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AD7859LAS Fiches technique(PDF) 2 Page - Analog Devices

No de pièce AD7859LAS
Description  3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADCs
Download  28 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD7859LAS Fiches technique(HTML) 2 Page - Analog Devices

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Parameter
A Version
1
B Version
1
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal to Noise + Distortion Ratio
3
70
71
dB min
Typically SNR is 72 dB
(SNR)
VIN = 10 kHz Sine Wave, fSAMPLE = 200 kHz
(for L Version: fSAMPLE = 100 kHz @ fCLKIN = 2 MHz)
Total Harmonic Distortion (THD)
–78
–78
dB max
VIN = 10 kHz Sine Wave, fSAMPLE = 200 kHz
(for L Version: fSAMPLE = 100 kHz @ fCLKIN = 2 MHz)
Peak Harmonic or Spurious Noise
–78
–78
dB max
VIN = 10 kHz Sine Wave, fSAMPLE = 200 kHz
(for L Version: fSAMPLE = 100 kHz @ fCLKIN = 2 MHz)
Intermodulation Distortion (IMD)
Second Order Terms
–78
–78
dB typ
fa = 9.983 kHz, fb = 10.05 kHz, fSAMPLE = 200 kHz
(for L Version: fSAMPLE = 100 kHz @ fCLKIN = 2 MHz)
Third Order Terms
–78
–78
dB typ
fa = 9.983 kHz, fb = 10.05 kHz, fSAMPLE = 200 kHz
(for L Version: fSAMPLE = 100 kHz @ fCLKIN = 2 MHz)
Channel-to-Channel Isolation
–80
–80
dB typ
VIN = 25 kHz
DC ACCURACY
Resolution
12
12
Bits
Integral Nonlinearity
±1
±0.5
LSB max
5 V Reference VDD = 5 V
Differential Nonlinearity
±1
±1
LSB max
Guaranteed No Missed Codes to 12 Bits
Unipolar Offset Error
±5
±5
LSB max
±2
±2
LSB typ
Unipolar Offset Error Match
2(3)
2
LSB max
Positive Full-Scale Error
±5
±5
LSB max
±2
±2
LSB typ
Negative Full-Scale Error
±2
±2
LSB max
Full-Scale Error Match
1
1
LSB max
Bipolar Zero Error
±1
±1
LSB typ
Bipolar Zero Error Match
2
2
LSB typ
ANALOG INPUT
Input Voltage Ranges
0 to VREF
0 to VREF
Volts
i.e., AIN(+) – AIN(–) = 0 to VREF, AIN(–) Can Be
Biased Up But AIN(+) Cannot Go Below AIN(–)
±V
REF/2
±V
REF/2
Volts
i.e., AIN(+) – AIN(–) = –VREF/2 to +VREF/2, AIN(–)
Should Be Biased to +VREF/2 and AIN(+) Can Go
Below AIN(–) But Cannot Go Below 0 V
Leakage Current
±1
±1
µA max
Input Capacitance
20
20
pF typ
REFERENCE INPUT/OUTPUT
REFIN Input Voltage Range
2.3/VDD
2.3/VDD
V min/max
Functional from 1.2 V
Input Impedance
150
150
k
Ω typ
REFOUT Output Voltage
2.3/2.7
2.3/2.7
V min/max
REFOUT Tempco
20
20
ppm/
°C typ
LOGIC INPUTS
Input High Voltage, VINH
2.4
2.4
V min
AVDD = DVDD = 4.5 V to 5.5 V
2.1
2.1
V min
AVDD = DVDD = 3.0 V to 3.6 V
CAL
Pin
3
3
V min
AVDD = DVDD = 4.5 V to 5.5 V
2.4
2.4
V min
AVDD = DVDD = 3.0 V to 3.6 V
Input Low Voltage, VINL
0.8
0.8
V max
AVDD = DVDD = 4.5 V to 5.5 V
0.6
0.6
V max
AVDD = DVDD = 3.0 V to 3.6 V
Input Current, IIN
±10
±10
µA max
Typically 10 nA, VIN = 0 V or VDD
Input Capacitance, CIN
4
10
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
4
4
V min
AVDD = DVDD = 4.5 V to 5.5 V
2.4
2.4
V min
AVDD = DVDD = 3.0 V to 3.6 V
Output Low Voltage, VOL
0.4
0.4
V max
ISINK = 1.6 mA
Floating State Leakage Current
±10
±10
µA max
Floating-State Output Capacitance
4
10
10
pF max
Output Coding
Straight (Natural) Binary
Unipolar Input Range
2s Complement
Bipolar Input Range
AD7859/AD7859L–SPECIFICATIONS1, 2 (AV
DD = DVDD = +3.0 V to +5.5 V, REFIN/REFOUT = 2.5 V
External Reference, fCLKIN = 4 MHz (for L Version: 1.8 MHz (0 C to +70 C) and 1 MHz (–40 C to +85 C)); fSAMPLE = 200 kHz (AD7859) 100 kHz
(AD7859L); SLEEP = Logic High; TA = TMIN to TMAX, unless otherwise noted.) Specifications in () apply to the AD7859L.
–2–
REV. A


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