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AS1531-T Datasheet(PDF) 6 Page - ams AG

Part # AS1531-T
Description  12-Bit, Single-Supply, Low-Power, 400/300ksps A/D Converters
Download  29 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS1531-T Datasheet(HTML) 6 Page - ams AG

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www.austriamicrosystems.com
Revision 0.96
6 - 29
AS1530, AS1531
austriamicrosystems
Data Sheet
AS1531 Electrical Characteristics
VDD1 = VDD2 = VDD3 = +2.7 to +3.6V, COM = GND, fSCLK = 4.8MHz, 50% duty cycle, 16 clocks/conversion cycle
(300ksps), external +2.5V at REF, REFADJ = VDD1, TAMB = TMIN to TMAX (unless otherwise specified). Typ values at
TAMB = +25ºC.
9. Electrical characteristics are guaranteed from VDD1(MIN) = VDD2(MIN) = VDD3(MIN) to VDD1(MAX) = VDD2(MAX) =
VDD3(MAX). For operations beyond this range, see Typical Operating Characteristics on page 10. 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 fSCLK = 6.4MHz
@ GND to VDD2.
11. SCLK = DIN = GND, CSN = VDD2.
Table 3. AS1531 Electrical Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Units
DC Accuracy
1
Resolution
12
Bits
INL
Relative Accuracy
2
-1
+1
LSB
DNL
Differential Nonlinearity
No missing codes over temperature
-1
+1
LSB
Offset Error
-6
+6
LSB
Gain Error
3
-6
+6
LSB
Gain-Error Temperature
Coefficient
±1.6
ppm/
°C
Channel-to-Channel Offset
Error Matching
±0.2
LSB
Dynamic Specifications: 75kHz sinewave input, 2.5Vp-p, 300ksps, 4.8MHz clock, bit RANGE (page 15) = 0,
pseudo-differential input mode
SINAD
Signal-to-Noise plus
Distortion Ratio
70
dB
THD
Total Harmonic Distortion
Up to the 5th harmonic
-81
dB
SFDR
Spurious-Free Dynamic
Range
84
dB
IMD
Intermodulation Distortion
fIN1 = 73kHz, fIN2 = 77kHz
76
dB
Channel-to-Channel
Crosstalk
4
fIN = 150kHz, VIN = 2.5Vp-p
-80
dB
Full-Power Bandwidth
-3dB point
6
MHz
Full-Linear Bandwidth
SINAD > 68dB
350
kHz
Conversion Rate
tCONV
Conversion Time
5
Normal operation
3.3
µs
tACQ
Track/Hold Acquisition Time
Normal operation
520
ns
tAD
Aperture Delay
7
ns
tAJ
Aperture Jitter
<50
ps
fSCLK
Serial Clock Frequency
Normal operation
0.5
4.8
MHz
Duty Cycle
40
60
%
Analog Inputs: CH0:CH7, COM
VCHx -
VCHy
(COM)
Input Voltage Range: Single-
Ended, Pseudo-Differential,
and Differential
6
Bit RANGE (page 15) = 1
0
VREF
V
Bit RANGE (page 15) = 0
-VREF
/2
+VREF
/2
Multiplexer Leakage Current
On/off leakage current, VCHx = 0 or AVDD
-1
±0.001
+1
µA
Input Capacitance
18
pF
Internal Reference
VREF
REF Output Voltage
TAMB = +25°C
2.48
2.50
2.52
V
REF Short-Circuit Current
30
mA


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