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ADS8320 Datasheet(PDF) 2 Page - Texas Instruments

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Part # ADS8320
Description  16-Bit, High-Speed, 2.7V to 5V microPower Sampling ANALOG-TO-DIGITAL CONVERTER
PDF  21 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

ADS8320 Datasheet(HTML) 2 Page - Texas Instruments

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ADS8320
2
SBAS108D
www.ti.com
SPECIFICATIONS: +VCC = +5V
At –40
°C to +85°C, V
REF = +5V, –IN = GND, fSAMPLE = 100kHz, and fCLK = 24 • fSAMPLE, unless otherwise specified.
ADS8320E
ADS8320EB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
RESOLUTION
16
✻
Bits
ANALOG INPUT
Full-Scale Input Span
+In – (–In)
0
VREF
✻✻
V
Absolute Input Range
+In
–0.1
VCC + 0.1
✻✻
V
–In
–0.1
+1.0
✻✻
V
Capacitance
45
✻
pF
Leakage Current
1
✻
nA
SYSTEM PERFORMANCE
No Missing Codes
14
15
Bits
Integral Linearity Error
±0.008
±0.018
±0.006
±0.012 % of FSR
Offset Error
±1
±2
±0.5
±1mV
Offset Temperature Drift
±3
✻
µV/°C
Gain Error
±0.05
±0.024
%
Gain Temperature Drift
±0.3
✻
ppm/
°C
Noise
20
✻
µVrms
Power-Supply Rejection Ratio
+4.7V < VCC < 5.25V
3
✻
LSB(1)
SAMPLING DYNAMICS
Conversion Time
16
✻
Clk Cycles
Acquisition Time
4.5
✻
Clk Cycles
Throughput Rate
100
✻
kHz
Clock Frequency Range
0.024
2.4
✻✻
MHz
DYNAMIC CHARACTERISTICS
Total Harmonic Distortion
VIN = 5VPP at 10kHz
–84
–86
dB
SINAD
VIN = 5VPP at 10kHz
82
84
dB
Spurious-Free Dynamic Range
VIN = 5VPP at 10kHz
84
86
dB
SNR
90
92
dB
REFERENCE INPUT
Voltage Range
0.5
VCC
✻✻
V
Resistance
CS = GND, fSAMPLE = 0Hz
5
✻
G
Ω
CS = VCC
5
✻
G
Ω
Current Drain
40
80
✻✻
µA
fSAMPLE = 10kHz
0.8
✻
µA
CS = VCC
0.1
3
✻
µA
DIGITAL INPUT/OUTPUT
Logic Family
CMOS
✻
Logic Levels:
VIH
IIH = +5µA
3.0
VCC + 0.3
✻✻
V
VIL
IIL = +5µA
–0.3
0.8
✻✻
V
VOH
IOH = –250µA
4.0
✻
V
VOL
IOL = 250µA
0.4
✻
V
Data Format
Straight Binary
✻
POWER-SUPPLY REQUIREMENTS
VCC
Specified Performance
4.75
5.25
✻✻
V
VCC Range(2)
2.0
5.25
✻✻
V
Quiescent Current
900
1700
✻✻
µA
fSAMPLE = 10kHz(3, 4)
200
✻
µA
Power Dissipation
4.5
8.5
✻✻
mW
Power-Down
CS = VCC
0.3
3
✻✻
µA
TEMPERATURE RANGE
Specified Performance
–40
+85
✻✻
°C
✻ Specifications same as ADS8320E.
NOTES: (1) LSB means Least Significant Bit. With VREF equal to +5.0V, one LSB is 0.076mV.
(2) See
Typical Performance Curves for more information.
(3) fCLK = 2.4MHz, CS = VCC for 216 clock cycles out of every 240.
(4) See the Power Dissipation section for more information regarding lower sample rates.



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