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PDF ( 数据手册 , 数据表 ) ISL22313

零件编号 ISL22313
描述 Single Digitally Controlled Potentiometer
制造商 Intersil Corporation
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ISL22313 数据手册, 描述, 功能
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ISL22313
® Single Digitally Controlled Potentiometer (XDCP™)
Data Sheet
July 17, 2007
FN6421.0
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
I2C 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
SCL
SDA
A1
A0
V-
1O
2
3
4
5
10 VCC
9 RH
8 RW
7 RL
6 GND
Features
• 256 resistor taps
• I2C 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°C
• 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°C
• 10 Lead MSOP
• Pb-free plus anneal product (RoHS compliant)
Ordering Information
PART
NUMBER
(Notes 1, 2)
PART
MARKING
RESISTANCE
OPTION
(kΩ)
TEMP.
RANGE
(°C)
PACKAGE
(Pb-Free)
PKG. DWG. #
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
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) and XDCP are registered trademarks of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.







ISL22313 pdf, 数据表
www.ADa0taaSnhedetA4U1.cPoimn Timing
SCL
START
SDA
A0, A1
tSU:A
ISL22313
CLK 1
STOP
tHD:A
Typical Performance Curves
80
T = +125ºC
70
60
T = +25ºC
50
40
30
T = -40ºC
20
10
0
0 50 100 150 200
TAP POSITION (DECIMAL)
FIGURE 1. WIPER RESISTANCE vs TAP POSITION
[ I(RW) = VCC/RTOTAL ] FOR 10kΩ (W)
250
2.0
1.5
1.0
ICC
0.5
0
-0.5
IV-
-1.0
-1.5
-2.0
-40 0 40 80 120
TEMPERATURE (°C)
FIGURE 2. STANDBY ICC AND IV- vs TEMPERATURE
0.50
0.25
VCC = 2.25V
T = +25ºC
0
-0.25
-0.50
0
VCC = 5.5V
50 100 150 200 250
TAP POSITION (DECIMAL)
FIGURE 3. DNL vs TAP POSITION IN VOLTAGE DIVIDER
MODE FOR 10kΩ (W)
0.50
0.25
VCC = 5.5V
T = +25ºC
0
-0.25
-0.50
0
VCC = 2.25V
50 100 150 200 250
TAP POSITION (DECIMAL)
FIGURE 4. INL vs TAP POSITION IN VOLTAGE DIVIDER
MODE FOR 10kΩ (W)
8 FN6421.0
July 17, 2007














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