参数资料
型号: ADS7953SRHBT
厂商: TEXAS INSTRUMENTS INC
元件分类: ADC
英文描述: 16-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQCC32
封装: GREEN, PLASTIC, PQFP-32
文件页数: 1/63页
文件大小: 1734K
代理商: ADS7953SRHBT
www.ti.com
SLAS605A – JUNE 2008 – REVISED JANUARY 2010
12/10/8-Bit, 1 MSPS, 16/12/8/4-Channel, Single-Ended, MicroPower, Serial Interface ADCs
1
FEATURES
DESCRIPTION
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 for
easy connection with microprocessors and DSP.
TSSOP package devices. One GPIO for QFN
The input signal is sampled with the falling edge of
devices
CS. It uses SCLK for conversion, serial data output,
Typical Power Dissipation: 14.5 mW (+VA = 5V,
and reading serial data in. The devices allow auto
+VBD = 3V) at 1 MSPS
sequencing
of
preselected
channels
or
manual
selection of a channel for the next conversion cycle.
Power-Down Current (1 mA)
Input Bandwidth (47 MHz at 3dB)
There are two software selectable input ranges (0V -
2.5V and 0V - 5V), four individually configurable
38-,30-Pin TSSOP and 32-,24-Pin QFN
GPIOs ( in case of TSSOP package devices), and
Packages
two programmable alarm thresholds per channel.
These features make the devices suitable for most
APPLICATIONS
data acquisition applications.
PLC / IPC
The devices offer an attractive power-down feature.
Battery Powered Systems
This is extremely useful for power saving when the
Medical Instrumentation
device is operated at lower conversion speeds.
Digital Power Supplies
The 16/12-channel devices from this family are
Touch Screen Controllers
available in a 38-pin TSSOP and 32 pin QFN
High-Speed Data Acquisition Systems
package and the 4/8-channel devices are available in
High-Speed Closed-Loop Systems
a 30-pin TSSOP and 24 pin QFN packages.
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 2008–2010, 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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