AD7892ANZ-1 데이터 시트보기 (PDF) - Analog Devices
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AD7892ANZ-1 Datasheet PDF : 14 Pages
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AD7892–SPECIFICATIONS (VDD = +5 V ؎ 5%, AGND = DGND = 0 V, REF IN = +2.5 V. All specifications TMIN to TMAX
unless otherwise noted.)
Parameter
A Versions1 B Versions S Version2 Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
AD7892-1, AD7892-2
Signal to (Noise + Distortion) Ratio3 70
Total Harmonic Distortion3
–78
Peak Harmonic or Spurious Noise3 –79
Intermodulation Distortion3
2nd Order Terms
–78
3rd Order Terms
–78
AD7892-3
Signal to (Noise + Distortion) Ratio3 70
Total Harmonic Distortion3
–78
Peak Harmonic or Spurious Noise3 –79
Intermodulation Distortion3
2nd Order Terms
–78
3rd Order Terms
–78
70
70
–78
–78
–79
–79
–78
–78
–78
–78
70
–78
–79
–78
–78
dB min
dB max
dB max
dB max
dB max
dB min
dB max
dB max
dB max
dB max
fIN = 100 kHz. fSAMPLE = 500 kSPS
typ –84 dB
fa = 49 kHz, fb = 50 kHz
typ –84 dB
typ –84 dB
fIN = 100 kHz. fSAMPLE = 600 kSPS
fa = 49 kHz, fb = 50 kHz
DC ACCURACY
Resolution
12
12
12
Minimum Resolution for Which No
Missing Codes Are Guaranteed
12
12
12
Relative Accuracy3
± 1.5
±1
±1
Differential Nonlinearity3
±1
±1
±1
AD7892-1
Positive Full-Scale Error3
±4
Negative Full-Scale Error3
±4
Bipolar Zero Error3
±3
±4
±5
±4
±5
±2
±3
AD7892-3
Positive Full-Scale Error3
±4
±4
Negative Full-Scale Error3
±4
±4
Bipolar Zero Error3
±4
±3
AD7892-2
Positive Full-Scale Error3
±5
±5
±5
Unipolar Offset Error3
±4
±3
±4
Bits
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
ANALOG INPUT
AD7892-1
Input Voltage Range
Input Voltage Range
Input Resistance
AD7892-2
Input Voltage Range on VIN1
Input Current
Input Voltage Range on VIN2
AD7892-3
Input Voltage Range on VIN1
Input Resistance
± 10
±5
8
0 to +2.5
10
± 50
± 2.5
2
± 10
±5
8
0 to +2.5
10
± 50
± 2.5
2
± 10
±5
8
0 to +2.5
50
± 50
Volts
Volts
kΩ min
Volts
nA max
mV max
Volts
kΩ min
Input Applied to VIN1 with VIN2 Grounded
Input Applied to VIN1 and VIN2
Input Applied to VIN1 with VIN2 Grounded
Input Applied to VIN1
Input Applied to VIN1
REFERENCE OUTPUT/INPUT
REF IN Input Voltage Range
Input Impedance
Input Capacitance4
REF OUT Output Voltage
REF OUT Error @ +25°C
TMIN to TMAX
REF OUT Temperature Coefficient
REF OUT Output Impedance
2.375/2.625
1.6
10
2.5
± 10
± 20
25
5.5
2.375/2.625
1.6
10
2.5
± 10
± 20
25
5.5
2.375/2.625
1.6
10
2.5
± 10
± 25
25
5.5
V min/V max
kΩ min
pF max
V nom
mV max
mV max
ppm/°C typ
kΩ nom
2.5 V ± 5%
Resistor Connected to Internal Reference Node
LOGIC INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IIN
Input Capacitance, CIN4
2.4
2.4
2.4
0.8
0.8
0.8
± 10
± 10
± 10
10
10
10
V min
V max
µA max
pF max
VDD = 5 V ± 5%
VDD = 5 V ± 5%
VIN = 0 V to VDD
–2–
REV. C
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