LMP7718MAE/NOPB National Semiconductor, LMP7718MAE/NOPB Datasheet

IC OP AMP PREC DUAL 88MHZ 8-SOIC

LMP7718MAE/NOPB

Manufacturer Part Number
LMP7718MAE/NOPB
Description
IC OP AMP PREC DUAL 88MHZ 8-SOIC
Manufacturer
National Semiconductor
Series
LMP®, PowerWise®r
Datasheet

Specifications of LMP7718MAE/NOPB

Amplifier Type
General Purpose
Number Of Circuits
2
Output Type
Rail-to-Rail
Slew Rate
35 V/µs
Gain Bandwidth Product
88MHz
Current - Input Bias
0.1pA
Voltage - Input Offset
10µV
Current - Supply
1.3mA
Current - Output / Channel
60mA
Voltage - Supply, Single/dual (±)
1.8 V ~ 5.5 V, ±0.9 V ~ 2.75 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
-3db Bandwidth
-
Other names
LMP7718MAE
© 2010 National Semiconductor Corporation
88 MHz, Precision, Low Noise, 1.8V CMOS Input,
Decompensated Operational Amplifier
General Description
The LMP7717 (single) and the LMP7718 (dual) low noise,
CMOS input operational amplifiers offer a low input voltage
noise density of 5.8 nV/
(LMP7717) of quiescent current. The LMP7717/LMP7718 are
stable at a gain of 10 and have a gain bandwidth (GBW)
product of 88 MHz. The LMP7717/LMP7718 have a supply
voltage range of 1.8V to 5.5V and can operate from a single
supply. The LMP7717/LMP7718 each feature a rail-to-rail
output stage. Both amplifiers are part of the LMP
amplifier family and are ideal for a variety of instrumentation
applications.
The LMP7717 family provides optimal performance in low
voltage and low noise systems. A CMOS input stage, with
typical input bias currents in the range of a few femto-Am-
peres, and an input common mode voltage range, which
includes ground, make the LMP7717/LMP7718 ideal for low
power sensor applications where high speeds are needed.
The LMP7717/LMP7718 are manufactured using National’s
advanced VIP50 process. The LMP7717 is offered in either a
5-Pin SOT-23 or an 8-Pin SOIC package. The LMP7718 is
offered in either the 8-Pin SOIC or the 8-Pin MSOP.
Typical Application
LMP
®
is a registered trademark of National Semiconductor Corporation.
Photodiode Transimpedance Amplifier
while consuming only 1.15 mA
300108
LMP7717/LMP7718
30010869
®
precision
Features
(Typical 5V supply, unless otherwise noted)
Applications
Input offset voltage
Input referred voltage noise
Input bias current
Gain bandwidth product
Supply voltage range
Supply current per channel
— LMP7717
— LMP7718
Rail-to-Rail output swing
— @ 10 kΩ load
— @ 2 kΩ load
Guaranteed 2.5V and 5.0V performance
Total harmonic distortion
Temperature range
ADC interface
Photodiode amplifiers
Active filters and buffers
Low noise signal processing
Medical instrumentation
Sensor interface applications
Input Referred Voltage Noise vs. Frequency
0.04% @1 kHz, 600Ω
−40°C to 125°C
25 mV from rail
45 mV from rail
±150 µV (max)
www.national.com
July 28, 2010
30010839
1.8V to 5.5V
5.8 nV/
1.15 mA
1.30 mA
88 MHz
100 fA
Hz

Related parts for LMP7718MAE/NOPB

LMP7718MAE/NOPB Summary of contents

Page 1

... SOT- 8-Pin SOIC package. The LMP7718 is offered in either the 8-Pin SOIC or the 8-Pin MSOP. Typical Application Photodiode Transimpedance Amplifier LMP ® registered trademark of National Semiconductor Corporation. © 2010 National Semiconductor Corporation LMP7717/LMP7718 Features (Typical 5V supply, unless otherwise noted) ■ Input offset voltage ■ ...

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 THD+N Total Harmonic Distortion + Noise 5V Electrical ...

Page 4

Symbol Parameter V Output Voltage Swing High OUT Output Voltage Swing Low I Output Short Circuit Current OUT I Supply Current per Amplifier S SR Slew Rate GBW Gain Bandwidth e Input Referred Voltage Noise Density n i Input Referred ...

Page 5

Connection Diagrams 5-Pin SOT-23 (LMP7717) 30010801 Top View Ordering Information Package Part Number LMP7717MF 5-Pin SOT-23 LMP7717MFE LMP7717MFX LMP7717MA LMP7717MAE LMP7717MAX 8-Pin SOIC LMP7718MA LMP7718MAE LMP7718MAX LMP7718MM 8-Pin MSOP LMP7718MME LMP7718MMX 8-Pin SOIC (LMP7717) 30010885 Top View Package Marking Transport ...

Page 6

Typical Performance Characteristics /2. + − TCV Distribution (LMP7717) OS TCV Distribution (LMP7717) OS Supply Current vs. Supply Voltage (LMP7717) www.national.com Unless otherwise specified, T Offset Voltage Distribution ...

Page 7

Offset Voltage vs 30010851 Offset Voltage vs. Temperature Input Bias Current Over Temperature 30010862 Offset Voltage vs. V Slew Rate vs. Supply Voltage 30010812 Input Bias Current vs 30010811 30010852 CM 30010887 www.national.com ...

Page 8

Offset Voltage vs. Supply Voltage Sinking Current vs. Supply Voltage Sinking Current vs. Output Voltage www.national.com Sourcing Current vs. Supply Voltage 30010827 Sourcing Current vs. Output Voltage 30010819 Positive Output Swing vs. Supply Voltage 30010854 8 30010820 30010850 30010817 ...

Page 9

Negative Output Swing vs. Supply Voltage Negative Output Swing vs. Supply Voltage Negative Output Swing vs. Supply Voltage Positive Output Swing vs. Supply Voltage 30010815 Positive Output Swing vs. Supply Voltage 30010814 Input Referred Voltage Noise vs. Frequency 30010813 9 ...

Page 10

Time Domain Voltage Noise THD+N vs. Frequency THD+N vs. Peak-to-Peak Output Voltage (V www.national.com Overshoot and Undershoot vs. C 30010881 THD+N vs. Frequency 30010826 ) THD+N vs. Peak-to-Peak Output Voltage (V OUT 30010874 10 LOAD 30010830 30010804 ) OUT 30010875 ...

Page 11

Open Loop Gain and Phase Crosstalk Rejection Large Signal Transient Response 30010855 Closed Loop Output Impedance vs. Frequency 30010806 Small Signal Transient Response, A 30010880 = +10 Small Signal Transient Response 30010832 = +10 V 30010853 ...

Page 12

Large Signal Transient Response, A CMRR vs. Frequency www.national.com = +10 PSRR vs. Frequency V 30010863 Input Common Mode Capacitance vs. V 30010856 12 30010870 CM 30010876 ...

Page 13

Application Information ADVANTAGES OF THE LMP7717/LMP7718 Wide Bandwidth at Low Supply Current The LMP7717/LMP7718 are high performance op amps that provide a GBW of 88 MHz with a gain of 10 while drawing a low supply current of 1.15 mA. ...

Page 14

What is a Decompensated Op Amp? The differences between the unity gain stable op amp and the decompensated op amp are shown in assumes an ideal two pole system. The dominant pole of the decompensated op amp ...

Page 15

The circuit gain for Figure 4 at low frequencies is −R F, the feedback factor is not equal to the circuit gain. The feedback factor is derived from feedback theory and is the same for both inverting and non-inverting configurations. ...

Page 16

FIGURE 6. First Try at Compensation, Gain = −1 FIGURE 7. C Increased to 2.2 nF, Gain = −1 Some over-compensation appears to be needed for the de- sired overshoot characteristics. Instead of intersecting the A curve at 18 dB, ...

Page 17

FIGURE 10. LMP7715 Response For large signal response the rise and fall times are dominat the slew rate of the op amps. Even though both parts are quite similar the LMP7717 will give rise and fall times about ...

Page 18

Figure the buffer configuration, for these parts. FIGURE 13. LMP7717 with Lead-Lag Compensation for Non-Inverting Configuration Figure 13 is the result of using Equation 5 and additional ex- perimentation in the lab. ...

Page 19

FIGURE 16. Transimpedance Amplifier Figure 16 is the complete schematic for a transimpedance amplifier. Only the supply bypass capacitors are not shown. C represents the photodiode capacitance which is given on D its datasheet the input common mode ...

Page 20

After a bit of algebraic manipulation the above equation re- duces to: In the above equation the only unknown is C solve this equation the fourth power excel spread sheet with this equation can be used and ...

Page 21

Physical Dimensions inches (millimeters) unless otherwise noted 5-Pin SOT23 NS Package Number MF05A 8-Pin SOIC NS Package Number M08A 21 www.national.com ...

Page 22

MSOP NS Package Number MUA08A 22 ...

Page 23

23 www.national.com ...

Page 24

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com 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 ...

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