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LM4140 Datasheet(PDF) 1 Page - Texas Instruments |
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LM4140 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 23 page LM4140 www.ti.com SNVS053E – JUNE 2000 – REVISED APRIL 2013 LM4140 High Precision Low Noise Low Dropout Voltage Reference Check for Samples: LM4140 1 FEATURES DESCRIPTION 2 • High Initial Accuracy: 0.1% The LM4140 series of precision references are • Ultra Low Noise designed to combine high accuracy, low drift and • Low Temperature Coefficient: 3 ppm/°C (A noise with low power dissipation in a small package. grade) The LM4140 is the industry's first reference with • Low Voltage Operation: 1.8V output voltage options lower than the bandgap • Low Dropout Voltage: 20 mV (typ) @ 1mA voltage. • Supply Current: 230 μA (typ), ≤ 1 μA Disable The key to the advance performance of the LM4140 Mode is the use of EEPROM registers and CMOS DACs for temperature coefficient curvature correction and • Enable Pin trimming of the output voltage accuracy of the device • Output Voltage Options: 1.024V, 1.250V, during the final production testing. 2.048V, 2.500V, and 4.096V The major advantage of this method is the much • Custom Voltages from 0.5V to 4.5V higher resolution available with DACs than is • Temperature Range (0°C to 70°C) available economically with most methods utilized by other bandgap references. APPLICATIONS SUMMARY The low input and dropout voltage, low supply current • Portable, Battery Powered Equipment and output drive capability of the LM4140 makes this • Instrumentation and Test Equipment product an ideal choice for battery powered and portable applications. • Automotive The LM4140 is available in three grades (A, B, C) • Industrial Process Control with 0.1% initial accuracy and 3, 6 and 10 ppm/°C • Data Acquisition Systems temperature coefficients. For even lower Tempco, • Medical Equipment contact Texas Instruments. • Precision Scales The device performance is specified over the • Servo Systems temperature range (0°C to +70°C) and is available in compact 8-pin package. • Battery Charging For other output voltage options from 0.5V to 4.5V, contact Texas Instruments. 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 © 2000–2013, 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. |
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