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AD7921ARMZ 数据表(PDF) 5 Page - Analog Devices

部件名 AD7921ARMZ
功能描述  2-Channel, 2.35 V to 5.25 V 250 kSPS, 10-/12-Bit ADCs
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD7921ARMZ 数据表(HTML) 5 Page - Analog Devices

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AD7911/AD7921
Rev. A | Page 5 of 28
AD7921 SPECIFICATIONS
Temperature range for A Grade from −40°C to +85°C.
VDD = 2.35 V to 5.25 V, fSCLK = 5 MHz, fSAMPLE = 250 kSPS; TA = TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
A Grade1
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
fIN = 100 kHz sine wave
Signal-to-Noise and Distortion (SINAD)2
70
dB min
72
dB typ
Signal-to-Noise Ratio (SNR)2
71
dB min
72.5
dB typ
Total Harmonic Distortion (THD)2
−81
dB typ
Peak Harmonic or Spurious Noise (SFDR)2
−84
dB typ
Intermodulation Distortion (IMD)2
Second-Order Terms
−84
dB typ
fa = 100.73 kHz, fb = 90.72 kHz
Third-Order Term
−86
dB typ
fa = 100.73 kHz, fb = 90.72 kHz
Aperture Delay
10
ns typ
Aperture Jitter
30
ps typ
Channel-to-Channel Isolation2
−90
dB typ
Full Power Bandwidth
8.5
MHz typ
@ 3 dB
1.5
MHz typ
@ 0.1 dB
DC ACCURACY
Resolution
12
Bits
Integral Nonlinearity2
±1.5
LSB max
Differential Nonlinearity2
−0.9/+1.5
LSB max
Guaranteed no missed codes to 12 bits
Offset Error2
±1.5
LSB max
±0.5
LSB typ
Offset Error Match2, 3
±0.5
LSB max
Gain Error2
± 2
LSB max
±0.3
LSB typ
Gain Error Match2, 3
±1
LSB max
Total Unadjusted Error (TUE)2
±1.5
LSB max
ANALOG INPUT
Input Voltage Ranges
0 to VDD
V
DC Leakage Current
±0.3
μA max
Input Capacitance
20
pF typ
LOGIC INPUTS
Input High Voltage, VINH
0.7 (VDD)
V min
2.35 V ≤ VDD ≤ 2.7 V
2
V min
2.7 V < VDD ≤ 5.25 V
Input Low Voltage, VINL
0.3
V max
VDD = 2.35 V
0.2 (VDD)
V max
2.35 V < VDD ≤ 2.7 V
0.8
V max
2.7 V < VDD ≤ 5.25 V
Input Current, IIN, SCLK Pin
±0.3
μA max
VIN = 0 V or VDD
Input Current, IIN, CS Pin
±0.3
μA max
Input Current, IIN, DIN Pin
±0.3
μA max
Input Capacitance, CIN3
5
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
VDD − 0.2
V min
ISOURCE = 200 μA; VDD = 2.35 V to 5.25 V
Output Low Voltage, VOL
0.2
V max
ISINK = 200 μA
Floating-State Leakage Current
±0.3
μA max
Floating-State Output Capacitance3
5
pF max
Output Coding
Straight (natural) binary
See notes at end of table.


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