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AD7865 Folha de dados(PDF) 3 Page - Analog Devices

Nome de Peças AD7865
Descrição Electrónicos  Four-Channel, Simultaneous Sampling, Fast, 14-Bit ADC
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

AD7865 Folha de dados(HTML) 3 Page - Analog Devices

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REV. B
–3–
AD7865
Parameter
A, Y Versions
1
B Version
Unit
Test Conditions/Comments
REFERENCE INPUT/OUTPUT
VREF IN Input Voltage Range
2.375/2.625
2.375/2.625
VMIN/VMAX
2.5 V
± 5%
VREF IN Input Capacitance
6
10
10
pF max
VREF OUT Output Voltage
2.5
2.5
V nom
VREF OUT Error @ 25
°C
±10
±10
mV max
VREF OUT Error TMIN to TMAX
±20
±20
mV max
VREF OUT Temperature Coefficient
25
25
ppm/
°C typ
VREF OUT Output Impedance
6
6
k
Ω typ
See Reference Section
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
6
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
DB13–DB0
High Impedance
Leakage Current
±10
±10
µA max
Capacitance
6
10
10
pF max
Output Coding
AD7865-1, AD7865-3
Two’s Complement
AD7865-2
Straight (Natural) Binary
CONVERSION RATE
Conversion Time
2.4
2.4
µs max
For Single Channel
Track/Hold Acquisition Time
2, 3
0.35
0.35
µs max
Throughput Time
350
350
kSPS max
For Single Channel
100
100
kSPS max
For All Four Channels
POWER REQUIREMENTS
VDD
5
5
V nom
±5% for Specified Performance
IDD
AD7865-1
Typically 23 mA, Logic Inputs = 0 V or VDD
Normal Mode
32
32
mA max
Standby Mode
20
20
µA max
AD7865-2
Typically 20 mA, Logic Inputs = 0 V or VDD
Normal Mode
30
30
mA max
Standby Mode
20
20
µA max
AD7865-3
Typically 23 mA, Logic Inputs = 0 V or VDD
Normal Mode
32
32
mA max
Standby Mode
20
20
µA max
Power Dissipation
AD7865-1
Normal Mode
160
160
mW max
Typically 115 mW. VDD = 5 V
Standby Mode
100
100
µW max
Typically 15
µW
AD7865-2
Normal Mode
150
150
mW max
Typically 100 mW. VDD = 5 V
Standby Mode
100
100
µW max
Typically 15
µW
AD7865-3
Normal Mode
160
160
mW max
Typically 115 mW. VDD = 5 V
Standby Mode
100
100
µW max
Typically 15
µW
NOTES
1Temperature ranges are as follows : A, B Versions: –40
°C to +85°C, Y Version: –40°C to +105°C.
2Performance measured through full channel (SHA and ADC).
3See Terminology.
4Total Harmonic Distortion and Peak Harmonic or Spurious Noise are specified at –83 dBs for the AD7865-2.
5Measured between any two channels with the other two channels grounded.
6Sample tested @ 25
°C to ensure compliance.
Specifications subject to change without notice.


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