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AD7864AS-2 датащи(PDF) 2 Page - Analog Devices

номер детали AD7864AS-2
подробное описание детали  4-Channel, Simultaneous Sampling, High Speed, 12-Bit ADC
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD7864AS-2 датащи(HTML) 2 Page - Analog Devices

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–2–
REV. A
AD7864–SPECIFICATIONS
(VDD = +5 V
5%, AGND = DGND = 0 V, VREF = Internal. Clock = Internal; all specifi-
cations TMIN to TMAX unless otherwise noted.)
Parameter
A Version1
B Version
Units
Test Conditions/Comments
SAMPLE AND HOLD
–3 dB Full Power Bandwidth
3
3
MHz typ
Aperture Delay
20
20
ns max
Aperture Jitter
50
50
ps typ
Aperture Delay Matching
4
4
ns max
DYNAMIC PERFORMANCE2
fIN = 100.0 kHz, fS = 500 kSPS
Signal to (Noise + Distortion) Ratio3
@ +25
°C
70
72
dB min
TMIN to TMAX
70
70
dB min
Total Harmonic Distortion3
–80
–80
dB max
Peak Harmonic or Spurious Noise3
–80
–80
dB max
Intermodulation Distortion3
fa = 49 kHz, fb = 50 kHz
2nd Order Terms
–80
–80
dB typ
3rd Order Terms
–80
–80
dB typ
Channel-to-Channel Isolation3
–80
–80
dB max
fIN = 50 kHz Sine Wave
DC ACCURACY
Any Channel
Resolution
12
12
Bits
Relative Accuracy
3
±1
±1/2
LSB max
Differential Nonlinearity
3
±0.9
±0.9
LSB max
No Missing Codes
AD7864-1
Positive Gain Error
3
±3
±3LSB max
Positive Gain Error Match
3
3
±3LSB max
Negative Gain Error
3
±3
±3LSB max
Negative Gain Error Match
3
3
±3LSB max
Bipolar Zero Error
±4
±3LSB max
Bipolar Zero Error Match
2
±2LSB max
AD7864-3
Positive Gain Error
3
±3LSB max
Positive Gain Error Match
3
2LSB max
Negative Gain Error
3
±3LSB max
Negative Gain Error Match
3
2LSB max
Bipolar Zero Error
±3LSB max
Bipolar Zero Error Match
2
LSB max
AD7864-2
Positive Gain Error
3
±3LSB max
Positive Gain Error Match
3
3LSB max
Unipolar Offset Error
±3LSB max
Unipolar Offset Error Match
2
LSB max
ANALOG INPUTS
AD7864-1
Input Voltage Range
±5, ±10
±5, ±10
Volts
Input Resistance
9, 18
9, 18
k
Ω min
AD7864-3
Input Voltage Range
±2.5
±2.5
Volts
Input Resistance
4.5
4.5
k
Ω min
AD7864-2
Input Voltage Range
+2.5, +5
+2.5, +5
Volts
Input Current (0 V–2.5 V Option)
±100
±100
nA max
Input Resistance (0 V–5 V Option)
9
9
k
Ω min
REFERENCE INPUT/OUTPUT
VREF IN Input Voltage Range
2.375/2.625
2.375/2.625
VMIN/VMAX
2.5 V
± 5%
VREF IN Input Capacitance
4
10
10
pF max
VREF OUT Output Voltage
2.5
2.5
V nom
VREF OUT Error @ +25°C
±10
±10
mV max
VREF OUT Error TMIN to TMAX
±20
±20
mV max
VREF OUT Temperature Coefficient
25
25
ppm/
°C typ
VREF OUT Output Impedance
6
6
k
Ω typ
See Reference Section


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