AS1530, AS1531
Data Sheet
austriam
i c r o
systems
5 Electrical Characteristics
AS1530 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 2. AS1530 Electrical Characteristics
Symbol
DC Accuracy
INL
DNL
1
Parameter
Resolution
Relative Accuracy
Differential Nonlinearity
Offset Error
2
Conditions
Min
12
-1
Typ
Max
Units
Bits
+1
+1
+6
LSB
LSB
LSB
No missing codes over temperature
-1
-6
3
-6
+6
LSB
Gain Error
Gain-Error Temperature
ppm/
±1.6
Coefficient
°C
Channel-to-Channel
±0.2
LSB
Offset Error Matching
Dynamic Specifications:
100kHz sinewave input, 2.5Vp-p, 400ksps, 6.4MHz clock, bit
= 0,
pseudo-differential input mode
Signal-to-Noise plus
SINAD
70
dB
Distortion Ratio
THD
Total Harmonic Distortion
Up to the 5th harmonic
-82
dB
Spurious-Free
SFDR
83
dB
Dynamic Range
IMD
Intermodulation Distortion
f
IN1
= 99kHz, f
IN2
= 102kHz
76
dB
Channel-to-Channel
f
IN
= 200kHz, V
IN
= 2.5Vp-p
-85
dB
4
Crosstalk
Full-Power Bandwidth
-3dB point
6
MHz
Full-Linear Bandwidth
SINAD > 68dB
450
kHz
Conversion Rate
Conversion Time
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
- Input Voltage Range: Single-
Ended, Pseudo-Differential,
V
CHy
6
(COM)
and Differential
Multiplexer Leakage Current
Input Capacitance
Internal Reference
V
REF
REF Output Voltage
REF Short-Circuit Current
REF Output Temperature
T
CVREF
Coefficient
Load Regulation
C
BYPREF
7
t
CONV
5
2.5
390
7
<50
0.5
40
Bit
= 1
Bit
= 0
On/off leakage current, V
CHx
= 0 or V
DD1
6.4
60
µs
ns
ns
ps
MHz
%
0
V
REF
-V
REF
+V
REF
/2
/2
-1
±0.001
+1
18
2.48
2.50
30
±25
2.52
V
µA
pF
V
mA
ppm/
°C
mV/
mA
µF
T
AMB
= +25ºC
0 to 1mA output load
4.7
1.2
4.0
10
Capacitive Bypass at REF
www.austriamicrosystems.com
Revision 0.96
4 - 29
AMSCO [ AUSTRIAMICROSYSTEMS AG ]
