ADS8509 Datasheet

IC型号：
ADS8509
PDF描述：
16-BIT 250-KSPS SERIAL CMOS SAMPLING ANALOG-TO-DIGITAL CONVE...
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683.92KB
PDF页数：
26页
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Burr Brown Products

from Texas Instruments

ADS8509

SLAS324A 鈥?OCTOBER 2004 鈥?REVISED JUNE 2005

16-BIT 250-KSPS SERIAL CMOS SAMPLING ANALOG-TO-DIGITAL CONVERTER

FEATURES

鈥?/div>

250-kHz Sampling Rate

4-V, 5-V, 10 V, 卤3.33-V, 卤5-V, and 卤10-V Input

Ranges

卤2.0 LSB Max INL

卤1 LSB Max DNL, 16-Bit No Missing Codes

SPI Compatible Serial Output with

Daisy-Chain (TAG) Feature

Single 5-V Supply

Pin-Compatible With ADS7809 (Low Speed)

and 12-Bit ADS8508/7808

Uses Internal or External Reference

70-mW Typ Power Dissipation at 250 KSPS

20-Pin SO and 28-Pin SSOP Packages

Simple DSP Interface

DESCRIPTION

The ADS8509 is a complete 16-bit sampling

analog-to-digital (A/D) converter using state-of-the-art

CMOS structures. It contains a complete 16-bit,

capacitor-based, successive approximation register

(SAR) A/D converter with sample-and-hold, refer-

ence, clock, and a serial data interface. Data can be

output using the internal clock or can be

synchronized to an external data clock. The ADS8509

also provides an output synchronization pulse for

ease of use with standard DSP processors.

The ADS8509 is specified at a 250-kHz sampling rate

over the full temperature range. Precision resistors

provide various input ranges including 卤10 V and 0 V

to 5 V, while the innovative design allows operation

from a single +5-V supply with power dissipation

under 100 mW.

The ADS8509 is available in 20-pin SO and 28-pin

SSOP packages, both fully specified for operation

over the industrial -40掳C to 85掳C temperature range.

APPLICATIONS

Industrial Process Control

Data Acquisition Systems

Digital Signal Processing

Medical Equipment

Instrumentation

Successive Approximation Register

Clock

EXT/INT

9.8 k鈩?/div>

4.9 k鈩?/div>

2.5 k鈩?/div>

CAP

Buffer

4 k鈩?/div>

REF

10 k鈩?/div>

CDAC

BUSY

Serial

Data

Out

Control

DATACLK

DATA

R/C

SB/BTC

PWRD

Comparator

Internal

+2.5 V Ref

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.

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