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参数资料
| 型号： | 5962-9561501MLX |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | ADC |
| 英文描述： | 8-CH 12-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, CDIP24 |
| 封装： | 0.300 INCH, HERMETIC SEALED, CERDIP-24 |
| 文件页数： | 12/22页 |
| 文件大小： | 203K |
| 代理商： | 5962-9561501MLX |
REV. B
–2–
AD7890–SPECIFICATIONS
Parameter
A Versions
1
B Versions
S Version
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
Using External
CONVST. Any Channel
Signal to (Noise + Distortion) Ratio
2
70
dB min
fIN = 10 kHz Sine Wave, fSAMPLE = 100 kHz
3
Total Harmonic Distortion (THD)
2
–78
dB max
fIN = 10 kHz Sine Wave, fSAMPLE = 100 kHz
3
Peak Harmonic or Spurious Noise
2
–79
dB max
fIN = 10 kHz Sine Wave, fSAMPLE = 100 kHz
3
Intermodulation Distortion
fa = 9 kHz, fb = 9.5 kHz, fSAMPLE = 100 kHz
3
2nd Order Terms
–80
dB typ
3rd Order Terms
–80
dB typ
Channel-to-Channel Isolation
2
–80
dB max
fIN = 1 kHz Sine Wave
DC ACCURACY
Resolution
12
Bits
Minimum Resolution for Which
No Missing Codes Are Guaranteed
12
Bits
Relative Accuracy
2
±1
±0.5
±1
LSB max
Differential Nonlinearity
2
±1
LSB max
Positive Full-Scale Error
2
±2.5
LSB max
Full-Scale Error Match
4
2
LSB max
AD7890-2, AD7890-4
Unipolar Offset Error
2
±2
LSB max
Unipolar Offset Error Match
2
LSB max
AD7890-10 Only
Negative Full-Scale Error
2
±2
LSB max
Bipolar Zero Error
2
±5
LSB max
Bipolar Zero Error Match
2
LSB max
ANALOG INPUTS
AD7890-10
Input Voltage Range
±10
Volts
Input Resistance
20
k
min
AD7890-4
Input Voltage Range
0 to 4.096
Volts
Input Resistance
11
k
min
AD7890-2
Input Voltage Range
0 to 2.5
Volts
Input Current
50
200
nA max
MUX OUT OUTPUT
Output Voltage Range
0 to 2.5
Volts
Output Resistance
(AD7890-10, AD7890-4)
3/5
k
min/k max
(AD7890-2)
222k
max
Assuming VIN Is Driven from Low Impedance
SHA IN INPUT
Input Voltage Range
0 to 2.5
Volts
Input Current
±50
nA max
REFERENCE OUTPUT/INPUT
REF IN Input Voltage Range
2.375/2.625
V min/V max
2.5 V
± 5%
Input Impedance
1.6
k
min
Resistor Connected to Internal Reference Node
Input Capacitance
5
10
pF max
REF OUT Output Voltage
2.5
V nom
REF OUT Error @ 25
°C
±10
mV max
TMIN to TMAX
±20
±25
mV max
REF OUT Temperature Coefficient
25
ppm/
°C typ
REF OUT Output Impedance
222k
nom
LOGIC INPUTS
Input High Voltage, VINH
2.4
V min
VDD = 5 V
± 5%
Input Low Voltage, VINL
0.8
V max
VDD = 5 V
± 5%
Input Current, IIN
±10
A max
VIN = 0 V to VDD
Input Capacitance, CIN
5
10
pF max
(VDD = 5 V, AGND = DGND = 0 V, REF IN = 2.5 V, fCLK IN = 2.5 MHz external, MUX OUT
connect to SHA IN. All specifications TMIN to TMAX unless otherwise noted.)
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