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Burr-Brown - (ADS8327 / ADS8328) ANALOG-TO-DIGITAL CONVERTERS

Numéro de référence ADS8328
Description (ADS8327 / ADS8328) ANALOG-TO-DIGITAL CONVERTERS
Fabricant Burr-Brown 
Logo Burr-Brown 





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ADS8328 fiche technique
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BurrĆBrown Products
from Texas Instruments
ADS8327
ADS8328
SLAS415A – APRIL 2006 – REVISED MAY 2006
LOW POWER, 16-BIT, 500-kHz, SINGLE/DUAL UNIPOLAR INPUT, ANALOG-TO-DIGITAL
CONVERTERS WITH SERIAL INTERFACE
FEATURES
2.7-V to 5.5-V Analog Supply, Low Power:
– 10.6 mW (+VA = 2.7 V, +VBD = 1.8 V)
500-kHz Sampling Rate
Excellent DC Performance
– ±1.2 LSB Typ, ±2 LSB Max INL
– ±0.6 LSB Typ, ±1 LSB Max DNL
– 16-Bit NMC Over Temperature
– ±0.5 mV Max Offset Error at 2.7 V
– ±1 mV Max Offset Error at 5 V
Excellent AC Performance at fi = 10 kHz with
91 dB SNR, 101 dB SFDR, –98 dB THD
Built-In Conversion Clock (CCLK)
1.65 V to 5.5 V I/O Supply
– SPI/DSP Compatible Serial
– SCLK up to 50 MHz
Comprehensive Power-Down Modes:
– Deep Powerdown
– Nap Powerdown
– Auto Nap Powerdown
Unipolar Input Range: 0 V to Vref
Software Reset
Global CONVST (Independent of CS)
Programmable Status/Polarity EOC/INT
16-Pin TSSOP Package
Multi-Chip Daisy Chain Mode
Programmable TAG Bit Output
Manual/Auto Channel Select Mode (ADS8328)
APPLICATIONS
Communications
Transducer Interface
Medical Instruments
Magnetometers
Industrial Process Control
Data Acquisition Systems
Automatic Test Equipment
DESCRIPTION
The ADS8327 is a low power, 16-bit, 500-ksps
analog-to-digital converter with a unipolar input. The
device includes a 16-bit capacitor-based SAR A/D
converter with inherent sample and hold.
The ADS8328 is based on the same core and
includes a 2-to-1 input MUX with programmable
option of TAG bit output. Both the ADS8327 and
ADS8328 offer a high-speed, wide voltage serial
interface and are capable of chain mode operation
when multiple converters are used.
These converters are available in a 16-lead TSSOP
package and are fully specified for operation over the
industrial -40°C to +85°C temperature range.
Low Power, High-Speed SAR Converter Family
Type/Speed
16 Bit Pseudo-Diff
Single
Dual
500 kHz
ADS8327
ADS8328
1 MHz
ADS8329
ADS8330
ADS8328 ADS8327
+IN1
NC
+IN0
COM
+IN
−IN
REF+
REF−
SAR
OUTPUT
LATCH
SDO
and
3−STATE
DRIVER
+
_
CDAC
COMPARATOR
CONVERSION
and
CONTROL
FS/CS
SCLK
SDI
OSC
LOGIC
CONVST
EOC/INT/CDI
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006, Texas Instruments Incorporated

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