參數(shù)資料
型號(hào)： AD7714YR
廠商： ANALOG DEVICES INC
元件分類(lèi)： ADC
英文描述： 3 V/5 V, CMOS, 500 uA Signal Conditioning ADC
中文描述： 5-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO24
封裝： WSOIC-24
文件頁(yè)數(shù)： 2/40頁(yè)
文件大?。?/td> 306K
代理商： AD7714YR
Parameter
STATIC PERFORMANCE
No Missing Codes
A Versions
1
Units
Conditions/Comments
24
22
18
15
12
See Tables I to IV
±
0.0015
See Note 2
0.5
0.3
See Note 2
0.5
0.3
See Note 2
0.5
0.3
See Note 2
0.5
±
0.0015
1
0.6
Bits min
Bits min
Bits min
Bits min
Bits min
Guaranteed by Design. Bipolar Mode. For Filter Notches
≤
60 Hz
For Filter Notch = 100 Hz
For Filter Notch = 250 Hz
For Filter Notch = 500 Hz
For Filter Notch = 1 kHz
Depends on Filter Cutoffs and Selected Gain
Filter Notches
≤
60 Hz
Output Noise
Integral Nonlinearity
Unipolar Offset Error
Unipolar Offset Drift
3
% of FSR max
μ
V/
°
C typ
μ
V/
°
C typ
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
Bipolar Zero Error
Bipolar Zero Drift
3
μ
V/
°
C typ
μ
V/
°
C typ
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
Positive Full-Scale Error
4
Full-Scale Drift
μ
V/
°
C typ
μ
V/
°
C typ
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
Gain Error
6
Gain Drift
3, 7
Bipolar Negative Full-Scale Error
Bipolar Negative Full-Scale Drift
3
ppm of FSR/
°
C typ
% of FSR max
μ
V/
°
C typ
μ
V/
°
C typ
Typically
±
0.0004%
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
Specifications for AIN and REF IN Unless Noted
At DC. Typically 102 dB
For Filter Notches of 10
Hz
, 25
Hz
, 50 Hz,
±
0.02
×
f
NOTCH
For Filter Notches of 10
Hz
, 30
Hz
, 60 Hz,
±
0.02
×
f
NOTCH
For Filter Notches of 10
Hz
, 25
Hz
, 50 Hz,
±
0.02
×
f
NOTCH
For Filter Notches of 10
Hz
, 30
Hz
, 60 Hz,
±
0.02
×
f
NOTCH
AIN for BUFFER = 0 and REF IN
AIN for BUFFER = 0 and REF IN
ANALOG INPUTS/REFERENCE INPUTS
Input Common-Mode Rejection (CMR)
Normal-Mode 50 Hz Rejection
Normal-Mode 60 Hz Rejection
8
Common-Mode 50 Hz Rejection
8
Common-Mode 60 Hz Rejection
8
Common-Mode Voltage Range
9
Absolute AIN/REF IN Voltage
9
90
100
100
150
150
AGND to AV
DD
AGND – 30 mV
AV
DD
+ 30 mV
AGND + 50 mV
AV
DD
– 1.5 V
1
7
0 to +V
/GAIN
11
±
V
REF
/GAIN
GAIN
×
f
CLKIN
/64
f
CLKIN
/8
+2.5
f
CLK IN
/64
dB min
dB min
dB min
dB min
dB min
V min to V max
V min
V max
V min
V max
nA max
pF max
nom
nom
Absolute/Common-Mode AIN Voltage
9
BUFFER = 1. A Version
AIN Input Current
8
AIN Sampling Capacitance
8
AIN Differential Voltage Range
10
A Version
Unipolar Input Range (B/U Bit of Filter High Register = 1)
Bipolar Input Range (B/U Bit of Filter High Register = 0)
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
±
1% for Specified Performance. Functional with Lower V
REF
AIN Input Sampling Rate, f
S
REF IN(+) – REF IN(–) Voltage
REF IN Input Sampling Rate, f
S
LOGIC INPUTS
Input Current
All Inputs Except MCLK IN
V
INL
, Input Low Voltage
V
INL
, Input Low Voltage
V
INH
, Input High Voltage
V
, Input High Voltage
MCLK IN Only
V
INL
, Input Low Voltage
V
INL
, Input Low Voltage
V
INH
, Input High Voltage
V
INH
, Input High Voltage
LOGIC OUTPUTS (Including MCLK OUT)
V
OL
, Output Low Voltage
V
OL
, Output Low Voltage
V
OH
, Output High Voltage
V
, Output High Voltage
Floating State Leakage Current
Floating State Output Capacitance
13
Data Output Coding
V nom
±
10
μ
A max
0.8
0.4
2.4
2.0
V max
V max
V min
V min
DV
DD
= +5 V
DV
DD
= +3.3V
DV
DD
= +5 V
DV
DD
= +3.3 V
0.8
0.4
3.5
2.5
V max
V max
V min
V min
DV
DD
= +5V
DV
DD
= +3.3V
DV
DD
= +5V
DV
DD
= +3.3V
0.4
0.4
4.0
DV
DD
– 0.6 V
±
10
9
Binary
Offset Binary
V max
V max
V min
V min
μ
A max
pF typ
I
SINK
= 800
μ
A Except for MCLK OUT.
12
DV
DD
= +5 V
I
SINK
= 100
μ
A Except for MCLK OUT.
12
DV
= +3.3 V
I
SOURCE
= 200
μ
A Except for MCLK OUT.
DV
DD
= +5V
I
SOURCE
= 100
μ
A Except for MCLK OUT.
12
DV
DD
= +3.3V
Unipolar Mode
Bipolar Mode
NOTES
1
Temperature range is as follows: A Versions: –40
°
C to +85
°
C.
2
A calibration is effectively a conversion so these errors will be of the order of the conversion noise shown in Tables I to IV. This applies after calibration at the temperature of interest.
3
Recalibration at any temperature will remove these drift errors.
4
Positive Full-Scale Error includes Zero-Scale Errors (Unipolar Offset Error or Bipolar Zero Error) and applies to both unipolar and bipolar input ranges.
5
Full-Scale Drift includes Zero-Scale Drift (Unipolar Offset Drift or Bipolar Zero Drift) and applies to both unipolar and bipolar input ranges.
6
Gain Error does not include Zero-Scale Errors. It is calculated as Full-Scale Error—Unipolar Offset Error for unipolar ranges and Full-Scale Error—Bipolar Zero Error for
bipolar ranges.
AD7714-5–SPECIFICATIONS
(AV
DD
= +5V, DV
DD
= +3.3V or +5V, REF IN(+) = +2.5V; REFIN(–) = AGND;
f
CLK IN
= 2.4576MHz unless otherwise noted. All specifications T
MIN
to T
MAX
unless otherwise noted.)
REV. C
–2–
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