The LM70 is a temperature sensor, Delta-Sigma analog-to-digital converter with an SPI and MICROWIRE compatible interface available in WSON and VSSOP 8-pin packages. The host can query the LM70 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 LM70 has 10-bit plus sign temperature resolution (0.25°C per LSB) while operating over a temperature range of −55°C to +150°C.
The LM70's 2.65V 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.
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| Local sensor accuracy (max) | 2 |
| Type | Local |
| Operating temperature range (°C) | -55 to 150 |
| Supply voltage (min) (V) | 2.65 |
| Interface type | SPI |
| Supply voltage (max) (V) | 5.5 |
| Features | UL recognized |
| Supply current (max) (µA) | 490 |
| Temp resolution (max) (Bits) | 11 |
| Remote channels (#) | 0 |
| Rating | Catalog |
| VSSOP (DGK) | 8 | 14.7 mm² 3 x 4.9 |
| WSON (NGK) | 8 | 9 mm² 3 x 3 |
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