參數(shù)資料
型號(hào): AD7703
廠商: Analog Devices, Inc.
英文描述: LC2MOS 20-Bit A/D Converter
中文描述: LC2MOS 20位A / D轉(zhuǎn)換器
文件頁(yè)數(shù): 2/16頁(yè)
文件大?。?/td> 251K
代理商: AD7703
REV. D
–2–
AD7703–SPECIFICATIONS
BP/
UP
= +5 V; MODE = +5 V; A
IN
Source Resistance = 1 k
V
1
wth 1 nF to AGND at A
IN
unless otherwse noted.)
Parameter
A/S Versions
2
B Version
2
C Version
2
Units
T est Conditions/Comments
ST AT IC PERFORMANCE
Resolution
Integral Nonlinearity, T
MIN
to T
MAX
+25
°
C
T
to T
Differential Nonlinearity, T
MIN
to T
MAX
Positive Full-Scale Error
3
20
±
0.0015
±
0.003
±
0.003
±
0.5
±
4
±
16
±
19/
±
37
±
4
±
16
±
26
±
67 +48/–400
±
4
±
16
±
13
±
34 +24/–200
±
8
±
32
±
10/
±
20
1.6
20
±
0.0007
±
0.0015
±
0.0015
±
0.5
±
4
±
16
±
19
±
4
±
16
±
26
±
67
±
4
±
16
±
13
±
34
±
8
±
32
±
10
1.6
20
±
0.0003
±
0.0008
±
0.0012
±
0.5
±
4
±
16
±
19
±
4
±
16
±
26
±
67
±
4
±
16
±
13
±
34
±
8
±
32
±
10
1.6
Bits
% FSR typ
% FSR max
% FSR max
LSB typ
LSB typ
LSB max
LSB typ
LSB typ
LSB max
LSB typ
LSB typ
LSB typ
LSB max
LSB typ
LSB typ
LSB typ
LSB max
LSB typ
LSB rms typ
Guaranteed No Missing Codes
Full-Scale Drift
4
Unipolar Offset Error
3
Unipolar Offset Drift
4
T emp Range: 0
°
C to +70
°
C
Specified T emp Range
Bipolar Zero Error
3
Bipolar Zero Drift
4
T emp Range: 0
°
C to +70
°
C
Specified T emp Range
Bipolar Negative Full-Scale Errors
3
Bipolar Negative Full-Scale Drift
4
Noise (Referred to Output)
DYNAMIC PERFORMANCE
Sampling Frequency, f
S
Output Update Rate, f
Filter Corner Frequency, f
Settling T ime to
±
0.0007% FS
f
CLK IN
/256
f
CLK IN
/1024
f
/409,600
507904/f
CLK IN
f
CLK IN
/256
f
CLK IN
/1024
f
/409,600
507904/f
CLK IN
f
CLK IN
/256
f
CLK IN
/1024
f
/409,600
507904/f
CLK IN
Hz
Hz
Hz
sec
For Full-Scale Input Step
SYST EM CALIBRAT ION
Positive Full-Scale Calibration Range
Positive Full-Scale Overrange
V
REF
+ 0.1
V
REF
+ 0.1
V
REF
+ 0.1
V
REF
+ 0.1
V
REF
+ 0.1
V
REF
+ 0.1
V max
V max
System Calibration Applies to
Unipolar and Bipolar Ranges.
Negative Full-Scale Overrange
Maximum Offset Calibration Ranges
5, 6
Unipolar Input Range
Bipolar Input Range
Input Span
7
–(V
REF
+ 0.1)
–(V
REF
+ 0.1)
–(V
REF
+ 0.1)
V max
After Calibration, if A
> V
REF
,
the Device Will Output All 1s.
If A
IN
< 0 (Unipolar) or –V
REF
(Bipolar), the Device Will
Output all 0s
–(V
REF
+ 0.1)
–0.4 V
REF
to +0.4 V
REF
0.8 V
REF
2 V
REF
+ 0.2
–(V
REF
+ 0.1)
–0.4 V
REF
to +0.4 V
REF
0.8 V
REF
2 V
REF
+ 0.2
–(V
REF
+ 0.1)
–0.4 V
REF
to +0.4 V
REF
0.8 V
REF
2 V
REF
+ 0.2
V max
V max
V min
V max
ANALOG INPUT
Unipolar Input Range
Bipolar Input Range
Input Capacitance
Input Bias Current
1
0 to +2.5
±
2.5
20
1
0 to +2.5
±
2.5
20
1
0 to +2.5
±
2.5
20
1
Volts
Volts
pF typ
nA typ
LOGIC INPUT S
All Inputs except CLK IN
V
INL
, Input Low Voltage
V
, Input High Voltage
CLK IN
V
INL
, Input Low Voltage
V
, Input High Voltage
I
IN
, Input Current
0.8
2.0
0.8
2.0
0.8
2.0
V max
V min
0.8
3.5
10
0.8
3.5
10
0.8
3.5
10
V max
V min
μ
A max
LOGIC OUT PUT S
V
OL
, Output Low Voltage
V
OH
, Output High Voltage
Floating State Leakage Current
Floating State Output Capacitance
0.4
DV
DD
–1
±
10
9
0.4
DV
DD
–1
±
10
9
0.4
DV
DD
–1
±
10
9
V max
V min
μ
A max
pF typ
I
SINK
= 1.6 mA
I
SOURCE
= 100
μ
A
POWER REQUIREMENT S
Power Supply Voltages
Analog Positive Supply (AV
DD
)
Digital Positive Supply (DV
DD
)
Analog Negative Supply (AV
SS
)
Digital Negative Supply (DV
SS
)
Calibration Memory Retention
Power Supply Voltage
4.5/5.5
4.5/AV
DD
–4.5/–5.5
–4.5/–5.5
4.5/5.5
4.5/AV
DD
–4.5/–5.5
–4.5/–5.5
4.5/5.5
4.5/AV
DD
–4.5/–5.5
–4.5/–5.5
V min/V max
V min/V max
V min/V max
V min/V max
For Specified Performance
2.0
2.0
2.0
V min
(T
A
= +25
8
C; AV
DD
= DV
DD
= +5 V; AV
SS
= DV
SS
= –5 V; V
REF
= +2.5 V; f
CLKIN
= 4.096 MHz;
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