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PDF ADS8320EB Data sheet ( Hoja de datos )
| Número de pieza | ADS8320EB | |
| Descripción | 16-Bit/ High-Speed/ 2.7V to 5V microPower Sampling ANALOG-TO-DIGITAL CONVERTER | |
| Fabricantes | Burr-Brown Corporation | |
| Logotipo |  |
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® ADS8320
For most current data sheet and other product
information, visit www.burr-brown.com
16-Bit, High-Speed, 2.7V to 5V microPower Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q 100kHz SAMPLING RATE
q MICRO POWER:
1.8mW at 100kHz and 2.7V
0.3mW at 10kHz and 2.7V
q POWER DOWN: 3µA max
q MSOP-8 PACKAGE
q PIN-COMPATIBLE TO ADS7816 AND
ADS7822
q SERIAL (SPI/SSI) INTERFACE
APPLICATIONS
q BATTERY OPERATED SYSTEMS
q REMOTE DATA ACQUISITION
q ISOLATED DATA ACQUISITION
q SIMULTANEOUS SAMPLING,
MULTI-CHANNEL SYSTEMS
q INDUSTRIAL CONTROLS
q ROBOTICS
q VIBRATION ANALYSIS
DESCRIPTION
The ADS8320 is a 16-bit sampling analog-to-digital
converter (A/D) with guaranteed specifications over a
2.7V to 5.25V supply range. It requires very little
power even when operating at the full 100kHz data
rate. At lower data rates, the high speed of the device
enables it to spend most of its time in the power-down
mode—the average power dissipation is less than
100µW at 10kHz data rate.
The ADS8320 also features operation from 2.0V to
5.25V, a synchronous serial (SPI/SSI compatible) in-
terface, and a differential input. The reference voltage
can be set to any level within the range of 500mV to
VCC.
Ultra-low power and small size make the ADS8320
ideal for portable and battery-operated systems. It is
also a perfect fit for remote data acquisition mod-
ules, simultaneous multi-channel systems, and iso-
lated data acquisition. The ADS8320 is available in
an MSOP-8 package.
VREF
+In
–In
S/H Amp
SAR
CDAC
Comparator
Control
Serial
Interface
DOUT
DCLOCK
CS/SHDN
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1999 Burr-Brown Corporation
PDS-1504C
Printed in U.S.A. May, 2000
1 page  
TYPICAL PERFORMANCE CURVES
At TA = +25°C, VCC = +5V, VREF = +5V, fSAMPLE = 100kHz, fCLK = 24 • fSAMPLE, unless otherwise specified.
INTEGRAL LINEARITY ERROR vs CODE (+25°C)
20
1.0
0.0
–1.0
–2.0
–3.0
–4.0
–5.0
–6.0
0000H
4000H
8000H
Hex Code
C000H
FFFFH
DIFFERENTIAL LINEARITY ERROR vs CODE (+25°C)
3.0
2.0
1.0
0.0
–1.0
–2.0
–3.0
0000H
4000H
8000H
Hex Code
C000H
FFFFH
1200
1000
800
600
400
200
0
–50
SUPPLY CURRENT vs TEMPERATURE
5V
2.7V
–25 0
25 50 75
Temperature (°C)
100
600
500
400
300
200
100
0
–50
POWER DOWN SUPPLY CURRENT
vs TEMPERATURE
5V
–25 0
25 50 75
Temperature (°C)
100
1200
1000
800
600
400
200
1
QUIESCENT CURRENT vs VCC
234
VCC (V)
5
1000
MAXIMUM SAMPLE RATE vs VCC
100
10
1
12345
VCC (V)
®
5 ADS8320
5 Page 
1.4V
DOUT
3kΩ
100pF
CLOAD
Test Point
Load Circuit for tdDO, tr, and tf
DOUT
tr
VOH
VOL
tf
Voltage Waveforms for DOUT Rise and Fall Times, tr, tf
DCLOCK
VIL
tdDO
DOUT
thDO
Voltage Waveforms for DOUT Delay Times, tdDO
VOH
VOL
Test Point
DOUT
3kΩ
100pF
CLOAD
VCC
tdis Waveform 2, ten
tdis Waveform 1
Load Circuit for tdis and ten
CS/SHDN
DOUT
Waveform 1(1)
DOUT
Waveform 2(2)
tdis
Voltage Waveforms for tdis
VIH
90%
10%
CS/SHDN
DCLOCK
DOUT
NOTES: (1) Waveform 1 is for an output with internal conditions such that the output
is HIGH unless disabled by the output control. (2) Waveform 2 is for an output with
internal conditions such that the output is LOW unless disabled by the output control.
145
VOL
ten
Voltage Waveforms for ten
B11
FIGURE 4. Timing Diagrams and Test Circuits for the Parameters in Table I.
®
11 ADS8320
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet ADS8320EB.PDF ] | |
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| ADS8320EB | 16-Bit/ High-Speed/ 2.7V to 5V microPower Sampling ANALOG-TO-DIGITAL CONVERTER | Burr-Brown Corporation |
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