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AD7992 Datasheet(Fiches technique) 2 Page - Analog Devices

Numéro de pièce AD7992
Description  2-Channel, 12-Bit ADC with I2C Compatible Interface in 10-Lead MSOP
Télécharger  21 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
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 2 page
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–2–
REV. PrH
AD7992–SPECIFICATIONS1
PRELIMINARYTECHNICAL DATA
(VDD = +2.7 V to +5.5 V, unless otherwise noted ; REFIN = 2.5 V; fSCL = 3.4 MHz unless
otherwise noted; TA = TMIN to TMAX, unless otherwise noted.)
Parameter
B Version
1
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
FIN = 10kHz Sine Wave
Signal to Noise + Distortion (SINAD)
2
70
dB min
Signal to Noise Ratio (SNR)
2
71
dB min
Total Harmonic Distortion (THD)
2
-78
dB typ
Peak Harmonic or Spurious Noise (SFDR)
2
-80
dB typ
Intermodulation Distortion (IMD)
2
fa = TBD kHz, fb = TBD kHz
Second Order Terms
-78
dB typ
Third Order Terms
-78
dB typ
Aperture Delay
10
ns
max
Aperture Jitter
10
ps typ
Channel-to-Channel Isolation
T B D
dB typ
FIN = TBD kHz
Full Power Bandwidth
T B D
kHz typ
@ 3 dB
T B D
kHz typ
@ 0.1 dB
DC ACCURACY
Resolution
12
Bits
Integral Nonlinearity
2
± 1
LSB max
±0.6
LSB typ
Differential Nonlinearity
2
+1.5/-0.9
LSB max
Guaranteed No Missed Codes to 12
±0.75
LSB typ
Bits.
Offset Error2
±1.5
LSB max
Single Channel Mode
Offset Error
2
±1.5
LSB max
Dual Channel Mode
Offset Error Match
2
±0.5
LSB max
Gain Error2
±1.5
LSB max
Single Channel Mode
Gain Error
2
± 2
LSB max
Dual Channel Mode
Gain Error Match
2
±0.5
LSB max
ANALOG INPUT
Input Voltage Ranges
0 to
REFIN
Volts
DC Leakage Current
± 1
µA max
Input Capacitance
30
pF typ
REFERENCE INPUT
REFIN Input Voltage Range
1.2 to VDD
V min/Vmax
DC Leakage Current
± 1
µA max
Input Capacitance
T B D
pF max
Input Impedance
T B D
k
typ
LOGIC INPUTS (SDA, SCL)
Input High Voltage, VINH
0.7(VDD)
V min
Input Low Voltage, VINL
0.3(VDD)
V max
Input Leakage Current, IIN
± 1
µA max
VIN = 0 V or VDD
Input Capacitance, CIN
2,3
10
pF max
Input Hysteresis, VHYST
0.1(VDD)
V min
LOGIC INPUTS (
CONVST)
Input High Voltage, VINH
2.4
V min
VDD = 5V
2.0
V min
VDD = 3V
Input Low Voltage, VINL
0.8
V max
VDD = 5V
0.4
V max
VDD = 3V
Input Leakage Current, IIN
± 1
µA max
VIN = 0V or VDD
Input Capacitance, CIN
10
pF max
LOGIC OUTPUTS (OPEN DRAIN)
Output Low Voltage, VOL
0.4
V max
ISINK = 3mA
0.6
V max
ISINK = 6mA
Floating-State Leakage Current
± 1
µA max
Floating-State Output Capacitance
2,3
T B D
pF max
Output Coding
Straight (Natural) Binary




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