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AD7172-2BRUZ-RL7 датащи(PDF) 7 Page - Analog Devices

номер детали AD7172-2BRUZ-RL7
подробное описание детали  True rail-to-rail analog and reference input buffers
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD7172-2BRUZ-RL7 датащи(HTML) 7 Page - Analog Devices

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AD7172-2
Data Sheet
Rev. A | Page 6 of 60
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
LOGIC OUTPUT (DOUT/RDY)
Output High Voltage, VOH1
IOVDD ≥ 4.5 V, ISOURCE = 1 mA
0.8 × IOVDD
V
2.7 V ≤ IOVDD < 4.5 V, ISOURCE = 500 µA
0.8 × IOVDD
V
IOVDD < 2.7 V, ISOURCE = 200 µA
0.8 × IOVDD
V
Output Low Voltage, VOL1
IOVDD ≥ 4.5 V, ISINK = 2 mA
0.4
V
2.7 V ≤ IOVDD < 4.5 V, ISINK = 1 mA
0.4
V
IOVDD < 2.7 V, ISINK = 400 µA
0.4
V
Leakage Current
Floating state
−10
+10
µA
Output Capacitance
Floating state
10
pF
SYSTEM CALIBRATION1
Full-Scale (FS) Calibration
Limit
1.05 × FS
V
Zero-Scale Calibration Limit
−1.05 × FS
V
Input Span
0.8 × FS
2.1 × FS
V
POWER REQUIREMENTS
Power Supply Voltage
AVDD1 to AVSS
3.0
5.5
V
AVDD2 to AVSS
2
5.5
V
AVSS to DGND
−2.75
0
V
IOVDD to DGND
2
5.5
V
IOVDD to AVSS
For AVSS < DGND
6.35
V
POWER SUPPLY CURRENTS4
All outputs unloaded, digital inputs connected
to IOVDD or DGND
Full Operating Mode
AVDD1 Current
AVDD1 = 5 V Typical,
5.5 V Maximum
AIN± and REF± buffers disabled; external
reference
0.23
0.27
mA
AIN± and REF± buffers disabled; internal
reference
0.4
0.48
mA
AIN± and REF± buffers enabled; internal
reference
1.9
2.35
mA
Each buffer: AIN± and REF±
0.38
mA
AVDD1 = 3.3 V Typical,
3.6 V Maximum1
AIN± and REF± buffers disabled; external
reference
0.15
0.19
mA
AIN± and REF± buffers disabled; internal
reference
0.33
0.39
mA
AIN± and REF± buffers enabled; internal
reference
1.65
2.1
mA
Each buffer: AIN± and REF±
0.33
mA
AVDD2 Current
External reference
1
1.1
mA
Internal reference
1.3
1.45
mA
IOVDD Current
External clock
0.33
0.5
mA
Internal clock
0.61
0.82
mA
External crystal
0.98
mA
Standby Mode
Standby (LDO On)
Reference off, total current consumption
32
µA
Reference on, total current consumption
420
µA
Power-Down Mode
Full power-down, LDO, REF±
1
10
µA


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