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參數資料
| 型號： | AD7862SQ-10 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | Simultaneous Sampling Dual 250 kSPS 12-Bit ADC |
| 中文描述： | 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, CDIP28 |
| 封裝： | CERDIP-28 |
| 文件頁數： | 2/16頁 |
| 文件大小： | 414K |
| 代理商： | AD7862SQ-10 |
–2–
REV. 0
AD7862–SPECIFICATIONS
A
Version
1
B
Version
S
Version
Parameter
Units
Test Conditions/Comments
SAMPLE AND HOLD
–3 dB Small Signal Bandwidth
Aperture Delay
Aperture Jitter
Aperture Delay Matching
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
3
20
100
200
3
20
100
200
3
20
100
200
MHz typ
ns typ
ps typ
ps typ
f
IN
= 100.0 kHz, f
S
= 250 kSPS
70
70
–78
–85
71
70
–78
–85
70
70
–78
–85
dB min
dB min
dB max
dB typ
fa = 49 kHz, fb = 50 kHz
–85
–85
–80
–85
–85
–80
–85
–85
–80
dB typ
dB typ
dB max
f
IN
= 100 kHz Sine Wave
Any Channel
DC ACCURACY
Resolution
Minimum Resolution for which
No Missing Codes are Guaranteed
Relative Accuracy
3
Differential Nonlinearity
3
Positive Gain Error
3
Positive Gain Error Match
3
AD7862-10
Negative Gain Error
3
Bipolar Zero Error
Bipolar Zero Error Match
AD7862-3
Negative Gain Error
3
Bipolar Zero Error
Bipolar Zero Error Match
AD7862-2
Unipolar Offset Error
Unipolar Offset Error Match
12
12
12
Bits
12
±
1
±
1
±
4
4
12
±
1
±
1
±
3
3
12
±
1
±
1
±
4
4
Bits
LSB max
LSB max
LSB max
LSB max
Typically 0.4 LSB
±
4
±
4
4
±
3
±
3
3
±
4
±
4
4
LSB max
LSB max
LSB max
±
4
±
4
4
±
3
±
3
3
±
4
±
4
4
LSB max
LSB max
LSB max
+4
4
+3
3.5
+4
4
LSB max
LSB max
ANALOG INPUTS
AD7862-10
Input Voltage Range
Input Resistance
AD7862-3
Input Voltage Range
Input Resistance
AD7862-2
Input Voltage Range
Input Current
±
10
24
±
10
24
±
10
24
Volts
k
min
Input
±
2.5
6
±
2.5
6
±
2.5
6
Volts
k
min
Input
+2.5
500
+2.5
500
+2.5
500
Volts
nA max
Input
REFERENCE INPUT/OUTPUT
REF IN Input Voltage Range
REF IN Input Capacitance
4
REF OUT Output Voltage
REF OUT Error @ +25
°
C
REF OUT Error T
MIN
to T
MAX
REF OUT Temperature Coefficient
REF OUT Output Impedance
2.375/2.625 2.375/2.625
10
2.5
±
10
±
25
25
2
2.375/2.625
10
2.5
±
10
±
25
25
2
V min/V max 2.5 V
±
5%
pF max
V nom
mV max
mV max
ppm/
°
C typ
k
nom
10
2.5
±
10
±
25
25
2
LOGIC INPUTS
Input High Voltage, V
INH
Input Low Voltage, V
INL
Input Current, I
IN
Input Capacitance, C
IN4
2.4
0.8
±
10
10
2.4
0.8
±
10
10
2.4
0.8
±
10
10
V min
V max
μ
A max
pF max
V
DD
= 5 V
±
5%
V
DD
= 5 V
±
5%
(V
DD
= +5 V
6
5%, AGND = DGND = 0 V, REF = Internal. All Specifications T
MIN
to T
MAX
unless otherwise noted.)
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