DS75LXS+ Maxim Integrated Products, DS75LXS+ Datasheet - Page 7

• Manufacturer Part Number: DS75LXS+
• Description: IC THERMOMETER/STAT DIG 8-SOIC
• Manufacturer: Maxim Integrated Products

Specifications of DS75LXS+

• Function: Thermometer, Thermostat
• Topology: ADC (Sigma Delta), Comparator, Register Bank
• Sensor Type: Internal
• Sensing Temperature: -55°C ~ 125°C
• Output Type: I²C™/SMBus™
• Output Alarm: No
• Output Fan: No
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Temperature Threshold: Programmable
• Full Temp Accuracy: +/- 2 C
• Digital Output - Bus Interface: 2-Wire, SMBus
• Digital Output - Number Of Bits: 9 bit to 12 bit
• Supply Voltage (max): 3.7 V
• Supply Voltage (min): 1.7 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Supply Current: 1000 uA
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 2°C
• Supply Voltage Range: 1.7V To 3.7V
• Resolution (bits): 12bit
• Sensor Case Style: SOIC
• No. Of Pins: 8
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Temperature Sensing Range: -55°C To +125°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 3. O.S. Output Operation Example
Configuration Register
The configuration register allows the user to program various DS75LX options such as conversion resolution,
thermostat fault tolerance, thermostat polarity, thermostat operating mode, and shutdown mode. The configuration
register is arranged as shown in Figure 4 and detailed descriptions of each bit are provided in Table 2. The user
has read/write access to all bits in the configuration register except the MSb, which is a reserved read-only bit. The
entire register is volatile, and thus powers up in its default state.
Figure 4. Configuration Register
In this example the
DS75LX is configured to
have a fault tolerance of 2.
O.S. Output - Comparator Mode
O.S. Output - Interrupt Mode
MSb
0
Temperature
bit 6
R1
Inactive
Inactive
Active
bit 5
T
Active
R0
DS75LX: Digital Thermometer and Thermostat with Extended Addressing
HYST
T
OS
bit 4
F1
7 of 13
bit 3
F0
POL
bit 2
Conversions
bit 1
TM
Assumes an interrupt
has occurred
clear event
LSb
SD