EVAL-AD7898CB Просмотр технического описания (PDF) - Analog Devices
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EVAL-AD7898CB Datasheet PDF : 16 Pages
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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
DYNAMIC PERFORMANCE
Signal to (Noise + Distortion) Ratio2
TMIN to TMAX
Total Harmonic Distortion (THD)2
Peak Harmonic or Spurious Noise2
Intermodulation Distortion (IMD)2
2nd Order Terms
3rd Order Terms
Aperture Delay
Aperture Jitter
Full Power Bandwidth–AD7898-10
Full Power Bandwidth–AD7898-3
Full Power Bandwidth–AD7898-10
Full Power Bandwidth–AD7898-3
DC ACCURACY
Resolution
Minimum Resolution for Which
No Missing Codes are Guaranteed
Relative Accuracy2
Differential Nonlinearity2
Positive Full-Scale Error2
Negative Full-Scale Error2
Bipolar Zero Error
ANALOG INPUT
AD7898-10
Input Voltage Range
Input Resistance
AD7898-3
Input Voltage Range
Input Resistance
REFERENCE INPUT
REF IN Input Voltage Range
Input Current
Input Capacitance2, 3
LOGIC INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL4
Input Current, IIN
Input Capacitance, CIN2, 3
LOGIC OUTPUTS
Output High Voltage, VOH
Output Low Voltage, VOL
Floating-State Leakage Current
Floating-State Output Capacitance2, 3
Output Coding
A Versionl
71
–78
–89
–88
–88
20
75
3.6
4.7
2.15
2.4
12
12
±1
± 0.9
±3
±3
±4
± 10
24
± 2.5
5
2.375/2.625
1
10
VDRIVE × 0.7
VDRIVE × 0.3
±1
10
VDRIVE – 0.4
0.4
± 10
10
Twos Complement
Unit
Test Conditions/Comments
dB min
dB max
dB typ
dB typ
dB typ
ns typ
ps typ
MHz typ
MHz typ
MHz typ
MHz typ
Bits
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
fIN = 30 kHz Sine Wave
fIN = 30 kHz Sine Wave
fIN = 30 kHz Sine Wave
fa = 29.1 kHz, fb = 29.9 kHz
@ 3 dB
@ 3 dB
@ 1 dB
@ 1 dB
Volts
kΩ min
Volts
kΩ min
V min/V max
µA max
pF max
V min
V max
µA max
pF max
2.5 V ± 5%
Typically 10 nA, VIN = 0 V or VDRIVE
V min
V max
µA max
pF max
ISOURCE = 200 µA; VDRIVE = 2.7 V to 5.25 V
ISINK = 200 µA
CONVERSION RATE
Mode 0 Operation
220
215
Mode 1 Operation
220
POWER REQUIREMENTS
VDD
VDRIVE
IDD Static
IDD Operational
Power Dissipation
4.75 to 5.25
2.7 to 5.25
4.25
4.5
22.5
POWER-DOWN MODE
IDD @ 25°C
5
TMIN to TMAX
20
Power Dissipation @ 25°C (Operational)
25
NOTES
1Temperature ranges are as follows: A Version: –40°C to +85°C.
2See Terminology.
3Sample tested @ 25°C to ensure compliance.
4Operational with VDRIVE = 2.35 V, with Input Low Voltage, VINL = 0.4 V
Specifications subject to change without notice.
kSPS max
kSPS max
kSPS max
With VDRIVE = 5 V ± 5%
With VDRIVE = 2.7 V to 3.6 V
V min to V max
V min to V max
mA max
mA max
mW max
For Specified Performance
For Specified Performance
Digital Inputs @ VDRIVE
Digital Inputs @ VDRIVE
µA max
µA max
µW max
Digital Inputs @ GND, VDD = 5 V ± 5%
Digital Inputs @ GND, VDD = 5 V ± 5%
VDD = 5 V
–2–
REV. A
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