EVAL-AD7472CB(2000) データシートの表示（PDF） - Analog Devices
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EVAL-AD7472CB Datasheet PDF : 16 Pages
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AD7470/AD7472
AD7472–SPECIFICATIONS1 (VDD = +2.7 V to +5.25 V2, REF IN = 2.5 V, fCLK IN = 26 MHz @ 5 V and 20 MHz @ 3 V;
TA = TMIN to TMAX3, unless otherwise noted.)
Parameter
A Version1
B Version1
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
5V
3V
Signal to Noise + Distortion (SINAD) 69
69
68
68
Signal-to-Noise Ratio (SNR)
70
70
68
68
Total Harmonic Distortion (THD) –83
–78
–83
–84
–75
–75
Peak Harmonic or Spurious Noise
(SFDR)
–86
–81
–86
–86
–76
–76
Intermodulation Distortion (IMD)
Second Order Terms
–77
–77
–86
–86
Third Order Terms
–77
–77
–86
–86
Aperture Delay
5
5
Aperture Jitter
15
15
Full Power Bandwidth
20
20
5V
3V
69
69
68
68
70
70
68
68
–83
–78
–83
–84
–75
–75
–86
–81
–86
–86
–76
–76
–77
–77
–86
–86
–77
–77
–86
–86
5
5
15
15
20
20
dB typ
dB min
dB typ
dB min
dB typ
dB typ
dB max
dB typ
dB typ
dB max
dB typ
dB typ
dB typ
dB typ
ns typ
ps typ
MHz typ
fS = 1.5 MSPS @ 5 V, fS = 1.2 MSPS @ 3 V
fIN = 500 kHz Sine Wave
fIN = 100 kHz Sine Wave
fIN = 500 kHz Sine Wave
fIN = 100 kHz Sine Wave
fIN = 500 kHz Sine Wave
fIN = 100 kHz Sine Wave
fIN = 100 kHz Sine Wave
fIN = 500 kHz Sine Wave
fIN = 100 kHz Sine Wave
fIN = 100 kHz Sine Wave
fIN = 500 kHz Sine Wave
fIN = 100 kHz Sine Wave
fIN = 500 kHz Sine Wave
fIN = 100 kHz Sine Wave
DC ACCURACY
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Gain Error
12
12
±2
±2
± 1.8
± 1.8
± 10
± 10
±2
±2
12
12
±1
±1
± 0.9
± 0.9
± 10
± 10
±2
±2
Bits
LSB max
LSB max
LSB max
LSB max
fS = 1.5 MSPS @ 5 V; fS = 1.2 MSPS @ 3 V
Guaranteed No Missed Codes to 11 Bits
(A Version)
Guaranteed No Missed Codes to 12 Bits
(B Version)
ANALOG INPUT
Input Voltage Ranges
DC Leakage Current
Input Capacitance
0 to REF IN 0 to REF IN
±1
±1
33
33
0 to REF IN 0 to REF IN V
±1
±1
µA max
33
33
pF typ
REFERENCE INPUT
REF IN Input Voltage Range
DC Leakage Current
Input Capacitance
2.5
±1
10/20
2.5
±1
10/20
2.5
±1
10/20
2.5
±1
10/20
V
µA max
pF typ
±1% for Specified Performance
Track/Hold Mode
LOGIC INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IIN
Input Capacitance, CIN4
LOGIC OUTPUTS
Output High Voltage, VOH
Output Low Voltage, VOL
Floating-State Leakage Current
Floating-State Output Capacitance
Output Coding
2.4
2.4
0.4
0.4
±1
±1
10
10
VDRIVE – 0.2 VDRIVE – 0.2
0.4
0.4
± 10
± 10
10
10
Straight (Natural) Binary
2.4
2.4
0.4
0.4
±1
±1
10
10
V min
V max
µA max
pF max
VDRIVE – 0.2 VDRIVE – 0.2
0.4
0.4
± 10
± 10
10
10
Straight (Natural) Binary
V min
V max
µA max
pF max
Typically 10 nA, VIN = 0 V or VDD
ISOURCE = 200 µA
ISINK = 200 µA
VDD = 2.7 V to 5.25 V
CONVERSION RATE
Conversion Time
14
14
Track/Hold Acquisition Time
135
135
Throughput Rate
1.5
1.2
14
14
135
135
1.5
1.2
CLK IN
Cycles (max)
ns min
MSPS max
Conversion Time + Acquisition Time
CLK IN Is 26 MHz @ 5 V and 20 MHz @ 3 V
POWER REQUIREMENTS
VDD
IDD5
Normal Mode
Quiescent Current
Normal Mode
Quiescent Current
Sleep Mode
Power Dissipation5
Normal Mode
Sleep Mode
+2.7/+5.25
2.4
900
1.5
800
1
12
4.5
5
3
+2.7/+5.25
2.4
900
1.5
800
1
12
4.5
5
3
V min/max
mA max
µA max
mA max
µA
µA max
mW max
mW max
µW max
µW max
Digital I/Ps = 0 V or DVDD
VDD = 4.75 V to 5.25 V; fS = 1.5 MSPS; Typ 2 mA
VDD = 4.75 V to 5.25 V; fS = 1.5 MSPS
VDD = 2.7 V to 3.3 V; fS = 1.2 MSPS; Typ 1.3 mA
VDD = 2.7 V to 3.3 V; fS = 1.2 MSPS
CLK IN = 0 V or DVDD
Digital I/Ps = 0 V or DVDD
VDD = 5 V
VDD = 3 V
VDD = 5 V; CLK IN = 0 V or DVDD
VDD = 3 V; CLK IN = 0 V or DVDD
NOTES
1Temperature ranges as follows: A and B Versions: –40°C to +85°C.
2The AD7472 functionally works at 2.35 V. Typical specifications @ +25°C for SNR (100 kHz) = 68 dB; THD (100 kHz) = –84 dB; INL ± 0.8 LSB.
3The AD7472 will typically maintain A-grade performance up to +125°C, with a reduced CLK of 18 MHz @ 5 V and 14 MHz @ 3 V. Typical Sleep Mode current @ +125°C is 700 nA.
4Sample tested @ +25°C to ensure compliance.
5See Power vs. Throughput Rate section.
Specifications subject to change without notice.
REV. A
–3–
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