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AD7864 Datasheet(PDF) 3 Page - Analog Devices

No. de Pieza. AD7864
Descripción  4-Channel, Simultaneous Sampling, High Speed, 12-Bit ADC
Descarga  19 Pages
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Fabricante  AD [Analog Devices]
Página de inicio  http://www.analog.com
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AD7864 Datasheet(HTML) 3 Page - Analog Devices

 
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–3–
REV. A
AD7864
Parameter
A Version
1
B Version
Units
Test Conditions/Comments
LOGIC INPUTS
Input High Voltage, VINH
2.4
2.4
V min
VDD = 5 V ± 5%
Input Low Voltage, VINL
0.8
0.8
V max
VDD = 5 V ± 5%
Input Current, IIN
±10
±10
µA max
Input Capacitance, CIN
4
10
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
4.0
4.0
V min
ISOURCE = 400
µA
Output Low Voltage, VOL
0.4
0.4
V max
ISINK = 1.6 mA
DB11–DB0
High Impedance
Leakage Current
±10
±10
µA max
Capacitance
4
10
10
pF max
Output Coding
AD7864-1, AD7864-3
Twos Complement
AD7864-2
Straight (Natural) Binary
CONVERSION RATE
Conversion Time
1.65
1.65
µs max
For One Channel
Track/Hold Acquisition Time2, 3
0.35
0.35
µs max
Throughput Time
130
130
kSPS max
For All Four Channels
POWER REQUIREMENTS
VDD
+5
+5
V nom
±5% for Specified Performance
IDD
(5
µA typ) Logic Inputs = 0 V or V
DD
Normal Mode
24
24
mA max
Standby Mode
20
20
µA max
Typically 4
µA
Power Dissipation
Normal Mode
120
120
mW max
Typically 90 mW
Standby Mode
100
100
µW max
Typically 20
µW
NOTES
1Temperature ranges are as follows: A, B Versions: –40
°C to +85°C. Note: The A Version is fully specified up to +105°C with degraded INL and DNL specifications
of
± 2 LSBs max.
2Performance measured through full channel (SHA and ADC).
3See Terminology.
4Sample tested @ +25
°C to ensure compliance.
Specifications subject to change without notice.


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