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AD7992 датащи(PDF) 4 Page - Analog Devices

номер детали AD7992
подробное описание детали  2-Channel, 12-Bit ADC with IC-Compatible Interface in 10-Lead MSOP
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
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AD7992 датащи(HTML) 4 Page - Analog Devices

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AD7992
Rev. 0 | Page 3 of 28
SPECIFICATIONS
Temperature range for B version is −40°C to +125°C. Unless otherwise noted, VDD = 2.7 V to 5.5 V; REFIN = 2.5 V to VDD. For the
AD7992-0, all specifications apply for fSCL up to 400 kHz; for the AD7992-1 all specifications apply for fSCL up to 3.4 MHz. All
specifications are for both single-channel mode and dual-channel mode, Unless otherwise noted; TA = TMIN to TMAX.
Table 2.
Parameter
B Version
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE1
FIN = 10 kHz sine wave for fSCL from 1.7 MHz to
3.4 MHz
FIN = 1 kHz sine wave for fSCL up to 400 kHz
Signal-to-Noise + Distortion (SINAD)2
70.5
dB min
Signal-to-Noise Ratio (SNR)2
71
dB min
Total Harmonic Distortion (THD)2
–78
dB max
Peak Harmonic or Spurious Noise (SFDR)2
–79
dB max
Intermodulation Distortion (IMD)2
fa = 10.1 kHz, fb = 9.9 kHz for fSCL from 1.7 MHz
to 3.4 MHz
fa = 1.1 kHz, fb = 0.9 kHz for fSCL up to 400 kHz
Second-Order Terms
–90
dB typ
Third-Order Terms
–90
dB typ
Aperture Delay2
10
ns max
Aperture Jitter2
50
ps typ
Channel-to-Channel Isolation2
−90
dB typ
FIN = 108 Hz; see the Terminology section
Full Power Bandwidth2
11
MHz typ
@ 3 dB
2
MHz typ
@ 0.1 dB
DC ACCURACY
Resolution
12
Bits
Integral Nonlinearity1, 2
±1
LSB max
±0.2
LSB typ
Differential Nonlinearity1, 2
+1/–0.9
LSB max
Guaranteed no missed codes to 12 bits
±0.2
LSB typ
Offset Error2
±4
LSB max
Mode 1 (CONVST mode)
±6
LSB max
Mode 2 (command mode)
Offset Error Match2
±1
LSB max
Dual-channel mode
Gain Error2
±2
LSB max
Gain Error Match2
±1
LSB max
Dual-channel mode
ANALOG INPUT
Input Voltage Range
0 to REFIN
V
DC Leakage Current
±1
µA max
Input Capacitance
30
pF typ
REFERENCE INPUT
REFIN Input Voltage Range
1.2 to VDD
V min/V max
DC Leakage Current
±1
µA max
Input Impedance
69
kΩ typ
LOGIC INPUTS (SDA, SCL)
Input High Voltage, VINH
0.7 (VDD)
V min
Input Low Voltage, VINL
0.3 (VDD)
V max
Input Leakage Current, IIN
±1
µA max
VIN = 0 V or VDD
Input Capacitance, CIN3
10
pF max
Input Hysteresis, VHYST
0.1 (VDD)
V min


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