Datasheet
RoHS Compliance Information
| Size in Kbytes | Date |
 |
| LM74 SPI/MICROWIRE™ 12-Bit Plus Sign Temperature Sensor |
710
Kbytes |
10-May-05 |
Download |
LM74 SPI/MICROWIRE™ 12-Bit Plus Sign Temperature Sensor (Japanese)
 |
510 Kbytes |
|
 |
Package Availability, Models, Samples & Pricing
| Obsolete Part | Alternate Part or
Supplier | Source | Last Time Buy Date |
LM74A-3 MDA
| NONE
| NATIONAL SEMICONDUCTOR
| 03 Dec 2008
|
LM74CIBP-3
| NONE
| NATIONAL SEMICONDUCTOR
| 16 Nov 2008
|
LM74CIBP-5
| NONE
| NATIONAL SEMICONDUCTOR
| 24 Jul 2009
|
LM74CIBPX-3
| NONE
| NATIONAL SEMICONDUCTOR
| 16 Nov 2008
|
LM74CIBPX-5
| NONE
| NATIONAL SEMICONDUCTOR
| 16 Nov 2008
|
LM74CITP-5
| LM74CIM-5
| National Semiconductor
| 30 Nov 2009
|
LM74CITPX-5
| LM74CIMX-5
| National Semiconductor
| 30 Nov 2009
|
General Description
The LM74 is a temperature sensor, Delta-Sigma analog-to-digital converter with an SPI and MICROWIRE compatible interface. The host can query the LM74 at any time to read temperature. A shutdown mode decreases power consumption to less than 10 µA. This mode is useful in systems where low average power consumption is critical.
The LM74 has 12-bit plus sign temperature resolution (0.0625°C per LSB) while operating over a temperature range of -55°C to +150°C.
The LM74's 3.0V to 5.5V supply voltage range, low supply current and simple SPI interface make it ideal for a wide range of applications. These include thermal management and protection applications in hard disk drives, printers, electronic test equipment, and office electronics. The LM74 is available in the SO-8 package as well as an 5-Bump micro SMD package.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM74CIM-3 | CS065 | 2 | 38968 | 52 | 0 | 4402000 | 1 | 1249079519
|
|
LM74CIM-5 | CS065 | 2 | 38968 | 52 | 0 | 4402000 | 1 | 1249079519
|
|
LM74CIMX-3 | CS065 | 2 | 38968 | 52 | 0 | 4402000 | 1 | 1249079519
|
|
LM74CIMX-5 | CS065 | 2 | 38968 | 52 | 0 | 4402000 | 1 | 1249079519
|
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.
Application Notes
| Title | Size in Kbytes |
Date |
|
| AN-1256: Application Note 1256 Tiny Temperature Sensors for Portable Systems |
66
Kbytes |
1-Oct-02 |
Download |
More Application Notes
| Title | Size in Kbytes |
Date |
|
| AN-1155: Application Note 1155 A Simple Software I2C Routine for the COP8 |
82
Kbytes |
15-May-04 |
Download |
| AN-79: Application Note 79 IC Preamplifier Challenges Choppers on Drift |
380
Kbytes |
1-Oct-02 |
Download |
| AN-71: Application Note 71 Micropower Circuits Using the LM4250 Programmable Op Amp |
312
Kbytes |
2-Oct-02 |
Download |
| AN-127: Application Note 127 LM143 Monolithic High Voltage Operational Amplifier Applications |
441
Kbytes |
2-May-04 |
Download |
| AN-210: Application Note 210 New Phase-Locked-Loops Have Advantages as Frequency to Voltage Converters (and more) |
339
Kbytes |
3-Oct-02 |
Download |
| AN-480: A 40 MHz Programmable Video Op Amp |
181
Kbytes |
4-Nov-95 |
Download |
[Information as of 8-Nov-2009]
|
