AD7923 Ver la hoja de datos (PDF) - Analog Devices
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AD7923 Datasheet PDF : 24 Pages
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AD7923
Parameter
LOGIC OUTPUTS
Output High Voltage, VOH
Output Low Voltage, VOL
Floating-State Leakage Current
Floating-State Output Capacitance3
Output Coding
CONVERSION RATE
Conversion Time
Track-and-Hold Acquisition Time
Throughput Rate
POWER REQUIREMENTS
AVDD
VDRIVE
IDD 4
During Conversion
Normal Mode (Static)
Normal Mode (Operational) fSAMPLE = 200 kSPS
Using Auto Shutdown Mode fSAMPLE = 200 kSPS
Auto Shutdown (Static)
Full Shutdown Mode
Power Dissipation4
Normal Mode (Operational) fSAMPLE = 200 kSPS
Auto Shutdown (Static)
Full Shutdown Mode
B Version1
VDRIVE – 0.2
0.4
±1
10
Twos Complement
Straight (Natural)
Binary
800
300
300
200
2.7/5.25
2.7/5.25
2.7
2.0
600
1.5
1.2
900
650
0.5
0.5
7.5
3.6
2.5
1.5
2.5
1.5
Unit
V min
V max
μA max
pF max
ns max
ns max
ns max
kSPS max
V min/max
V min/max
mA max
mA max
μA typ
mA max
mA max
μA typ
μA typ
μA max
μA max
mW max
mW max
μW max
μW max
μW max
μW max
Test Conditions/Comments
ISOURCE = 200 μA, AVDD = 2.7 V to 5.25 V
ISINK = 200 μA
Coding bit set to 0
Coding bit set to 1
16 SCLK cycles with SCLK at 20 MHz
Sinewave input
Full-scale step Input
See Serial Interface section
Digital I/Ps = 0 V or VDRIVE
AVDD = 4.75 V to 5.25 V, fSCLK = 20 MHz
AVDD = 2.7 V to 3.6 V, fSCLK = 20 MHz
AVDD = 2.7 V to 5.25 V, SCLK on or off
AVDD = 4.75 V to 5.25 V, fSCLK = 20 MHz
AVDD = 2.7 V to 3.6 V, fSCLK = 20 MHz
AVDD = 4.75 V to 5.25 V, fSAMPLE = 200 kSPS
AVDD = 2.7 V to 3.6 V, fSAMPLE = 200 kSPS
SCLK on or off (20 nA typ)
SCLK on or off (20 nA typ)
AVDD = 5 V, fSCLK = 20 MHz
AVDD = 3 V, fSCLK = 20 MHz
AVDD = 5 V
AVDD = 3 V
AVDD = 5 V
AVDD = 3 V
1 Temperature range: B Version: −40°C to +125°C.
2 See Terminology section.
3 Sample tested @ 25°C to ensure compliance.
4 See Power vs. Throughput Rate section.
Rev. C | Page 4 of 24
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