DS1822+ Maxim Integrated Products, DS1822+ Datasheet - Page 20

• Manufacturer Part Number: DS1822+
• Description: Board Mount Temperature Sensors IC THERMOMETER ECONO DIG
• Manufacturer: Maxim Integrated Products

Specifications of DS1822+

• Temperature Threshold: Programmable
• Full Temp Accuracy: +/- 2 C
• Package / Case: TO-92
• Digital Output - Bus Interface: 1-Wire
• Digital Output - Number Of Bits: 9 bit to 12 bit
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 3 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Output Type: Digital
• Supply Current: 1.5 mA
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 2°C
• Supply Voltage Range: 3V To 5.5V
• Resolution (bits): 12bit
• Sensor Case Style: TO-92
• No. Of Pins: 3
• Accuracy %: 2°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AC ELECTRICAL CHARACTERISTICS: NV MEMORY
AC ELECTRICAL CHARACTERISTICS
NOTES:
1.
2.
TYPICAL PERFORMANCE CURVE Figure 17
NV Write Cycle Time
EEPROM Writes
EEPROM Data Retention
Temperature Conversion
Time
Time to Strong Pullup On
Time Slot
Recovery Time
Write 0 Low Time
Write 1 Low Time
Read Data Valid
Reset Time High
Reset Time Low
Presence Detect High
Presence Detect Low
Capacitance
Refer to timing diagrams in Figure 18.
Under parasite power, if t
PARAMETER
PARAMETER
-0.2
-0.4
-0.6
-0.8
-1.2
0.8
0.6
0.4
0.2
-1
0
-10
SYMBOL
RSTL
SYMBOL
0
C
t
t
N
t
r
PDHIGH
t
PDLOW
t
t
t
t
t
t
CONV
t
IN/OUT
LOW0
LOW1
SPON
RSTH
SLOT
RSTL
RDV
EEDR
REC
EEWR
t
> 960μs, a power on reset may occur.
DS1822 Typical Performance Curve
wr
10
Command Issued
10-bit resolution
11-bit resolution
12-bit resolution
Start Convert T
9-bit resolution
CONDITION
-55°C to +55°C
-55°C to +55°C
CONDITION
20
20 of 21
Temperature (°C)
-3s Error
30
Mean Error
+3s Error
(-55°C to +125°C; V
(-55°C to +100°C; V
40
MIN TYP MAX UNITS
480
480
60
60
15
60
1
1
MIN
50k
10
50
TYP
60
2
93.75
187.5
375
750
120
120
240
10
15
15
60
25
DD
DD
70
MAX
= 3.0V to 5.5V)
= 3.0V to 5.5V)
10
ms
ms
ms
ms
pF
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
80
UNITS
NOTES
writes
years
ms
DS1822
1,2
1
1
1
1
1
1
1
1
1
1
1
1