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參數資料
| 型號： | AD7675AST |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 16-Bit, 100 kSPS, Differential ADC |
| 中文描述： | 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP48 |
| 封裝： | 1.40 MM HEIGHT, PLASTIC, MS-026BBC, LQFP-48 |
| 文件頁數： | 2/20頁 |
| 文件大小： | 399K |
| 代理商： | AD7675AST |
REV. 0
–2–
AD7675–SPECIFICATIONS
Parameter
Conditions
Min
Typ
Max
Unit
RESOLUTION
ANALOG INPUT
Voltage Range
Operating Input Voltage
Analog Input CMRR
Input Current
Input Impedance
THROUGHPUT SPEED
Complete Cycle
Throughput Rate
DC ACCURACY
Integral Linearity Error
No Missing Codes
Transition Noise
+Full-Scale Error
2
–Full-Scale Error
2
Zero Error
Power Supply Sensitivity
AC ACCURACY
Signal-to-Noise
16
Bits
V
IN+
– V
IN–
V
IN+,
V
IN–
to AGND
f
100 kSPS Throughput
–V
REF
–0.1
+V
REF
+3
V
V
dB
μ
A
79
1
See Analog Input Section
10
100
μ
s
kSPS
0
–1.5
16
+1.5
LSB
1
Bits
LSB
LSB
LSB
LSB
LSB
0.35
–22
–22
–8
+22
+22
+8
AVDD = 5 V
±
5%
±
0.5
f
IN
= 20 kHz
f
IN
= 45 kHz
f
IN
= 20 kHz
f
IN
= 45 kHz
f
IN
= 20 kHz
f
IN
= 45 kHz
f
IN
= 20 kHz
f
IN
= 45 kHz
f
IN
= 45 kHz, –60 dB Input
92
94
94
110
110
–110
–110
94
94
34
3.9
dB
3
dB
3
dB
3
dB
3
dB
3
dB
3
dB
3
dB
3
dB
3
MHz
Spurious Free Dynamic Range
104.5
Total Harmonic Distortion
–103.5
Signal-to-(Noise+Distortion)
92
–3 dB Input Bandwidth
SAMPLING DYNAMICS
Aperture Delay
Aperture Jitter
Transient Response
REFERENCE
External Reference Voltage Range
External Reference Current Drain
DIGITAL INPUTS
Logic Levels
V
IL
V
IH
I
IL
I
IH
DIGITAL OUTPUTS
Data Format
Pipeline Delay
V
OL
V
OH
POWER SUPPLIES
Specified Performance
AVDD
DVDD
OVDD
Operating Current
AVDD
DVDD
4
OVDD
4
Power Dissipation
4
2
5
ns
ps rms
μ
s
Full-Scale Step
8.75
2.3
2.5
35
AVDD – 1.85
V
μ
A
100 kSPS Throughput
–0.3
+2.0
–1
–1
+0.8
DVDD + 0.3
+1
+1
V
V
μ
A
μ
A
Parallel or Serial 16-Bit Conversion Results Available
Immediately After Completed Conversion
I
SINK
= 1.6 mA
I
SOURCE
= –100
μ
A
0.4
V
V
OVDD – 0.6
4.75
4.75
2.7
5
5
5.25
5.25
5.25
V
V
V
300 kSPS Throughput
3
750
7.5
17
15
mA
μ
A
μ
A
mW
μ
W
μ
W
100 kSPS Throughput
100 SPS Throughput
25
In Power-Down Mode
5
TEMPERATURE RANGE
6
Specified Performance
7
T
MIN
to T
MAX
–40
+85
°
C
NOTES
1
LSB means Least Significant Bit. With the
±
2.5 V input range, one LSB is 76.3
μ
V.
2
See Definition of Specifications section. These specifications do not include the error contribution from the external reference.
3
All specifications in dB are referred to a full-scale input FS. Tested with an input signal at 0.5 dB below full-scale unless otherwise specified.
4
Tested in parallel reading mode.
5
With all digital inputs forced to OVDD or OGND respectively.
6
Contact factory for extended temperature range.
Specifications subject to change without notice.
(–40 C to +85 C, AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted.)
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