1

®

FN8216.0

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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Copyright Intersil Americas Inc. 2005. All Rights Reserved

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X96012

Universal Sensor Conditioner with Dual Look Up Table Memory and DACs

FEATURES

• Two Programmable Current Generators

—±3.2 mA max.

—8-bit (256 Step) Resolution

—Internally Programmable full scale Current

Outputs

—External Resistor Pin to set full scale Current

Outputs

• Integrated 8-bit A/D Converter

• Internal Voltage Reference with Output/Input

• Temperature Compensation

—Internal or External Sensor

—-40°C to +100°C Range

—2.2°C / step resolution

—EEPROM Look-up Tables

• Hot Pluggable

• 2176-bit EEPROM

—17 Pages

—16 Bytes per Page

• Write Protection Circuitry

—Intersil BlockLock™

—Logic Controlled Protection

—2-wire Bus with 3 Slave Address Bits

• 3V to 5.5V, Single Supply Operation

• Package

—14-Lead TSSOP

APPLICATIONS

• PIN Diode Bias Control

• RF PA Bias Control

• Temperature Compensated Process Control

• Laser Diode Bias Control

•Fan Control

• Motor Control

• Sensor Signal Conditioning

• Data Aquisition Applications

• Gain vs. Temperature Control

• High Power Audio

• Open Loop Temperature Compensation

• Close Loop Current, Voltage, Pressure, Temper-

ature, Speed, Position Programmable Voltage

sources, electronic loads, output amplifiers, or

function generator

DESCRIPTION

The X96012 is a highly integrated bias controller which

incorporates two digitally controlled Programmable Cur-

rent Generators, temperature compensation with dedi-

cated look-up tables, and supplementary EEPROM

array. All functions of the device are controlled via a 2-

wire digital serial interface.

Two temperature compensated Programmable Cur-

rent Generators, vary the output current with tempera-

ture according to the contents of the associated

nonvolatile look-up table. The look-up table may be

programmed with arbitrary data by the user, via the 2-

wire serial port, and either an internal or external tem-

perature sensor may be used to control the output cur-

rent response.

The integrated General Purpose EEPROM is included

for product data storage.

BLOCK DIAGRAM

SDA

SCL

WP

2-Wire

I2

VRef

R2

VSense

Interface

A2, A1, A0

DAC 2

ADC

Look-up

Table 1

Look-up

Table 2

Control

& Status

General

Purpose

Memory

Mux

Mux

I1

R1

DAC 1

Mux

Mux

Temperature

Sensor

Voltage

Reference

Data Sheet

March 10, 2005