intersil X9319 DATA SHEET

®

www.BDTIC.com/Intersil

X9319

Data Sheet FN8185.2September 26, 2006

Digitally Controlled Potentiometer
(XDCP™)

FEATURES

• Solid-state potentiometer

• 3-wire serial interface

• Terminal voltage, 0 to +10V

• 100 wiper tap points
—Wiper position stored in nonvolatile memory

and recalled on power-up

• 99 resistive elements
—Temperature compensated
—End to end resistance range ±20%

• Low power CMOS
—V
—Active current, 3mA max.
—Standby current, 1mA max.

• High reliability
—Endurance, 100,000 data changes per bit
—Register data retention, 100 years

•R

• Packages
—8 Ld SOIC and PDIP

• Pb-free plus anneal available (RoHS compliant)

APPLICATIONS

= 5V

CC

value = 10kΩ and 50kΩ

TOTAL

DESCRIPTION

The Intersil X9319 is a digitally controlled potentiometer
(XDCP). The device consists of a resistor array, wiper
switches, a control section, and nonvolatile memory.
The wiper position is controlled by a 3-wire interface.

The potentiometer is implemented by a resistor array
composed of 99 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

, and INC inputs. The position of the wiper can be

U/D
stored in nonvolatile memory and then be recalled
upon a subsequent power-up operation.

The device can be used as a three-terminal potentiometer
for voltage control or as a two-terminal variable resistor for
current control in a wide variety of applications.

PIN CONFIGURATION

PDIP/SOIC

INC

U/D

R

V

SS

1

2

X9319

3

H

4

V

8

CC

CS

7

R

6

5

L

R

W

,

• LCD bias control

• DC bias adjustment

• Gain and offset trim

• Laser diode bias control

• Voltage regulator output control

BLOCK DIAGRAM

V

(Supply Voltage)

CC

Up/Down

(U/D

)

Increment

(INC

Device Select

(CS

Control

V

SS

General

and

Memory

(Ground)

)

)

U/D
INC

CS

R

H

R

W

R

L

V

CC

V

SS

Up/Down

Counter

7-Bit

Nonvolatile

Memory

Store and

Recall

Control

Circuitry

One

of

One
Hundred
Decoder

99

98

97

96

2

1

0

Detailed

Wiper

Switches

Resistor

Array

R

H

R

L

R

W

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, 2006. 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.

Ordering Information

www.BDTIC.com/Intersil

X9319

PART NUMBER PART MARKING R

X9319WP8 X9319WP 10 0 to +70 8 Ld PDIP MDP0031
X9319WP8I X9319WP I -40 to +85 8 Ld PDIP MDP0031
X9319WS8* X9319W 0 to +70 8 Ld SOIC (150 mil) MDP0027
X9319WS8Z* (Note) X9319W Z 0 to +70 8 Ld SOIC (150 mil) (Pb-free) MDP0027
X9319WS8I* X9319W I -40 to +85 8 Ld SOIC (150 mil) MDP0027
X9319WS8IZ* (Note) X9319W ZI -40 to +85 8 Ld SOIC (150 mil) (Pb-free) MDP0027
X9319UP8I X9319UP I 50 -40 to +85 8 Ld PDIP MDP0031
X9319US8I* X9319U I -40 to +85 8 Ld SOIC (150 mil) MDP0027
X9319US8IZ (Note) X9319U ZI -40 to +85 8 Ld SOIC (150 mil) (Pb-free) MDP0027

*Add "T1" suffix for tape and reel.
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.

(kΩ) TEMP RANGE (°C) PACKAGE PKG. DWG. #

TOTAL

PIN DESCRIPTIONS

DIP/SOIC Symbol Brief Description

1INCIncrement. Toggling INC while CS is low moves the wiper either up or down.

2U/D

3R

4V

SS

5R

6

R

7CS

Up/Down. The U/D input controls the direction of the wiper movement.

The high terminal is equivalent to one of the fixed terminals of a mechanical potentiometer.

H

Ground.

The wiper terminal is equivalent to the movable terminal of a mechanical potentiometer.

W

The low terminal is equivalent to one of the fixed terminals of a mechanical potentiometer.

L

Chip Select. The device is selected when the CS input is LOW, and de-selected when CS is
high.

8V

CC

Supply Voltage.

2

FN8185.2

September 26, 2006

X9319

www.BDTIC.com/Intersil

ABSOLUTE MAXIMUM RATINGS

Junction Temperature under bias ...... -65°C to +135°C

Storage temperature ..........................-65C to +150C

Voltage on CS

, INC, U/D and V

CC

with respect to VSS................................. -1V to +7V

, RW, RL to ground..........................................+12V

R

H

Lead temperature (soldering 10s) ................... +300C

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

I

W

COMMENT

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 CHARACTERISTICS

= 5V ±10%, TA = Full Operating Temperature Range unless otherwise stated)

(V

CC

Limits

Symbol Parameter

End to end resistance tolerance -20 +20 % See ordering information

V

RH/RL

R

I

C

H/CL/CW

V

W

W

CC

RH/RL terminal voltage V

Power rating 25 mW

Wiper resistance 40 200 Ω IW = 1mA

Wiper current

(7)

Noise

Resolution 1 %

Absolute linearity

Relative linearity

R

TOTAL

Ratiometric temperature coefficient

(5)

Potentiometer capacitances 10/10/25 pF See equivalent circuit

Supply Voltage 4.5 5.5 V

(5)

(1)

(2)

temperature coefficient

(5)

(5),(6)

SS

-3.0 +3.0 mA See test circuit

-1 +1 MI

-0.2 +0.2 MI

-20 +20 ppm/C

(4)

-120 dBV Ref: 1kHz

±300 ppm/C

Max. Unit

10 V VSS = 0V

(3)

(3)

Test Conditions/NotesMin. Typ.

for values

V(RH) = 10V,
V(RL) = 0V

D.C. OPERATING CHARACTERISTICS

= 5V ±10%, TA = Full Operating Temperature Range unless otherwise stated)

(V

CC

Limits

Symbol Parameter

I

CC

I

SB

I

LI

V

IH

V

IL

C

IN

VCC active current (Increment) 1 3 mA CS = VIL, U/D = VIL or VIH and

Standby supply current 300 1000 µA CS ≥ 2.4V, U/D and INC =0.4V

CS, INC, U/D input leakage
current

CS, INC, U/D input HIGH voltage 2 VCC + 1 V

CS, INC, U/D input LOW voltage -1 0.8 V

(5)

CS, INC, U/D input capacitance 10 pF V

3

-10 +10 µA VIN = V

(4)

Max.

Unit Test ConditionsMin. Typ.

= 0.4V/2.4V @ min. t

INC
RL, RH, RW not connected

, RH, RW not connected

R

L

to V

SS

= 5V, VIN = VSS, TA = +25C,

CC

f = 1MHz

CC

CYC

FN8185.2

September 26, 2006