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PDF LMP7704 Data sheet ( Hoja de datos )
| Número de pieza | LMP7704 | |
| Descripción | (LMP7702 / LMP7704) Wide Supply Range Amplifiers | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LMP7704 (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
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www.DataSheet4U.com
October 2006
LMP7701/LMP7702/LMP7704
Precision, CMOS Input, RRIO, Wide Supply Range
Amplifiers
General Description
The LMP7701/LMP7702/LMP7704 are single, dual, and
quad low offset voltage, rail-to-rail input and output precision
amplifiers each with CMOS input stage and wide supply
voltage range. The LMP7701/LMP7702/LMP7704 are part of
the LMP™ precision amplifier family and are ideal for sensor
interface and other instrumentation applications.
The guaranteed low offset voltage of less than ±200 µV
along with the guaranteed low input bias current of less than
±1 pA make the LMP7701 ideal for precision applications.
The LMP7701/LMP7702/LMP7704 are built utilizing VIP50
technology, which allows the combination of a CMOS input
stage and a 12V common mode and supply voltage range.
This makes the LMP7701/LMP7702/LMP7704 great choices
in many applications where conventional CMOS parts can-
not operate under the desired voltage conditions.
The LMP7701/LMP7702/LMP7704 have a rail-to-rail input
stage that significantly reduces the CMRR glitch commonly
associated with rail-to-rail input amplifiers. This is achieved
by trimming both sides of the complimentary input stage,
thereby reducing the difference between the NMOS and
PMOS offsets. The output of the LMP7701/LMP7702/
LMP7704 swings within 40 mV of either rail to maximize the
signal dynamic range in applications requiring low supply
voltage.
The LMP7701 is offered in the space saving 5-Pin SOT23
package, the LMP7702 is offered in the 8-Pin MSOP, and the
quad LMP7704 is offered in the 14-Pin TSSOP package.
These small packages are ideal solutions for area con-
strained PC boards and portable electronics.
Features
Unless otherwise noted, typical values at VS = 5V
n Input offset voltage (LMP7701)
±200 µV (max)
n Input offset voltage (LMP7702/LMP7704) ±220 µV (max)
n Input bias current
±200 fA
n Input voltage noise
9 nV/
n CMRR
130 dB
n Open loop gain
130 dB
n Temperature range
−40˚C to 125˚C
n Unity gain bandwidth
2.5 MHz
n Supply current (LMP7701)
715 µA
n Supply current (LMP7702)
1.5 mA
n Supply current (LMP7704)
2.9 mA
n Supply voltage range
2.7V to 12V
n Rail-to-rail input and output
Applications
n High impedance sensor interface
n Battery powered instrumentation
n High gain amplifiers
n DAC buffer
n Instrumentation amplifier
n Active filters
Typical Application
Precision Current Source
LMP™ is a trademark of National Semiconductor Corporation.
© 2006 National Semiconductor Corporation DS201273
20127305
www.national.com
1 page  
5V Electrical Characteristics (Note 4) (Continued)
Unless otherwise specified, all limits are guaranteed for TA = 25˚C, V+ = 5V, V− = 0V, VCM = V+/2, and RL > 10 kΩ to V+/2.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Min Typ Max
(Note 6) (Note 5) (Note 6)
Units
IS Supply Current
LMP7701
0.715
1.0
1.2
LMP7702
1.5 1.9
mA
2.2
LMP7704
2.9 3.7
4.6
SR Slew Rate (Note 10)
AV = +1, VO = 4 VPP
10% to 90%
1.0
V/µs
GBW Gain Bandwidth Product
2.5 MHz
THD+N
en
in
Total Harmonic Distortion + Noise
Input-Referred Voltage Noise
Input-Referred Current Noise
f = 1 kHz, AV = 1, RL = 10 kΩ
f = 1 kHz
f = 100 kHz
0.02
9
1
%
nV/
fA/
±5V Electrical Characteristics (Note 4)
Unless otherwise specified, all limits are guaranteed for TA = 25˚C, V+ = 5V, V− = −5V, VCM = 0V, and RL > 10 kΩ to 0V.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
VOS Input Offset Voltage
TCVOS
IB
Input Offset Voltage Drift
Input Bias Current
IOS
CMRR
Input Offset Current
Common Mode Rejection Ratio
PSRR Power Supply Rejection Ratio
Conditions
LMP7701
LMP7702/LMP7704
(Note 7)
(Notes 7, 8)
−40˚C ≤ TA ≤ 85˚C
(Notes 7, 8)
−40˚C ≤ TA ≤ 125˚C
−5V ≤ VCM ≤ 5V
LMP7701
−5V ≤ VCM ≤ 5V
LMP7702/LMP7704
2.7V ≤ V+ ≤ 12V, VO = 0V
Min
(Note 6)
92
88
90
86
86
82
Typ
(Note 5)
±37
±37
±1
±0.2
±0.2
40
138
138
98
Max
(Note 6)
±200
±500
±220
±520
±5
1
±50
1
±400
Units
µV
µV/˚C
pA
fA
dB
dB
CMVR
Input Common-Mode Voltage
Range
CMRR ≥ 80 dB
CMRR ≥ 78 dB
−5.2
−5.2
5.2
V
5.2
AVOL
Large Signal Voltage Gain
RL = 2 kΩ (LMP7701)
VO = −4.7V to 4.7V
RL = 2 kΩ (LMP7702/LMP7704)
VO = −4.7V to 4.7V
RL = 10 kΩ (LMP7701)
VO = −4.8V to 4.8V
RL = 10 kΩ (LMP7702/LMP7704)
VO = −4.8V to 4.8V
100
98
100
94
100
98
100
97
121
121
134
134
dB
5 www.national.com
5 Page 
Typical Performance Characteristics Unless otherwise noted: TA = 25˚C, VCM = VS/2, RL > 10 kΩ.
(Continued)
PSRR vs. Frequency
Supply Current vs. Supply Voltage (Per Channel)
20127345
Sinking Current vs. Supply Voltage
20127311
Sourcing Current vs. Supply Voltage
20127313
Output Voltage vs. Output Current
20127312
Slew Rate vs. Supply Voltage
20127316
11
20127317
www.national.com
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet LMP7704.PDF ] | |
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