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AD7898AR-10REEL датащи(PDF) 2 Page - Analog Devices

номер детали AD7898AR-10REEL
подробное описание детали  5 V, 12-Bit, Serial 220 kSPS ADC in an 8-Lead Package
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD7898AR-10REEL датащи(HTML) 2 Page - Analog Devices

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–2–
REV. A
AD7898–SPECIFICATIONS1
(VDD = 4.75 V to 5.25 V, VDRIVE = 2.7 V to 5.25 V; REF IN = 2.5 V. Specifications apply
to both Mode 0 and Mode 1 operations; TA = TMIN to TMAX, unless otherwise noted.)
Parameter
A Version
l
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal to (Noise + Distortion) Ratio
2
TMIN to TMAX
71
dB min
fIN = 30 kHz Sine Wave
Total Harmonic Distortion (THD)
2
–78
dB max
fIN = 30 kHz Sine Wave
Peak Harmonic or Spurious Noise
2
–89
dB typ
fIN = 30 kHz Sine Wave
Intermodulation Distortion (IMD)
2
fa = 29.1 kHz, fb = 29.9 kHz
2nd Order Terms
–88
dB typ
3rd Order Terms
–88
dB typ
Aperture Delay
20
ns typ
Aperture Jitter
75
ps typ
Full Power Bandwidth–AD7898-10
3.6
MHz typ
@ 3 dB
Full Power Bandwidth–AD7898-3
4.7
MHz typ
@ 3 dB
Full Power Bandwidth–AD7898-10
2.15
MHz typ
@ 1 dB
Full Power Bandwidth–AD7898-3
2.4
MHz typ
@ 1 dB
DC ACCURACY
Resolution
12
Bits
Minimum Resolution for Which
12
Bits
No Missing Codes are Guaranteed
Relative Accuracy
2
±1
LSB max
Differential Nonlinearity
2
±0.9
LSB max
Positive Full-Scale Error
2
±3
LSB max
Negative Full-Scale Error
2
±3
LSB max
Bipolar Zero Error
±4
LSB max
ANALOG INPUT
AD7898-10
Input Voltage Range
±10
Volts
Input Resistance
24
k
Ω min
AD7898-3
Input Voltage Range
±2.5
Volts
Input Resistance
5
k
Ω min
REFERENCE INPUT
REF IN Input Voltage Range
2.375/2.625
V min/V max
2.5 V
± 5%
Input Current
1
µA max
Input Capacitance
2, 3
10
pF max
LOGIC INPUTS
Input High Voltage, VINH
VDRIVE
× 0.7
V min
Input Low Voltage, VINL
4
VDRIVE
× 0.3
V max
Input Current, IIN
±1
µA max
Typically 10 nA, VIN = 0 V or VDRIVE
Input Capacitance, CIN
2, 3
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
VDRIVE – 0.4
V min
ISOURCE = 200
µA; V
DRIVE = 2.7 V to 5.25 V
Output Low Voltage, VOL
0.4
V max
ISINK = 200
µA
Floating-State Leakage Current
±10
µA max
Floating-State Output Capacitance
2, 3
10
pF max
Output Coding
Twos Complement
CONVERSION RATE
Mode 0 Operation
220
kSPS max
With VDRIVE = 5 V
± 5%
215
kSPS max
With VDRIVE = 2.7 V to 3.6 V
Mode 1 Operation
220
kSPS max
POWER REQUIREMENTS
VDD
4.75 to 5.25
V min to V max
For Specified Performance
VDRIVE
2.7 to 5.25
V min to V max
For Specified Performance
IDD Static
4.25
mA max
Digital Inputs @ VDRIVE
IDD Operational
4.5
mA max
Digital Inputs @ VDRIVE
Power Dissipation
22.5
mW max
POWER-DOWN MODE
IDD @ 25
°C5
µA max
Digital Inputs @ GND, VDD = 5 V
± 5%
TMIN to TMAX
20
µA max
Digital Inputs @ GND, VDD = 5 V
± 5%
Power Dissipation @ 25
°C (Operational)
25
µW max
VDD = 5 V
NOTES
1Temperature ranges are as follows: A Version: –40
°C to +85°C.
2See Terminology.
3Sample tested @ 25
°C to ensure compliance.
4Operational with V
DRIVE = 2.35 V, with Input Low Voltage, VINL = 0.4 V
Specifications subject to change without notice.


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