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AS1537 Fiches technique(PDF) 5 Page - ams AG

No de pièce AS1537
Description  12-Bit, Single Supply, Low-Power, 73ksps A/D Converters
PDF  21 Pages
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Fabricant  AMSCO [ams AG]
Site Internet  http://www.ams.com
Logo AMSCO - ams AG

AS1537 Fiches technique(HTML) 5 Page - ams AG

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www.austriamicrosystems.com
Revision 1.01
6 - 22
AS1536/AS1537
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
6 Electrical Characteristics
VDD = +2.7V to +5.25V, 73ksps, fSCLK = 2.1MHz (50% duty cycle); AS1536:4.7µF capacitor at REF, AS1537: external
reference; VREF = 2.5V applied to REF; TAMB = TMIN to TMAX (unless otherwise specified).
Table 3. Electrical Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Units
DC Accuracy
1
Resolution
12
Bits
Relative Accuracy
2
±1
LSB
DNL
Differential Non-Linearity
No missing codes over temperature
±1
LSB
Offset Error
±6
LSB
Gain Error
3
±6
LSB
Gain Temperature Coefficient
±1
ppm/°C
Dynamic Specifications (10kHz sine-wave input, 0V to 2.5Vp-p, 73ksps, fSCLK =2.1MHz)
SINAD
Signal-to-Noise + Distortion
Ratio
67
70.5
dB
THD
Total Harmonic Distortion
Up to the 5th harmonic
-83
-80
dB
SFDR
Spurious-Free Dynamic Range
80
88
dB
Small-Signal Bandwidth
-3dB rolloff
2.5
MHz
Full-Power Bandwidth
2.5
MHz
Conversion Rate
tCONV
Conversion Time
5.5
7.5
µs
tACQ
Track/Hold Acquisition Time
1.5
µs
Throughput Rate
4
fSCLK = 2.1MHz
73
ksps
tAP
Aperture Delay
Figure 27 on page 14
7ns
Aperture Jitter
<50
ps
Analog Input
Input Voltage Range
0
VREF
V
Input Capacitance
21
pF
Internal Reference (AS1536 only)
REF Output Voltage
TAMB = +25ºC
5
2.47
2.50
2.53
V
REF Short-Circuit Current
45
mA
REF Temperature Coefficient
AS1536
±30
ppm/°C
Load Regulation
6
0 to 0.2mA output load
0.35
mV
CREFBYP
Capacitive Bypass at REF
4.7
µF
External Reference (VREF = 2.5V)
Input Voltage Range
1.00
VDD +
50mV
V
Input Current
100
150
µA
Input Resistance
18
25
k
Ω
REF Input Current in Shutdown
SHDNN = 0V
±0.01
10
µA
CREFBYP
Capacitive Bypass at REF
0.1
µF



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