AD7899 Ver la hoja de datos (PDF) - Analog Devices
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AD7899 Datasheet PDF : 16 Pages
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AD7899–SPECIFICATIONS (VDD = 5 V ؎ 5%, AGND = DGND = 0 V, VREF = Internal. Clock = Internal, all specifications
TMIN to TMAX and valid for VDRIVE = 3 V ؎ 5% and 5 V ؎ 5% unless otherwise noted.)
Parameter
A
Version1
B
Version1
S
Version1
Unit
Test Conditions/Comments
SAMPLE AND HOLD
–0.1 dB Full Power Bandwidth
500
500
500
kHz typ
–3 dB Full Power Bandwidth
4.5
4.5
4.5
MHz typ
Aperture Delay
20
20
20
ns max
Aperture Jitter
25
25
25
ps typ
DYNAMIC PERFORMANCE2
AD7899-1
fIN = 100 kHz, fS = 400 kSPS
Signal to (Noise + Distortion)
Ratio3 @ 25ЊC
78
78
78
dB min
TMIN to TMAX
78
78
77
dB min
Total Harmonic Distortion3
–84
–84
–82
dB max
Peak Harmonic or Spurious Noise3 –86
–86
–85
dB max
AD7899-2
Signal to (Noise + Distortion)
Ratio3 @ 25ЊC
78
dB min
TMIN to TMAX
77
Total Harmonic Distortion3
–82
dB min
dB max
Peak Harmonic or Spurious Noise3 –82
dB max
AD7899-3
Signal to (Noise + Distortion)
Ratio3 @ 25ЊC
78
78
dB min
TMIN to TMAX
77
77
Total Harmonic Distortion3
–84
–84
dB min
dB max
Peak Harmonic or Spurious Noise3 –86
–86
dB max
Intermodulation Distortion3
fa = 49 kHz, fb = 50 kHz
2nd Order Terms
–89
–89
–89
dB typ
3rd Order Terms
–89
–89
–89
dB typ
DC ACCURACY
Resolution
Relative Accuracy (INL)3
14
14
14
±2
± 1.5
±2
Differential Nonlinearity (DNL)3
±1
±1
±1
AD7899-1
Input Voltage Range
± 5, ± 10
± 5, ± 10
Input Current
0.8, 0.8
0.8, 0.8
Positive Gain Error3
Negative Gain Error3
± 10
±8
± 12
± 10
±8
± 12
Bipolar Zero Error
± 12
±8
± 12
AD7899-2
Input Voltage Range
0 to 2.5
0 to 5
Input Current
Positive Gain Error3
0.4, 800
± 14
Offset Error3
± 10
AD7899-3
Input Voltage Range
± 2.5
± 2.5
Input Current
0.8
0.8
Positive Gain Error3
Negative Gain Error3
± 14
± 12
± 14
± 12
Bipolar Zero Error
± 14
± 12
Bits
LSB max
LSB max
Volts
mA max
LSB max
LSB max
LSB max
Volts
µA max
LSB max
LSB max
Volts
mA max
LSB max
LSB max
LSB max
No Missing Codes Guaranteed
VIN = –5 V and –10 V Respectively
VIN = 2.5 V, VIN = 5 V
VIN = –2.5 V
REFERENCE INPUT/OUTPUT
VREF IN Input Voltage Range
VREF IN Input Capacitance4
VREF OUT Output Voltage
VREF OUT Error @ 25ЊC
VREF OUT Error TMIN to TMAX
VREF OUT Temperature Coefficient
VREF OUT Output Impedance
2.375/2.625
10
2.5
± 10
± 20
25
6
2.375/2.625
10
2.5
± 10
± 20
25
6
2.375/2.625
10
2.5
± 10
± 25
25
6
VMIN/VMAX
pF max
V nom
mV max
mV max
ppm/ЊC typ
kΩ typ
2.5 V ± 5%
See Reference Section
–2–
REV. A
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