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AD7739 数据表(PDF) 4 Page - Analog Devices

部件名 AD7739
功能描述  8-Channel, High Throughput, 24-Bit Sigma-Delta ADC
Download  32 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD7739 数据表(HTML) 4 Page - Analog Devices

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AD7739
Data Sheet
Rev. A | Page 4 of 32
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
REFERENCE INPUTS
REFIN(+) to REFIN(−) Voltage1, 9
2.475
2.5
2.525
V
NOREF Trigger Voltage
0.5
V
NOREF bit in channel status register
REFIN(+), REFIN(−) Common-Mode/
Absolute Voltage1
0
AVDD
V
Reference Input DC Current10
400
μA
SYSTEM CALIBRATION1, 11
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
LOGIC INPUTS
Input Current
±1
μA
Input Current CS
±10
μA
CS = DVDD
−40
μA
CS = DGND, internal pull-up resistor
Input Capacitance
5
pF
VT+1
1.4
2
V
DVDD = 5 V
VT–1
0.8
1.4
V
DVDD = 5 V
VT+ – VT–1
0.3
0.85
V
DVDD = 5 V
VT+1
0.95
2
V
DVDD = 3 V
VT–1
0.4
1.1
V
DVDD = 3 V
VT+ – VT–1
0.3
0.85
V
DVDD = 3 V
MCLK IN ONLY
Input Current
±10
μA
Input Capacitance
5
pF
VINL Input Low Voltage
0.8
V
DVDD = 5 V
VINH Input High Voltage
3.5
V
DVDD = 5 V
VINL Input Low Voltage
0.4
V
DVDD = 3 V
VINH Input High Voltage
2.5
V
DVDD = 3 V
LOGIC OUTPUTS12
VOL Output Low Voltage
0.4
V
ISINK = 800 μA, DVDD = 5 V
VOH Output High Voltage
4.0
V
ISOURCE = 200 μA, DVDD = 5 V
VOL Output Low Voltage
0.4
V
ISINK = 100 μA, DVDD = 3 V
VOH Output High Voltage
DVDD − 0.6
V
ISOURCE = 100 μA, DVDD = 3 V
Floating State Leakage Current
±1
μA
Floating State Leakage Capacitance
3
pF
P0, P1 INPUTS/OUTPUTS
Levels referenced to analog supplies
Input Current
±10
μA
VINL Input Low Voltage
0.8
V
AVDD = 5 V
VINH Input High Voltage
3.5
V
AVDD = 5 V
VOL Output Low Voltage
0.4
V
ISINK = 8 mA, AVDD = 5 V
VOH Output High Voltage
4.0
V
ISOURCE = 200 μA, AVDD = 5 V


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