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參數(shù)資料
| 型號： | EVAL-AD7859CB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADCs |
| 中文描述： | 3 V至5 V單電源，200 kSPS的8通道，12位采樣ADC |
| 文件頁數(shù)： | 2/28頁 |
| 文件大?。?/td> | 535K |
| 代理商： | EVAL-AD7859CB |
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Parameter
A Version
1
B Version
1
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal to Noise + Distortion Ratio
3
(SNR)
70
71
dB min
Typically SNR is 72 dB
V
IN
= 10 kHz Sine Wave, f
SAMPLE
= 200 kHz
(for L Version: f
SAMPLE
= 100 kHz @ f
CLKIN
= 2 MHz)
V
IN
= 10 kHz Sine Wave, f
SAMPLE
= 200 kHz
(for L Version: f
SAMPLE
= 100 kHz @ f
CLKIN
= 2 MHz)
V
IN
= 10 kHz Sine Wave, f
SAMPLE
= 200 kHz
(for L Version: f
SAMPLE
= 100 kHz @ f
CLKIN
= 2 MHz)
Total Harmonic Distortion (THD)
–78
–78
dB max
Peak Harmonic or Spurious Noise
–78
–78
dB max
Intermodulation Distortion (IMD)
Second Order Terms
–78
–78
dB typ
fa = 9.983 kHz, fb = 10.05 kHz, f
SAMPLE
= 200 kHz
(for L Version: f
SAMPLE
= 100 kHz @ f
CLKIN
= 2 MHz)
fa = 9.983 kHz, fb = 10.05 kHz, f
SAMPLE
= 200 kHz
(for L Version: f
SAMPLE
= 100 kHz @ f
CLKIN
= 2 MHz)
V
IN
= 25 kHz
Third Order Terms
–78
–78
dB typ
Channel-to-Channel Isolation
–80
–80
dB typ
DC ACCURACY
Resolution
Integral Nonlinearity
Differential Nonlinearity
Unipolar Offset Error
12
±
1
±
1
±
5
±
2
2(3)
±
5
±
2
±
2
1
±
1
2
12
±
0.5
±
1
±
5
±
2
2
±
5
±
2
±
2
1
±
1
2
Bits
LSB max
LSB max
LSB max
LSB typ
LSB max
LSB max
LSB typ
LSB max
LSB max
LSB typ
LSB typ
5 V Reference V
DD
= 5 V
Guaranteed No Missed Codes to 12 Bits
Unipolar Offset Error Match
Positive Full-Scale Error
Negative Full-Scale Error
Full-Scale Error Match
Bipolar Zero Error
Bipolar Zero Error Match
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
3
2.4
0.8
0.6
±
10
10
2.4
2.1
3
2.4
0.8
0.6
±
10
10
V min
V min
V min
V min
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
AV
DD
= DV
DD
= 4.5 V to 5.5 V
AV
DD
= DV
DD
= 3.0 V to 3.6 V
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
CAL
Pin
Input Low Voltage, V
INL
Input Current, I
IN
Input Capacitance, C
IN4
LOGIC OUTPUTS
Output High Voltage, V
OH
4
2.4
0.4
±
10
10
4
2.4
0.4
±
10
10
V min
V min
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
I
SINK
= 1.6 mA
Output Low Voltage, V
OL
Floating State Leakage Current
Floating-State Output Capacitance
4
Output Coding
Straight (Natural) Binary
2s Complement
Unipolar Input Range
Bipolar Input Range
AD7859/AD7859L–SPECIFICATIONS
1, 2
External Reference, f
CLKIN
= 4 MHz (for L Version: 1.8 MHz (0
8
C to +70
8
C) and 1 MHz (–40
8
C to +85
8
C)); f
SAMPLE
= 200 kHz (AD7859) 100 kHz
(AD7859L);
SLEEP
= Logic High; T
A
= T
MIN
to T
MAX
, unless otherwise noted.) Specifications in () apply to the AD7859L.
(AV
DD
= DV
DD
= +3.0 V to +5.5 V, REF
IN
/REF
OUT
= 2.5 V
–2–
REV. A
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