AD7904 查看數據表（PDF） - Analog Devices
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AD7904 Datasheet PDF : 32 Pages
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Data Sheet
AD7904/AD7914/AD7924
AD7914 SPECIFICATIONS
AVDD = VDRIVE = 2.7 V to 5.25 V, REFIN = 2.5 V, fSCLK = 20 MHz, TA = TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
DYNAMIC PERFORMANCE
Signal to (Noise + Distortion) (SINAD)2
Signal-to-Noise Ratio (SNR)
Total Harmonic Distortion (THD)2
Peak Harmonic or Spurious Noise (SFDR)
Intermodulation Distortion (IMD)
Second-Order Terms
Third-Order Terms
Aperture Delay
Aperture Jitter
Channel-to-Channel Isolation2
Full Power Bandwidth
DC ACCURACY
Resolution
Integral Nonlinearity (INL)2
Differential Nonlinearity (DNL)2
0 V to REFIN Input Range
Offset Error2
Offset Error Match2
Gain Error2
Gain Error Match2
0 V to 2 × REFIN Input Range
Positive Gain Error2
Positive Gain Error Match2
Zero Code Error2
Zero Code Error Match2
Negative Gain Error2
Negative Gain Error Match2
ANALOG INPUT
Input Voltage Range
DC Leakage Current
Input Capacitance
REFERENCE INPUT
REFIN Input Voltage
DC Leakage Current
REFIN Input Impedance
LOGIC INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IIN
Input Capacitance, CIN3
B Version1
61
60.5
61
60.5
−72
−74
−90
−90
10
50
−85
8.2
1.6
10
±0.5
±0.5
±2
±0.2
±0.5
±0.2
Unit
dB min
dB min
dB min
dB min
dB max
dB max
dB typ
dB typ
ns typ
ps typ
dB typ
MHz typ
MHz typ
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
±0.5
±0.2
±2
±0.2
±0.5
±0.2
0 to REFIN
0 to 2 × REFIN
±1
20
2.5
±1
36
0.7 × VDRIVE
0.3 × VDRIVE
±1
10
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
V
V
μA max
pF typ
V
μA max
kΩ typ
V min
V max
μA max
pF max
Test Conditions/Comments
fIN = 50 kHz sine wave, fSCLK = 20 MHz
B models
W models
B models
W models
fa = 40.1 kHz, fb = 41.5 kHz
fIN = 400 kHz
@ 3 dB
@ 0.1 dB
Guaranteed no missed codes to 10 bits
Straight binary output coding
−REFIN to +REFIN biased about REFIN with twos
complement output coding
RANGE bit set to 1
RANGE bit set to 0, AVDD/VDRIVE = 4.75 V to 5.25 V
±1% specified performance
fSAMPLE = 1 MSPS
Typically 10 nA, VIN = 0 V or VDRIVE
Rev. C | Page 5 of 32
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