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AD7893ARZ-3 Fiches technique(PDF) 2 Page - Analog Devices

No de pièce AD7893ARZ-3
Description  LC2MOS 12-Bit, Serial 6 ms ADC in 8-Pin Package
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

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AD7893–SPECIFICATIONS
AB
S
Parameter
Versions
l
Versions
Version
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal to (Noise + Distortion) Ratio
2
@ +25
°C
70
70
70
dB min
fIN = 10 kHz Sine Wave, fSAMPLE = 117 kHz
Total Harmonic Distortion (THD)
2
–80
–80
–80
dB max
fIN = 10 kHz Sine Wave, fSAMPLE = 117 kHz
Peak Harmonic or Spurious Noise
2
–80
–80
–80
dB max
fIN = 10 kHz Sine Wave, fSAMPLE = 117 kHz
Intermodulation Distortion (IMD)
2
fa = 9 kHz, fb = 9.5 kHz, fSAMPLE = 117 kHz
2nd Order Terms
–80
–80
–80
dB max
3rd Order Terms
–80
–80
–80
dB max
DC ACCURACY
Resolution
12
12
12
Bits
Minimum Resolution for which
No Missing Codes are Guaranteed
12
12
12
Bits
Relative Accuracy
2
±1
±1/2
±1
LSB max
Differential Nonlinearity
2
±1
±1
±1
LSB max
Positive Full-Scale Error
2
±3
±1.5
±3
LSB max
AD7893-2, AD7893-5
Unipolar Offset Error
±4
±3
±4
LSB max
AD7893-10, AD7893-3
Negative Full-Scale Error
2
±3
±1.5
±3
LSB max
Bipolar Zero Error
±4
±2
±4
LSB max
ANALOG INPUT
AD7893-10
Input Voltage Range
±10
±10
±10
Volts
Input Resistance
16
16
16
k
Ω min
AD7893-3
Input Voltage Range
±2.5
±2.5
±2.5
Volts
Input Resistance
4
4
4
k
Ω min
AD7893-5
Input Voltage Range
0 to +5
0 to +5
0 to +5
Volts
Input Resistance
9
9
9
k
Ω min
AD7893-2
Input Voltage Range
0 to +2.5
0 to +2.5
0 to +2.5
Volts
Input Current
500
500
500
nA max
REFERENCE INPUT
REF IN Input Voltage Range
2.375/2.625
2.375/2.625
2.375/2.625
V min/V max 2.5 V
± 5%
Input Current
2
2
10
µA max
Input Capacitance
3
10
10
10
pF max
LOGIC INPUTS
Input High Voltage, VINH
2.4
2.4
2.4
V min
VDD = 5 V ± 5%
Input Low Voltage, VINL
0.8
0.8
0.8
V max
VDD = 5 V ± 5%
Input Current, IIN
±10
±10
±10
µA max
VIN = 0 V to VDD
Input Capacitance, CIN
3
10
10
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
4.0
4.0
4.0
V min
ISOURCE = 200 µA
Output Low Voltage, VOL
0.4
0.4
0.4
V max
ISINK = 1.6 mA
Output Coding
AD7893-10, AD7893-3
2s Complement
AD7893-2, AD7893-5
Straight (Natural) Binary
CONVERSION RATE
Conversion Time
6
6
6
µs max
Track/Hold Acquisition Time
2
1.5
1.5
1.5
µs max
POWER REQUIREMENTS
VDD
+5
+5
+5
V nom
±5% for Specified Performance
IDD
9
9
9
mA max
Power Dissipation
45
45
45
mW max
Typically 25 mW
NOTES
1Temperature Ranges are as follows: A, B Versions: –40
°C to +85°C, S Version: –55°C to +125°C.
2See Terminology.
3Sample tested @ +25
°C to ensure compliance.
Specifications subject to change without notice.
REV. E
–2–
(VDD = +5 V, AGND = DGND = 0 V, REF IN = +2.5 V. All specifications TMIN to TMAX unless
otherwise noted.)


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