LM385M-2.5/NOPB National Semiconductor, LM385M-2.5/NOPB Datasheet
LM385M-2.5/NOPB
Specifications of LM385M-2.5/NOPB
*LM385M-2.5/NOPB
LM385M-2.5
Related parts for LM385M-2.5/NOPB
LM385M-2.5/NOPB Summary of contents
Page 1
... Low voltage reference—2.5V ■ 1.2V device and adjustable device also available— LM185-1.2 series and LM185 series, respectively 551908 SOT-23 551929 Order Number LM385M3-2.5 See NS Package Number MA03B 5519 January 30, 2008 SO Package 551911 Order Number LM285M-2.5, LM285BXM-2.5, LM285BYM-2.5 LM385M-2.5, LM385BM-2.5 LM385BXM-2 ...
Page 2
LCC Leadless Chip Carrier Order Number LM185E-2.5/883 See NS Package Number E20A www.national.com LM185H-2.5/883, LM185BXH-2.5, LM185BXH-2.5/883, LM185BYH-2.5, LM185BYH2.5/883, LM285H-2.5, 551914 See NS Package Number H02A 2 TO-46 Metal Can Package 551913 Bottom View Order Number LM185H-2.5, or LM285BYH-2.5 ...
Page 3
... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Reverse Current Forward Current Operating Temperature Range (Note 3) LM185-2.5 LM285-2.5 LM385-2.5 Electrical Characteristics (Note 4) Parameter Reverse Breakdown I R Voltage Minimum Operating ...
Page 4
... Electrical Characteristics Parameter Conditions Reverse T = 25°C, A Breakdown ≤ ≤ 20 μA Voltage Minimum Operating Current LM385M3-2.5 ≤ ≤ 20 μA Reverse Breakdown Voltage ≤ ≤ Change with Current = 100 μA, Reverse Dynamic I R Impedance 100 μA, Wideband Noise I R (rms) ≤ ≤ ...
Page 5
Typical Performance Characteristics Reverse Characteristics Forward Characteristics Reverse Dynamic Impedance Reverse Characteristics 551915 Temperature Drift 551917 Reverse Dynamic 551919 5 551916 551918 Impedance 551920 www.national.com ...
Page 6
Noise Voltage Response Time Applications Wide Input Range Reference 551912 Micropower Reference from 9V Battery 551902 www.national.com Filtered Output Noise 551921 551923 LM385-2.5 Applications Micropower 5V Reference ≃ 40 μA Note 10 551922 551909 ...
Page 7
Note 11 PRECISION 1 μ CURRENT SOURCES Micropower 10V Reference 551910 551924 7 551925 www.national.com ...
Page 8
METER THERMOMETERS Calibration 1. Short LM385-2.5, adjust R3 for I =temp at 1μA/°K OUT Remove short, adjust R2 for correct reading in centigrade Calibration =temp at 1.8 μA/°K 1. Short LM385-2.5, adjust R3 for I OUT Remove short, adjust R2 ...
Page 9
Micropower Thermocouple Cold Junction Compensator Adjustment Procedure 1. Adjust TC ADJ pot until voltage across R1 equals Kelvin temperature multiplied by the thermocouple Seebeck coefficient. 2. Adjust zero ADJ pot until voltage across R2 equals the thermocouple Seebeck coefficient multiplied ...
Page 10
Schematic Diagram www.national.com 551901 10 ...
Page 11
Physical Dimensions inches (millimeters) unless otherwise noted Order Number LM185H-2.5, LM185H-2.5/883, LM185BXH-2.5, LM185BXH-2.5/883, LM185BYH-2.5, LM185BYH-2.5/883, LM285H-2.5, or LM285BYH-2.5 Order Number LM185E-2.5/883 NS Package Number E20A TO-46 Metal Can Package (H) NS Package Number H02A 11 www.national.com ...
Page 12
... SOT-23 Package (M3) Order Number LM385M3-2.5 NS Package Number MA03B 12 ...
Page 13
... Small Outline (SO-8) Package (M) Order Number LM285M-2.5, LM285BXM-2.5, LM285BYM-2.5, LM385M-2.5, LM385BM-2.5, LM385BXM-2.5 or LM385BYM-2.5 NS Package Number M08A 13 www.national.com ...
Page 14
Order Number LM285Z-2.5, LM285BXZ-2.5, LM285BYZ-2.5, www.national.com TO-92 Plastic Package (Z) LM385Z-2.5, LM385AXZ-2.5, LM385AYZ-2.5, LM385BZ-2.5, LM385BXZ-2.5 or LM385BYZ-2.5 NS Package Number Z03A 14 ...
Page 15
Notes 15 www.national.com ...
Page 16
... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock Conditioners www.national.com/timing Data Converters www.national.com/adc Displays www.national.com/displays Ethernet www.national.com/ethernet Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www ...