AD7298 データシートの表示（PDF） - Analog Devices
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AD7298 Datasheet PDF : 24 Pages
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AD7298
SPECIFICATIONS
VDD = 2.8 V to 3.6 V; VDRIVE = 1.65 V to 3.6 V; fSAMPLE = 1 MSPS, fSCLK = 20 MHz, VREF = 2.5 V internal; TA = −40°C to +125°C, unless
otherwise noted.
Table 1.
Parameter
Min
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio (SNR)1, 2
70
Signal-to-Noise (and Distortion) Ratio (SINAD)1 70
Total Harmonic Distortion (THD)1
Spurious-Free Dynamic Range (SFDR)
Intermodulation Distortion (IMD)
Second-Order Terms
Third-Order Terms
Channel-to-Channel Isolation
SAMPLE AND HOLD
Aperture Delay3
Aperture Jitter3
Full Power Bandwidth
DC ACCURACY
Resolution
12
Integral Nonlinearity (INL)1
Differential Nonlinearity (DNL)1
Offset Error1
Offset Error Matching1
Offset Temperature Drift
Gain Error1
Gain Error Matching1
Gain Temperature Drift
ANALOG INPUT
Input Voltage Ranges
0
DC Leakage Current
Input Capacitance
REFERENCE INPUT/OUTPUT
Reference Output Voltage4
Long-Term Stability
Output Voltage Hysteresis
Reference Input Voltage Range5
DC Leakage Current
VREF Output Impedance
VREF Temperature Coefficient
VREF Noise
2.4925
1
Typ Max
72
71
−82 −77
−84 −77.5
−84
−93
−100
12
40
30
10
±0.5 ±1
±0.5 ±0.99
±2 ±4.5
±2.5 ±4.5
4
±1 ±4
±1 ±2.5
0.5
VREF
±0.01 ±1
32
8
2.5
150
50
±0.01
1
12
60
2.5075
2.5
±1
35
Unit
dB
dB
dB
dB
dB
dB
dB
Test Conditions/Comments
fIN = 50 kHz sine wave
fA = 40.1 kHz, fB = 41.5 kHz
fIN = 50 kHz, fNOISE = 60 kHz
ns
ps
MHz
@ 3 dB
MHz
@ 0.1 dB
Bits
LSB
LSB
LSB
LSB
ppm/°C
LSB
LSB
ppm/°C
Guaranteed no missed codes to 12 bits
V
μA
pF
When in track
pF
When in hold mode
V
ppm
ppm
V
μA
Ω
ppm/°C
μV rms
±0.3% maximum @ 25°C
For 1000 hours
External reference applied to Pin VREF
Bandwidth = 10 MHz
Rev. B | Page 3 of 24
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