Datasheet
Table Of Contents
- Features
- Applications
- Description
- Typical Application
- Absolute Maximum Ratings
- Pin Configuration
- Order Information
- Electrical Characteristics
- Typical Performance Characteristics
- Pin Functions
- Functional Diagram
- Timing Diagram
- Operation
- Applications Information
- Typical Applications
- Package Description
- Revision History
- Typical Application
- Related Parts
LTC2991
22
2991fd
For more information www.linear.com/LTC2991
applicaTions inForMaTion
Table 17. Recommended Transistors to Be Used as Temperature Sensors
MANUFACTURER PART NUMBER PACKAGE
Fairchild Semiconductor MMBT3904 SOT-23
Fairchild Semiconductor FMMT3904 SOT-23
Fairchild Semiconductor 2N3904 TO-92
Central Semiconductor CMPT3904 SOT-23
Central Semiconductor CET3904E SOT-883L
Diodes, Inc. MMBT3904 SOT-23
On Semiconductor MMBT3904LT1 SOT-23
NXP MMBT3904 SOT-23
Infineon MMBT3904 SC-70
Rohm UMT3904 SOT-23
Table 16. Conversion Formats
TEMPERATURE FORMATS FORMAT BINARY VALUE D[12:0] TEMPERATURE
Temperature Internal, T
R1
Through T
R4
LSB = 0.0625 Degrees
Celsius 0011111010000 125.0000
Celsius 0000110010001 25.0625
Celsius 0000110010000 25.0000
Celsius 1110110000000 –40.0000
Kelvin 1100011100010 398.1250
Kelvin 1000100010010 273.1250
Kelvin 0111010010010 233.1250
Kelvin 0010011010000 77.0000
Diode Voltage Formats Sign Binary V
alue D[13:0] Voltage
Remote Temperature T
R1
Through T
R4
LSB = 38.15µV
0 00000000000000 0.0000
0 11111111111111 0.31249
0 00000000000000 0.31252
0 11111111111111 0.62501
0 00000000000000 0.62505
0 10011001100100 0.99999