參數(shù)資料
型號(hào)： AS1521-T
廠商： AUSTRIAMICROSYSTEMS AG
元件分類(lèi)： ADC
英文描述： 10-Bit, 8-Ch, 300ksps, ADC; Package Type: TSSOP-20
封裝： TSSOP-20
文件頁(yè)數(shù)： 5/29頁(yè)
文件大?。?/td> 1043K
代理商： AS1521-T
www.austriamicrosystems.com
Revision 1.00
5 - 29
AS1520/AS1521
Data Sheet
- Electrical Characteristics
6 Electrical Characteristics
AS1520 Electrical Characteristics
V
DD1
= V
DD2
= V
DD3
= +4.5 to +5.5V, COM = GND, f
SCLK
= 6.4MHz, 50% duty cycle, 16 clocks/conversion cycle
(400ksps), external +2.5V at REF, REFADJ = V
DD1
, T
AMB
= T
MIN
to T
MAX
(unless otherwise specified). Typ values at
T
AMB
= +25oC.
Table 3. AS1520 Electrical Characteristics
Symbol
Parameter
Conditions
DC
Accuracy
1
Resolution
INL
Relative Accuracy
2
DNL
Differential Nonlinearity
No missing codes over temperature
Offset Error
Gain Error
3
Gain-Error Temperature
Coefficient
Channel-to-Channel
Offset Error Matching
Dynamic Specifications
: 100kHz sinewave input, 2.5Vp-p, 400ksps, 6.4MHz clock, bit
RANGE (page 15)
= 0,
pseudo-differential input mode
Signal-to-Noise plus
Distortion Ratio
THD
Total Harmonic Distortion
Up to the 5th harmonic
Spurious-Free
Dynamic Range
IMD
Intermodulation Distortion
f
IN1
= 99kHz, f
IN2
= 102kHz
Channel-to-Channel
Crosstalk
4
Full-Power Bandwidth
Full-Linear Bandwidth
SINAD > 68dB
Conversion Rate
t
CONV
Conversion Time
5
t
ACQ
Track/Hold Acquisition Time
t
AD
Aperture Delay
t
AJ
Aperture Jitter
f
SCLK
Serial Clock Frequency
Duty Cycle
Analog Inputs:
CH0:CH7, COM
V
CHx
-
V
CHy
(COM)
and Differential
6
Multiplexer Leakage Current
On/off leakage current, V
CHx
= 0 or V
DD1
Input Capacitance
Internal Reference
V
REF
REF Output Voltage
T
AMB
= +25oC
REF Short-Circuit Current
REF Output Temperature
Coefficient
Min
Typ
Max
Units
10
-0.5
-1
-3
-3
Bits
LSB
LSB
LSB
LSB
ppm/
°C
+0.5
+1
+3
+3
±1.6
±0.2
LSB
SINAD
60
dB
70
dB
SFDR
70
dB
76
dB
f
IN
= 200kHz, V
IN
= 2.5Vp-p
-85
dB
-3dB point
6
MHz
kHz
450
2.5
μs
ns
ns
ps
MHz
%
390
7
<50
0.5
40
6.4
60
Input Voltage Range: Single-
Ended, Pseudo-Differential,
Bit
RANGE (page 15)
= 1
0
V
REF
+V
REF
/2
+1
V
Bit
RANGE (page 15)
= 0
-V
REF
/2
-1
±0.001
18
μA
pF
2.48
2.50
30
2.52
V
mA
ppm/
°C
mV/
mA
μF
T
CVREF
±25
Load Regulation
7
0 to 1mA output load
1.2
4.0
C
BYPREF
Capacitive Bypass at REF
4.7
10
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