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參數資料
| 型號： | AD7853AR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
| 中文描述： | 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24 |
| 封裝： | SOIC-24 |
| 文件頁數： | 2/34頁 |
| 文件大?。?/td> | 350K |
| 代理商： | AD7853AR |
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Parameter
A Version
1
B Version
1
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal to Noise + Distortion Ratio
3
(SNR)
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise
Intermodulation Distortion (IMD)
Second Order Terms
Third Order Terms
70
71
dB min
Typically SNR Is 72 dB
V
IN
= 10 kHz Sine Wave, f
SAMPLE
= 200 kHz (100 kHz)
V
IN
= 10 kHz Sine Wave, f
SAMPLE
= 200 kHz (100 kHz)
V
IN
= 10 kHz Sine Wave, f
SAMPLE
= 200 kHz (100 kHz)
–78
–78
–78
–78
dB max
dB max
–78
–78
–80
–80
dB typ
dB typ
fa = 9.983 kHz, fb = 10.05 kHz, f
SAMPLE
= 200 kHz (100 kHz)
fa = 9.983 kHz, fb = 10.05 kHz, f
SAMPLE
= 200 kHz (100 kHz)
DC ACCURACY
Resolution
Integral Nonlinearity
12
±
1
±
1
12
±
1
±
0.5
(
±
1)
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
2.5 V External Reference V
DD
= 3 V, V
DD
= 5 V (B Grade Only)
5 V External Reference V
DD
= 5 V
(L Version, 5 V External Reference, V
DD
= 5 V)
(L Version)
Guaranteed No Missed Codes to 12 Bits. 2.5 V External Reference
V
DD
= 3 V, 5 V External Reference V
DD
= 5 V
(
±
1)
±
1
Differential Nonlinearity
±
1
Total Unadjusted Error
Unipolar Offset Error
Unipolar Offset Error
±
1
±
1
(
±
2.5)
±
1
±
1
(
±
2.5)
LSB typ
LSB max
LSB max
2.5 V External Reference V
DD
= 3 V, 5 V External Reference V
DD
= 5 V
(L Versions, 2.5 V External Reference V
DD
= 3 V, 5 V External
Reference V
DD
= 5 V)
2.5 V External Reference V
DD
= 3 V, 5 V External Reference V
DD
= 5 V
(L Versions, 2.5 V External Reference V
DD
= 3 V, 5 V External
Reference V
DD
= 5 V)
2.5 V External Reference V
DD
= 3 V, 5 V External Reference V
DD
= 5 V
(L Versions, 2.5 V External Reference V
DD
= 3 V, 5 V External
Reference V
DD
= 5 V)
2.5 V External Reference V
DD
= 3 V, 5 V External Reference V
DD
= 5 V
(L Versions, 2.5 V External Reference V
DD
= 3 V, 5 V External
Reference V
DD
= 5 V)
Positive Full-Scale Error
Positive Full-Scale Error
±
2.5
(
±
4)
±
2.5
(
±
4)
LSB max
LSB max
Negative Full-Scale Error
Negative Full-Scale Error
±
2.5
(
±
4)
±
2.5
(
±
4)
LSB max
LSB max
Bipolar Zero Error
Bipolar Zero Error
±
2
(
±
2.5)
±
2
(
±
2.5)
LSB max
LSB max
ANALOG INPUT
Input Voltage Ranges
0 to V
REF
0 to V
REF
Volts
i.e., AIN(+) – AIN(–) = 0 to V
REF
, AIN(–) Can Be Biased
Up But AIN(+) Cannot Go Below AIN(–)
i.e., AIN(+) – AIN(–) = –V
REF
/2 to +V
REF
/2, AIN(–) Should
Be Biased to +V
REF
/2 and AIN(+) Can Go Below AIN(–) But
Cannot Go Below 0 V
±
V
REF
/2
±
V
REF
/2
Volts
Leakage Current
Input Capacitance
±
1
20
±
1
20
μ
A max
pF typ
REFERENCE INPUT/OUTPUT
REF
IN
Input Voltage Range
Input Impedance
REF
OUT
Output Voltage
REF
OUT
Tempco
2.3/V
DD
150
2.3/2.7
20
2.3/V
DD
150
2.3/2.7
20
V min/max
k
typ
V min/max
ppm/
°
C typ
Functional from 1.2 V
LOGIC INPUTS
Input High Voltage, V
INH
2.4
2.1
2.4
2.1
V min
V min
AV
DD
= DV
DD
= 4.5 V to 5.5 V
AV
DD
= DV
DD
= 3.0 V to 3.6 V
Input Low Voltage, V
INL
0.8
0.6
±
10
10
0.8
0.6
±
10
10
V max
V max
μ
A max
pF max
AV
DD
= DV
DD
= 4.5 V to 5.5 V
AV
DD
= DV
DD
= 3.0 V to 3.6 V
Typically 10 nA, V
IN
= 0 V or V
DD
Input Current, I
IN
Input Capacitance, C
IN4
AD7853/AD7853L–SPECIFICATIONS
1, 2
External Reference, f
CLKIN
= 4 MHz (1.8 MHz B Grade (0
8
C to +70
8
C), 1 MHz A and B Grades (–40
8
C to +85
8
C) for L Version); f
SAMPLE
= 200 kHz
(AD7853) 100 kHz (AD7853L);
SLEEP
= Logic High; T
A
= T
MIN
to T
MAX
, unless otherwise noted.) Specifications in () apply to the AD7853L.
REV. B
–2–
(AV
DD
= DV
DD
= +3.0 V to +5.5 V, REF
IN
/REF
OUT
= 2.5 V
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