參數(shù)資料
型號(hào)： AD7478A
英文描述： AD7476A/AD7477A/AD7478A: 2.35 V to 5.25 V. 1 MSPS. 12-/10-/8-Bit ADCs in 6-Lead SC70 Data Sheet (Rev. A. 2/03)
中文描述： AD7476A/AD7477A/AD7478A：2.35 V至5.25五，1 MSPS的。 12/10/8位ADC的6引腳SC70數(shù)據(jù)手冊(cè)（版本A 2月3日）
文件頁數(shù)： 3/20頁
文件大小： 729K
代理商： AD7478A
REV. A
AD7476A/AD7477A/AD7478A
–3–
AD7477A–SPECIFICATIONS
1
(V
DD
= 2.35 V to 5.25 V, f
= 20 MHz, f
SAMPLE
= 1 MSPS, unless otherwise noted;
T
A
MIN
to T
MAX
, unless otherwise noted.)
Parameter
A Grade
2
B Grade
2
Y Grade
2
Unit
Test Conditions/Comments
POWER REQUIREMENTS
V
DD
I
DD
Normal Mode (Static)
2.35/5.25
2.35/5.25
2.35/5.25
V min/max
Digital I/Ps = 0 V or V
DD
V
DD
= 4.75 V to 5.25 V, SCLK ON or OFF
V
DD
= 2.35 V to 3.6 V, SCLK ON or OFF
V
DD
= 4.75 V to 5.25 V, f
SAMPLE
= 1 MSPS
V
DD
= 2.35 V to 3.6 V, f
SAMPLE
= 1 MSPS
Typically 50 nA
V
DD
= 5 V, f
SAMPLE
= 100 kSPS
V
DD
= 3 V, f
SAMPLE
= 100 kSPS
2.5
1.2
3.5
1.7
1
0.6
0.3
2.5
1.2
3.5
1.7
1
0.6
0.3
2.5
1.2
3.5
1.7
1
0.6
0.3
mA typ
mA typ
mA max
mA max
μ
A max
mA typ
mA typ
Normal Mode (Operational)
Full Power-Down Mode (Static)
Full Power-Down Mode (Dynamic)
Power Dissipation
7
Normal Mode (Operational)
17.5
5.1
5
3
17.5
5.1
5
3
17.5
5.1
5
3
mW max
mW max
μ
W max
μ
W max
V
DD
= 5 V, f
SAMPLE
= 1 MSPS
V
DD
= 3 V, f
SAMPLE
= 1 MSPS
V
DD
= 5 V
V
DD
= 3 V
Full Power-Down Mode
NOTES
1
Temperature ranges as follows: A, B Grades:
–
40
°
C to +85
°
C, Y Grade:
–
40
°
C to +125
°
C.
2
Operational from V
= 2.0 V, with input low voltage (V
INL
) 0.35 V max.
3
See Terminology section.
4
B and Y Grades, maximum specifications apply as typical figures when V
DD
= 4.75 V to 5.25 V.
5
SC70 values guaranteed by characterization.
6
Sample tested @ 25
°
C to ensure compliance.
7
See Power Versus Throughput Rate section.
Specifications subject to change without notice.
Parameter
A Grade
2
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal-to-Noise + Distortion (SINAD)
3
Total Harmonic Distortion (THD)
3
Peak Harmonic or Spurious Noise (SFDR)
3
Intermodulation Distortion (IMD)
3
Second Order Terms
Third Order Terms
Aperture Delay
Aperture Jitter
Full Power Bandwidth
f
IN
= 100 kHz Sine Wave
61
–
72
–
73
dB min
dB max
dB max
–
82
–
82
10
30
13.5
2
dB typ
dB typ
ns typ
ps typ
MHz typ
MHz typ
fa = 100.73 kHz, fb = 90.7 kHz
fa = 100.73 kHz, fb = 90.7 kHz
@ 3 dB
@ 0.1 dB
DC ACCURACY
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
3, 4
Gain Error
3, 4
Total Unadjusted Error (TUE)
3, 4
10
±
0.5
±
0.5
±
1
±
1
±
1.2
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
Guaranteed No Missed Codes to 10 Bits
ANALOG INPUT
Input Voltage Range
DC Leakage Current
Input Capacitance
0 to V
DD
±
0.5
20
V
μ
A max
pF typ
Track-and-Hold in Track; 6 pF typ when
in Hold
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