1 Features
1• LM71Q is AEC-Q100 Grade 0 Qualified and is
Manufactured on an Automotive Grade Flow
• 5-Pin SOT-23 Package or 6-Pin No-Pull-Back
WSON Package
• Operates Over a Full −40°C to +150°C Range
• SPI and MICROWIRE Bus Interface
• Key Specifications:
– Supply Voltage: 2.65V to 5.5V
– Supply Current
– Operating: 300 μA (typ)
– 550 μA (max)
– Temperature Accuracy
– −10°C to +65°C: ±1.5°C (max)
– −40°C to 150°C: +3/− 2°C (max)
– Temperature Resolution: 31.25 m°C

2 Applications
• System Thermal Management
• Personal Computers
• Portable Electronic Devices
• Disk Drives
• Office Electronics
• Electronic Test Equipment
• Vending Machines
• Automotive

3 Description
The LM71 is a low-power, high-resolution digital
temperature sensor with an SPI and MICROWIRE
compatible interface, available in the 5-pin SOT-23 or
the 6-pin WSON (no pull back) package. The host
can query the LM71 at any time to read temperature.
Its low operating current is useful in systems where
low power consumption is critical.
The LM71 has 13-bit plus sign temperature resolution
(0.03125°C per LSB) while operating over a
temperature range of −40°C to +150°C.
The LM71’s 2.65V to 5.5V supply voltage range, fast
conversion rate, low supply current, and simple SPI
interface make it ideal for a wide range of
applications. The LM71Q is available in the 5-lead
SOT-23 package only.