參數(shù)資料
型號： AS1520-T
廠商： AUSTRIAMICROSYSTEMS AG
元件分類： ADC
英文描述： 10-Bit, 8-Ch, 400ksps, ADC; Package Type: TSSOP-20
封裝： TSSOP-20
文件頁數(shù)： 7/29頁
文件大?。?/td> 1043K
代理商： AS1520-T
www.austriamicrosystems.com
Revision 1.00
7 - 29
AS1520/AS1521
Data Sheet
- Electrical Characteristics
AS1521 Electrical Characteristics
V
DD1
= V
DD2
=
V
DD3
= +2.7 to +3.6V, COM = GND, f
SCLK
= 4.8MHz, 50% duty cycle, 16 clocks/conversion cycle
(300ksps), 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 4. AS1521 Electrical Characteristics
Symbol
Parameter
Conditions
DC Accuracy
1
Resolution
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
: 75kHz sinewave input, 2.5Vp-p, 300ksps, 4.8MHz 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
= 73kHz, f
IN2
= 77kHz
Channel-to-Channel
Crosstalk
4
Full-Power Bandwidth
-3dB point
Full-Linear Bandwidth
SINAD > 68dB
Conversion Rate
t
CONV
Conversion Time
5
Normal operation
t
ACQ
Track/Hold Acquisition Time
Normal operation
t
AD
Aperture Delay
t
AJ
Aperture Jitter
f
SCLK
Serial Clock Frequency
Normal operation
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 A
VDD
Input Capacitance
Internal Reference
V
REF
REF Output Voltage
T
AMB
= +25°C
REF Short-Circuit Current
9. Electrical characteristics are guaranteed from V
DD1(MIN)
= V
DD2(MIN)
= V
DD3(MIN)
to V
DD1(MAX)
= V
DD2(MAX)
=
V
DD3(MAX)
. For operations beyond this range, see
Typical Operating Characteristics on page 11
. For guaranteed
specifications beyond the limits, contact austriamicrosystems, AG.
10. AIN = mid-scale; bit
RANGE (page 15)
= 1; tested with 20pF on DOUT, 20pF on SSTRB, and f
SCLK
= 6.4MHz
@ GND to V
DD2
.
11. SCLK = DIN = GND, CSN = V
DD2
.
Min
Typ
Max
Units
10
Bits
INL
-0.5
+0.5
LSB
-1
-3
+1
+3
LSB
LSB
-3
+3
LSB
±1.6
ppm/
°C
±0.2
LSB
SINAD
60
dB
70
dB
SFDR
70
dB
76
dB
f
IN
= 150kHz, V
IN
= 2.5Vp-p
80
dB
6
MHz
kHz
350
3.3
μs
520
ns
ns
ps
MHz
%
7
<50
0.5
40
4.8
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
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