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AD7298-1BCPZ Datasheet(PDF) 3 Page - Analog Devices

Part # AD7298-1BCPZ
Description  8-Channel, 1 MSPS, 10-Bit SAR ADC
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7298-1BCPZ Datasheet(HTML) 3 Page - Analog Devices

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AD7298-1
Rev. A | Page 3 of 24
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
Typ
Max
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
fIN = 50 kHz sine wave
Signal-to-Noise Ratio (SNR)1
61
61.5
dB
Signal-to-Noise-(and-Distortion) Ratio (SINAD)2
61
61.5
dB
Total Harmonic Distortion (THD)2
−82
−75
dB
Spurious-Free Dynamic Range (SFDR)
−83
−76
dB
Intermodulation Distortion (IMD)
fA = 40.1 kHz, fB = 41.5 kHz
Second-Order Terms
−86
dB
Third-Order Terms
−86
dB
Channel-to-Channel Isolation
−90
dB
fIN = 50 kHz, fNOISE = 60 kHz
SAMPLE AND HOLD
Aperture Delay3
12
ns
Aperture Jitter3
40
ps
Full Power Bandwidth
30
MHz
At 3 dB
10
MHz
At 0.1 dB
DC ACCURACY
Resolution
10
Bits
Integral Nonlinearity (INL)2
±0.25
±0.5
LSB
Differential Nonlinearity (DNL)2
±0.3
±0.5
LSB
Guaranteed no missed codes to 10 bits
Offset Error2
±0.5
±1.125
LSB
Offset Error Matching2
±0.625
±1.125
LSB
Offset Temperature Drift
4
ppm/°C
Gain Error2
±0.25
±1
LSB
Gain Error Matching2
±0.16
±0.625
LSB
Gain Temperature Drift
0.5
ppm/°C
ANALOG INPUT
Input Voltage Ranges
0
VREF
V
DC Leakage Current
±0.01
±1
μA
Input Capacitance
32
pF
When in track mode
8
pF
When in hold mode
REFERENCE INPUT/OUTPUT
Reference Output Voltage4
2.4925
2.5
2.5075
V
±0.3% maximum at 25°C
Long-Term Stability
150
ppm
For 1000 hours
Output Voltage Hysteresis
50
ppm
Reference Input Voltage Range
1
2.5
V
DC Leakage Current
±0.01
±1
μA
External reference applied to the VREF pin
VREF Output Impedance
1
Ω
VREF Temperature Coefficient
12
35
ppm/°C
VREF Noise
60
μV rms
Bandwidth = 10 MHz
LOGIC INPUTS
Input High Voltage, VINH
0.7 × VDRIVE
V
Input Low Voltage, VINL
0.3 × VDRIVE
V
Input Current, IIN
±0.01
±1
μA
VIN = 0 V or VDRIVE
Input Capacitance, CIN3
3
pF


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