1FEATURES

2? 0.25°C Temperature Resolution.

? Shutdown Mode Conserves Power Between

Temperature Reading

? SPI and MICROWIRE Bus Interface

? VSSOP-8 and WSON-8 Packages Save Space

? UL Recognized Component

APPLICATIONS

? System Thermal Management

? Personal Computers

? Disk Drives

? Office Electronics

? Electronic Test Equipment

KEY SPECIFICATIONS

? Supply Voltage 2.65V to 5.5V

? Supply Current

– Operating

– 260 μA (typ)

– 490 μA (max)

– Shutdown

– 12 μA (typ)

? Temperature Accuracy

– ?40°C to 85°C, ±2°C(max)

– ?10°C to 65°C, +1.5/?2°C(max)

– ?55°C to 125°C, +3/?2°C(max)

– ?55°C to 150°C, +3.5/?2°C(max)

DESCRIPTION

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.