DS1722 Dallas, DS1722 Datasheet - Page 10

• Manufacturer Part Number: DS1722
• Description: Digital Thermometer with SPI/3-Wire Interface
• Manufacturer: Dallas

ELECTRICAL CHARACTERISTICS: DIGITAL THERMOMETER
AC ELECTRICAL CHARACTERISTICS: 3-WIRE INTERFACE
TIMING DIAGRAM: 3-WIRE READ DATA TRANSFER Figure 9
Thermometer Error
Resolution
Conversion Time
Data to SCLK Setup
SCLK to Data Hold
SCLK to Data Valid
SCLK Low Time
SCLK High Time
SCLK Frequency
SCLK Rise and Fall
CE to SCLK Setup
SCLK to CE Hold
CE Inactive Time
CE to Output High Z
SCLK to Output High Z
PARAMETER
PARAMETER
SYMBOL
SYMBOL
t
CONVT
T
ERR
t
t
t
t
t
t
t
t
R
CWH
t
t
t
CDH
CDD
t
CCH
CLK
CDZ
CCZ
DC
CL
CH
CC
, t
F
10-bit conversions
11-bit conversions
12-bit conversions
8-bit conversions
9-bit conversions
-55 C to +120 C
-40 C to +85 C
CONDITION
CONDITION
10 of 13
(-55 C to +120 C, 2.65V = = = = V
(-55 C to +120 C, 2.65V =V
MIN
MIN
100
100
400
100
400
DC
35
35
8
TYP MAX UNITS NOTES
TYP MAX UNITS NOTES
1000
67.5
125
250
500
1200
200
150
300
600
5.0
80
40
40
12
75
2.0
3.0
MHz
bits
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
C
DDA
DD
= = = = 5.5V)
=5.5V)
5, 6, 7
8, 9
5, 6
5, 6
5, 6
5, 6
DS1722
6
6
6
6
6
6