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ADS8254IBRGCR Datasheet(PDF) 1 Page - Texas Instruments

No. de pieza ADS8254IBRGCR
Descripción Electrónicos  16-BIT, 1-MSPS, PSEUDO-BIPOLAR DIFFERENTIAL SAR ADC WITH ON-CHIP ADC DRIVER (OPA) AND 4-CHANNEL DIFFERENTIAL MULTIPLEXER
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

ADS8254IBRGCR Datasheet(HTML) 1 Page - Texas Instruments

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FEATURES
APPLICATIONS
DESCRIPTION
ADS8254
www.ti.com................................................................................................................................................................................................... SLAS643 – MARCH 2009
16-BIT, 1-MSPS, PSEUDO-BIPOLAR DIFFERENTIAL SAR ADC WITH ON-CHIP ADC
DRIVER (OPA) AND 4-CHANNEL DIFFERENTIAL MULTIPLEXER
• Medical Imaging/CT Scanners
• 1.0-MHz Sample Rate, Zero Latency at Full
Speed
• Automated Test Equipment
• High-Speed Data Acquisition Systems
• 16-Bit Resolution
• High-Speed Closed-Loop Systems
• Supports Pseudo-Bipolar Differential Input
Range: -4 V to +4 V with 2-V Common-Mode
• Built-In Four Channel, Differential Ended
Multiplexer; with Channel Count Selection and
The
ADS8254
is
a
high-performance
analog
Auto/Manual Mode
system-on-chip (SoC) device with an 16-bit, 1-MSPS
A/D converter, 4-V internal reference, an on-chip
• On-Board Differential ADC Driver (OPA)
ADC driver (OPA), and a 4-channel differential
• Buffered Reference Output to Level Shift
multiplexer. The channel count of the multiplexer and
Bipolar ±4-V Input with External Resistance
auto/manual scan modes of the device are user
Divider
selectable.
• Reference/2 Output to Set Common-Mode for
The ADC driver is designed to leverage the very high
External Signal Conditioner
noise performance of the differential ADC at optimum
• 16-/8-Bit Parallel Interface
power usage levels.
• SNR: 95.4dB Typ at 2-kHz I/P
The ADS8254 outputs a buffered reference signal for
level shifting of a ±4-V bipolar signal with an external
• THD: –118dB Typ at 2-kHz I/P
resistance divider. A Vref/2 output signal is available
• Power Dissipation: 331.25 mW at 1 MSPS
to set the common-mode of a signal conditioning
• Internal Reference
circuit. The device also includes an 16-/8-bit parallel
• Internal Reference Buffer
interface.
• 64-Pin QFN Package
The ADS8254 is available in a 9 mm x 9 mm, 64-pin
QFN package and is characterized from -40°C to
85°C.
HIGH-SPEED SAR CONVERTER FAMILY
TYPE/SPEED
500 kHz
~600 kHz
750 kHz
1 MHz
1.25 MHz
2 MHz
3 MHz
4MHz
ADS8383
ADS8381
ADS8481
18-Bit Pseudo-Diff
ADS8380 (s)
ADS8382 (s)
ADS8284
ADS8484
18-Bit Pseudo-Bipolar, Fully Diff
ADS8482
ADS8327
ADS8370 (s)
ADS8371
ADS8471
ADS8401
ADS8411
16-Bit Pseudo-Diff
ADS8328
ADS8405
ADS8410 (s)
ADS8319
ADS8318
ADS8372 (s)
ADS8472
ADS8402
ADS8412
ADS8422
16-Bit Pseudo-Bipolar, Fully Diff
ADS8254
ADS8406
ADS8413 (s)
14-Bit Pseudo-Diff
ADS7890 (s)
ADS7891
12-Bit Pseudo-Diff
ADS7886
ADS7883
ADS7881
1
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.
Copyright © 2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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