834 Positive PSRR vs. Frequency ...

Page 13

Negative PSRR vs. Frequency Input Common Mode Capacitance vs. V CMRR vs. Frequency 20116828 CM 20116876 13 20116856 www.national.com ...

Page 14

Application Information ADVANTAGES OF THE LMV791/LMV792 Wide Bandwidth at Low Supply Current The LMV791 and LMV792 are high performance op amps that provide a unity gain bandwidth of 17 MHz while drawing a low supply current of 1.15 mA. This ...

Page 15

FIGURE 2. Inverting Amplifier For simplicity, the op amp is modelled as an ideal integrator with a unity gain frequency Hence, its transfer function 0 (or gain) in the frequency domain equations in the ...

Page 16

AUDIO PREAMPLIFIER WITH BANDPASS FILTERING With low input referred voltage noise, low supply voltage and low supply current, and a low harmonic distortion, the LMV791 family is ideal for audio applications. Its wide unity gain bandwidth allows it to provide ...

Page 17

FIGURE 8. Photodiode Transimpedance Amplifier As mentioned earlier, the following parameters are used to design a transimpedance amplifier: the amplifier gain-band- width product the amplifier input capacitance photodiode capacitance the transimpedance gain re- D ...

Page 18

TABLE 1. Transimpedance 470000 50 pF 1.5 pF 470000 100 pF 2.0 pF 470000 200 pF 3.0 pF 47000 50 pF 4.5 pF 47000 100 pF 6.0 pF 47000 200 pF 9.0 pF FIGURE 11. Frequency ...

Page 19

SENSOR INTERFACES The low input bias current and low input referred noise of the LMV791 and LMV792 make them ideal for sensor interfaces. These circuits are required to sense voltages of the order of a few μV, and currents amounting ...

Page 20

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 6-Pin TSOT23 NS Package Number MK06A 10-Pin MSOP NS package Number MUB10A 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 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 ...

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