intersil ISL22313 DATA SHEET

ISL22313

Single Digitally Controlled Potentiometer (XDCP™)

Data Sheet July 17, 2007

Low Noise, Low Power, I2C® Bus, 256 Taps

The ISL22313 integrates a single digitally controlled potentiometer (DCP), control logic and non-volatile memory on a monolithic CMOS integrated circuit.

The digitally controlled potentiometer is implemented with a combination of resistor elements and CMOS switches. The position of the wipers are controlled by the user through the

C bus interface. The potentiometer has an associated volatile Wiper Register (WR) and a non-volatile Initial Value Register (IVR) that can be directly written to and read by the user. The contents of the WR control the position of the wiper. At power up the device recalls the contents of the DCP’s IVR to the WR.

The ISL22313 also has 14 general purpose non-volatile registers that can be used as storage of lookup table for multiple wiper position or any other valuable information.

The ISL22313 features a dual supply, that is beneficial for applications requiring a bipolar range for DCP terminals between V- and VCC.

The DCP can be used as a three-terminal potentiometer or as a two-terminal variable resistor in a wide variety of applications including control, parameter adjustments, and signal processing.

Pinout

ISL22313

(10 LD MSOP)

TOP VIEW

SDA

V-

VCCSCL

GND

FN6421.0

Features

• 256 resistor taps

•I

C serial interface

- Two address pins, up to four devices per bus

• Non-volatile EEPROM storage of wiper position

• 14 General Purpose non-volatile registers

• High reliability

- Endurance: 1,000,000 data changes per bit per register

- Register data retention: 50 years @ T≤+55

• Wiper resistance: 70Ω typical @ 1mA

• Standby current <2.5µA max

• Shutdown current <2.5µA max

• Dual power supply

- VCC = 2.25V to 5.5V

- V- = -2.25V to -5.5V

• DCP terminal voltage from V- to VCC

•10kΩ, 50kΩ or 100kΩ total resistance

• Extended industrial temperature range: -40 to +125

• 10 Lead MSOP

• Pb-free plus anneal product (RoHS compliant)

°C

Ordering Information

PART

NUMBER

(Notes 1, 2)

ISL22313TFU10Z 313TZ 100 -40 to +125 10 Ld MSOP M10.118 ISL22313UFU10Z 313UZ 50 -40 to +125 10 Ld MSOP M10.118 ISL22313WFU10Z 313WZ 10 -40 to +125 10 Ld MSOP M10.118

NOTES:

1. 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.

2. Add “-TK” suffix for 1,000 Tape and Reel option

PART

MARKING

RESISTANCE

OPTION

(kΩ)

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

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

TEMP.

RANGE

(°C)

| Intersil (and design) and XDCP are registered trademarks of Intersil Americas Inc.

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

PACKAGE

(Pb-Free) PKG. DWG. #

Block Diagram

ISL22313

SCL

SDA

A1 A0

I2C

INTERFACE

POWER UP

INTERFACE,

CONTROL

AND

STATUS

LOGIC

NON-VOLATILE

REGISTERS

GND

VOLATILE

AND

WIPER

CONTROL

CIRCUITRY

Pin Descriptions

MSOP PIN SYMBOL DESCRIPTION

1 SCL Open drain I2C interface clock input 2 SDA Open drain Serial data I/O for the I 3 A1 Device address input for the I 4 A0 Device address input for the I2C interface 5 V- Negative supply pin 6 GND Device ground pin 7 RL “Low” terminal of DCP 8 RW “Wiper” terminal of DCP 9 RH “High” terminal of DCP

10 VCC Power supply pin

C interface

V-

C interface

FN6421.0

July 17, 2007

ISL22313

Absolute Maximum Ratings Thermal Information

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

Voltage at any Digital Interface Pin

with Respect to GND . . . . . . . . . . . . . . . . . . . . . -0.3V to V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +6V

V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-6V to 0.3V

+0.3

Voltage at any DCP Pin with

respect to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V- to V

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

Latchup . . . . . . . . . . . . . . . . . . . . . . . . . Class II, Level A at +125°C

ESD

Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3kV

Machine Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .400V

CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty.

NOTE:

is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

3. θ

Analog Specifications Over recommended operating conditions unless otherwise stated. Limits are established by characterization.

Thermal Resistance (Typical, Note 3) θ

(°C/W)

10 Lead MSOP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Maximum Junction Temperature (Plastic Package). . . . . . . .+150°C

Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below

http://www.intersil.com/pbfree/Pb-FreeReflow.asp

Recommended Operating Conditions

Temperature Range (Full Industrial) . . . . . . . . . . . .-40°C to +125°C

Power Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15mW

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.25V to 5.5V

V-. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-2.25V to -5.5V

Max Wiper Current Iw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±3.0mA

SYMBOL PARAMETER TEST CONDITIONS

TOTAL

RH to RL resistance W option 10 kΩ

U option 50 kΩ

T option 100 kΩ RH to RL resistance tolerance -20 +20 % End-to-End Temperature Coefficient W option ±150 ppm/°C

U, T option ±50 ppm/°C

, V

H/CL/CW

DCP terminal voltage VRH and VRL to GND V- V

Wiper resistance RH - floating, VRL = V-, force IW current to

the wiper, I

= (VCC - VRL)/R

Potentiometer capacitance See Macro Model below. 10/10/25 pF

(Note 16)

LkgDCP

VOLTAGE DIVIDER MODE (V- @ RL; V

INL

Leakage on DCP pins Voltage at pin from GND to V

@ RH; measured at RW, unloaded)

Integral non-linearity W option -1.5 ±0.5 1.5 LSB

(Note 9)

U, T option -1.0 ±0.2 1.0

DNL

Differential non-linearity W option -1.0 ±0.4 1.0 LSB

(Note 8)

U, T option -0.5 ±0.15 0.5

ZSerror (Note 6)

FSerror (Note 7)

(Notes 10, 16)

Zero-scale error W option 0 1 5 LSB

U, T option 0 0.5 2 Full-scale error W option -5 -1 0 LSB

U, T option -2 -1 0 Ratiometric temperature coefficient DCP register set to 80 hex ±4 ppm/°C

TOTAL

MIN

(Note 18)

TYP

(Note 4)

MAX

(Note 18) UNIT

70 250 Ω

0.1 1 µA

(Note 5)

FN6421.0

July 17, 2007

ISL22313

Analog Specifications Over recommended operating conditions unless otherwise stated. Limits are established by characterization.

(Continued)

MIN

SYMBOL PARAMETER TEST CONDITIONS

cutoff

(Note 16)

-3dB cut off frequency Wiper at midpoint (80hex) W option (10k) 1000 kHz

Wiper at midpoint (80hex) U option (50k) 250 kHz

(Note 18)

Wiper at midpoint (80hex) T option (100k) 120 kHz

RESISTOR MODE (Measurements between RW and RL with RH not connected, or between RW and RH with RL not connected)

RINL

Integral non-linearity W option -3 ±1.5 3 MI

(Note 14)

U, T option -1 ±0.3 1 MI

RDNL

Differential non-linearity W option -1.5 ±0.4 1.5 MI

(Note 13)

U, T option -0.5 ±0.15 0.5 MI

Roffset

Offset W option 0 1 5 MI

(Note 12)

U, T option 0 0.5 2 MI

(Notes 15, 16)

Resistance temperature coefficient DCP register set between 32 hex and FF hex ±50 ppm/°C

TYP

(Note 4)

MAX

(Note 18) UNIT

(Note 11)

Operating Specifications Over the recommended operating conditions unless otherwise specified. Limits are established by

characterization.

SYMBOL PARAMETER TEST CONDITIONS

CC1

VCC Supply Current (volatile write/read)

= +5.5V, V- = -5.5V, f

SDA = Open; (for I

= 400kHz;

SCL

C, active, read and write

states) V

= +2.25V, V- = -2.25V, f

SDA = Open; (for I

C, active, read and write

SCL

states)

V-1

V- Supply Current (volatile write/read) V- = -5.5V, V

SDA = Open; (for I

= +5.5V, f

SCL

C, active, read and write

= 400kHz;

states) V- = -2.25V, V

SDA = Open; (for I

= +2.25V, f

C, active, read and write

SCL

states)

CC2

VCC Supply Current (non-volatile write/read)

= +5.5V, V- = -5.5V, f

SDA = Open; (for I

= 400kHz;

SCL

C, active, read and write

states) V

= +2.25V, V- = -2.25V, f

SDA = Open; (for I

C, active, read and write

SCL

states)

V-2

V- Supply Current (non-volatile write/read)

V- = -5.5V, V SDA = Open; (for I

= +5.5V, f

= 400kHz;

SCL

C, active, read and write

states)

V- Supply Current (non-volatile write/read)

V- = -2.25V, V SDA = Open; (for I

= +2.25V, f

C, active, read and write

SCL

states)

= 400kHz;

MIN

(Note 18)

-1 -0.18 mA

-0.4 -0.06 mA

-2 -1.2 mA

-0.7 -0.4 mA

TYP

(Note 4)

MAX

(Note 18) UNIT

0.07 0.15 mA

0.02 0.05 mA

12mA

0.3 0.7 mA

FN6421.0

July 17, 2007

ISL22313

Operating Specifications Over the recommended operating conditions unless otherwise specified. Limits are established by

characterization. (Continued)

SYMBOL PARAMETER TEST CONDITIONS

VCC Current (standby) V

= +5.5V, V- = -5.5V @ +85°C, I2C

interface in standby state

= +5.5V, V- = -5.5V @ +125°C, I2C

interface in standby state

= +2.25V, V- = -2.25V @ +85°C, I2C

interface in standby state

= +2.25V, V- = -2.25V @ +125°C, I2C

interface in standby state

V-SB

V- Current (standby) V- = -5.5V, V

= +5.5V @ +85°C, I2C

interface in standby state V- = -5.5V, V

interface in standby state V- = -2.25V, V

interface in standby state

VCC Current (shutdown) V

= +5.5V, V- = -5.5V @ +85°C, I2C

= +5.5V @ +125°C, I2C

= +2.25V @ +85°C, I2C

= +2.25V @ +125°C, I2C

interface in standby state

= +5.5V, V- = -5.5V @ +125°C, I2C

interface in standby state

= +2.25V, V- = -2.25V @ +85°C, I2C

interface in standby state

= +2.25V, V- = -2.25V @ +125°C, I2C

interface in standby state

V-SB

V- Current (standby) V- = -5.5V, V

interface in standby state V- = -5.5V, V

interface in standby state V- = -2.25V, V

= +5.5V @ +85°C, I2C

= +5.5V @ +125°C, I2C

= +2.25V @ +85°C, I2C

interface in standby state V- = -2.25V, V

= +2.25V @ +125°C, I2C

interface in standby state

LkgDig

DCP

(Note 16)

ShdnRec

(Note 16)

Leakage current, at pins A0, A1, SDA, and SCL

DCP wiper response time SCL falling edge of last bit of DCP data byte

DCP recall time from shutdown mode SCL falling edge of last bit of ACR data byte

Vpor Power-on recall voltage Minimum V

VCC Ramp V

ramp rate 0.2 V/ms

Power-up delay VCC above Vpor, to DCP Initial Value

Voltage at pin from GND to V

to wiper new position

to wiper stored position and RH connection

at which memory recall occurs 1.9 2.1 V

EEPROM SPECIFICATION

EEPROM Endurance 1,000,000 Cycles EEPROM Retention Temperature T ≤ +55°C50 Years

(Note 17)

Non-volatile Write cycle time 12 20 ms

C Interface

MIN

(Note 18)

-2.5 -0.7 µA

-4 -3 µA

-1.5 -0.3 µA

-3 -1 µA

-2.5 -0.7 µA

-4 -3 µA

-1.5 -0.3 µA

-3 -1 µA

-1 1 µA

TYP

(Note 4)

MAX

(Note 18) UNIT

0.2 1.5 µA

12.5µA

0.1 1 µA

0.5 2 µA

0.2 1.5 µA

12.5µA

0.1 1 µA

0.5 2 µA

1.5 µs

5ms

FN6421.0

July 17, 2007

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