ADS8482 반도체 회로 부품 판매점
MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER
|
|
 Burr-Brown |
www.DataSheet4U.com
BurrĆBrown Products
from Texas Instruments
ADS8482
SLAS386A – JULY 2005 – REVISED JUNE 2006
18-BIT, 1-MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICROPOWER
SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE,
REFERENCE
FEATURES
APPLICATIONS
• 0 to 1-MHz Sample Rate
• ±1.2 LSB Typ, ±2.5 LSB Max INL
• +0.75/-0.6 LSB Typ, +1.5/-1 LSB Max DNL
• 18-Bit NMC Ensured Over Temperature
• ±0.05-mV Offset Error
• Medical Instruments
• Optical Networking
• Transducer Interface
• High Accuracy Data Acquisition Systems
• Magnetometers
• ±0.05-PPM/°C Offset Error Drift
• ±0.035 %FSR Gain Error
• ±0.5-PPM/°C Gain Error Drift
• 99dB SNR, -121dB THD, 123dB SFDR
• Zero Latency
• Low Power: 225 mW at 1 MSPS
• Unipolar Differential Input Range: Vref to –Vref
• Onboard Reference with 6 PPM/°C Drift
DESCRIPTION
The ADS8482 is an 18-bit, 1-MSPS A/C converter
with an internal 4.096-V reference and a
pseudo-bipolar, fully differential input. The device
includes a 18-bit capacitor-based SAR A/D converter
with inherent sample and hold. The ADS8482 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.
• Onboard Reference Buffer
• High-Speed Parallel Interface
• Wide Digital Supply 2.7 V to 5.25 V
The ADS8482 is available in a 48-lead 7x7 QFN
package and is characterized over the industrial
–40°C to 85°C temperature range.
• 8-/16-/18-Bit Bus Transfer
• 48-Pin 7x7 QFN Package
HIGH SPEED SAR CONVERTER FAMILY
TYPE/SPEED
18-Bit Pseudo-Diff
18-Bit Pseudo-Bipolar, Fully Diff
16-Bit Pseudo-Diff
16-Bit Pseudo-Bipolar, Fully Diff
14-Bit Pseudo-Diff
12-Bit Pseudo-Diff
500 kHz
ADS8383
ADS8327
ADS8328
~600 kHz
ADS8381
ADS8380 (s)
ADS8382 (s)
ADS8370 (s)
ADS8372 (s)
750 kHz
ADS8371
1 MHz
ADS8481
ADS8482
ADS8471
ADS8472
ADS7886
1.25 MHz
2 MHz
3 MHz
4MHz
ADS8401
ADS8405
ADS8402
ADS8406
ADS7890 (s)
ADS8411
ADS8410 (s)
ADS8412
ADS8413 (s)
ADS7883
ADS7891
ADS8422
ADS7881
REFOUT
+IN
−IN
REFIN
+
_ CDAC
4.096-V
Internal
Reference
SAR
Comparator
Clock
Output
Latches
and
3-State
Drivers
Conversion
and
Control Logic
BYTE
16-/8-Bit
Parallel DA TA
Output Bus
BUS 18/16
CONVST
BUSY
CS
RD
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 © 2005–2006, Texas Instruments Incorporated
ADS8482
SLAS386A – JULY 2005 – REVISED JUNE 2006
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
MODEL
MAXIMUM
INTEGRAL
LINEARITY
(LSB)
ADS8482I
±4
MAXIMUM
DIFFERENTIAL
LINEARITY (LSB)
–1 to +1.5
ORDERING INFORMATION(1)
NO MISSING CODES PACKAGE
PACKAGE
TEMPER-ATURE
RESOLUTION (BIT)
TYPE
DESIGNATOR
RANGE
18
7x7 48 Pin
QFN
RGZ
–40°C to 85°C
ADS8482IB
±2.5
–1 to +1.5
18
7x7 48 Pin
QFN
RGZ
–40°C to 85°C
(1) For the most current specifications and package information, refer to our website at www.ti.com.
ORDERING
INFORMATION
ADS8482IRGZT
ADS8482IRGZR
ADS8482IBRGZT
ADS8482IBRGZR
TRANS-PORT
MEDIA QTY.
Tape and reel
250
Tape and reel
1000
Tape and reel
250
Tape and reel
1000
ABSOLUTE MAXIMUM RATINGS(1)
over operating free-air temperature range (unless otherwise noted)
+IN to AGND
–IN to AGND
Voltage
+VA to AGND
+VBD to BDGND
+VA to +VBD
Digital input voltage to BDGND
Digital output voltage to BDGND
TA Operating free-air temperature range
Tstg Storage temperature range
Junction temperature (TJ max)
QFN package
Power dissipation
θJA thermal impedance
Lead temperature, soldering
Vapor phase (60 sec)
Infrared (15 sec)
VALUE
–0.4 to +VA + 0.1
–0.4 to +VA + 0.1
–0.3 to 7
–0.3 to 7
–0.3 to 2.55
–0.3 to +VBD + 0.3
–0.3 to +VBD + 0.3
–40 to 85
–65 to 150
150
(TJMax – TA)/θJA
22
215
220
UNIT
V
V
V
V
V
V
V
°C
°C
°C
°C/W
°C
°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
2 Submit Documentation Feedback
|
PDF 파일 내의 페이지 : 총 30 페이지
제조업체: Burr-Brown
( burr-brown )
ADS8482 converter
데이터시트 다운로드 :
[ ADS8482.PDF ]
[ ADS8482 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
관련 데이터시트
ADS8481
MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER - Burr-Brown Corporation
ADS8481
18-Bit 1-MSPS Pseudo-Diff Unipolar Input Micro Samp ADC w/Parallell Interface (Rev. A) - Texas Instruments
ADS8482
MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER - Burr-Brown
ADS8482
18-Bit 1-MSPS Differential Input Micropower Samp Analog-to-Digital Converter (Rev. A) - Texas Instruments
ADS8484
18Bit 1.25MSPS Pseudo-Bipolar Fully Differential Input Micropower Sampling ADC - Texas Instruments