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ADS7954SDBT Arkusz danych(PDF) 1 Page - Texas Instruments

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Numer części ADS7954SDBT
Szczegółowy opis  12/10/8-Bit, 1 MSPS, 16/12/8/4-Channel, Single-Ended, MicroPower, Serial Interface ADCs
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Producent  TI [Texas Instruments]
Strona internetowa  http://www.ti.com
Logo TI - Texas Instruments

ADS7954SDBT Arkusz danych(HTML) 1 Page - Texas Instruments

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1
FEATURES
DESCRIPTION
APPLICATIONS
ADS7950, ADS7951, ADS7952, ADS7953
ADS7954, ADS7955, ADS7956, ADS7957
ADS7958, ADS7959, ADS7960, ADS7961
www.ti.com ...................................................................................................................................................................................................... SLAS605 – JUNE 2008
12/10/8-Bit, 1 MSPS, 16/12/8/4-Channel, Single-Ended, MicroPower, Serial Interface ADCs
• 1-MHz Sample Rate Serial Devices
The
ADS79XX
is
a
12/10/8-bit
multichannel
analog-to-digital converter family. The following table
• Product Family of 12/10/8-Bit Resolution
shows all twelve devices from this product family.
• Zero Latency
The devices include a capacitor based SAR A/D
• 20-MHz Serial Interface
converter with inherent sample and hold.
• Analog Supply Range: 2.7 to 5.25V
The devices accept a wide analog supply range from
• I/O Supply Range: 1.7 to 5.25V
2.7V to 5.25V. Very low power consumption makes
• Two SW Selectable Unipolar, Input Ranges: 0
these
devices
suitable
for
battery-powered
and
to 2.5V and 0 to 5V
isolated power supply applications.
• Auto and Manual Modes for Channel Selection
A wide 1.7V to 5.25V I/O supply range facilitates a
• 12,8,4-Channel Devices can Share 16 Channel
glue-less interface with the most commonly used
Device Footprint
CMOS digital hosts.
• Two Programmable Alarm Levels per Channel
The serial interface is controlled by CS and SCLK for
• Four Individually Configurable GPIOs
easy connection with microprocessors and DSP.
• Typical Power Dissipation: 14.5 mW (+VA = 5V,
The input signal is sampled with the falling edge of
+VBD = 3V) at 1 MSPS
CS. It uses SCLK for conversion, serial data output,
and reading serial data in. The devices allow auto
• Power-Down Current (1 µA)
sequencing
of
preselected
channels
or
manual
• Input Bandwidth (47 at 3dB)
selection of a channel for the next conversion cycle.
• 30-Pin and 38-Pin TSSOP Packages
There are two software selectable input ranges (0V -
2.5V and 0V - 5V), four individually configurable
GPIOs, and two programmable alarm thresholds per
• PLC / IPC
channel. These features make the devices suitable
• Battery Powered Systems
for most data acquisition applications.
• Medical Instrumentation
The devices offer an attractive power-down feature.
• Digital Power Supplies
This is extremely useful for power saving when the
• Touch Screen Controllers
device is operated at lower conversion speeds.
• High-Speed Data Acquisition Systems
The 16/12-channel devices from this family are
• High-Speed Closed-Loop Systems
available in a 38-pin TSSOP package and the
4/8-channel devices are available in a 30-pin TSSOP
package.
MICROPOWER MULTI-CHANNEL ADS79XX FAMILY
RESOLUTION
NUMBER OF
CHANNELS
12 BIT
10 BIT
8 BIT
16
ADS7953
ADS7957
ADS7961
12
ADS7952
ADS7956
ADS7960
8
ADS7951
ADS7955
ADS7959
4
ADS7950
ADS7954
ADS7958
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 © 2008, 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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