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AD7314ARM-REEL Datasheet(PDF) 2 Page - Analog Devices

Part # AD7314ARM-REEL
Description  Low Voltage, 10-Bit Digital Temperature Sensor in 8-Lead MSOP
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7314ARM-REEL Datasheet(HTML) 2 Page - Analog Devices

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REV. A
–2–
AD7314–SPECIFICATIONS*(T
A = TMIN to TMAX, VDD = 2.65 V to 5.5 V, unless otherwise noted.)
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
TEMPERATURE SENSOR AND ADC
Accuracy
±2.0
∞CTA = –35∞C to +85∞C. VDD = 2.65 V to 2.9 V
±1.0
∞CTA = –35∞C to +85∞C. VDD = 3 V to 5.5 V
Resolution
10
Bits
Update Rate, tR
400
ms
Temperature Conversion Time
25
ms
SUPPLIES
Supply Voltage
2.65
5.5
V
For Specified Performance
Supply Current
Normal Mode (Inactive)
250
300
mA
Part Not Converting, VDD = 2.65 V to 2.9 V
275
mA
Part Not Converting, VDD = 3 V to 5.5 V
Normal Mode (Active)
1
mA
Part Converting, VDD = 2.65 V to 2.9 V
1.2
mA
Part Converting, VDD = 3 V to 5.5 V
Shutdown Mode
1
mAVDD = 2.65 V to 2.9 V
1
mAVDD = 3 V to 5.5 V
Power Dissipation
860
mWVDD = 2.65 V. Using Normal Mode
(Auto Conversion)
Power Dissipation
VDD = 2.65 V. Using Shutdown Mode
1 SPS
3
mW
10 SPS
3.3
mW
100 SPS
6
mW
DIGITAL INPUT
Input High Voltage, VIH
1.85
V
VDD = 2.65 V to 2.9 V
Input Low Voltage, VIL
0.53
V
VDD = 2.65 V to 2.9 V
Input High Voltage, VIH
2.4
V
VDD = 3 V to 5.5 V
Input Low Voltage, VIL
0.8
V
VDD = 3 V to 5.5 V
Input Current, IIN
±1
mAVIN = 0 V to VDD
Input Capacitance, CIN
10
pF
All Digital Inputs
DIGITAL OUTPUT
Output High Voltage, VOH
2.4
V
ISOURCE = ISINK = 200
mA
Output Low Voltage, VOL
0.4
V
IOL = 200
mA
Output Capacitance, COUT
50
pF
*All specifications apply for –35
∞C to +85∞C, unless otherwise noted.
Specifications subject to change without notice.
TIMING CHARACTERISTICS1, 2
Parameter
Limit
Unit
Comments
t1
0
ns min
CE to SCLK Setup Time
t2
50
ns min
SCLK High Pulse Width
t3
50
ns min
SCLK Low Pulse Width
t4
4
35
ns max
Data Access Time after SCLK Rising Edge
t5
20
ns min
Data Setup Time prior to SCLK Falling Edge
t6
0
ns min
Data Hold Time after SCLK Falling Edge
t7
0
ns min
CE to SCLK Hold Time
t8
4
40
ns max
CE to SDO High Impedance
NOTES
1Guaranteed by design and characterization, not production tested.
2All input signals are specified with tr = tf = 5 ns (10% to 90% of V
DD) and are timed from a voltage level of 1.6 V.
3All specifications apply for –35
∞C to +85∞C, unless otherwise noted.
4Measured with the load circuit of Figure 2.
Specifications subject to change without notice.
(TA
3 = T
MIN to TMAX, VDD = 2.65 V to 5.5 V, unless otherwise noted. See Figure 1.)


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