DS1721S+ Maxim Integrated Products, DS1721S+ Datasheet - Page 15

• Manufacturer Part Number: DS1721S+
• Description: IC THERMOMETER/STAT DIG HP 8SOIC
• Manufacturer: Maxim Integrated Products

Specifications of DS1721S+

• Function: Thermometer, Thermostat
• Topology: ADC, Comparator, Register Bank
• Sensor Type: Internal
• Sensing Temperature: -55°C ~ 125°C
• Output Type: I²C™/SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• 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: +/- 1 C
• Digital Output - Bus Interface: 2-Wire, SMBus
• Digital Output - Number Of Bits: 12 bit
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Supply Current: 1000 uA
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 1°C
• Temperature Sensing Range: -55°C To +125°C
• Supply Voltage Range: 2.7V To 5.5V
• Resolution (bits): 12bit
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DC ELECTRICAL CHARACTERISTICS:
DIGITAL THERMOMETER
AC ELECTRICAL CHARACTERISTICS:
2-WIRE INTERFACE
PARAMETER
DS1721
Thermometer Error
Resolution
Conversion Time
PARAMETER
SCL Clock
Frequency
Bus Free Time
Between a STOP
and START
Condition
Hold Time
(Repeated) START
Condition
Low Period of
SCL Clock
High Period of
SCL Clock
Setup Time for a
Repeated START
Condition
Data Hold Time
Data Set-up Time
Rise Time of both
SDA and SCL
Signals
Fall Time of both
SDA and SCL
Signals
Set-up time for
STOP Condition
SYMBOL
SYMBOL
t
t
t
t
t
t
HD:DAT
HD:STA
SU:DAT
CONVT
T
t
SU:STA
SU:STO
t
f
t
HIGH
LOW
BUF
SCL
ERR
t
t
R
F
-55°C to +125°C
3.0V≤V
2.7V≤V
-10°C to +85°C,
-10°C to +85°C,
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
CONDITION
CONDITION
Conversions
Conversions
Conversions
Conversions
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
10-bit
11-bit
12-bit
9-bit
DD
DD
15 of 17
≤5.5V
<3.0V
(-55°C to +125°C; 2.7V £ V
(-55°C to +125°C; V
20+0.1
20+0.1
MIN
MIN
100
250
1.3
4.7
0.6
4.0
1.3
4.7
0.6
4.0
0.6
4.7
0.6
4.0
C
C
9
0
0
0
0
B
B
TYP
TYP
MAX
MAX
93.75
187.5
1000
1000
±1.0
±1.5
±2.0
375
750
400
100
300
300
0.9
12
DD
UNITS
UNITS
=2.7V to 5.5V)
KHz
bits
ms
°C
°C
°C
µs
µs
µs
µs
µs
µs
µs
ns
ns
ns
DD
NOTES
NOTES
£ 5.5V)
5
6
7
7
8