lmv301-mdc National Semiconductor Corporation, lmv301-mdc Datasheet

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lmv301-mdc

Manufacturer Part Number
lmv301-mdc
Description
Low Input Bias Current, 1.8v Op Amp W/ Rail-to-rail Output
Manufacturer
National Semiconductor Corporation
Datasheet
© 2001 National Semiconductor Corporation
LMV301
Low Input Bias Current, 1.8V Op Amp w/ Rail-to-Rail
Output
General Description
The LMV301 CMOS operational amplifier is ideal for single
supply, low voltage operation with a guaranteed operating
voltage range from 1.8V to 5V. The low input bias current of
less than 0.182pA typical, eliminates input voltage errors that
may originate from small input signals. This makes the
LMV301 ideal for electrometer applications requiring low
input leakage such as sensitive photodetection transimped-
ance amplifiers and sensor amplifiers. The LMV301 also
features a rail-to-rail output voltage swing in addition to a
input common-mode range that includes ground. The
LMV301 will drive a 600
capacitive load in unity gain follower applications. The low
supply voltage also makes the LMV301 well suited for
portable two-cell battery systems and single cell Li-Ion
systems.
The LMV301 exhibits excellent speed-power ratio, achieving
1MHz at unity gain with low supply current. The high DC gain
of 100dB makes it ideal for other low frequency applications.
The LMV301 is offered in a space saving SC-70 package,
which is only 2.0X2.1X1.0mm. It is also similar to the
LMV321 except the LMV301 has a CMOS input.
Connection Diagram
Ordering Information
5-Pin SC70-5
Package
Top View
SC70-5
resistive load and up to 1000pF
Part Number
LMV301MGX
LMV301MG
DS200193
20019301
Package Marking
A48
Key Specifications
(Typical values unless otherwise specified)
n Input bias current
n Gain bandwidth product
n Supply voltage
n Supply current
n Input referred voltage noise
n DC Gain (600
n Output voltage range
n Input common-mode voltage range
Applications
n Thermocouple amplifiers
n Photo current amplifiers
n Transducer amplifiers
n Sample and hold circuits
n Low frequency active filters
Applications Circuit
1k Units Tape and Reel
3k Units Tape and Reel
Low Leakage Sample and Hold
Transport Media
@
load)
1.8V
@
1.8V
@
1kHz
−0.3V to V
NSC Drawing
MAA05A
0.024 to 1.77V
www.national.com
March 2001
20019307
40nV/
1.8V to 5V
0.182pA
+
150µA
100dB
- 1.2V
1MHz

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lmv301-mdc Summary of contents

Page 1

... The LMV301 exhibits excellent speed-power ratio, achieving 1MHz at unity gain with low supply current. The high DC gain of 100dB makes it ideal for other low frequency applications. The LMV301 is offered in a space saving SC-70 package, which is only 2.0X2.1X1.0mm also similar to the LMV321 except the LMV301 has a CMOS input. ...

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 7) Machine Model Human Body Model Differential Input Voltage + − Supply Voltage ( ...

Page 3

AC Electrical Characteristics − 1. Symbol Parameter SR Slew Rate GBW Gain Bandwidth Product m Phase Margin G Gain Margin m e Input-Referred Voltage n ...

Page 4

AC Electrical Characteristics − = 2.7V 0V 1.0V 1.35V and Symbol Parameter SR Slew Rate GBW Gain Bandwidth Product m Phase Margin G Gain Margin m e Input-Referred Voltage n ...

Page 5

AC Electrical Characteristics − 2.5V and Symbol Parameter SR Slew Rate GBW Gain Bandwidth Product m Phase Margin G Gain Margin m e Input-Referred Voltage ...

Page 6

Typical Performance Characteristics Unless otherwise specified 25˚C. A Supply Current vs. Supply Voltage Output Negative Swing vs. Supply Voltage Output Positive Swing vs. Supply Voltage www.national.com Output Negative Swing vs. Supply Voltage 20019359 Output Positive Swing vs. Supply ...

Page 7

Typical Performance Characteristics V vs Sourcing Current vs. Output Voltage Sourcing Current vs. Output Voltage Unless otherwise specified, T 20019366 Sinking Current vs. Output Voltage 20019368 Sinking Current vs. Output Voltage 20019370 7 = 25˚C. (Continued) A ...

Page 8

Typical Performance Characteristics Sourcing Current vs. Output Voltage I Current vs. V BIAS Open Loop Frequency Response www.national.com Unless otherwise specified, T Sinking Current vs. Output Voltage 20019373 Open Loop Frequency Response CM 20019364 Open Loop Frequency Response 20019354 8 ...

Page 9

Typical Performance Characteristics Open Loop Frequency Response Open Loop Frequency Response Noise vs. Frequency Response Unless otherwise specified, T Open Loop Frequency Response 20019356 Noise vs. Frequency Response 20019358 Noise vs. Frequency Response 20019375 9 = 25˚C. (Continued) A 20019357 ...

Page 10

Typical Performance Characteristics Small Signal Response Small Signal Response Small Signal Response www.national.com Unless otherwise specified, T Large Signal Response 20019345 Large Signal Response 20019347 Large Signal Response 20019349 10 = 25˚C. (Continued) A 20019346 20019348 20019350 ...

Page 11

Typical Performance Characteristics Small Signal Response Unless otherwise specified, T Large Signal Response 20019352 11 = 25˚C. (Continued) A 20019351 www.national.com ...

Page 12

... Application Hints Compensating Input Capacitance The high input resistance of the LMV301 op amp allows the use of large feedback and source resistor values without losing gain accuracy due to loading. However, the circuit will be especially sensitive to its layout when these large value resistors are used. ...

Page 13

... It is generally recognized that any circuit which must operate with less than 100pA of leakage current requires special layout of the PC board. When one wishes to take advantage of the low bias current of the LMV301, typically less than 0.182pA essential to have an excellent layout. Fortunately, the techniques for obtaining low leakages are quite simple ...

Page 14

Application Hints (Continued) www.national.com (a) Inverting Amplifier (b) Non-Inverting Amplifier (c) Follower (d) Howland Current Pump FIGURE 5. Guard Ring Connections 14 20019317 20019318 20019319 20019320 ...

Page 15

Application Hints (Continued) The designer should be aware that when it is inappropriate to lay out a PC board for the sake of just a few circuits, there is another technique which is even better than a guard ring on ...

Page 16

Typical Single-Supply Applications (V = 5.0 VDC) + Low-Leakage Sample-and-Hold Sine-Wave Oscillator Oscillator frequency is determined by R1, R2, C1, and C2: fosc = 1/2 RC, where and C2. This circuit, ...

Page 17

SC70-5 Tape Dimensions SC70-5 Tape Format Tape Format Tape Section Leader (Start End) Carrier Trailer (Hub End) # Cavities Cavity Status 0 (min) Empty 75 (min) Empty 3000 Filled 250 Filled 125 (min) Empty 0 (min) Empty 17 20019396 Cover ...

Page 18

SC70-5 Reel Dimensions 8mm 7.00 0.059 330.00 1.50 Tape Size A B www.national.com 0.512 0.795 2.165 0.331+ 0.059/−0.000 13.00 20.20 55.00 8.40 + 1.50/− 0. 20019397 0.567 W1 + 0.078/−0.039 14. 2.00/−1. ...

Page 19

... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...

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