ADS8556

更新时间： 2024-11-24 06:36:27

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
40页	870K
描述
16-14-12-Bit Six-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS

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ADS8556 数据手册

ADS8556

ADS8557

ADS8558

www.ti.com ............................................................................................................................................... SBAS404A–OCTOBER 2006–REVISED AUGUST 2009

16-, 14-, 12-Bit, Six-Channel, Simultaneous Sampling

ANALOG-TO-DIGITAL CONVERTERS

FEATURES

DESCRIPTION

•

Family of 16-, 14-, 12-Bit, Pin- and

Software-Compatible ADCs

The ADS8556/7/8 contain six low-power, 16-, 14-, or

12-bit, successive approximation register (SAR)

based analog-to-digital converters (ADCs) with true

•

Six SAR ADCs Grouped in Three Pairs

bipolar

inputs.

Each

channel

contains

Maximum Data Rate Per Channel with Internal

Conversion Clock and Reference:

ADS8556: 630kSPS (PAR) or 450kSPS (SER)

ADS8557: 670kSPS (PAR) or 470kSPS (SER)

ADS8558: 730kSPS (PAR) or 500kSPS (SER)

sample-and-hold circuit that allows simultaneous

high-speed multi-channel signal acquisition.

The ADS8556/7/8 support data rates of up to

730kSPS in parallel interface mode or up to 500kSPS

if the serial interface is used. The bus width of the

parallel interface can be set to eight or 16 bits. In

serial mode, up to three output channels can be

activated.

•

Maximum Data Rate with External Conversion

Clock and Reference:

800kSPS (PAR) or 530kSPS (SER)

•

Pin-Selectable or Programmable Input Voltage

Ranges: Up to ±12V

The ADS8556/7/8 is specified over the full industrial

temperature range of –40°C to +125°C and is

available in an LQFP-64 package.

Excellent Signal-to-Noise Performance:

91.5dB (ADS8556)

85dB (ADS8557)

ADS8556

Clock

Generator

ADS8557

ADS8558

73.9dB (ADS8558)

CONVST_A

CH_A0

Comparator

•

Programmable and Buffered Internal

Reference: 0.5V to 2.5V and 0.5V to 3.0V

CDAC 1

S/H

AGND

BUSY/INT

RANGE/XCLK

HW/SW

Buffer

Control

Logic

Comprehensive Power-Down Modes:

Deep Power-Down (Standby Mode)

Partial Power-Down

SAR Register 1/2

REF /WR

STBY

RESET

REFC_A

CH_A1

CDAC 2

S/H

AGND

Auto-Nap Power-Down

Comparator

•

Selectable Parallel or Serial Interface

CONVST_B

CH_B0

CDAC 3

S/H

Operating Temperature Range:

–40°C to +125°C

AGND

Buffer

Config

SAR Register 3/4

•

LQFP-64 Package

REFC_B

CH_B1

CDAC 4

S/H

AGND

APPLICATIONS

Comparator

•

Power Quality Measurement

Protection Relays

Multi-Axis Motor Control

Programmable Logic Controllers

Industrial Data Acquisition

CONVST_C

CH_C0

CDAC 5

S/H

AGND

Buffer

CS/FS

SAR Register 5/6

I/O

DB[15:0]

WORD/BYTE

PAR/SER

REFC_C

CH_C1

CDAC 6

S/H

AGND

Comparator

Buffer

BVDD

BGND

Internal 2.5V

Reference

String DAC

REF_IO

AVDD

AGND

HVDD

HVSS

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.

All trademarks are the property of their respective owners.

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.

12 3 4 5 6 7...40

中文翻译

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ADS8556 替代型号

型号	品牌	替代类型	描述	数据表
ADS8558	TI	功能相似	16-14-12-Bit Six-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS
ADS8557	TI	功能相似	16-14-12-Bit Six-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS

与ADS8556相关器件

型号	品牌	获取价格	描述	数据表
ADS8556I	TI	获取价格	16-14-12-Bit Six-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS
ADS8556IPM	TI	获取价格	16-14-12-Bit Six-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS
ADS8556IPMR	TI	获取价格	16-14-12-Bit Six-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS
ADS8557	TI	获取价格	16-14-12-Bit Six-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS
ADS8557I	TI	获取价格	16-14-12-Bit Six-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS
ADS8557IPM	TI	获取价格	16-14-12-Bit Six-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS
ADS8557IPMR	TI	获取价格	16-14-12-Bit Six-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS
ADS8558	TI	获取价格	16-14-12-Bit Six-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS
ADS8558I	TI	获取价格	16-14-12-Bit Six-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS
ADS8558IPM	TI	获取价格	16-14-12-Bit Six-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS

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