Datasheet
RoHS Compliance Information
| Size in Kbytes | Date |
 |
| LM185/LM285/LM385 Adjustable Micropower Voltage References |
724
Kbytes |
30-Jan-08 |
Download |
LM185/LM285/LM385 Adjustable Micropower Voltage References (Japanese)
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441 Kbytes |
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Package Availability, Models, Samples & Pricing
General Description
The LM185/LM285/LM385 are micropower 3-terminal adjustable band-gap voltage reference diodes. Operating from 1.24 to 5.3V
and over a 10μA to 20mA 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 band-gap reference uses only transistors and resistors,
low noise and good long-term stability result.
Careful design of the LM185 has made the device 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 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.
The LM185 is rated for operation over a −55°C to 125°C temperature range, while the LM285 is rated −40°C to 85°C and the LM385
0°C to 70°C. The LM185 is available in a hermetic TO-46 package and a leadless chip carrier package, while the LM285/LM385
are available in a low-cost TO-92 molded package, as well as S.O.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM385BM | SLM | 0 | 44046 | 0 | 0 | 3532500 | 1 | 1002356520
|
|
LM385BMX | SLM | 0 | 44046 | 0 | 0 | 3532500 | 1 | 1002356520
|
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LM385BXZ | SLM | 0 | 44046 | 0 | 0 | 3532500 | 1 | 1002356520
|
|
LM385BYZ | SLM | 0 | 44046 | 0 | 0 | 3532500 | 1 | 1002356520
|
|
LM385BZ | SLM | 0 | 44046 | 0 | 0 | 3532500 | 1 | 1002356520
|
|
LM385M | SLM | 0 | 44046 | 0 | 0 | 3532500 | 1 | 1002356520
|
|
LM385MX | SLM | 0 | 44046 | 0 | 0 | 3532500 | 1 | 1002356520
|
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LM385Z | SLM | 0 | 44046 | 0 | 0 | 3532500 | 1 | 1002356520
|
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR.
The Long Term Failure Rates were calculated
at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress
temperature of 150°C to an application temperature of 55°C.
For more information on Reliability Metrics, please click here.
[Information as of 7-Nov-2009]
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