AD7278(RevC) 查看數據表（PDF） - Analog Devices
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AD7278 Datasheet PDF : 28 Pages
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AD7276/AD7277/AD7278
SPECIFICATIONS
AD7276 SPECIFICATIONS
VDD = 2.35 V to 3.6 V, B Grade and A Grade: fSCLK = 48 MHz, fSAMPLE = 3 MSPS, Y Grade:1 fSCLK = 16 MHz, fSAMPLE = 1 MSPS, TA = TMIN to
TMAX, unless otherwise noted.
Table 2.
Parameter
DYNAMIC PERFORMANCE
A Grade2, 3 B, Y Grade2,3 Unit
Signal-to-Noise + Distortion (SINAD)4
Signal-to-Noise Ratio (SNR)
Total Harmonic Distortion (THD)4
Peak Harmonic or Spurious Noise (SFDR)4
Intermodulation Distortion (IMD)4
Second-Order Terms
Third-Order Terms
Aperture Delay
Aperture Jitter
Full Power Bandwidth
DC ACCURACY
Resolution
Integral Nonlinearity4
Differential Nonlinearity4
Offset Error4
Gain Error4
Total Unadjusted Error4 (TUE)
ANALOG INPUT
Input Voltage Ranges
DC Leakage Current
Input Capacitance
LOGIC INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IIN
Input Capacitance, CIN5
LOGIC OUTPUTS
Output High Voltage, VOH
Output Low Voltage, VOL
Floating-State Leakage Current
Floating-State Output Capacitance5
Output Coding
68
68
69
69
70
70
−73
−73
−78
−78
−80
−80
dB min
dB min
dB typ
dB max
dB typ
dB typ
−82
−82
−82
−82
5
5
18
18
55
55
8
8
dB typ
dB typ
ns typ
ps typ
MHz typ
MHz typ
12
±1.5
+1/−0.99
±4
±3.5
±5
12
±1
+1/−0.99
±3
±3.5
±3.5
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
0 to VDD
±1
±5.5
42
10
0 to VDD
±1
±5.5
42
10
V
μA max
μA max
pF typ
pF typ
1.7
1.7
2
2
0.7
0.7
0.8
0.8
±1
±1
2
2
V min
V min
V max
V max
μA max
pF typ
VDD − 0.2
VDD − 0.2
V min
0.2
0.2
V max
±2.5
±2.5
μA max
4.5
4.5
pF typ
Straight (natural) binary
Test Conditions/Comments
fIN = 1 MHz sine wave, B Grade
fIN = 100 kHz sine wave, Y Grade
fa = 1 MHz, fb = 0.97 MHz
fa = 1 MHz, fb = 0.97 MHz
@ 3 dB
@ 0.1 dB
Guaranteed no missed codes to 12 bits
−40°C to +85°C
85°C to 125°C
When in track
When in hold
2.35 V ≤ VDD ≤ 2.7 V
2.7 V < VDD ≤ 3.6 V
2.35 V ≤ VDD ≤ 2.7 V
2.7 V < VDD ≤ 3.6 V
Typically 10 nA, VIN = 0 V or VDD
ISOURCE = 200 μA, VDD = 2.35 V to 3.6 V
ISINK = 200 μA
Rev. C | Page 3 of 28
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