AS1526/AS1527
Data Sheet
- E l e c t r i c a l
Characteristics
6 Electrical Characteristics
V
DD
= +2.7 to +3.6V, 73ksps, f
SCLK
= 2.1MHz (50% duty cycle); AS1526:4.7µF capacitor at REF, AS1527: external ref-
erence; V
REF
= 2.5V applied to REF; T
AMB
= T
MIN
to T
MAX
(unless otherwise specified).
Table 3. Electrical Characteristics
Symbol
DC Accuracy
1
Parameter
Conditions
Min
Typ
Max
Units
Resolution
Relative Accuracy
DNL
2
10
±0.5
No missing codes over temperature
±1
±2
±2
±1
Bits
LSB
LSB
LSB
LSB
ppm/°C
Differential Non-Linearity
Offset Error
Gain Error
3
Gain Temperature Coefficient
Dynamic Specifications
(10kHz sine-wave input, 0V to 2.5Vp-p, 73ksps, f
SCLK
=2.1MHz)
SINAD
THD
SFDR
Signal-to-Noise + Distortion
Ratio
Total Harmonic Distortion
Spurious-Free Dynamic Range
Small-Signal Bandwidth
Full-Power Bandwidth
Conversion Rate
t
CONV
t
ACQ
Conversion Time
Track/Hold Acquisition Time
Throughput Rate
t
AP
Aperture Delay
Aperture Jitter
Analog Input
Input Voltage Range
Input Capacitance
Internal Reference
(AS1526 only)
REF
Output Voltage
REF
Short-Circuit Current
REF
Temperature Coefficient
Load Regulation
C
REFBYP
6
4
61
Up to the 5th harmonic
-70
70
-3dB rolloff
2.5
2.5
dB
dB
dB
MHz
MHz
5.5
7.5
1.5
µs
µs
ksps
ns
ps
f
SCLK
= 2.1MHz
7
<50
73
0
21
V
REF
V
pF
T
AMB
= +25ºC
5
2.47
2.50
2.53
45
V
mA
ppm/°C
mV
µF
AS1526
0 to 0.2mA output load
4.7
±30
0.35
Capacitive Bypass at
REF
External Reference
(V
REF
= 2.5V)
Input Voltage Range
Input Current
Input Resistance
REF
Input Current in Shutdown
C
REFBYP
Capacitive Bypass at
REF
SHDNN = 0V
0.1
18
1.00
100
25
±0.01
10
V
DD
+
50mV
150
V
µA
kΩ
µA
µF
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