AD7298BCPZ-RL7(RevPrA) 查看數據表（PDF） - Analog Devices
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AD7298BCPZ-RL7 Datasheet PDF : 18 Pages
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Preliminary Technical Data
AD7298
SPECIFICATIONS
AD7298 SPECIFICATIONS
VDD = 2.8V to 3.6V; VDRIVE = 1.65 V to 3.6 V; fSAMPLE = 1 MSPS, fSCLK = 20 MHz, fast SCLK mode; VREF = 2.5 V internal/external; TA = −40°C
to +125°C, unless otherwise noted.
Table 2.
Parameter
Min
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio (SNR)1
70
Signal-to-Noise (+ Distortion) Ratio (SINAD)1 70
Total Harmonic Distortion (THD)1
Spurious-Free Dynamic Range (SFDR)1
Intermodulation Distortion (IMD)1
Second-Order Terms
Third-Order Terms
Channel-to-Channel Isolation1
SAMPLE AND HOLD
Aperture Delay2
Aperture Jitter2
Full Power Bandwidth
DC ACCURACY
Resolution
Integral Nonlinearity (INL)1
Differential Nonlinearity (DNL)1
Offset Error
Offset Error Matching
Offset Temperature Drift
Gain Error
Gain Error Matching
Gain Temperature Drift
ANALOG INPUT
Input Voltage Ranges
DC Leakage Current
Input Capacitance
Input Impedance
REFERENCE INPUT/OUTPUT
Reference Output Voltage3
Long-Term Stability
Output Voltage Hysteresis1
Reference Input Voltage Range4
DC Leakage Current
Input Capacitance
VREF Output Impedance
Reference Temperature Coefficient
VREF Noise
12
0
2.4875
2.0
Typ
71
71
−84
−85
−88
−88
−100
40
TBD
TBD
±0.5
±0.5
±1
±0.5
4
±1
±0.5
0.5
±0.01
32
TBD
2.5
150
50
±0.01
TBD
1
6
60
Max Unit
dB
dB
78
dB
80
dB
dB
dB
dB
Test Conditions/Comments
fIN = 50 kHz sine wave
fA = 40.1 kHz, fB = 41.5 kHz
10
ns
ps
MHz
@ 3 dB
MHz
@ 0.1 dB
±1
±0.99
±6
±1
±2
±1
Bits
LSB
LSB
LSB
LSB
ppm/°C
LSB
LSB
ppm/°C
Guaranteed no missed codes to 12 bits
VREF
V
±1
µA
pF
kΩ
When in track
@ 1 MSPS
2.5125
2.5
±1
25
V
ppm
ppm
V
µA
pF
Ω
ppm/°C
µV rms
±0.5% maximum @ 25°C
For 1000 hours
External reference applied to Pin VREF
Bandwidth = TBD kHz
Rev. PrA | Page 2 of 18
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