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參數資料
| 型號： | AD7864BS-1 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | SWITCH SLIDE DP3T RT ANG L=6MM |
| 中文描述： | 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQFP44 |
| 封裝： | PLASTIC, MO-112-AA, MQFP-44 |
| 文件頁數： | 2/19頁 |
| 文件大小： | 214K |
| 代理商： | AD7864BS-1 |
–2–
REV. A
AD7864–SPECIFICATIONS
Parameter
(V
DD
= +5 V
6
5%, AGND = DGND = 0 V, V
REF
= Internal. Clock = Internal; all specifi-
cations T
MIN
to T
MAX
unless otherwise noted.)
A Version
1
B Version
Units
Test Conditions/Comments
SAMPLE AND HOLD
–3 dB Full Power Bandwidth
Aperture Delay
Aperture Jitter
Aperture Delay Matching
3
20
50
4
3
20
50
4
MHz typ
ns max
ps typ
ns max
DYNAMIC PERFORMANCE
2
Signal to (Noise + Distortion) Ratio
3
@ +25
°
C
T
MIN
to T
MAX
Total Harmonic Distortion
3
Peak Harmonic or Spurious Noise
3
Intermodulation Distortion
3
2nd Order Terms
3rd Order Terms
Channel-to-Channel Isolation
3
f
IN
= 100.0 kHz, f
S
= 500 kSPS
70
70
–80
–80
72
70
–80
–80
dB min
dB min
dB max
dB max
fa = 49 kHz, fb = 50 kHz
–80
–80
–80
–80
–80
–80
dB typ
dB typ
dB max
f
IN
= 50 kHz Sine Wave
DC ACCURACY
Resolution
Relative Accuracy
3
Differential Nonlinearity
3
AD7864-1
Positive Gain Error
3
Positive Gain Error Match
3
Negative Gain Error
3
Negative Gain Error Match
3
Bipolar Zero Error
Bipolar Zero Error Match
AD7864-3
Positive Gain Error
3
Positive Gain Error Match
3
Negative Gain Error
3
Negative Gain Error Match
3
Bipolar Zero Error
Bipolar Zero Error Match
AD7864-2
Positive Gain Error
3
Positive Gain Error Match
3
Unipolar Offset Error
Unipolar Offset Error Match
Any Channel
12
±
1
±
0.9
12
±
1/2
±
0.9
Bits
LSB max
LSB max
No Missing Codes
±
3
3
±
3
3
±
4
2
±
3
±
3
±
3
±
3
±
3
±
2
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
±
3
2
±
3
2
±
3
2
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
±
3
3
±
3
2
LSB max
LSB max
LSB max
LSB max
ANALOG INPUTS
AD7864-1
Input Voltage Range
Input Resistance
AD7864-3
Input Voltage Range
Input Resistance
AD7864-2
Input Voltage Range
Input Current (0 V–2.5 V Option)
Input Resistance (0 V–5 V Option)
±
5,
±
10
9, 18
±
5,
±
10
9, 18
Volts
k
min
±
2.5
4.5
±
2.5
4.5
Volts
k
min
+2.5, +5
±
100
9
+2.5, +5
±
100
9
Volts
nA max
k
min
REFERENCE INPUT/OUTPUT
V
REF
IN Input Voltage Range
V
REF
IN Input Capacitance
4
V
REF
OUT Output Voltage
V
REF
OUT Error @ +25
°
C
V
REF
OUT Error T
MIN
to T
MAX
V
REF
OUT Temperature Coefficient
V
REF
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
V
MIN
/V
MAX
pF max
Vnom
mV max
mV max
ppm/
°
C typ
k
typ
2.5 V
±
5%
See Reference Section
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