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AD7875KN データシート(PDF) 3 Page - Analog Devices

部品番号 AD7875KN
部品情報  LC2MOS Complete, 12-Bit, 100 kHz, Sampling ADCs
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
Logo AD - Analog Devices

AD7875KN データシート(HTML) 3 Page - Analog Devices

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AD7870/AD7875/AD7876
Rev. C | Page 3 of
28
SPECIFICATIONS
VDD = +5 V ± 5%, VSS = −5 V ± 5%, AGND = DGND = 0 V, fCLK = 2.5 MHz external, unless otherwise stated. All Specifications Tmin to
Tmax, unless otherwise noted.
AD7870 SPECIFICATIONS
Table 1.
ADN78701
Parameter
J, A
K, B
L, C
T
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE2
Signal-to-Noise Ratio3 (SNR)
@ +25°C
70
70
72
69
dB min
VIN = 10 kHz sine wave, fSAMPLE = 100 kHz
TMIN to TMAX
70
70
71
69
dB min
Typically 71.5 dB for 0 < VIN < 50 kHz
Total Harmonic Distortion (THD)
−80
−80
−80
−78
dB max
VIN = 10 kHz sine wave, fSAMPLE = 100 kHz
Typically −86 dB for 0 < VIN < 50 kHz
Peak Harmonic or Spurious Noise
−80
−80
−80
−78
dB max
VIN = 10 kHz, fSAMPLE = 100 kHz
Typically −86 dB for 0 < VIN < 50 kHz
Intermodulation Distortion (IMD)
Second Order Terms
−80
−80
−80
−78
dB max
fa = 9 kHz, fb = 9.5 kHz, fSAMPLE = 50 kHz
Third Order Terms
−80
−80
−80
−78
dB max
fa = 9 kHz, fb = 9.5 kHz, fSAMPLE = 50 kHz
Track-and-Hold Acquisition Time
2
2
2
2
μs max
DC ACCURACY
Resolution
12
12
12
12
Bits
Minimum Resolution for which No Missing Codes
are Guaranteed
12
12
12
12
Bits
Integral Nonlinearity
±1/2
±1/2
±1/4
±1/2
LSB typ
Integral Nonlinearity
±1
±1/2
±1
LSB max
Differential Nonlinearity
±1
±1
±1
LSB max
Bipolar Zero Error
±5
±5
±5
±5
LSB max
Positive Full-Scale Error4
±5
±5
±5
±5
LSB max
Negative Full-Scale Error4
±5
±5
±5
±5
LSB max
ANALOG INPUT
Input Voltage Range
±3
±3
±3
±3
V
Input Current
±500
±500
±500
±500
μA max
REFERENCE OUTPUT
REF OUT @ +25°C
2.99
2.99
2.99
2.99
V min
3.01
3.01
3.01
3.01
V max
REF OUT Tempco
±60
±60
±35
±35
ppm/°C
max
Reference Load Sensitivity
(ΔREF OUT/ΔI)
±1
±1
±1
±1
mV max
Reference load current change (0 μA to
500 μA). Reference load should not be
changed during conversion.
LOGIC INPUTS
Input High Voltage, VINH
2.4
2.4
2.4
2.4
V min
VDD = 5 V ± 5%
Input Low Voltage, VINL
0.8
0.8
0.8
0.8
V max
VDD = 5 V ± 5%
Input Current, IIN
±10
±10
±10
±10
μA max
VIN = 0 V to VDD
Input Current (12/8/CLK Input Only)
±10
±10
±10
±10
μA max
VIN = VSS to VDD
Input Capacitance, CIN5
10
10
10
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
4.0
4.0
4.0
4.0
V min
ISOURCE = 40 μA
Output Low Voltage, VOL
0.4
0.4
0.4
0.4
V max
ISINK = 1.6 mA
DB11 to DB0
Floating-State Leakage Current
±10
±10
±10
±10
μA max
Floating-State Output Capacitance5
15
15
15
15
pF max


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