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AD79841 датащи(PDF) 4 Page - Analog Devices

номер детали AD79841
подробное описание детали  18-Bit, 2 MSPS PulSAR 15 mW ADC in LFCSP (QFN)
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD79841 датащи(HTML) 4 Page - Analog Devices

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AD7986
Rev. B | Page 4 of 28
AVDD = DVDD = 2.5 V, BVDD = 5 V, VIO = 1.8 V to 2.7 V, VREF = 4.096 V, TA = −40°C to +85°C, unless otherwise noted.
Table 3.
Parameter
Conditions
Min
Typ
Max
Unit
INTERNAL REFERENCE
PDREF = low
Output Voltage
T
A= 25°C
4.081
4.096
4.111
V
Temperature Drift
−40°C to +85°C
±10
ppm/°C
Line Regulation
AVDD = 2.5 V ± 5%
±50
ppm/V
Turn-On Settling Time
C
REF = 10 μF, CREFBUFIN = 0.1 μF
220
ms
REFIN Output Voltage
REFIN @ 25°C
1.2
V
REFIN Output Resistance
7.5
kΩ
EXTERNAL REFERENCE
PDREF = high, REFIN = low
Voltage Range
2.4
5.1
V
Current Drain
2 MSPS, V
REF = 5.0 V
500
µA
REFERENCE BUFFER
REFIN Input Voltage Range
1.2
V
REFIN Input Current
160
µA
DIGITAL INPUTS
Logic Levels
V
IL
−0.3
+0.1 × VIO
V
V
IH
+0.9 × VIO
VIO + 0.3
V
I
IL
−1
+1
µA
I
IH
−1
+1
µA
DIGITAL OUTPUTS
Data Format
Serial, 18 bits, twos complement
Pipeline Delay
Conversion results available immediately
after completed conversion
V
OL
I
SINK = +500 µA
0.4
V
V
OH
I
SOURCE = −500 µA
VIO − 0.3
V
POWER SUPPLIES
AVDD, DVDD
2.375
2.5
2.625
V
BVDD
4.75
5.0
5.25
VIO
Specified performance
1.8
2.5
2.7
V
VIO Range
V
Standby Current1, 2
AVDD = DVDD = VIO = 2.5 V, BVDD = 5.0 V
2.25
µA
Power Dissipation
With Internal Reference
2 MSPS throughput
29
34
mW
Without Internal Reference
2 MSPS throughput
15
16.5
mW
With Internal Reference
1.5 MSPS throughput
26
30
mW
Without Internal Reference
1.5 MSPS throughput
11.5
13
mW
TEMPERATURE RANGE3
Specified Performance
T
MIN to TMAX
−40
+85
°C
1 With all digital inputs forced to VIO or GND as required.
2 During acquisition phase.
3 Contact an Analog Devices, Inc., sales representative for the extended temperature range.


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