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ADS8329 Datasheet(PDF) 4 Page - Texas Instruments

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No. de Pieza. ADS8329
Descripción  LOW POWER, 16-BIT, 1-MHz, SINGLE/DUAL UNIPOLAR INPUT, ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL INTERFACE
Descarga  40 Pages
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Fabricante  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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ADS8329 Datasheet(HTML) 4 Page - Texas Instruments

 
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ADS8329
ADS8330
SLAS516 – DECEMBER 2006
SPECIFICATIONS (continued)
T
A = –40°C to 85°C, +VA = 5 V, +VBD = +5.5 V to +1.65 V, Vref = 5 V, fSAMPLE = 1 MHz (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DYNAMIC CHARACTERISTICS
VIN = 5 Vpp at 10 kHz
–102
THD
Total harmonic distortion (4)
dB
VIN = 5 Vpp at 100 kHz
–95
VIN = 5 Vpp at 10 kHz
93
SNR
Signal-to-noise ratio
ADS8329/30IB
90
92
dB
VIN = 5 Vpp at 100 kHz
ADS8329/30I
90
VIN = 5 Vpp at 10 kHz
92
SINAD
Signal-to-noise + distortion
dB
VIN = 5 Vpp at 100 kHz
90
VIN = 5 Vpp at 10 kHz
105
SFDR
Spurious free dynamic range
dB
VIN = 5 Vpp at 100 kHz
97
-3dB Small signal bandwidth
30
MHz
CLOCK
Internal conversion clock frequency
21
22.9
24.5
MHz
Used as I/O clock only
50
SCLK External serial clock
MHz
As I/O clock and conversion clock
1
42
EXTERNAL VOLTAGE REFERENCE INPUT
Input
Vref[REF+ – (REF–)]
5.5 V
≥ +VA ≥ 4.5 V
0.3
5
5
Vref
reference
V
(REF–) – AGND
–0.1
0.1
range
Resistance (5)
Reference input
40
k
DIGITAL INPUT/OUTPUT
Logic family — CMOS
VIH
High-level input voltage
5.5 V
≥ +VBD ≥ 4.5 V
0.65 × (+VBD)
+VBD + 0.3
V
0.35 ×
VIL
Low-level input voltage
5.5 V
≥ +VBD ≥ 4.5 V
–0.3
V
(+VBD)
II
Input current
VI = +VBD or BDGND
-50
50
nA
Ci
Input capacitance
5
pF
5.5 V
≥ +VBD ≥ 4.5 V,
VOH
High-level output voltage
+VBD – 0.6
+VBD
V
IO = 100 µA
5.5 V
≥ +VBD ≥ 4.5 V,
VOL
Low-level output voltage
0
0.4
V
IO = 100 µA
CO
Output capacitance
5
pF
CL
Load capacitance
30
pF
Data format — straight binary
POWER SUPPLY REQUIREMENTS
+VBD
1.65
3.3
5.5
V
Power supply
voltage
+VA
4.5
5
5.5
V
1-MHz Sample rate
7.0
7.8
mA
Supply current
Nap mode
0.3
0.5
PD Mode
4
50
nA
Buffer I/O supply current
1 MSPS
1.7
mA
+VA = 5 V, +VBD = 5 V
44
48
Power dissipation
mW
+VA = 5 V, +VBD = 1.8 V
35
39.5
TEMPERATURE RANGE
TA
Operating free-air temperature
–40
85
°C
(4)
Calculated on the first nine harmonics of the input frequency
(5)
Can vary ±30%
4
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