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參數資料
| 型號： | AD7893SQ-5 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | LC2MOS 12-Bit, Serial 6 us ADC in 8-Pin Package |
| 中文描述： | 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, CDIP8 |
| 封裝： | MINI, HERMETIC SEALED, CERDIP-8 |
| 文件頁數： | 2/12頁 |
| 文件大小： | 340K |
| 代理商： | AD7893SQ-5 |
AD7893–SPECIFICATIONS
A
Versions
l
B
Versions
S
Version
Parameter
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal to (Noise + Distortion) Ratio
2
@ +25
°
C
Total Harmonic Distortion (THD)
2
Peak Harmonic or Spurious Noise
2
Intermodulation Distortion (IMD)
2
2nd Order Terms
3rd Order Terms
70
–80
–80
70
–80
–80
70
–80
–80
dB min
dB max
dB max
f
IN
= 10 kHz Sine Wave, f
SAMPLE
= 117 kHz
f
IN
= 10 kHz Sine Wave, f
SAMPLE
= 117 kHz
f
IN
= 10 kHz Sine Wave, f
SAMPLE
= 117 kHz
fa = 9 kHz, fb
=
9.5 kHz, f
SAMPLE
= 117 kHz
–80
–80
–80
–80
–80
–80
dB max
dB max
DC ACCURACY
Resolution
Minimum Resolution for which
No Missing Codes are Guaranteed
Relative Accuracy
2
Differential Nonlinearity
2
Positive Full-Scale Error
2
AD7893-2, AD7893-5
Unipolar Offset Error
AD7893-10, AD7893-3
Negative Full-Scale Error
2
Bipolar Zero Error
12
12
12
Bits
12
±
1
±
1
±
3
12
±
1/2
±
1
±
1.5
12
±
1
±
1
±
3
Bits
LSB max
LSB max
LSB max
±
4
±
3
±
4
LSB max
±
3
±
4
±
1.5
±
2
±
3
±
4
LSB max
LSB max
ANALOG INPUT
AD7893-10
Input Voltage Range
Input Resistance
AD7893-3
Input Voltage Range
Input Resistance
AD7893-5
Input Voltage Range
Input Resistance
AD7893-2
Input Voltage Range
Input Current
±
10
16
±
10
16
±
10
16
Volts
k
min
±
2.5
4
±
2.5
4
±
2.5
4
Volts
k
min
0 to +5
9
0 to +5
9
0 to +5
9
Volts
k
min
0 to +2.5
500
0 to +2.5
500
0 to +2.5
500
Volts
nA max
REFERENCE INPUT
REF IN Input Voltage Range
Input Current
Input Capacitance
3
2.375/2.625
2
10
2.375/2.625
2
10
2.375/2.625
10
10
V min/V max 2.5 V
±
5%
μ
A max
pF max
LOGIC INPUTS
Input High Voltage, V
INH
Input Low Voltage, V
INL
Input Current, I
IN
Input Capacitance, C
IN3
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
IN
= 0 V to V
DD
LOGIC OUTPUTS
Output High Voltage, V
OH
Output Low Voltage, V
OL
Output Coding
AD7893-10, AD7893-3
AD7893-2, AD7893-5
4.0
0.4
4.0
0.4
4.0
0.4
V min
V max
I
SOURCE
= 200
μ
A
I
SINK
= 1.6 mA
2s Complement
Straight (Natural) Binary
CONVERSION RATE
Conversion Time
Track/Hold Acquisition Time
2
6
1.5
6
1.5
6
1.5
μ
s max
μ
s max
POWER REQUIREMENTS
V
DD
I
DD
Power Dissipation
+5
9
45
+5
9
45
+5
9
45
V nom
mA max
mW max
±
5% for Specified Performance
Typically 25 mW
NOTES
1
Temperature Ranges are as follows: A, B Versions: –40
°
C to +85
°
C, S Version: –55
°
C to +125
°
C.
2
See Terminology.
3
Sample tested @ +25
°
C to ensure compliance.
Specifications subject to change without notice.
REV. E
–2–
(V
DD
= +5 V, AGND = DGND = 0 V, REF IN = +2.5 V. All specifications T
MIN
to T
MAX
unless
otherwise noted.)
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| AD7893 | 14-Bit 50 kSPS ADC Ser. Out, 1.8V Operation 8-MSOP |
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| AD7893BR | Ultralow Power Quad Comparators with Reference; Package: PDIP; No of Pins: 16; Temperature Range: -40°C to +85°C |
| AD7893SQ | Ultralow Power Quad Comparators with Reference; Package: SO; No of Pins: 16; Temperature Range: -40°C to +85°C |
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