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LM4121 Datasheet(PDF) 1 Page - Texas Instruments |
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LM4121 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page ![]() LM4121 www.ti.com SNVS073C – APRIL 2000 – REVISED APRIL 2013 LM4121 Precision Micropower Low Dropout Voltage Reference Check for Samples: LM4121 1 FEATURES (LM4121-1.2) DESCRIPTION 2 • Small SOT23-5 Package The LM4121 is a precision bandgap voltage • Low Voltage Operation reference available in a fixed 1.25V and adjustable • High Output Voltage Accuracy: 0.2% version with up to 5 mA current source and sink capability. • Source and Sink Current Output: ±5 mA • Supply current: 160 μA Typ. This series reference operates with input voltages as low as 1.8V and up to 12V consuming 160 µA (Typ.) • Low Temperature Coefficient: 50 ppm/°C supply current. In power down mode, device current • Enable Pin drops to less than 2 μA. • Output Voltages: 1.25V and Adjustable The LM4121 comes in two grades A and Standard. • Industrial Temperature Range: −40°C to +85°C The best grade devices (A) have an initial accuracy of • (For Extended Temperature Range, −40°C to 0.2%, while the standard have an initial accuracy of 125°C, Contact Texas Instruments) 0.5%, both with a tempco of 50ppm/°C ensured from −40°C to +125°C. APPLICATIONS The very low operating voltage, low supply current and power-down capability of the LM4121 makes this • Portable, Battery Powered Equipment product an ideal choice for battery powered and • Instrumentation and Process Control portable applications. • Automotive & Industrial The device performance is ensured over the industrial • Test Equipment temperature range ( −40°C to +85°C), while certain • Data Acquisition Systems specs are ensured over the extended temperature range ( −40°C to +125°C). Please contact Texas • Precision Regulators Instruments for full specifications over the extended • Battery Chargers temperature range. The LM4121 is available in a • Base Stations standard 5-pin SOT-23 package. • Communications • Medical Equipment Block Diagram * Resistors are removed on the LM4121-ADJ †LM4121-ADJ only Figure 1. LM4121-1.2 Block Diagram 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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