ISL21400USB-EVALZ Intersil, ISL21400USB-EVALZ Datasheet

ISL21400USB-EVALZ

Manufacturer Part Number

ISL21400USB-EVALZ

Description

EVAL BOARD FOR ISL21400

Manufacturer

Intersil

Datasheets

1.ISL21400IU8Z-TK.pdf (17 pages)

2.ISL21400USB-EVALZ.pdf (2 pages)

Specifications of ISL21400USB-EVALZ

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Programmable Temperature Slope

Voltage Reference

The ISL21400 features a precision voltage reference

combined with a temperature sensor whose output voltage

varies linearly with temperature. The precision 1.20V

reference has a very low temperature coefficient (tempco),

and its output voltage is scaled by an internal DAC (V

produce a temperature stable output voltage that is

programmable from 0V to 1.20V. The output voltage from the

temperature sensor (V

a temperature dependent output voltage.

The slope of the V

programmed to be positive or negative in the range

-2.1mV/°C to +2.1mV/°C. A programmable gain amplifier

(PGA) sums the V

gains of 1x, 2x, and 4x to scale the output up to 4.8V and the

slope to ±8.4mV/°C.

The V

resolution via an I

non-volatile registers. The PGA gain is also set via the I

bus and the value is stored in a non-volatile register.

Non-volatile memory storage assures the programmed

settings are retained on power-down, eliminating the need

for software initialization at device power-up.

Temperature Characteristics Curve

REF

3.0

2.5

2.0

1.5

1.0

0.5

0.0

-40

and V

TS = 0

-15

C bus and the values are stored in

terms are programmable with 8 bits of

TS = 127

and the V

portion of the output voltage can be

= 2

= 1

TEMPERATURE (°C)

) is summed with V

REF

voltages and provides

Data Sheet

TS = 255

TS = 127

REF

TS = 255

to produce

REF

1-888-INTERSIL or 1-888-468-3774

) to

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

Pin Descriptions

Features

• Programmable reference voltage

• Programmable temperature slope

• Programmable Gain Amplifier

• Non-volatile storage of programming registers

• I

• 2% total accuracy over temperature and V

• 200µA typical active supply current

• Operating temperature range = -40°C to +85°C

• 8 Ld MSOP package

• Pb-free (RoHS compliant)

Applications

• RF power amplifier bias compensation

• LCD bias compensation

• Laser diode bias compensation

• Sensor bias and linearization

• Data acquisition systems

• Variable DAC reference

• Amplifier biasing

Pinout

MSOP

C serial interface

March 31, 2011

All other trademarks mentioned are the property of their respective owners.

SYMBOL

VOUT

SDA

SCL

Intersil (and design) is a registered trademark of Intersil Americas Inc.

Hardwire slave address pin for I

Ground pin

Serial bus clock input

Serial bus data input/output

Output voltage

Device power supply

(8 LD MSOP)

TOP VIEW

ISL21400

DESCRIPTION

ISL21400

SDA

SCL

OUT

FN8091.3

range

C serial bus

Related parts for ISL21400USB-EVALZ

ISL21400USB-EVALZ Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2006-2008, 2011. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL21400 FN8091 ...

Page 2

... ISL21400IU8Z (Note 2) DEW ISL21400IU8Z-TK (Notes 1, 2) DEW ISL21400USB-EVALZ Evaluation Board 1. Please refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). ...

Page 3

... Technical Brief TB363 Level 2 Maximum Junction Temperature (Plastic Package +150°C Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp Recommended Operating Conditions Temperature .-40°C to +85°C Supply Voltage 2.7V to 5.5V = +25°C to +85°C, Unless Otherwise Noted. ...

Page 4

Analog Specifications V = 5.5V SYMBOL PARAMETER TS4 Incremental Temperature Sensor Slope A TSNL Temperature Slope Non-Linearity DNL DAC Relative Linearity (V = 2.7 to 5.5V) CC INL DAC Absolute Linearity ( 5.5V) V ...

Page 5

Serial Interface Specification for SCL, SDA, A0, A1, A2 Unless Otherwise Noted. SYMBOL PARAMETER I Input Leakage LI V Input LOW Voltage IL V Input HIGH Voltage IH Hysteresis SDA and SCL Input Buffer Hysteresis V SDA Output Buffer LOW ...

Page 6

Serial Interface Specification for SCL, SDA, A0, A1, A2 Unless Otherwise Noted. (Continued) SYMBOL PARAMETER t SDA and SCL Fall Time F Cb Capacitive Loading of SDA or SCL Rpu SDA and SCL Bus Pull-up Resistor Off-chip I Output Leakage ...

Page 7

Serial Interface Specification for SCL, SDA, A0, A1, A2 Unless Otherwise Noted. (Continued) SYMBOL PARAMETER NOTES:(Continued) 15. Temperature Slope Non- linearity is measured over the specified temperature range. The actual change in output voltage is subtracted from the expected change ...

Page 8

Typical Performance Curves 3 2.5 2 127 1 1 0.5 0.0 -40 - TEMPERATURE (°C) FIGURE TEMPERATURE (A OUT ...

Page 9

Typical Performance Curves 1.22 1.21 1.20 1.19 V REF TS REGISTER = 127d 1.18 -40 - TEMPERATURE (°C) FIGURE 7. ACCURACY vs TEMPERATURE (-40°C TO +85° +25° ...

Page 10

Typical Performance Curves Pin Descriptions V OUT Programmable voltage output pin. Absolute voltage is determined by device temperature and Equation 1. Drive capability is limited to ±500µA output current and 5000pF output capacitance. A2, A1, A0 Hardware slave address pins ...

Page 11

D7 Addr (MSB REF REF 1 TS7 TS6 DACs Section The ISL21400 contains two 8-bit DACs whose registers can 2 be programmed via the I C ...

Page 12

All communication over the I C interface is conducted by sending the MSB of each byte of data first. Protocol Conventions Data states on the SDA line can change only during SCL LOW periods. SDA state changes during SCL ...

Page 13

SCL SDA START FIGURE 14. VALID DATA CHANGES, START AND STOP CONDITIONS SCL FROM MASTER SDA OUTPUT FROM TRANSMITTER SDA OUTPUT FROM RECEIVER START FIGURE 15. ACKNOWLEDGE RESPONSE FROM RECEIVER FIGURE 15. ACKNOWLEDGE RESPONSE FROM RECEIVER S SIGNALS FROM THE ...

Page 14

S SIGNALS T FROM THE A IDENTIFICATION MASTER R BYTE WITH R SIGNAL AT SDA SIGNALS FROM THE SLAVE Applications Information Power-Up Considerations The ISL21400 has on-chip EEPROM memory ...

Page 15

In many cases a form of Equation 6 is needed which yields a V change with respect to temperature. By rearranging, OUT we get Equation OUT • • ,(in mV/° ...

Page 16

OUT 2 GND +5V REGULATOR BUS VCC SCL 6 SDA VOUT GND A2 ISL21400 FIGURE 19. LDMOS RFPA BIAS CONTROL 16 ISL21400 ...

Page 17

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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