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AD7492BR 数据表(PDF) 3 Page - Analog Devices

部件名 AD7492BR
功能描述  1.25 MSPS, 16 mW Internal REF and CLK, 12-Bit Parallel ADC
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD7492BR 数据表(HTML) 3 Page - Analog Devices

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REV. 0
–3–
AD7492
AD7492–SPECIFICATIONS1(V
DD = 2.7 V to 5.25 V, TA = TMIN to TMAX, unless otherwise noted.)
Parameter
A Version
1
B Version
1
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
fS = 1 MSPS
Signal to Noise + Distortion (SINAD)
69
69
dB typ
fIN = 500 kHz Sine Wave
68
68
dB min
fIN = 100 kHz Sine Wave
Signal-to-Noise Ratio (SNR)
70
70
dB typ
fIN = 500 kHz Sine Wave
68
68
dB min
fIN = 100 kHz Sine Wave
Total Harmonic Distortion (THD)
–85
–85
dB typ
fIN = 500 kHz Sine Wave
–87
–87
dB typ
fIN = 100 kHz Sine Wave
–75
–75
dB max
fIN = 100 kHz Sine Wave
Peak Harmonic or Spurious Noise (SFDR)
–86
–86
dB typ
fIN = 500 kHz Sine Wave
–90
–90
dB typ
fIN = 100 kHz Sine Wave
–76
–76
dB max
fIN = 100 kHz Sine Wave
Intermodulation Distortion (IMD)
Second Order Terms
–77
–77
dB typ
fIN = 500 kHz Sine Wave
–90
–90
dB typ
fIN = 100 kHz Sine Wave
Third Order Terms
–69
–69
dB typ
fIN = 500 kHz Sine Wave
–88
–88
dB typ
fIN = 100 kHz Sine Wave
Aperture Delay
5
5
ns typ
Aperture Jitter
15
15
ps typ
Full Power Bandwidth
10
10
MHz typ
DC ACCURACY
fS = 1 MSPS
Resolution
12
12
Bits
Integral Nonlinearity
±1.5
LSB max
±0.6
LSB typ
VDD = 5 V
±1
LSB max
VDD = 3 V
Differential Nonlinearity
+1.5/–0.9
+1.5/–0.9
LSB max
Guaranteed No Missed Codes to
12 Bits (A and B Version)
Offset Error
±9
±9
LSB max
Gain Error
±2.5
±2.5
LSB max
ANALOG INPUT
Input Voltage Ranges
0 to 2.5
0 to 2.5
V
DC Leakage Current
±1
±1
µA max
Input Capacitance
33
33
pF typ
REFERENCE OUTPUT
REF OUT Output Voltage Range
2.5
2.5
V
±1.5% for Specified Performance
LOGIC INPUTS
Input High Voltage, VINH
2
VDRIVE
× 0.7
VDRIVE
× 0.7
V min
VDD = 5 V
± 5%
Input Low Voltage, VINL
2
VDRIVE
× 0.3
VDRIVE
× 0.3
V max
VDD = 5 V
± 5%
Input Current, IIN
±1
±1
µA max
Typically 10 nA, VIN = 0 V or VDD
Input Capacitance, CIN
3
10
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
VDRIVE – 0.2
VDRIVE – 0.2
V min
ISOURCE = 200
µA
Output Low Voltage, VOL
0.4
0.4
V max
ISINK = 200
µA
Floating-State Leakage Current
±10
±10
µA max
Floating-State Output Capacitance
10
10
pF max
Output Coding
Straight (Natural) Binary
Straight (Natural) Binary
CONVERSION RATE
Conversion Time
880
880
ns max
Track/Hold Acquisition Time
120
120
ns min
Throughput Rate
1
1
MSPS max
Conversion Time + Acquisition Time
POWER REQUIREMENTS
VDD
2.7/5.25
2.7/5.25
V min/max
IDD
Digital I/Ps = 0 V or DVDD.
Normal Mode
3
3
mA max
fS = 1 MSPS, Typ 2.2 mA
Quiescent Current
1.8
1.8
mA max
Partial Sleep Mode
250
250
µA max
Static. Typ 190
µA
Full Sleep Mode
1
1
µA max
Static. Typ 200 nA
Power Dissipation
4
Digital I/Ps = 0 V or DVDD
Normal Mode
15
15
mW max
VDD = 5 V
Partial Sleep Mode
1.25
1.25
mW max
VDD = 5 V
Full Sleep Mode
5
5
µW max
VDD = 5 V
NOTES
1Temperature ranges as follows: A and B Versions: –40
°C to +85°C.
2V
INH and VINL trigger levels are set by the VDRIVE voltage. The logic interface circuitry is powered by VDRIVE.
3Sample tested @ 25
°C to ensure compliance.
4See Power vs. Throughput Rate section.
Specifications subject to change without notice.


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