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AD7490 датащи(PDF) 4 Page - Analog Devices

номер детали AD7490
подробное описание детали  16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD7490 датащи(HTML) 4 Page - Analog Devices

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AD7490
Data Sheet
Rev. D | Page 4 of 28
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
LOGIC INPUTS
Input High Voltage, VINH
0.7 × VDRIVE
V
Input Low Voltage, VINL
0.3 × VDRIVE
V
Input Current, IIN
VIN = 0 V or VDRIVE
±0.01
±1
µA
Input Capacitance, CIN+3
10
pF
LOGIC OUTPUTS
Output High Voltage, VOH
ISOURCE = 200 µA; VDD = 2.7 V to 5.25 V
VDRIVE − 0.2
V
Output Low Voltage, VOL
ISINK = 200 µA
0.4
V
Floating State Leakage Current
WEAK/TRI bit set to 0
±10
µA
Floating State Output Capacitance3
WEAK/TRI bit set to 0
10
pF
Output Coding
Coding bit set to 1
Straight (Natural) Binary
Coding bit set to 0
Twos Complement
CONVERSION RATE
Conversion Time
16 SCLK cycles, SCLK = 20 MHz
800
ns
Track-and-Hold Acquisition Time2
Sine wave input
300
ns
Full-scale step input
300
ns
Throughput Rate
VDD = 5 V (see the Serial Interface
section)
1
MSPS
POWER REQUIREMENTS
VDD
2.7
5.25
V
VDRIVE
2.7
5.25
V
IDD4
Digital inputs = 0 V or VDRIVE
Normal Mode (Static)
VDD = 2.7 V to 5.25 V, SCLK on or off
600
µA
Normal Mode (Operational)
VDD = 4.75 V to 5.25 V, fSCLK = 20 MHz
2.5
mA
(fS = Maximum Throughput)
VDD = 2.7 V to 3.6 V, fSCLK = 20 MHz
1.8
mA
Auto Standby Mode
fSAMPLE = 500 kSPS
1.55
mA
Static
100
µA
Auto Shutdown Mode
fSAMPLE = 250 kSPS
960
µA
Static
0.5
µA
Full Shutdown Mode
SCLK on or off
0.02
0.5
µA
Power Dissipation4
Normal Mode (Operational)
VDD = 5 V, fSCLK = 20 MHz
12.5
mW
VDD = 3 V, fSCLK = 20 MHz
5.4
mW
Auto Standby Mode (Static)
VDD = 5 V
460
µW
VDD = 3 V
276
µW
Auto Shutdown Mode (Static)
VDD = 5 V
2.5
µW
VDD = 3 V
1.5
µW
Full Shutdown Mode
VDD = 5 V
2.5
µW
VDD = 3 V
1.5
µW
1
Specifications apply for fSCLK up to 20 MHz. However, for serial interfacing requirements, see the Timing Specifications section.
2
See the Terminology section.
3
Guaranteed by characterization.
4
See the Power vs. Throughput Rate section.


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