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ADS8321 Datasheet(PDF) 2 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation. Click here to check the latest version.
Part No. ADS8321
Description  16-Bit, High Speed, MicroPower Sampling ANALOG-TO-DIGITAL CONVERTER
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Maker  BURR-BROWN [Burr-Brown (TI)]
Homepage  http://www.burr-brown.com
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ADS8321 Datasheet(HTML) 2 Page - Burr-Brown (TI)

 
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2
®
ADS8321
SPECIFICATIONS: +VCC = +5V
At –40
°C to +85°C, V
REF = +2.5V, –In = 2.5V, fSAMPLE = 100kHz, and fCLK = 24 • fSAMPLE, unless otherwise specified.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN
assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject
to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not
authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.
ADS8321E
ADS8321EB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
RESOLUTION
16
T
Bits
ANALOG INPUT
Full-Scale Input Span
+In – (–In)
–VREF
+VREF
TT
V
Absolute Input Range
+In
–0.1
VCC + 0.1
TT
V
–In
–0.1
+4.0
TT
V
Capacitance
25
T
pF
Leakage Current
1
T
nA
SYSTEM PERFORMANCE
No Missing Codes
14
15
Bits
Integral Linearity Error
±0.008
±0.018
±0.006
±0.012 % of FSR
Offset Error
±0.4
±2
±0.2
±1mV
Offset Temperature Drift
±1
T
µV/°C
Gain Error, Positive
±0.05
±0.024
%
Negative
±0.05
±0.024
%
Gain Temperature Drift
±0.3
T
ppm/
°C
Noise
60
T
µVrms
Common-Mode Rejection Ratio
80
T
dB
Power Supply Rejection Ratio
+4.7V < VCC < 5.25V
3
T
LSB(1)
SAMPLING DYNAMICS
Conversion Time
16
T
Clk Cycles
Acquisition Time
4.5
T
Clk Cycles
Throughput Rate
100
T
kHz
Clock Frequency Range
0.024
2.9
TT
MHz
DYNAMIC CHARACTERISTICS
Total Harmonic Distortion
VIN = 5Vp-p at 10kHz
–84
–86
dB
SINAD
VIN = 5Vp-p at 10kHz
82
84
dB
Spurious Free Dynamic Range
VIN = 5Vp-p at 10kHz
84
86
dB
SNR
85
87
dB
REFERENCE INPUT
Voltage Range
0.5
VCC/2
TT
V
Resistance
CS = GND, fSAMPLE = 0Hz
5
T
G
CS = VCC
5
T
G
Current Drain
40
80
TT
µA
fSAMPLE = 10kHz
0.8
T
µA
CS = VCC
0.1
3
T
µA
DIGITAL INPUT/OUTPUT
Logic Family
CMOS
T
Logic Levels:
VIH
IIH = +5µA
3.0
VCC + 0.3
TT
V
VIL
IIL = +5µA
–0.3
0.8
TT
V
VOH
IOH = –250µA
4.0
T
V
VOL
IOL = 250µA
0.4
T
V
Data Format
T
POWER SUPPLY REQUIREMENTS
VCC
Specified Performance
4.75
5.25
TT
V
VCC Range(2)
2.7
5.25
TT
V
Quiescent Current
1100
1700
TT
µA
fSAMPLE = 10kHz(3, 4)
250
T
µA
Power Dissipation
5.5
8.5
TT
mW
Power Down
CS = VCC
0.3
3
TT
µA
TEMPERATURE RANGE
Specified Performance
–40
+85
TT
°C
T Specifications same as grade to the left.
NOTES: (1) LSB means Least Significant Bit. (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.
Binary Two’s Complement


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