LMP2234AMT/NOPB National Semiconductor, LMP2234AMT/NOPB Datasheet

IC AMP PREC QUAD LO PWR 14TSSOP

LMP2234AMT/NOPB

Manufacturer Part Number
LMP2234AMT/NOPB
Description
IC AMP PREC QUAD LO PWR 14TSSOP
Manufacturer
National Semiconductor
Series
LMP®, PowerWise®r
Datasheet

Specifications of LMP2234AMT/NOPB

Amplifier Type
General Purpose
Number Of Circuits
4
Output Type
Rail-to-Rail
Slew Rate
0.058 V/µs
Gain Bandwidth Product
130kHz
Current - Input Bias
0.02pA
Voltage - Input Offset
10µV
Current - Supply
36µA
Current - Output / Channel
30mA
Voltage - Supply, Single/dual (±)
1.6 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
14-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
-3db Bandwidth
-
Other names
*LMP2234AMT
*LMP2234AMT/NOPB
LMP2234AMT

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LMP2234AMT/NOPB
Manufacturer:
NS
Quantity:
3 062
© 2008 National Semiconductor Corporation
LMP2234 Quad
Micropower, 1.6V, Precision, Operational Amplifier with
CMOS Input
General Description
The LMP2234 is a quad micropower precision amplifier de-
signed for battery powered applications. The 1.6 to 5.5V
operating supply voltage range and quiescent power con-
sumption of only 50 μW extend the battery life in portable
systems. The LMP2234 is part of the LMP
family. The high impedance CMOS input makes it ideal for
instrumentation and other sensor interface applications.
The LMP2234 has a maximum offset voltage of 150 μV and
0.3 μV/°C offset drift along with low bias current of only
±20 fA. These precise specifications make the LMP2234 a
great choice for maintaining system accuracy and long term
stability.
The LMP2234 has a rail-to-rail output that swings 15 mV from
the supply voltage, which increases system dynamic range.
The common mode input voltage range extends 200 mV be-
low the negative supply, thus the LMP2234 is ideal for ground
sensing in single supply applications.
The LMP2234 is offered in 14-Pin SOIC and TSSOP pack-
ages.
Typical Application
LMP
®
is a registered trademark of National Semiconductor Corporation.
®
202034
precision amplifier
Strain Gauge Bridge Amplifier
Features
(For V
Applications
Supply current at 1.8V
Operating voltage range
Low TCV
V
Input bias current
PSRR
CMRR
Open loop gain
Gain bandwidth product
Slew rate
Input voltage noise, f = 1 kHz
Temperature range
Precision instrumentation amplifiers
Battery powered medical instrumentation
High impedance sensors
Strain gauge bridge amplifier
Thermocouple amplifiers
OS
S
= 5V, Typical unless otherwise noted)
OS
December 18, 2008
20203468
±0.75 µV/°C (max)
–40°C to 125°C
±150 µV (max)
www.national.com
1.6V to 5.5V
60 nV/
130 kHz
58 V/ms
120 dB
120 dB
±20 fA
31 µA
97 dB
Hz

Related parts for LMP2234AMT/NOPB

LMP2234AMT/NOPB Summary of contents

Page 1

... LMP2234 is ideal for ground sensing in single supply applications. The LMP2234 is offered in 14-Pin SOIC and TSSOP pack- ages. Typical Application LMP ® registered trademark of National Semiconductor Corporation. © 2008 National Semiconductor Corporation Features (For V = 5V, Typical unless otherwise noted) S ■ ...

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 Differential Input Voltage Supply Voltage ( – Voltage on Input/Output Pins Storage Temperature Range Junction Temperature(Note 3) ...

Page 3

Symbol Parameter G Gain Margin m e Input-Referred Voltage Noise Density n Input-Referred Voltage Noise i Input-Referred Current Noise Density n THD+N Total Harmonic Distortion + Noise 3.3V DC Electrical Characteristics T = 25° 3.3V 0V, ...

Page 4

Symbol Parameter i Input-Referred Current Noise Density kHz n THD+N Total Harmonic Distortion + Noise 2.5V DC Electrical Characteristics T = 25° 2.5V, V − Symbol Parameter V Input ...

Page 5

DC Electrical Characteristics T = 25° 1.8V 0V − Symbol Parameter V Input Offset Voltage OS TCV Input Offset Voltage Drift OS I Input Bias Current BIAS I Input ...

Page 6

Note 1: Absolute Maximum Ratings indicate limits beyond which damage 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 test conditions, see the Electrical ...

Page 7

Typical Performance Characteristics − S Offset Voltage Distribution Offset Voltage Distribution Offset Voltage Distribution Unless otherwise Specified: T TCV 20203407 TCV 20203406 TCV 20203405 7 = 25° 5V /2, ...

Page 8

Offset Voltage Distribution Offset Voltage vs. V Offset Voltage vs. V www.national.com 20203473 CM 20203418 CM 20203464 8 TCV Distribution OS 20203469 Offset Voltage vs 20203465 Offset Voltage vs 20203472 ...

Page 9

Offset Voltage vs. Temperature 20203471 0 Voltage Noise 20203433 0 Voltage Noise 20203432 Offset Voltage vs. Supply Voltage 0 Voltage Noise 0 Voltage Noise ...

Page 10

Input Bias Current vs. V Input Bias Current vs. V Input Bias Current vs. V www.national.com Input Bias Current vs 20203455 Input Bias Current vs 20203457 Input Bias Current vs 20203459 10 CM 20203456 ...

Page 11

Input Bias Current vs 20203461 PSRR vs. Frequency 20203466 Sinking Current vs. Supply Voltage 20203413 Input Bias Current vs. V Supply Current vs. Supply Voltage (per channel) Sourcing Current vs. Supply Voltage 11 CM 20203462 20203412 20203414 www.national.com ...

Page 12

Output Swing High vs. Supply Voltage Open Loop Frequency Response Phase Margin vs. Capacitive Load www.national.com Output Swing Low vs. Supply Voltage 20203415 Open Loop Frequency Response 20203421 Slew Rate vs. Supply Voltage 20203463 12 20203416 20203422 20203430 ...

Page 13

THD+N vs. Amplitude 20203428 Large Signal Step Response 20203424 Large Signal Step Response 20203426 THD+N vs. Frequency Small Signal Step Response Small Signal Step Response 13 20203429 20203423 20203425 www.national.com ...

Page 14

CMRR vs. Frequency www.national.com Input Voltage Noise vs. Frequency 20203467 14 20203419 ...

Page 15

... Thus the LMP2234 provides better signal fidelity and a higher signal-to-noise ratio when interfacing with high impedance sensors. National Semiconductor is heavily committed to precision amplifiers and the market segments they serve. Technical support and extensive characterization data is available for sensitive applications or applications with a constrained error budget ...

Page 16

Figure 2 shows a schematic of this input voltage noise reduc- tion circuit using the LMP2234. Typical resistor values are: = 10Ω kΩ, and kΩ FIGURE 2. Noise Reduction Circuit ...

Page 17

SINGLE SUPPLY STRAIN GAUGE BRIDGE AMPLIFIER Strain gauges are popular electrical elements used to mea- sure force or pressure. Strain gauges are subjected to an unknown force which is measured as the deflection on a pre- viously calibrated scale. Pressure ...

Page 18

PORTABLE GAS DETECTION SENSOR Gas sensors are used in many different industrial and medical applications. They generate a current which is proportional to the percentage of a particular gas sensed in an air sample. This current goes through a load ...

Page 19

Physical Dimensions inches (millimeters) unless otherwise noted 14-Pin SOIC NS Package Number M14A 14-Pin TSSOP NS Package Number MTC14 19 www.national.com ...

Page 20

... 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 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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