Micropower Voltage Reference Diode - Texas Instruments
Description
LM185-2.
5QML
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ti.
com
SNVS385A – NOVEMBER 2005 – REVISED MARCH 2013
Micropower Voltage Reference Diode
Check for Samples: LM185-2.
5QML
FEATURES
1
•2 Operating Current of 20 μA to 20 mA • 0.
6Ω Dynamic Impedance (A grade) • Low Temperature Coefficient • Low Voltage Reference—2.
5V
DESCRIPTION
The LM185-2.
5 are micropower 2-terminal band-gap voltage regulator diodes.
Operating over a 20 μA to 20 mA current range, they feature exceptionally low dynamic impedance and good temperature stability.
On-chip trimming is used to provide tight voltage tolerance.
Since the LM185-2.
5 band-gap reference uses only transistors and resistors, low noise and good long term stability result.
Careful design of the LM185-2.
5 has made the device exceptionally tolerant of capacitive loading, making it easy to use in almost any reference application.
The wide dynamic operating range allows its use with widely varying supplies with excellent regulation.
The extremely low power drain of the LM185-2.
5 makes it useful for micropower circuitry.
This voltage reference can be used to make portable meters, regulators or general purpose analog circuitry with battery life approaching shelf life.
Further, the wide operating current allows it to replace older references with a tighter tolerance part.
For applications requiring 1.
2V see LM185-1.
2.
Connection Diagram
N/C 1 N/C 2 N/C 3 N/C 4
V- 5
10 + VREF 9 N/C 8 N/C 7 N/C 6 N/C
Figure 1.
CLGA Package-Top View See Package Number NAC
Figure 2.
PFM Metal Can Package- Bottom View See Package Number NDU
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.
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas Instruments standard warranty.
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