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SM72501

www.ti.com

SNIS157C – JANUARY 2011 – REVISED APRIL 2013

SM72501 SolarMagic Precision, CMOS Input, RRIO, Wide Supply Range Amplifier

Check for Samples: SM72501

1

FEATURES

DESCRIPTION

The SM72501 is a low offset voltage, rail-to-rail input

2

•

Renewable Energy Grade

and output precision amplifier with a CMOS input

Unless Otherwise noted, Typical values at

stage

and

a

wide

supply

voltage

range.

The

SM72501 is ideal for sensor interface and other

•

Input Offset Voltage ±200 µV (max)

instrumentation applications.

•

Input Bias Current ±200 fA

The low offset voltage of less than ±200 µV along

with the low input bias current of less than ±1 pA

•

Input Voltage Noise 9 nV/

√Hz

makes the SM72501 ideal for precision applications.

•

CMRR 130 dB

The SM72501 is built utilizing VIP50 technology,

•

Open Loop Gain 130 dB

which allows the combination of a CMOS input stage

•

Temperature Range

−40°C to 125°C

and a 12V common mode and supply voltage range.

This makes the SM72501 a great choice in many

•

Unity Gain Bandwidth 2.5 MHz

applications where conventional CMOS parts cannot

•

Supply Current (SM72501) 715 µA

operate under the desired voltage conditions.

•

Supply Voltage Range 2.7V to 12V

The SM72501 has a rail-to-rail input stage that

•

Rail-to-rail Input and Output

significantly reduces the CMRR glitch commonly

associated with rail-to-rail input amplifiers. This is

APPLICATIONS

achieved by trimming both sides of the complimentary

input stage, thereby reducing the difference between

•

High Impedance Sensor Interface

the NMOS and PMOS offsets. The output of the

•

Battery Powered Instrumentation

SM72501 swings within 40 mV of either rail to

•

High Gain Amplifiers

maximize the signal dynamic range in applications

requiring low supply voltage.

•

DAC Buffer

•

Instrumentation Amplifier

The SM72501 is offered in the space saving 5-Pin

SOT-23. This small package is an ideal solution for

•

Active Filters

area constrained PC boards and portable electronics.

Typical Application

Figure 1. Precision Current Source

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2011–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.