參數(shù)資料
型號: ADS8506IDWR
英文描述: 12-BIT 40-KSPS LOW POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH INTERNAL REFERENCE AND PARALLEL/SERIAL INTERFACE
中文描述: 12位40 kSPS的低功耗采樣模擬到數(shù)字轉(zhuǎn)換的內(nèi)部基準(zhǔn),并行/串行接口
文件頁數(shù): 1/28頁
文件大?。?/td> 426K
代理商: ADS8506IDWR
1
FEATURES
40-kHz Min Sampling Rate
4-V, 5-V, and ±10-V Input Ranges
73.9-dB SINAD with 10-kHz Input
±0.45 LSB Max INL
±0.45 LSB Max DNL, 12-Bit No Missing Codes
±5-mV BPZ, ±0.5 PPM/
°
C BPZ Drift
SPI Compatible Serial Output With
Daisy-Chain (TAG) Feature
Single 5-V Analog Supply
Pin-Compatible With ADS7806 and 16-Bit
ADS7807/8507
Uses Internal or External 2.5-V Reference
Low Power Dissipation
24 mW Typ, 30 mW Max at 40 KSPS
50-
μ
W Max Power Down Mode
28-Pin SO Package
Full Parallel Interface
2's Comp or BTC Output Code
APPLICATIONS
Industrial Process Control
Test Equipment
Medical Equipment
Data Acquisition Systems
Digital Signal Processing
Instrumentation
DESCRIPTION
The ADS8506 is a complete low power, single 5-V
supply,
12-bit
sampling
converter.
It
contains
capacitor-based, successive approximation register
(SAR) A/D converter with sample and hold, clock,
reference, and data interface. The converter can be
configured for a variety of input ranges including ±10
V, 4 V, and 5 V. For most input ranges, the input
voltage can swing to 25 V or –25 V without damage
to the converter.
Successive Approximation Register
Clock
Comparator
CS
R/C
SB/BTC
CDAC
Buffer
REF
CAP
R1
IN
40 k
9.9 k
Internal
+2.5 V Ref
6 k
Parallel
and
Serial
Data
Out
&
Control
BUSY
DATACLK
TAG
SDATA
20 k
39.8 k
R2
IN
EXT/IN
BYTE
REFD
Parallel
Data
PWRD
ADS8506
SLAS484A–SEPTEMBER 2007–REVISED OCTOBER 2007
12-BIT 40-KSPS LOW POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH
INTERNAL REFERENCE AND PARALLEL/SERIAL INTERFACE
2
analog-to-digital
a
complete
(A/D)
12-bit
A SPI compatible serial interface allows data to be
synchronized to an internal or external clock. A full
parallel interface with BYTE select is also provided to
allow the maximum system design flexibility. The
ADS8506 is specified at 40 kHz sampling rate over
the industrial -40
°
C to 85
°
C temperature range.
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.
2
QSPI, SPI are trademarks of Motorola.
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 2007, Texas Instruments Incorporated
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