Datasheet > LMP2021MA/NOPB

LMP2021MA/NOPB

更新时间： 2024-11-07 11:11:59

品牌	Logo	应用领域
德州仪器 - TI		放大器
页数	文件大小	规格书
41页	1693K
描述
零漂移、低噪声、抗 EMI 单通道放大器 \| D \| 8 \| -40 to 125

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LMP2021, LMP2022

SNOSAY9G –SEPTEMBER 2008–REVISED FEBRUARY 2016

LMP202x Zero-Drift, Low-Noise, EMI-Hardened Amplifiers

1 Features

3 Description

The LMP2021 and LMP2022 are single and dual

precision operational amplifiers offering ultra low input

offset voltage, near zero input offset voltage drift, very

low input voltage noise and very high open loop gain.

They are part of the LMP™ precision family and are

ideal for instrumentation and sensor interfaces.

(Typical Values, T_A= 25°C, V_S= 5 V)

•

Input Offset Voltage (Typical) −0.4 µV

Input Offset Voltage (Max) ±5 µV

Input Offset Voltage Drift (Typical) –0.004 µV/°C

Input Offset Voltage Drift (Max) ±0.02 µV/°C

Input Voltage Noise, A_V= 1000 11 nV/√Hz

Open Loop Gain 160 dB

The LMP202x has only 0.004 µV/°C of input offset

voltage drift, and 0.4 µV of input offset voltage. These

attributes provide great precision in high accuracy

applications.

CMRR 139 dB

PSRR 130 dB

The proprietary continuous auto zero correction

circuitry ensures impressive CMRR and PSRR,

removes the 1/f noise component, and eliminates the

need for calibration in many circuits.

Supply Voltage Range 2.2 V to 5.5 V

Supply Current (per Amplifier) 1.1 mA

Input Bias Current ±25 pA

With only 260 nV_PP(0.1 Hz to 10 Hz) of input voltage

noise and no 1/f noise component, the LMP202x are

suitable for low frequency applications such as

industrial precision weigh scales. The extremely high

open loop gain of 160 dB drastically reduces gain

error in high gain applications. With ultra precision

DC specifications and very low noise, the LMP202x

are ideal for position sensors, bridge sensors,

pressure sensors, medical equipment and other high

accuracy applications with very low error budgets.

GBW 5 MHz

Slew Rate 2.6 V/µs

Operating Temperature Range −40°C to 125°C

5-Pin SOT-23, 8-Pin VSSOP and 8-Pin SOIC

Packages

2 Applications

•

Precision Instrumentation Amplifiers

Battery Powered Instrumentation

Thermocouple Amplifiers

The LMP2021 is offered in 5-Pin SOT-23 and 8-Pin

SOIC packages. The LMP2022 is offered in 8-Pin

VSSOP and 8-Pin SOIC packages.

Bridge Amplifiers

Device Information⁽¹⁾

PART NUMBER

PACKAGE

BODY SIZE (NOM)

4.90 mm x 3.91 mm

2.90 mm x 1.60 mm

4.90 mm x 3.91 mm

3.00 mm x 3.00 mm

SOIC (8)

LMP2021

SOT-23 (5)

SOIC (8)

LMP2022

VSSOP (8)

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Bridge Amplifier

V_A= 5V

200W

1 kW

1/2

LMP2022

EMI

5.1 kW

0.1%

0.1 mF

470 pF

180W

LMP2021

ADC161S626

280W

5.1 kW

0.1%

0.1 mF

1/2

= 1/2 V

LMP2022

1 kW

200W

The LMP202x support systems with up to 24 bits of accuracy.

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...41

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LMP2021MA/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LMP2021MAX/NOPB	TI	类似代替	零漂移、低噪声、抗 EMI 单通道放大器 \| D \| 8 \| -40 to 125

与LMP2021MA/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LMP2021MAX	NSC	获取价格	Zero Drift, Low Noise, EMI Hardened Amplifiers
LMP2021MAX/NOPB	TI	获取价格	零漂移、低噪声、抗 EMI 单通道放大器 \| D \| 8 \| -40 to 125
LMP2021MF	NSC	获取价格	Zero Drift, Low Noise, EMI Hardened Amplifiers
LMP2021MF/NOPB	NSC	获取价格	IC OP-AMP, 10 uV OFFSET-MAX, 5 MHz BAND WIDTH, PDSO5, GREEN, SOT-23, 5 PIN, Operational Am
LMP2021MF/NOPB	TI	获取价格	零漂移、低噪声、抗 EMI 单通道放大器 \| DBV \| 5 \| -40 to 125
LMP2021MFE	NSC	获取价格	Zero Drift, Low Noise, EMI Hardened Amplifiers
LMP2021MFE/NOPB	TI	获取价格	零漂移、低噪声、抗 EMI 单通道放大器 \| DBV \| 5 \| -40 to 125
LMP2021MFX	NSC	获取价格	Zero Drift, Low Noise, EMI Hardened Amplifiers
LMP2021MFX/NOPB	TI	获取价格	零漂移、低噪声、抗 EMI 单通道放大器 \| DBV \| 5 \| -40 to 125
LMP2022	NSC	获取价格	Zero Drift, Low Noise, EMI Hardened Amplifiers

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