LPV521

更新时间： 2024-11-23 05:42:43

品牌	Logo	应用领域
美国国家半导体 - NSC		运算放大器
页数	文件大小	规格书
22页	1144K
描述
Nanopower, 1.8V, RRIO, CMOS Input, Operational Amplifier

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LPV521 数据手册

August 24, 2009

LPV521

Nanopower, 1.8V, RRIO, CMOS Input, Operational

Amplifier

General Description

Features

The LPV521 is a single nanopower 552 nW amplifier de-

signed for ultra long life battery applications. The operating

voltage range of 1.6V to 5.5V coupled with typically 351 nA of

supply current make it well suited for RFID readers and re-

mote sensor nanopower applications. The device has input

common mode voltage 0.1V over the rails, guaranteed

TCV_OSand voltage swing to the rail output performance. The

LPV521 has a carefully designed CMOS input stage that out-

performs competitors with typically 40 fA I_BIAScurrents. This

low input current significantly reduces I_BIASand I_OSerrors in-

troduced in megohm resistance, high impedance photodiode,

and charge sense situations. The LPV521 is a member of the

PowerWise^®family and has an exceptional power-to-perfor-

mance ratio.

(For V_S= 5V, Typical unless otherwise noted)

Supply current at V_CM= 0.3V

Operating voltage range

Low TCV_OS

V_OS

Input bias current

PSRR

CMRR

Open loop gain

Gain bandwidth product

Slew rate

Input voltage noise at f = 100 Hz

Temperature range

400 nA (max)

1.6V to 5.5V

■

3.5 µV/°C (max)

1 mV (max)

40 fA

■

109 dB

102 dB

132 dB

6.2 kHz

2.4 V/ms

255 nV/√Hz

−40°C to 125°C

The wide input common mode voltage range, guaranteed 1

mV V_OSand 3.5 µV/°C TCV_OSenables accurate and stable

measurement for both high side and low side current sensing.

Applications

Wireless remote sensors

■

EMI protection was designed into the device to reduce sen-

sitivity to unwanted RF signals from cell phones or other RFID

readers.

Powerline monitoring

Power meters

Battery powered industrial sensors

The LPV521 is offered in the 5-pin SC-70 package.

Micropower oxygen sensor and gas sensor

Active RFID readers

Zigbee based sensors for HVAC control

Sensor network powered by energy scavenging

Typical Application

30054578

30054577

300545

www.national.com

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与LPV521相关器件

型号	品牌	获取价格	描述	数据表
LPV521MG	NSC	获取价格	Nanopower, 1.8V, RRIO, CMOS Input, Operational Amplifier
LPV521MG/NOPB	TI	获取价格	Single, 5.5-V, 6.2-kHz, ultra low quiescent current (350-nA), 1.6-V min supply, RRIO op am
LPV521MGE	NSC	获取价格	Nanopower, 1.8V, RRIO, CMOS Input, Operational Amplifier
LPV521MGE/NOPB	TI	获取价格	Single, 5.5-V, 6.2-kHz, ultra low quiescent current (350-nA), 1.6-V min supply, RRIO op am
LPV521MGX	NSC	获取价格	Nanopower, 1.8V, RRIO, CMOS Input, Operational Amplifier
LPV521MGX/NOPB	TI	获取价格	Single, 5.5-V, 6.2-kHz, ultra low quiescent current (350-nA), 1.6-V min supply, RRIO op am
LPV531	NSC	获取价格	Programmable Micropower CMOS Input, Rail-to-Rail Output Operational Amplifier
LPV531	TI	获取价格	Programmable Micropower CMOS Input, Rail-to-Rail Output Operational Amplifier
LPV531_15	TI	获取价格	Programmable Micropower CMOS Input, Rail-to-Rail Output Operational Amplifier
LPV531MK	NSC	获取价格	Programmable Micropower CMOS Input, Rail-to-Rail Output Operational Amplifier

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