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AD7357YRUZ Datasheet(PDF) 3 Page - Analog Devices

Part No. AD7357YRUZ
Description  Differential Input, Dual, Simultaneous Sampling, 4.2 MSPS, 14-Bit, SAR ADC
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD7357YRUZ Datasheet(HTML) 3 Page - Analog Devices

 
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AD7357
Rev. 0 | Page 3 of 20
SPECIFICATIONS
VDD = 2.5 ± 10% V, VDRIVE = 2.25 V to 3.6 V, internal reference = 2.048 V, fSCLK = 80 MHz, fSAMPLE = 4.2 MSPS; TA = TMIN to TMAX1, unless
otherwise noted.
Table 2.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
fIN = 500 kHz sine wave
Signal-to-Noise Ratio (SNR)
74.5
76.5
dB
Signal-to-Noise and Distortion (SINAD)2
74
76
dB
Total Harmonic Distortion (THD)2
−83
−80
dB
Spurious Free Dynamic Range (SFDR)
−85
−82
dB
Intermodulation Distortion (IMD)2
fa = 1 MHz + 50 kHz, fb = 1 MHz – 50 kHz
Second-Order Terms
−86
dB
Third-Order Terms
−79
dB
ADC-to-ADC Isolation2
−100
dB
fIN = 1 MHz, fNOISE = 100 kHz to 2.5 MHz
CMRR2
−100
dB
fNOISE = 100 kHz to 2.5 MHz
SAMPLE-AND-HOLD
Aperture Delay
3.5
ns
Aperture Delay Match
40
ps
Aperture Jitter
16
ps
Full Power Bandwidth
@ 3 dB
110
MHz
@ 0.1 dB
77
MHz
@ 0.1 dB
DC ACCURACY
Resolution
14
Bits
Integral Nonlinearity (INL)2
±2
±3
LSB
Differential Nonlinearity (DNL)2
±0.5
±0.99
LSB
Guaranteed no missed codes to 14 bits
Positive Full-Scale Error2
±20
LSB
Positive Full-Scale Error Match2
±20
LSB
Midscale Error2
0/35
LSB
Midscale Error Match2
±6
LSB
Negative Full-Scale Error2
±20
LSB
Negative Full-Scale Error Match2
±20
LSB
ANALOG INPUT
Fully Differential Input Range (VIN+ and VIN−)
VCM ± VREF/2
V
VCM = common-mode voltage; VIN+ and
VIN− must remain within GND and VDD
Common-Mode Voltage Range
0.5
1.6
V
The voltage around which VIN+ and VIN−
are centered
DC Leakage Current
±0.5
±5
μA
Input Capacitance
32
pF
When in track mode
8
pF
When in hold mode
REFERENCE INPUT/OUTPUT
VREF Input Voltage Range
2.048 + 0.1
VDD
V
VREF Input Current
0.3
0.45
mA
When in reference overdrive mode
VREF Output Voltage
2.038
2.058
V
±2.048 V ± 0.5% max @ VDD = 2.5 V ± 5%
2.043
2.053
V
2.048 V ± 0.25% max @ VDD = 2.5 V ± 5%
and 25°C
VREF Temperature Coefficient
6
20
ppm/°C
VREF Long Term Stability
100
ppm
For 1000 hours
VREF Thermal Hysteresis
50
ppm
VREF Noise
60
μV rms
VREF Output Impedance
1
Ω


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