AD7416-7418 Analog Devices, AD7416-7418 Datasheet - Page 3

• Manufacturer Part Number: AD7416-7418
• Description: 10-Bit Digital Temperature Sensor (AD7416) and Single/Four-Channel ADC (AD7417/AD7418)
• Manufacturer: Analog Devices

NOTES
1
2
3
4
5
6
7
Specifications subject to change without notice.
AD7416–SPECIFICATIONS
Parameter
TEMPERATURE SENSOR AND ADC
DIGITAL INPUTS
DIGITAL OUTPUTS
AC ELECTRICAL CHARACTERISTICS
NOTES
1
2
Specifications subject to change without notice.
REV. B
For V
Sample tested during initial release and after any redesign or process change that may affect this parameter.
B version applies to AD7417 only with temperature range of –40 C to +85 C. A version temperature range is –55 C to +125 C. For V
and temperature sensor measurement error = 3 C.
See Terminology.
Refers to the input current when the part is not converting. Primarily due to reverse leakage current in the ESD protection diodes.
Sample tested during initial release and after any redesign or process change that may affect this parameter.
On-chip reference shuts down when external reference is applied.
The accuracy of the temperature sensor is affected by reference tolerance. The relationship between the two is explained in the section titled Temperature Sensor.
The AD7417 and AD7418 I
Accuracy
Resolution
Temperature Conversion Time
Update Rate, t
OTI Delay
Supply Current
T
T
Input High Voltage, V
Input Low Voltage, V
Input High Current, I
Input Low Current, I
Input Capacitance, C
Output Low Voltage, V
Output High Current
Output Fall Time, t
OS Output Low Voltage, V
Serial Clock Period, t
Data In Setup Time to SCL High, t
Data Out Stable after SCL Low, t
SDA Low Setup Time to SCL Low
SDA High Hold Time after SCL High
SDA and SCL Fall Time, t
OTI
HYST
(Start Condition), t
(Stop Condition), t
DD
Default Temperature
= 2.7 V to 3 V, T
Default Temperature
R
A
f
max = +85 C and accuracy = 3 C.
DD
IL
IN
1
IL
5
4
IH
IH
OL
is typically 1 mA when the parts are set for external CONVST Mode and CONVST is held high.
6
OL
3
DATA OUT
2
DATA IN
SCL
SDA
SDA
2
Figure 1. Diagram for Serial Bus Timing
Min
1
+V
–0.3
2.5
50
0
50
50
S
t
t
4
R
(V
0.7
DD
= +2.7 V to +5.5 V, GND = 0 V, REF
Typ
10
400
350
0.2
80
75
0.005
–0.005 –1.0
20
t
2
t
1
–3–
Max
40
6
1.0
600
1.5
+V
+V
1.0
0.4
1
250
0.8
90
2.0
3.0
S
S
t
t
3
R
+ 0.5
0.3
Units
Bits
ms
mA
V
V
pF
V
mA
ns
V
ns
ns
ns
ns
ns
C
C
C
C
s
s
A
A
A
A
s
t
6
t
5
IN
Test Conditions/Comments
T
T
Depends on Fault Queue Setting
I
I
Shutdown Mode
V
V
All Digital Inputs
I
V
C
I
AD7416/AD7417/AD7418
See Figure 1
See Figure 1
See Figure 1
See Figure 1
See Figure 1
See Figure 1
= +2.5 V, unless otherwise noted)
2
2
OL
OUT
A
A
C Active
C Inactive
IN
IN
OH
L
AD7416/AD7417/AD7418
= –25 C to +100 C (V
= –55 C to +125 C (V
= 400 pF, I
= 3 mA
= 5 V
= 0 V
= 5 V
= 4 mA
O
= 3 mA
DD
= +2.7 V, T
DD
DD
A
= 3 V min)
= 3 V min)
= +85 C max
1
1