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AD7478AAKSZ-500RL7 Datasheet(PDF) 2 Page - Analog Devices

No. de pieza AD7478AAKSZ-500RL7
Descripción Electrónicos  2.35 V to 5.25 V, 1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SC70
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

AD7478AAKSZ-500RL7 Datasheet(HTML) 2 Page - Analog Devices

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REV. C
–2–
AD7476A/AD7477A/AD7478A
(VDD = 2.35 V to 5.25 V, fSCLK = 20 MHz, fSAMPLE = 1 MSPS, unless otherwise noted;
TA = TMIN to TMAX, unless otherwise noted.)
AD7476A–SPECIFICATIONS1
Parameter
A Grade
2
B Grade
2
Y Grade
2
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
fIN = 100 kHz Sine Wave
Signal-to-Noise + Distortion (SINAD)
3
70
70
70
dB min
VDD = 2.35 V to 3.6 V, TA = 25 C
69
69
69
dB min
VDD = 2.4 V to 3.6 V
71.5
71.5
71.5
dB typ
VDD = 2.35 V to 3.6 V
69
69
69
dB min
VDD = 4.75 V to 5.25 V, TA = 25 C
68
68
68
dB min
VDD = 4.75 V to 5.25 V
Signal-to-Noise Ratio (SNR)
3
71
71
71
dB min
VDD = 2.35 V to 3.6 V, TA = 25 C
70
70
70
dB min
VDD = 2.4 V to 3.6 V
70
70
70
dB min
VDD = 4.75 V to 5.25 V, TA = 25 C
69
69
69
dB min
VDD = 4.75 V to 5.25 V
Total Harmonic Distortion (THD)
3
–80
–80
–80
dB typ
Peak Harmonic or Spurious Noise (SFDR)
3 –82
–82
–82
dB typ
Intermodulation Distortion (IMD)
3
Second-Order Terms
–84
–84
–84
dB typ
fa = 100.73 kHz, fb = 90.72 kHz
Third-Order Terms
–84
–84
–84
dB typ
fa = 100.73 kHz, fb = 90.72 kHz
Aperture Delay
10
10
10
ns typ
Aperture Jitter
30
30
30
ps typ
Full Power Bandwidth
13.5
13.5
13.5
MHz typ
@ 3 dB
222
MHz typ
@ 0.1 dB
DC ACCURACY
B and Y Grades
4
Resolution
12
12
12
Bits
Integral Nonlinearity
3
±1.5
±1.5
LSB max
±0.75
LSB typ
Differential Nonlinearity
–0.9/+1.5
–0.9/+1.5
LSB max
Guaranteed No Missed Codes to 12 Bits
±0.75
LSB typ
Offset Error
3, 5
±1.5
±1.5
LSB max
±1.5
±0.2
±0.2
LSB typ
Gain Error
3, 5
±1.5
±1.5
LSB max
±1.5
±0.5
±0.5
LSB typ
Total Unadjusted Error (TUE)
3, 5
±2
±2
LSB max
ANALOG INPUT
Input Voltage Range
0 to VDD
0 to VDD
0 to VDD
V
DC Leakage Current
±0.5
±0.5
±0.5
µA max
Input Capacitance
20
20
20
pF typ
Track-and-Hold in Track; 6 pF typ when
in Hold
LOGIC INPUTS
Input High Voltage, VINH
2.4
2.4
2.4
V min
1.8
1.8
1.8
V min
VDD = 2.35 V
Input Low Voltage, VINL
0.8
0.8
0.8
V max
VDD = 5 V
0.4
0.4
0.4
V max
VDD = 3 V
Input Current, IIN, SCLK Pin
±0.5
±0.5
±0.5
µA max
Typically 10 nA, VIN = 0 V or VDD
Input Current, IIN, CS Pin
±10
±10
±10
nA typ
Input Capacitance, CIN
6
555
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
VDD – 0.2
VDD – 0.2
VDD – 0.2
V min
ISOURCE = 200
µA; V
DD = 2.35 V to 5.25 V
Output Low Voltage, VOL
0.4
0.4
0.4
V max
ISINK = 200
µA
Floating-State Leakage Current
±1
±1
±1
µA max
Floating-State Output Capacitance
6
555
pF max
Output Coding
Straight (Natural) Binary
CONVERSION RATE
Conversion Time
800
800
800
ns max
16 SCLK Cycles
Track-and-Hold Acquisition Time
3
250
250
250
ns max
Throughput Rate
1
1
1
MSPS max See Serial Interface Section


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