參數(shù)資料
型號(hào)： AD7823
廠商： Analog Devices, Inc.
英文描述： 8-Bit ADC in 8-Lead microSOIC/DIP(8位A/D轉(zhuǎn)換器)
中文描述： 8位ADC的8引腳microSOIC /文憑（8位的A / D轉(zhuǎn)換器）
文件頁(yè)數(shù)： 2/11頁(yè)
文件大?。?/td> 158K
代理商： AD7823
–2–
REV. A
AD7823–SPECIFICATIONS
Parameter
Y Version
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal to (Noise + Distortion) Ratio
1, 2
Total Harmonic Distortion
1
Peak Harmonic or Spurious Noise
1
Intermodulation Distortion
2
2nd Order Terms
3rd Order Terms
f
IN
= 30 kHz, f
SAMPLE
= 133 kHz
48
–70
–70
dB min
dB typ
dB typ
fa = 48 kHz, fb = 48.5 kHz
–77
–77
dB typ
dB typ
DC ACCURACY
Resolution
Relative Accuracy
1
Differential Nonlinearity (DNL)
1
Gain Error
1
Offset Error
1
Total Unadjusted Error
1
Minimum Resolution for Which
No Missing Codes Are Guaranteed
8
±
0.5
±
0.5
±
1
±
1
±
1
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
8
Bits
ANALOG INPUT
Input Voltage Range
0
V
REF
±
1
15
V min
V max
μ
A max
pF max
Input Leakage Current
2
Input Capacitance
2
REFERENCE INPUTS
2
V
REF
Input Voltage Range
1.2
V
DD
±
1
20
V min
V max
μ
A max
pF max
Input Leakage Current
Input Capacitance
LOGIC INPUTS
2
V
INH,
Input High Voltage
V
INL,
Input Low Voltage
Input Current, I
IN
Input Capacitance, C
IN
2.0
0.4
±
1
8
V min
V max
μ
A max
pF max
Typically 10 nA, V
IN
= 0 V to V
DD
LOGIC OUTPUTS
Output High Voltage, V
OH
Output Low Voltage, V
OL
High Impedance Leakage Current
High Impedance Capacitance
2.4
0.4
±
1
15
V min
V max
μ
A max
pF max
I
SOURCE
= 200
μ
A
I
SINK
= 200
μ
A
CONVERSION RATE
Conversion Time
Track/Hold Acquisition Time
1
4.5
100
μ
s typ
ns max
See DC Acquisition Section
POWER SUPPLY
V
DD
I
DD
2.7–5.5
3.5
Volts
mA max
For Specified Performance
Sampling at 133 kSPS and Logic
Inputs @ V
DD
or 0 V. V
DD
= 5 V
Nominal Supplies
Power Dissipation
Power-Down Mode
I
DD
Power Dissipation
Automatic Power Down
1 kSPS Throughput
10 kSPS Throughput
50 kSPS Throughput
17.5
mW max
1
5
μ
A max
μ
W max
Nominal Supplies
V
DD
= 3 V
54
540
2.7
μ
W max
μ
W max
mW max
NOTES
1
See Terminology.
2
Sample tested during initial release and after any redesign or process change that may affect this parameter.
Specifications subject to change without notice.
(GND = 0 V, V
REF
= +V
DD
. All specifications –40
8
C to +125
8
C unless otherwise noted.)
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