intersil ISL90460 DATA SHEET

®

www.BDTIC.com/Intersil

ISL90460

Single Volatile 32-Tap XDCP™

Data Sheet October 7, 2005

Digitally Controlled Potentiometer (XDCP)

The Intersil ISL90460 is a digitally controlled potentiometer
(XDCP). Configured as a variable resistor, the device
consists of a resistor array, wiper switches, a control section,
and volatile memory. The wiper position is controlled by a
2-pin Up/Down interface.

The potentiometer is implemented by a resistor array
composed of 31 resistive elements and a wiper switching
network. Between each element and at either end are tap
points accessible to the wiper terminal. The position of the
wiper element is controlled by the CS

The device can be used in a wide variety of applications
including:

• LCD contrast control

• Parameter and bias adjustments

• Industrial and automotive control

• Transducer adjustment of pressure, temperature, position,
chemical, and optical sensors

• Laser Diode driver biasing

• Gain control and offset adjustment

and U/D inputs.

FN8225.3

Features

• Volatile Solid-State Potentiometer

• 2-pin UP/DN Interface

• DCP Terminal Voltage, 2.7V to 5.5V

• Tempco 35ppm/

°C Typical

• 32 Wiper Tap Points

• Low Power CMOS

- Active current 25µA max.

- Supply current 0.3µA

• Available R

• Temp Range

Values = 10kΩ, 50kΩ, 100kΩ

TOTAL

-40°C to +85°C

• Packages

- 5 Ld SC-70, SOT-23

• Pb-Free Plus Anneal Available (RoHS Compliant)

Pinout

ISL90460

(5 LD SOT-23, SC-70)

TOP VIEW

VDD

RH

GND

U/D

CS

Ordering Information

PART NUMBER PART MARKING R

ISL90460WIE527-TK AJM 10 -40 to +85 5 Ld SC-70 P5.049

ISL90460WIE527Z-TK (See Note) DDY -40 to +85 5 Ld SC-70 (Pb-free) P5.049

ISL90460WIH527-TK AJV -40 to +85 5 Ld SOT-23 P5.046

ISL90460WIH527Z -TK (See Note) DDZ -40 to +85 5 Ld SOT-23 (Pb-free) P5.046

ISL90460UIE527-TK AJN 50 -40 to +85 5 Ld SC-70 P5.049

ISL90460UIE527Z-TK (See Note) DDW -40 to +85 5 Ld SC-70 (Pb-free) P5.049

ISL90460UIH527-TK AJX -40 to +85 5 Ld SOT-23 P5.046

ISL90460UIH527Z -TK (See Note) DDX -40 to +85 5 Ld SOT-23 (Pb-free) P5.046

ISL90460TIE527-TK AJO 100 -40 to +85 5 Ld SC-70 P5.049

ISL90460TIE527Z-TK (See Note) DDU -40 to +85 5 Ld SC-70 (Pb-free) P5.049

ISL90460TIH527-TK AJW -40 to +85 5 Ld SOT-23 P5.046

ISL90460TIH527Z-TK (See Note) DDV -40 to +85 5 Ld SOT-23 (Pb-free) P5.046

NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are
RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed
the Pb-free requirements of IPC/JEDEC J STD-020.

(K) TEMP RANGE (°C) PACKAGE (Tape and Reel) PKG. DWG. #

TOTAL

1

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

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

XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved

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

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

ISL90460

www.BDTIC.com/Intersil

Block Diagram

UP/DOWN

(U/D

)

DEVICE SELECT

)

(CS

CONTROL

AND

MEMORY

GND (GROUND)

GENERAL

Pin Descriptions

V

CC

RH

SOT-23/SC-70

5-PIN SYMBOL DESCRIPTION

1 VDD Supply voltage

2 GND Ground

3U/D

4CS

5 RH High terminal/Wiper terminal

Up - Down

Chip select

2

FN8225.3

October 7, 2005

ISL90460

www.BDTIC.com/Intersil

Absolute Maximum Ratings Recommended Operating Conditions

Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C

Voltage on CS

, U/D and VCC with Respect to GND . . . . -1V to +7V

Lead Temperature (Soldering 10s) . . . . . . . . . . . . . . . . . . . . . 300°C

(10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±6mA

I

W

Power Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1mW

CAUTION: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only; functional operation
of the device (at these or any other conditions above those listed in the operational sections of this specification) is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.

Potentiometer Specifications Over recommended operating conditions unless otherwise stated

SYMBOL PARAMETER CONDITIONS MIN

R

TOT

V

R

I

W

C

H/CL/CW

NOTES:

1. Absolute linearity is utilized to determine actual wiper voltage versus expected voltage = (R
n = 1 .. 29 only.

2. Relative linearity is a measure of the error in step size between taps = R

3. 1 Ml = Minimum Increment = R

4. Typical values are for T

End to end resistance W version 8 10 12 kΩ

U version 40 50 60 kΩ

T version 80 100 120 kΩ

RH, RL terminal voltages 0 V

R

Noise Ref: 1kHz -120 dBV

Wiper Resistance 600 Ω

W

Wiper Current 0.6 mA

Resolution 132Taps

Absolute linearity

Relative linearity

temperature coefficient ±35 ppm/°C

R

TOTAL

(Note 1) R

(Note 2) R

H(n)(actual)-RH(n)(expected)

-[R

H(n+1)

Potentiometer capacitances See equivalent circuit 10/10/25 pF

/31.

TOT

= 25°C and nominal supply voltage.

A

Temperature Range (Industrial) . . . . . . . . . . . . . . . . . . -40°C to 85°C

Supply Voltage (V

) . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V

CC

TYP

(Note 4) MAX UNIT

CC

V

±1 MI

(Note 3)

]±0.5MI

H(n)+MI

H

(n+1)

(actual) - R

(n)

H

-[R

+ Ml] = ±0.5 Ml, n = 1 .. 29 only.

(n)

H

(expected)) = ±1 Ml Maximum.

(n)

H

(Note 3)

Equivalent Circuit

R

TOTAL

R

H

C

H

C

W

R

W

R

L

C

L

3

FN8225.3

FN8225.2

October 7, 2005

June 6, 2005