X96012 datasheet(10/27 Pages) INTERSIL

10 / 27 page

FN8216.0

March 10, 2005

INTERSIL SENSOR CONDITIONER PRODUCT FAMILY

FSO = Full Scale Output, Ext = External, Int = Internal

DEVICE DESCRIPTION

The X96012 combines two Programmable Current

Generators, and integrated EEPROM with Block

Lock™ protection, in one package. The combination of

the X96012 functionality and Intersil’s QFN package

lowers system cost, increases reliability, and reduces

board space requirements.

Two on-chip Programmable Current Generators may

be independently programmed to either sink or source

current. The maximum current generated is deter-

mined by using an externally connected programming

resistor, or by selecting one of three predefined val-

ues. Both current generators have a maximum output

of ±3.2 mA, and may be controlled to an absolute res-

olution of 0.39% (256 steps/8 bit).

Both current generators may be driven using an on-

board temperature sensor, an external sensor, or Con-

trol Registers. The internal temperature sensor oper-

ates over a very broad temperature range (-40

°C to

+100

°C). The sensor output (internal or external) drives

an 8-bit A/D converter. The six MSBs of the ADC output

select one of 64 bytes from each nonvolatile look-up

table (LUT).

The contents of the selected LUT row (8-bit wide)

drives the input of an 8-bit D/A converter, which gener-

ates the output current.

All control and setup parameters of the X96012,

including the look-up tables, are programmable via the

2-wire serial port.

The general purpose memory portion of the device is a

CMOS serial EEPROM array with Intersil’s Block

LockTM protection.

The EEPROM array is internally organized as 272 x 8

bits with 16-Byte pages, and utilizes Intersil’s propri-

etary Direct WriteTM cells, providing a minimum endur-

ance of 100,000 Page Write cycles and a minimum

data retention of 100 years.

Device

Title

Features/Functions

Internal

Temperature

Sensor

External

Sensor

Input

Internal

Voltage

Reference

VREF

Input /

Ouput

General

Purpose

EEPROM

Look Up

Table

Organi-

zation

# of

DACs

FSO

Current

DAC

Setting

Resistors

X96010

Sensor Conditioner with

Dual Look-Up Table

Memory and DACs

Yes

Dual Bank

Dual

Ext

X96011

Temperature Sensor with

Look-Up Table Memory

and DAC

Yes

Single

Bank

Single

Int

X96012

Universal Sensor

Conditioner with Dual

Look-Up Table Memory

and DACs

Yes

Dual Bank

Dual

Ext / Int

X96012

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