|
DS1620
Digital Thermometer and Thermostat
|
Status
Description
The DS1620 Digital Thermometer and Thermostat provides 9-bit temperature readings which indicate the temperature of the device. With three thermal alarm outputs, the DS1620 can also act as a thermostat. THIGH is driven high if the DS1620's temperature is greater than or equal to a user-defined temperature TH. TLOW is driven high if the DS1620's temperature is less than or equal to a user-defined temperature TL. TCOM is driven high when the temperature exceeds TH and stays high until the temperature falls below that of TL.
User-defined temperature settings are stored in nonvolatile memory, so parts can be programmed prior to insertion in a system, as well as used in standalone applications without a CPU. Temperature settings and temperature readings are all communicated to/from the DS1620 over a simple 3-wire interface.
|
|
Data Sheet
|
Key Features
- Requires no External Components
- Supply Voltage Range Covers from 2.7V to 5.5V
- Measures Temperatures from -55°C to +125°C in 0.5°C Increments; Fahrenheit Equivalent is -67°F to +257°F in 0.9°F Increments
- Temperature is Read as a 9-Bit Value
- Converts Temperature to Digital Word in 1 Second (max)
- Thermostatic Settings are User-Definable and Nonvolatile
- Data is Read from/Written via a 3-Wire Serial Interface (CLK, DQ, active-low RST)
- Applications Include Thermostatic Controls, Industrial Systems, Consumer Products, Thermometers, or any Thermally Sensitive System
- 8-Pin DIP or SO (208-mil) Packages
|
|
Applications/Uses
- Consumer Products
- Industrial Systems
- Thermally Sensitive Systems
- Thermometers
- Thermostatic Controls
|
|
|
|
Key Specifications:
| Temperature Sensors |
| Part Number |
Sensor Type |
Functions |
Interface |
Accuracy
(±°C) |
Parasite Pwr. |
Temp. Thresh. |
Temp. Resolution
(bits) |
Oper. Temp.
(°C) |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| max w/pins |
See Notes |
| DS1620 |
Local |
| Dual Output Temperature Switch | | Dual Temperature Alarms | | Standalone Thermostat | | Temperature Switch/Temperature Comparator |
|
|
0.5 |
No |
Programmable (NV) |
|
-55 to +125 |
44.1 |
$3.03 @1k |
|
See All Temperature Sensors (103)
|
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|
|
| Temperature Switches |
| Part Number |
Switch Type |
Functions |
Interface |
Accuracy
(±°C) |
Temp. Thresh.
(°C) |
Features |
Package/Pins |
Budgetary Price |
| See Notes |
| DS1620 |
Local |
| Dual Output Temperature Switch | | Dual Temperature Alarms | | Standalone Thermostat | | Temperature Switch/Temperature Comparator |
|
|
0.5 |
| Factory Programmed | | Programmable |
|
| High Accuracy | | Nonvolatile Thermostatic Settings | | Push Pull Active High Output | | Separate High and Low Temperature Thresholds |
|
|
$3.03 @1k |
|
See All Temperature Switches (22)
|
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|
|
Diagram
Functional Block Diagram
More Information
Didn't Find What You Need?
Information Index
Rev 3;
2005-06-02
This page last modified: 2009-10-23
|
Download
E-Mail