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
2
I
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
A1
A0
O
1
2
3
4
V-
5
10
VCCSCL
RH
9
RW
8
7
RL
GND
6
FN6421.0
Features
• 256 resistor taps
2
•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
°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
1
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. #
Copyright Intersil Americas Inc. 2007. All Rights Reserved
Block Diagram
ISL22313
V
CC
SCL
SDA
A1
A0
I2C
INTERFACE
POWER UP
INTERFACE,
CONTROL
AND
STATUS
LOGIC
NON-VOLATILE
REGISTERS
GND
WR
VOLATILE
REGISTER
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
2
2
C interface
V-
RH
RL
RW
C interface
2
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
V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +6V
CC
V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-6V to 0.3V
CC
+0.3
Voltage at any DCP Pin with
respect to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V- to V
IW (10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±6mA
CC
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
JA
Analog Specifications Over recommended operating conditions unless otherwise stated. Limits are established by characterization.
Thermal Resistance (Typical, Note 3) θ
(°C/W)
JA
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
V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.25V to 5.5V
CC
V-. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-2.25V to -5.5V
Max Wiper Current Iw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±3.0mA
SYMBOL PARAMETER TEST CONDITIONS
R
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
, V
RH
R
C
H/CL/CW
W
DCP terminal voltage VRH and VRL to GND V- V
RL
Wiper resistance RH - floating, VRL = V-, force IW current to
the wiper, I
= (VCC - VRL)/R
W
Potentiometer capacitance See Macro Model below. 10/10/25 pF
(Note 16)
I
LkgDCP
VOLTAGE DIVIDER MODE (V- @ RL; V
INL
Leakage on DCP pins Voltage at pin from GND to V
@ RH; measured at RW, unloaded)
CC
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)
TC
(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
V
TOTAL
CC
MIN
(Note 18)
TYP
(Note 4)
MAX
(Note 18) UNIT
CC
70 250 Ω
0.1 1 µA
V
(Note 5)
(Note 5)
(Note 5)
(Note 5)
3
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
f
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
TC
(Notes 15, 16)
Resistance temperature coefficient DCP register set between 32 hex and FF hex ±50 ppm/°C
R
TYP
(Note 4)
MAX
(Note 18) UNIT
(Note 11)
(Note 11)
(Note 11)
(Note 11)
(Note 11)
(Note 11)
Operating Specifications Over the recommended operating conditions unless otherwise specified. Limits are established by
characterization.
SYMBOL PARAMETER TEST CONDITIONS
I
CC1
VCC Supply Current (volatile
write/read)
V
= +5.5V, V- = -5.5V, f
CC
SDA = Open; (for I
= 400kHz;
SCL
2
C, active, read and write
states)
V
= +2.25V, V- = -2.25V, f
CC
SDA = Open; (for I
2
C, active, read and write
SCL
states)
I
V-1
V- Supply Current (volatile write/read) V- = -5.5V, V
SDA = Open; (for I
= +5.5V, f
CC
SCL
2
C, active, read and write
= 400kHz;
states)
V- = -2.25V, V
SDA = Open; (for I
= +2.25V, f
CC
2
C, active, read and write
SCL
states)
I
CC2
VCC Supply Current (non-volatile
write/read)
V
= +5.5V, V- = -5.5V, f
CC
SDA = Open; (for I
= 400kHz;
SCL
2
C, active, read and write
states)
V
= +2.25V, V- = -2.25V, f
CC
SDA = Open; (for I
2
C, active, read and write
SCL
states)
I
V-2
V- Supply Current (non-volatile
write/read)
V- = -5.5V, V
SDA = Open; (for I
= +5.5V, f
CC
= 400kHz;
SCL
2
C, active, read and write
states)
V- Supply Current (non-volatile
write/read)
V- = -2.25V, V
SDA = Open; (for I
CC
= +2.25V, f
2
C, active, read and write
SCL
states)
= 400kHz;
= 400kHz;
= 400kHz;
= 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
4
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
I
SB
VCC Current (standby) V
= +5.5V, V- = -5.5V @ +85°C, I2C
CC
interface in standby state
= +5.5V, V- = -5.5V @ +125°C, I2C
V
CC
interface in standby state
= +2.25V, V- = -2.25V @ +85°C, I2C
V
CC
interface in standby state
= +2.25V, V- = -2.25V @ +125°C, I2C
V
CC
interface in standby state
I
V-SB
V- Current (standby) V- = -5.5V, V
= +5.5V @ +85°C, I2C
CC
interface in standby state
V- = -5.5V, V
interface in standby state
V- = -2.25V, V
interface in standby state
V- = -2.25V, V
interface in standby state
I
SD
VCC Current (shutdown) V
= +5.5V, V- = -5.5V @ +85°C, I2C
CC
= +5.5V @ +125°C, I2C
CC
= +2.25V @ +85°C, I2C
CC
= +2.25V @ +125°C, I2C
CC
interface in standby state
= +5.5V, V- = -5.5V @ +125°C, I2C
V
CC
interface in standby state
= +2.25V, V- = -2.25V @ +85°C, I2C
V
CC
interface in standby state
= +2.25V, V- = -2.25V @ +125°C, I2C
V
CC
interface in standby state
I
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
CC
= +5.5V @ +125°C, I2C
CC
= +2.25V @ +85°C, I2C
CC
interface in standby state
V- = -2.25V, V
= +2.25V @ +125°C, I2C
CC
interface in standby state
I
LkgDig
t
DCP
(Note 16)
t
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
t
D
ramp rate 0.2 V/ms
CC
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
CC
Register recall completed, and I
in standby state
EEPROM SPECIFICATION
EEPROM Endurance 1,000,000 Cycles
EEPROM Retention Temperature T ≤ +55°C50 Years
t
WC
(Note 17)
Non-volatile Write cycle time 12 20 ms
CC
2
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
1.5 µs
5ms
5
FN6421.0
July 17, 2007
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