ISL267817IUZ-T datasheet, PDF - EEWORLD Datasheet

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ISL267817IUZ-T: DescriptionAnalog to Digital Converters - ADC 12 BIT 200KSPS SAR 8LD 3 X 3 PROPRIETRY; Categorysemiconductor Analog mixed-signal IC; File Size923KB，18 Pages; ManufacturerIntersil ( Renesas ); Websitehttp://www.intersil.com/cda/home/

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Analog to Digital Converters - ADC 12 BIT 200KSPS SAR 8LD 3 X 3 PROPRIETRY

ISL267817IUZ-T Parametric

Parameter Name	Attribute value
Product Attribute	Attribute Value
Manufacturer	Intersil ( Renesas )
Product Category	Analog to Digital Converters - ADC
RoHS	Details
Mounting Style	SMD/SMT
Package / Case	MSOP-8
Resolution	12 bit
Packaging	Reel
Product	Analog to Digital Converters
Factory Pack Quantity	2500
Unit Weight	0.004938 oz

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DATASHEET

ISL267817

12-Bit Differential Input 200kSPS SAR ADC

The ISL267817 is a 12-bit, 200kSPS sampling SAR-type ADC

which features excellent linearity over supply and temperature

variations, and provides a drop-in compatible alternative to all

ADS7817 performance grades. The robust, fully-differential

input offers high impedance to minimize errors due to leakage

currents, and the specified measurement accuracy is

maintained with input signals up to the supply rails.

The reference accepts inputs between 0.1V to 2.5V, providing

design flexibility in a wide variety of applications. The

ISL267817 also features up to 8kV Human Body Model ESD

survivability.

The serial digital interface is SPI compatible and is easily

interfaced to popular FPGAs and microcontrollers. Operating

from a 5V supply, power dissipation is 2.15mW at a sampling

rate of 200kSPS, and just 25µW between conversions utilizing

the Auto Power-Down mode, making the ISL267817 an

excellent solution for remote industrial sensors and

battery-powered instruments. It is available in the compact,

industry-standard 8 Lead SOIC and MSOP packages and is

specified for operation over the industrial temperature range

(-40°C to +85°C).

FN7877

Rev 2.00

April 19, 2012

Features

• Drop-In Compatible with ADS7817 (All Performance Grades)

• Differential Input

• Simple SPI-compatible Serial Digital Interface

• Guaranteed No Missing Codes

• 200kHz Sampling Rate

• +4.75V to +5.25V Supply

• Low 2.15mW Operating Power (200kSPS)

• Power-down Current between Conversions: 3µA

• Excellent Differential Non-Linearity (1.0LSB max)

• Low THD: -85dB (typ)

• Pb-Free (RoHS Compliant)

• Available in SOIC and MSOP Packages

Applications

• Remote Data Acquisition

• Battery Operated Systems

• Industrial Process Control

• Energy Measurement

• Data Acquisition Systems

• Pressure Sensors

• Flow Controllers

1.00

VREF

DAC

+VCC

0.75

0.50

0.25

+IN

–IN

DAC

SAR

LOGIC

SERIAL

INTERFACE

DCLOCK

DOUT

CS/SHDN

0.00

-0.25

-0.50

VREF

-0.75

GND

-1.00

512

1024 1536 2048 2560 3072 3584 4096

FIGURE 1. BLOCK DIAGRAM

FIGURE 2. DIFFERENTIAL LINEARITY ERROR vs CODE

FN7877 Rev 2.00

April 19, 2012

Page 1 of 18

ISL267817

Table of Contents

Typical Connection Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Thermal Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Timing Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

ADC Transfer Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Analog Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltage Reference Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power-Down/Standby Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dynamic Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Static Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Short Cycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power-on Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power vs Throughput Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Serial Digital Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Application Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Grounding and Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Package Outline Drawing (M8.15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Package Outline Drawing (M8.118). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

FN7877 Rev 2.00

April 19, 2012

Page 3 of 18

ISL267817IUZ-T Related Products

	ISL267817IUZ-T	ISL267817IBZ-T
Description	Analog to Digital Converters - ADC 12 BIT 200KSPS SAR 8LD 3 X 3 PROPRIETRY	Analog to Digital Converters - ADC 12 BIT 200KSPS SAR 8LD 3 X 3 PROPRIETRY
Product Attribute	Attribute Value	Attribute Value
Manufacturer	Intersil ( Renesas )	Intersil ( Renesas )
Product Category	Analog to Digital Converters - ADC	Analog to Digital Converters - ADC
RoHS	Details	Details
Mounting Style	SMD/SMT	SMD/SMT
Package / Case	MSOP-8	SOIC-8
Resolution	12 bit	12 bit
Packaging	Reel	Reel
Product	Analog to Digital Converters	Analog to Digital Converters
Factory Pack Quantity	2500	2500
Unit Weight	0.004938 oz	0.019048 oz

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