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AD7091R-2BCPZ Scheda tecnica(PDF) 3 Page - Analog Devices

Il numero della parte AD7091R-2BCPZ
Spiegazioni elettronici  2-/4-/8-Channel, 1 MSPS, Ultralow Power, 12-Bit SAR ADC
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD7091R-2BCPZ Scheda tecnica(HTML) 3 Page - Analog Devices

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Data Sheet
AD7091R-2/AD7091R-4/AD7091R-8
Rev. C | Page 3 of 42
SPECIFICATIONS
VDD = 2.7 V to 5.25 V, VDRIVE = 1.8 V to 5.25 V, VREF = 2.5 V internal reference, fSAMPLE = 1 MSPS, fSCLK = 50 MHz, TA = TMIN to TMAX, unless
otherwise noted.
Table 1.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
fIN = 10 kHz sine wave
Signal-to-Noise Ratio (SNR)
66.5
70
dB
Signal-to-Noise-and-Distortion (SINAD) Ratio
65.5
69
dB
Total Harmonic Distortion (THD)
−80
dB
Spurious-Free Dynamic Range (SFDR)
fIN = 1 kHz sine wave
−81
dB
Channel-to-Channel Isolation
−95
dB
Aperture Delay
5
ns
Aperture Jitter
40
ps
Full Power Bandwidth
At −3 dB
1.5
MHz
At −0.1 dB
1.2
MHz
DC ACCURACY
Resolution
12
Bits
Integral Nonlinearity (INL)
VDD ≥ 3.0 V
−1
±0.7
+1
LSB
VDD ≥ 2.7 V
−1.25
±0.8
+1.25
LSB
Differential Nonlinearity (DNL)
Guaranteed no missing codes to 12 bits
−0.9
±0.3
+0.9
LSB
Offset Error
TA = 25°C
−1.5
0.2
+1.5
mV
Offset Error Matching
TA = 25°C
−1.5
0.2
+1.5
mV
Offset Error Drift
2
ppm/°C
Gain Error
TA = 25°C
−0.1
0.0
+0.1
% FS
Gain Error Matching
TA = 25°C
−0.1
0.0
+0.1
% FS
Gain Error Drift
2
ppm/°C
ANALOG INPUT
Input Voltage Range1
At ADCIN
0
VREF
V
DC Leakage Current
−1
+1
µA
Input Capacitance2
During acquisition phase
10
pF
Outside acquisition phase
1.5
pF
Multiplexer On Resistance
VDD = 5.0 V
50
Ω
VDD = 2.5 V
100
Ω
VOLTAGE REFERENCE INPUT/OUTPUT
REFOUT3
Internal reference output, TA = 25°C
2.49
2.5
2.51
V
REFIN3
External reference input
1.0
VDD
V
Drift
5
ppm/°C
Power-On Time
CREF = 2.2 µF
50
ms
LOGIC INPUTS
Input High Voltage (VIH)
0.7 × VDRIVE
V
Input Low Voltage (VIL)
0.3 × VDRIVE
V
Input Current (IIN)
Typically 10 nA, VIN = 0 V or VDRIVE
−1
+1
µA
LOGIC OUTPUTS
Output High Voltage (VOH)
ISOURCE = 200 µA
VDRIVE − 0.2
V
Output Low Voltage (VOL)
ISINK = 200 µA
0.4
V
Floating State Leakage Current
−1
+1
µA
Output Coding
Straight (natural) binary


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