X96012 Datasheet, PDF (1/27 Pages) Intersil Corporation – Universal Sensor Conditioner with Dual Look Up Table Memory and DACs

X96012
®
Universal Sensor Conditioner with Dual Look Up Table Memory and DACs
Data Sheet
March 10, 2005
FN8216.0
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
BLOCK DIAGRAM
VRef
VSense
Voltage
Reference
Mux
ADC
Mux
Temperature
Sensor
SDA
SCL
WP
A2, A1, A0
2-Wire
Interface
• 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.
Look-up
Table 2
Mux
R2
DAC 2
I2
Look-up
Table 1
Mux
Control
& Status
DAC 1
I1
R1
General
Purpose
Memory
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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