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AD7173-8 Arkusz danych(PDF) 5 Page - Analog Devices

Numer części AD7173-8
Szczegółowy opis  Low Power, 8-/16-Channel, 31.25 kSPS, 24-Bit, Highly Integrated Sigma-Delta ADC
Download  64 Pages
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
Logo AD - Analog Devices

AD7173-8 Arkusz danych(HTML) 5 Page - Analog Devices

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Data Sheet
AD7173-8
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
LOGIC INPUTS
Input High Voltage, VINH1
2 V ≤ IOVDD ≤ 2.3 V
0.65 × IOVDD
V
2.3 V ≤ IOVDD ≤ 5.5 V
0.7 × IOVDD
V
Input Low Voltage, VINL1
2 V ≤ IOVDD ≤ 2.3 V
0.35 × IOVDD
V
2.3 V ≤ IOVDD ≤ 5.5 V
0.7
V
Hysteresis1
IOVDD > 2.7 V
0.08
0.25
V
IOVDD < 2.7 V
0.04
0.2
V
Leakage Currents
−10
+10
µA
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 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 − AVSS
3.0
5.5
V
AVDD2 − AVSS
2
5.5
V
AVSS − DGND
−2.75
0
V
IOVDD − DGND
2
5.5
V
IOVDD − AVSS
For AVSS < DGND
6.35
V
POWER SUPPLY CURRENTS
All outputs unloaded
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
0.42
0.49
mA
AIN± and REF± buffers enabled; external
reference
2.12
2.71
mA
Each enabled buffered pair: AIN+, AIN− and
REF+, REF−
0.945
1.22
mA
AVDD1 = 3.3 V Typical,
3.6 V Maximum1
AIN± and REF± buffers disabled; external
reference
0.16
0.19
mA
AIN± and REF± buffers disabled; internal
reference
0.34
0.4
mA
AIN± and REF± buffers enabled; external
reference
1.9
2.45
mA
Each enabled buffered pair: AIN+, AIN− and
REF+, REF−
0.87
1.13
mA
AVDD2 Current
External reference
1
1.15
mA
Internal reference
1.25
1.4
mA
IOVDD Current
External clock
0.24
0.39
mA
Internal clock
0.52
0.76
mA
External crystal
0.9
mA
Standby Mode
Standby (LDO on)
Reference off, total current consumption
25
µA
Reference on, total current consumption
400
µA
Power-Down Mode
Full power-down, LDO, REF±
2
10
µA
Rev. 0 | Page 5 of 64


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