ADS8381
器件描述：18-BIT, 580-kHz, UNIPOLAR INPUT, MICRO POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE
器件厂商：TI [Texas Instruments]
厂商主页：http://www.ti.com/
文件大小：391.4KB，共35页
Sponsor by e络盟器件资料摘要：
C0065C0068C0083C0056C0051C0056C0049
SLAS364D − APRIL 2002 − REVISED FEBRUARY 2005
C0049C0056C0262C0066C0073C0084C0044 C0053C0056C0048C0262C0107C0072C0122C0044 C0085C0078C0073C0080C0079C0076C0065C0082 C0073C0078C0080C0085C0084C0044 C0077C0073C0067C0082C0079 C0080C0079C0087C0069C0082 C0083C0065C0077C0080C0076C0073C0078C0071
C0065C0078C0065C0076C0079C0071C0262C0084C0079C0262C0068C0073C0071C0073C0084C0065C0076 C0067C0079C0078C0086C0069C0082C0084C0069C0082 C0087C0073C0084C0072 C0080C0065C0082C0065C0076C0076C0069C0076 C0073C0078C0084C0069C0082C0070C0065C0067C0069
FEATURES
C0068 580-kHz Sample Rate
C0068 18-Bit NMC Ensured Over Temperature
C0068 Zero Latency
C0068 Low Power: 115 mW at 580 kHz
C0068 Unipolar Input Range
C0068 Onboard Reference Buffer and Conversion
Clock
C0068 Wide Buffer Supply, 2.7 V to 5.25 V
C0068 Flexible 8-/16-/18-Bit Parallel Interface
C0068 Pin Compatible With ADS8383
C0068 48-Pin TQFP Package
APPLICATIONS
C0068 Medical Instruments
C0068 Optical Networking
C0068 Transducer Interface
C0068 High Accuracy Data Acquisition Systems
C0068 Magnetometers
DESCRIPTION
The ADS8381 is an 18-bit, 580 kHz A/D converter. The
device includes a 18-bit capacitor-based SAR A/D
converter with inherent sample and hold. The ADS8381
offers a full 18-bit interface, a 16-bit option where data is
read using two read cycles, or an 8-bit bus option using
three read cycles.
The ADS8381 is available in a 48-lead TQFP package and
is characterized over the industrial −40°C to 85°C
temperature range.
CDAC
_
+
Output
Latches
and
3-State
Drivers
BUS 18/16
BYTE
18-/16-/8-Bit
Parallel DATA
Output Bus
SAR
Conversion
and
Control Logic
Comparator
Clock
+IN
−IN
REFIN
CONVST
BUSY
CS
RD
C0080C0082C0079C0068C0085C0067C0084C0073C0079C0078 C0068C0065C0084C0065 C0105C0110C0102C0111C0114C0109C0097C0116C0105C0111C0110 C0105C0115 C0099C0117C0114C0114C0101C0110C0116 C0097C0115 C0111C0102 C0112C0117C0098C0108C0105C0099C0097C0116C0105C0111C0110 C0100C0097C0116C0101C0046 C0080C0114C0111C0100C0117C0099C0116C0115
C0099C0111C0110C0102C0111C0114C0109 C0116C0111 C0115C0112C0101C0099C0105C0102C0105C0099C0097C0116C0105C0111C0110C0115 C0112C0101C0114 C0116C0104C0101 C0116C0101C0114C0109C0115 C0111C0102 C0084C0101C0120C0097C0115 C0073C0110C0115C0116C0114C0117C0109C0101C0110C0116C0115 C0115C0116C0097C0110C0100C0097C0114C0100 C0119C0097C0114C0114C0097C0110C0116C0121C0046
C0080C0114C0111C0100C0117C0099C0116C0105C0111C0110 C0112C0114C0111C0099C0101C0115C0115C0105C0110C0103 C0100C0111C0101C0115 C0110C0111C0116 C0110C0101C0099C0101C0115C0115C0097C0114C0105C0108C0121 C0105C0110C0099C0108C0117C0100C0101 C0116C0101C0115C0116C0105C0110C0103 C0111C0102 C0097C0108C0108 C0112C0097C0114C0097C0109C0101C0116C0101C0114C0115C0046
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.
Copyright 2002−2005, Texas Instruments Incorporated
SLAS364D − APRIL 2002 − REVISED FEBRUARY 2005
C0049C0056C0262C0066C0073C0084C0044 C0053C0056C0048C0262C0107C0072C0122C0044 C0085C0078C0073C0080C0079C0076C0065C0082 C0073C0078C0080C0085C0084C0044 C0077C0073C0067C0082C0079 C0080C0079C0087C0069C0082 C0083C0065C0077C0080C0076C0073C0078C0071
C0065C0078C0065C0076C0079C0071C0262C0084C0079C0262C0068C0073C0071C0073C0084C0065C0076 C0067C0079C0078C0086C0069C0082C0084C0069C0082 C0087C0073C0084C0072 C0080C0065C0082C0065C0076C0076C0069C0076 C0073C0078C0084C0069C0082C0070C0065C0067C0069
FEATURES
C0068 580-kHz Sample Rate
C0068 18-Bit NMC Ensured Over Temperature
C0068 Zero Latency
C0068 Low Power: 115 mW at 580 kHz
C0068 Unipolar Input Range
C0068 Onboard Reference Buffer and Conversion
Clock
C0068 Wide Buffer Supply, 2.7 V to 5.25 V
C0068 Flexible 8-/16-/18-Bit Parallel Interface
C0068 Pin Compatible With ADS8383
C0068 48-Pin TQFP Package
APPLICATIONS
C0068 Medical Instruments
C0068 Optical Networking
C0068 Transducer Interface
C0068 High Accuracy Data Acquisition Systems
C0068 Magnetometers
DESCRIPTION
The ADS8381 is an 18-bit, 580 kHz A/D converter. The
device includes a 18-bit capacitor-based SAR A/D
converter with inherent sample and hold. The ADS8381
offers a full 18-bit interface, a 16-bit option where data is
read using two read cycles, or an 8-bit bus option using
three read cycles.
The ADS8381 is available in a 48-lead TQFP package and
is characterized over the industrial −40°C to 85°C
temperature range.
CDAC
_
+
Output
Latches
and
3-State
Drivers
BUS 18/16
BYTE
18-/16-/8-Bit
Parallel DATA
Output Bus
SAR
Conversion
and
Control Logic
Comparator
Clock
+IN
−IN
REFIN
CONVST
BUSY
CS
RD
C0080C0082C0079C0068C0085C0067C0084C0073C0079C0078 C0068C0065C0084C0065 C0105C0110C0102C0111C0114C0109C0097C0116C0105C0111C0110 C0105C0115 C0099C0117C0114C0114C0101C0110C0116 C0097C0115 C0111C0102 C0112C0117C0098C0108C0105C0099C0097C0116C0105C0111C0110 C0100C0097C0116C0101C0046 C0080C0114C0111C0100C0117C0099C0116C0115
C0099C0111C0110C0102C0111C0114C0109 C0116C0111 C0115C0112C0101C0099C0105C0102C0105C0099C0097C0116C0105C0111C0110C0115 C0112C0101C0114 C0116C0104C0101 C0116C0101C0114C0109C0115 C0111C0102 C0084C0101C0120C0097C0115 C0073C0110C0115C0116C0114C0117C0109C0101C0110C0116C0115 C0115C0116C0097C0110C0100C0097C0114C0100 C0119C0097C0114C0114C0097C0110C0116C0121C0046
C0080C0114C0111C0100C0117C0099C0116C0105C0111C0110 C0112C0114C0111C0099C0101C0115C0115C0105C0110C0103 C0100C0111C0101C0115 C0110C0111C0116 C0110C0101C0099C0101C0115C0115C0097C0114C0105C0108C0121 C0105C0110C0099C0108C0117C0100C0101 C0116C0101C0115C0116C0105C0110C0103 C0111C0102 C0097C0108C0108 C0112C0097C0114C0097C0109C0101C0116C0101C0114C0115C0046
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.
Copyright 2002−2005, Texas Instruments Incorporated