Temperature sensor consists of built-in 10-bit R-2R DAC, diode and own reference voltage former. When requested, controller performs conversion of diode voltage level, which depends on temperature linearly. After conversion is done it sets “ready” flag to “1” and outputs 10-bit code. Die temperature is calculated with the following expression: Temp = (code-407)*0.625.
The conversion time is 640 us.
With small size, usability and low current consumption, this device is ideal for use in controlling of the die temperature.
The block is fabricated on SMIC CMOS 0.18 um technology.
Temperature sensor
Overview
Key Features
- SMIC CMOS 0.18 um
- Built-in 10-bit R-2R DAC
- Operating temperature range -45 …+100 º C
- Wide voltage range 2.5 … 3.6 V with own reference voltage former
- Low current consumption 186.3 uA
- Independent reference voltage source available
- Small area
- No external components required
- Portable to other technologies (upon request)
Applications
- On chip temperature measurement
- Pseudostatic analog digitization
- Sensitive analog circuit
- Navigation receiver
- High clock digital VLSI
Deliverables
- Schematic or NetList
- Abstract model (.lef and .lib files)
- Layout view (optional)
- Behavioral model (Verilog)
- Extracted view (optional)
- GDSII
- DRC, LVS, antenna report
- Test bench with saved configurations (optional)
- Documentation
Technical Specifications
Foundry, Node
SMIC CMOS 0.18 um
Maturity
silicon proven
Availability
Now
SMIC
Silicon Proven:
180nm
G