±1.5°C Temperature Sensor with SPI Interface - LM71

LM71 (ACTIVE)

±1.5°C Temperature Sensor with SPI Interface

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.

Features

  • 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)
  • Termperature Resolution: 31.25 m°C

All trademarks are the property of their respective owners.

View more

Parametrics Compare all products in Digital Output

 
Local Sensor Accuracy (Max) (+/- C)
Temp Resolution (Max) (bits)
Supply Voltage (Min) (V)
Supply Voltage (Max) (V)
Supply Current (Typ) (uA)
Supply Current (Max) (uA)
Interface
Special Features
Addresses
Iq (Typ) (uA)
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
LM71 LM71-Q1 LM73
1.5     1.5     1    
14     14     14    
2.65     2.65     2.7    
5.5     5.5     5.5    
300     300     320    
550     550     550    
SPI, Microwire     SPI, Microwire     I2C, SMBus, 2-Wire    
Shutdown     Shutdown     Configurable Resolution
Programmable Alert
One-Shot Conversion
Shutdown    
NA     NA     6    
300     300     320    
Catalog     Automotive     Catalog    
-40 to 150     -40 to 150     -40 to 150    
5SOT-23
6WSON    
5SOT-23     6SOT    
0.71 | 1ku     0.86 | 1ku     0.75 | 1ku    

Other qualified versions of LM71

Version Part Number Definition
Automotive LM71-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects
Click Here