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AD7273/AD7274
Rev. 0 | Page 3 of 28
SPECIFICATIONS
AD7274 SPECIFICATIONS
VDD = 2.35 V to 3.6 V, VREF = 2.35 V to VDD, fSCLK = 48 MHz, fSAMPLE = 3 MSPS, TA = TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Test Conditions/Comments
DYNAMIC PERFORMANCE
fIN = 1 MHz sine wave
Signal-to-Noise + Distortion (SINAD)
368
dB min
Signal-to-Noise Ratio (SNR)
69.5
dB min
Total Harmonic Distortion (THD)
373
dB max
78
dB typ
Peak Harmonic or Spurious Noise
(SFDR)380
dB typ
Intermodulation Distortion (IMD)
Second-Order Terms
82
dB typ
fa = 1 MHz, fb = 0.97 MHz
Third-Order Terms
82
dB typ
fa = 1 MHz, fb = 0.97 MHz
Aperture Delay
5
ns typ
Aperture Jitter
18
ps typ
Full Power Bandwidth
55
MHz typ
@ 3 dB
8
MHz typ
@ 0.1 dB
Power Supply Rejection Ratio (PSRR)
82
dB typ
DC ACCURACY
Resolution
12
Bits
±1
LSB max
Differential Nonlinearity
3±1
LSB max
Guaranteed no missed codes to 12 bits
±3
LSB max
±3.5
LSB max
Total Unadjusted Error (TUE)
3±3.5
LSB max
ANALOG INPUT
Input Voltage Range
0 to VREF
V
DC Leakage Current
±1
μA max
40°C to +85°C
±5.5
μA max
85°C to 125°C
Input Capacitance
42
pF typ
When in track
10
pF typ
When in hold
REFERENCE INPUT
VREF Input Voltage Range
1.4 to VDD
V min/V max
DC leakage Current
±1
μA max
Input Capacitance
20
pF typ
Input Impedance
32
Ω typ
LOGIC INPUTS
Input High Voltage, VINH
1.7
V min
2.35 V ≤ VDD ≤ 2.7 V
2
V min
2.7 V < VDD ≤ 3.6 V
Input Low Voltage, VINL
0.7
V max
2.35 V ≤ VDD < 2.7 V
0.8
V max
2.7 V ≤ VDD ≤ 3.6 V
Input Current, IIN
±1
μA max
Typically 10 nA, VIN = 0 V or VDD
2
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
VDD 0.2
V min
ISOURCE = 200 μA, VDD = 2.35 V to 3.6 V
Output Low Voltage, VOL
0.2
V max
ISINK = 200 μA
Floating-State Leakage Current
±2.5
μA max
Floating-State Output Capacitanc
e44.5
pF max
Output Coding
Straight (natural) binary