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PDF LMV301 Data sheet ( Hoja de datos )
| Número de pieza | LMV301 | |
| Descripción | Low Input Bias Current / 1.8V Op Amp w/ Rail-to-Rail Output | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LMV301 (archivo pdf) en la parte inferior de esta página. Total 19 Páginas | ||
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March 2001
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 600Ω resistive load and up to 1000pF
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.
Key Specifications
(Typical values unless otherwise specified)
n Input bias current
0.182pA
n Gain bandwidth product
1MHz
n Supply voltage @ 1.8V
1.8V to 5V
n Supply current
150µA
n Input referred voltage noise @ 1kHz
40nV/
n DC Gain (600Ω load)
100dB
n Output voltage range @ 1.8V
0.024 to 1.77V
n Input common-mode voltage range −0.3V to V+ - 1.2V
Applications
n Thermocouple amplifiers
n Photo current amplifiers
n Transducer amplifiers
n Sample and hold circuits
n Low frequency active filters
Connection Diagram
SC70-5
Applications Circuit
Low Leakage Sample and Hold
20019307
Top View
20019301
Ordering Information
Package
5-Pin SC70-5
Part Number
LMV301MG
LMV301MGX
Package Marking
A48
Transport Media
1k Units Tape and Reel
3k Units Tape and Reel
NSC Drawing
MAA05A
© 2001 National Semiconductor Corporation DS200193
www.national.com
1 page  
5V AC Electrical Characteristics Unless otherwise specified, all limits guaranteed for TJ = 25˚C. V+ =
5V, V− = 0V, VCM = V+/2, VO = 2.5V and RL > 1MΩ. Boldface limits apply at the temperature extremes.
Symbol
SR
GBW
φm
Gm
en
THD
Parameter
Slew Rate
Gain Bandwidth Product
Phase Margin
Gain Margin
Input-Referred Voltage
Noise
Total Harmonic Distortion
Condition
(Note 6)
f = 1kHz, VCM = 1V
f = 100kHz
f = 1kHz, AV = +1
RL = 600Ω, VO = 1VPP
Typ
(Note 4)
0.66
1
70
15
40
30
0.069
Units
V/µs
MHz
Deg
dB
nV/
%
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 conditions, see the Electrical Characteristics.
Note 2: Applies to both single supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the maximum allowed
junction temperature of 150˚C. Output currents in excess of 45mA over long term may adversely affect reliability.
Note 3: The maximum power dissipation is a function of TJ(MAX), θJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD =
(TJ(MAX) – TA)θJA. All numbers apply for packages soldered directly into a PC board.
Note 4: Typical value represent the most likely parametric norm.
Note 5: All limits are guaranteed by testing or statistical analysis.
Note 6: V+ = 5V. Connected as voltage follower with 5V step input. Number specified is the slower of the positive and negative slew rates.
Note 7: Human body model, 1.5kΩ in series with 100pF. Machine model, 200Ω in series with 100pF.
Simplified Schematic
20019302
5 www.national.com
5 Page 
Typical Performance Characteristics Unless otherwise specified, TA = 25˚C. (Continued)
Small Signal Response
Large Signal Response
20019352
20019351
11 www.national.com
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet LMV301.PDF ] | |
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