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參數(shù)資料
| 型號： | AD7910 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 250 kSPS, 10-/12-Bit ADCs in 6-Lead SC70 |
| 中文描述： | 250 kSPS的，10-/12-Bit模數(shù)轉(zhuǎn)換器6引腳SC70 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大小： | 1091K |
| 代理商： | AD7910 |
REV. B
AD7910/AD7920
–3–
AD7920–SPECIFICATIONS
1
(V
= 2.35 V to 5.25 V, f
SCLK
= 5 MHz, f
SAMPLE
= 250 kSPS, T
A
= T
MIN
to T
MAX
, unless
otherwise noted.)
Parameter
A Grade
1, 2
B Grade
1, 2
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal-to-Noise + Distortion (SINAD)
3
f
IN
= 100 kHz Sine Wave
V
DD
= 2.35 V to 3.6 V, T
A
= 25
∞
C
V
DD
= 2.4 V to 3.6 V
V
DD
= 2.35 V to 3.6 V
V
DD
= 4.75 V to 5.25 V, T
A
= 25
∞
C
V
DD
= 4.75 V to 5.25 V
V
DD
= 2.35 V to 3.6 V, T
A
= 25
∞
C
V
DD
= 2.4 V to 3.6 V
V
DD
= 4.75 V to 5.25 V, T
A
= 25
∞
C
V
DD
= 4.75 V to 5.25 V
70
69
71.5
69
68
71
70
70
69
–80
70
69
71.5
69
68
71
70
70
69
–80
–82
dB min
dB min
dB typ
dB min
dB min
dB min
dB min
dB min
dB min
dB typ
dB typ
Signal-to-Noise Ratio (SNR)
3
Total Harmonic Distortion (THD)
3
Peak Harmonic or Spurious Noise (SFDR)
3
–82
Intermodulation Distortion (IMD)
3
Second-Order Terms
Third-Order Terms
Aperture Delay
Aperture Jitter
Full Power Bandwidth
–84
–84
10
30
13.5
2
–84
–84
10
30
13.5
2
dB typ
dB typ
ns typ
ps typ
MHz typ
MHz typ
fa = 100.73 kHz, fb = 90.72 kHz
fa = 100.73 kHz, fb = 90.72 kHz
@ 3 dB
@ 0.1 dB
B Grade
4
DC ACCURACY
Resolution
Integral Nonlinearity
3
12
12
±
1.5
Bits
LSB max
LSB typ
LSB max
LSB typ
LSB max
LSB typ
LSB max
LSB typ
LSB max
±
0.75
Differential Nonlinearity
–0.9/+1.5
Guaranteed No Missed Codes to 12 Bits
±
0.75
Offset Error
3, 5
±
1.5
±
0.2
±
1.5
±
0.5
±
2
±
1.5
Gain Error
3, 5
±
1.5
Total Unadjusted Error (TUE)
3,5
ANALOG INPUT
Input Voltage Ranges
DC Leakage Current
Input Capacitance
0 to V
DD
±
0.5
20
0 to V
DD
±
0.5
20
V
m
A max
pF typ
Track-and-Hold in Track, 6 pF Typ when in Hold
LOGIC INPUTS
Input High Voltage, V
INH
2.4
1.8
0.8
0.4
±
0.5
±
10
5
2.4
1.8
0.8
0.4
±
0.5
±
10
5
V min
V min
V max
V max
m
A max
nA typ
pF max
V
DD
= 2.35 V
V
DD
= 3.6 V to 5.25 V
V
DD
= 2.35 V to 3.6 V
Typically 10 nA, V
IN
= 0 V or V
DD
Input Low Voltage, V
INL
Input Current, I
IN
, SCLK Pin
Input Current, I
IN
,
CS
Pin
Input Capacitance, C
IN6
LOGIC OUTPUTS
Output High Voltage, V
OH
Output Low Voltage, V
OL
Floating-State Leakage Current
Floating-State Output Capacitance
6
Output Coding
V
DD
– 0.2
0.4
±
1
5
Straight (Natural) Binary
V
DD
– 0.2
0.4
±
1
5
V min
V max
m
A max
pF max
I
SOURCE
= 200
m
A, V
DD
= 2.35 V to 5.25 V
I
SINK
= 200
m
A
CONVERSION RATE
Conversion Time
Track-and-Hold Acquisition Time
3
Throughput Rate
3.2
250
250
3.2
250
250
m
s max
ns max
kSPS max
16 SCLK Cycles with SCLK at 5 MHz
See Serial Interface Section
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