參數(shù)資料
型號： ADS7800JU
英文描述： 12-Bit 3ms Sampling ANALOG-TO-DIGITAL CONVERTER
中文描述： 12位為3ms采樣模擬到數(shù)字轉換器
文件頁數(shù)： 2/12頁
文件大?。?/td> 122K
代理商： ADS7800JU
ADS7800
2
SPECIFICATIONS
ELECTRICAL
At T
A
= T
MIN
to T
MAX
, Sampling Frequency, f
S
, = 333kHz, –V
S
= –15V, V
S
= +5V, unless otherwise specified.
ADS7800JP/JU/AH
ADS7800KP/KU/BH
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
RESOLUTION
12
*
Bits
ANALOG INPUT
Voltage Ranges
Impedance
±
10V/
±
5V
6.3
4.2
*
*
*
V
k
k
±
10V Range
±
5V Range
4.4
2.9
8.1
5.4
*
*
*
*
THROUGHPUT SPEED
Conversion Time
Complete Cycle
Throughput Rate
Conversion Alone
Acquisition + Conversion
2.5
2.6
380
2.7
3.0
*
*
*
*
*
μ
s
μ
s
kHz
333
*
DC ACCURACY
Full Scale Error
(1)
Full Scale Error Drift
Integral Linearity Error
Differential Linearity Error
No Missing Codes
Bipolar Zero
(1)
Bipolar Zero Drift
Power Supply Sensitivity
±
0.50
±
0.35
%
6
*
ppm/
°
C
LSB
(2)
LSB
±
1
±
1
±
1/2
±
3/4
Guaranteed
Guaranteed
±
4
±
2
LSB
ppm/
°
C
1
*
–16.5V < –V
S
< –13.5V
–12.6V < –V
S
< –11.4V
+4.75V < V
S
< +5.25V
±
1/2
±
1/2
±
1
*
*
LSB
LSB
LSB
LSB
±
1/2
Transition Noise
(3)
0.1
*
AC ACCURACY
Spurious-Free Dynamic Range
Total Harmonic Distortion
Two-tone Intermodulation Distortion
f
IN
= 47kHz
f
IN
= 47kHz
f
IN1
= 24.4kHz (–6dB)
f
IN2
= 28.5kHz (–6dB)
f
IN
= 47kHz
f
IN
= 47kHz
74
77
–77
–77
77
80
–80
–80
dB
(4)
dB
dB
–74
–74
–77
–77
Signal-to-(Noise + Distortion) Ratio
Signal-to-Noise Ratio (SNR)
67
68
70
71
69
70
72
73
dB
dB
SAMPLING DYNAMICS
Aperture Delay
Aperture Jitter
Transient Response
(5)
Overvoltage Recovery
(6)
13
150
130
150
*
*
*
*
ns
ps, rms
ns
ns
INTERNAL REFERENCE VOLTAGE
Voltage
Source Current Available
for External Loads
1.9
2.0
10
2.1
*
*
*
*
V
μ
A
DIGITAL INPUTS
Logic Levels
V
IL
V
IH
I
IL
I
IH
–0.3
+2.4
–5
+5
+0.8
+5.3
*
*
*
*
*
*
V
V
μ
A
μ
A
DIGITAL OUTPUTS
Data Format
Data Coding
V
OL
V
OH
I
LEAKAGE
(High-Z State)
Parallel, 12-bit or 8-bit/4-bit
Binary Offset Binary
+0.4
+5.0
±
5
I
SINK
= 1.6mA
I
SOURCE
= 500
μ
A
0.0
+2.4
*
*
*
*
*
V
V
μ
A
±
0.1
*
POWER SUPPLIES
Rated Voltage
–V
V
S
(V
SA
and V
SD
)
Current
–I
S
I
Power Consumption
–11.4
+4.75
–15
+5.0
–16.5
+5.25
*
*
*
*
*
*
V
V
3.5
18
135
6
*
*
*
*
*
*
mA
mA
mW
25
215
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