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PDF ISL22343 Data sheet ( Hoja de datos )
| Número de pieza | ISL22343 | |
| Descripción | Quad Digitally Controlled Potentiometer | |
| Fabricantes | Intersil | |
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ISL22343
Quad Digitally Controlled Potentiometer (XDCP™)
Data Sheet
August 17, 2015
FN6423.2
Low Noise, Low Power, I2C Bus, 256 Taps
The ISL22343 integrates four digitally controlled
potentiometers (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 (WRi) and a non-volatile Initial Value
Register (IVRi) that can be directly written to and read by the
user. The contents of the WRi control the position of the
corresponding wiper. At power up the device recalls the
contents of the DCP’s IVRi to the correspondent WRi.
The ISL22343 also has 11 general purpose non-volatile
registers that can be used as storage of lookup table for
multiple wiper position or any other valuable information.
The ISL22343 features a dual supply, that is beneficial for
applications requiring a bipolar range for DCP terminals
between V- and VCC.
Each DCP can be used as three-terminal potentiometers or
as two-terminal variable resistors in a wide variety of
applications including control, parameter adjustments, and
signal processing.
Features
• Four potentiometers in one package
• 256 resistor taps
• I2C serial interface
- Three address pins, up to eight devices per bus
• Non-volatile EEPROM storage of wiper position
• 11 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: 70 typical @ 1mA
• Standby current <4µA max
• Shutdown current <4µA max
• Dual power supply
- VCC = 2.25V to 5.5V
- V- = -2.25V to -5.5V
• 10k 50kor 100k total resistance
• Extended industrial temperature range: -40°C to +125°C
• 20 Ld TSSOP or 20 Ld QFN
• Pb-free (RoHS compliant)
Ordering Information
PART NUMBER
(Notes 1, 2)
PART
MARKING
RESISTANCE
OPTION
(k)
TEMP.
RANGE
(°C)
PACKAGE PKG.
(Pb-free) DWG. #
ISL22343TFV20Z
22343 TFVZ
(No longer available, recommended replacement: ISL22343WFR20Z-TK)
100 -40 to +125 20 Ld TSSOP M20.173
ISL22343TFR20Z
22343 TFRZ
(No longer available, recommended replacement: ISL22343WFR20Z-TK
100 -40 to +125 20 Ld QFN L20.5x5
ISL22343UFV20Z
22343 UFVZ
(No longer available, recommended replacement: ISL22343WFR20Z-TK
50 -40 to +125 20 Ld TSSOP M20.173
ISL22343UFR20Z
22343 UFRZ
(No longer available, recommended replacement: ISL22343WFR20Z-TK
50 -40 to +125 20 Ld QFN L20.5x5
ISL22343WFV20Z
22343 WFVZ 10 -40 to +125 20 Ld TSSOP M20.173
ISL22343WFR20Z
22343 WFRZ 10 -40 to +125 20 Ld QFN L20.5x5
NOTES:
1. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte
tin plate PLUS ANNEAL - e3 termination finish, which is 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 tape and reel. Please refer to TB347 for details on reel specifications
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 LLC
Copyright Intersil Americas LLC 2007, 2008, 2015. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL22343
Analog Specifications Over recommended operating conditions unless otherwise stated. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX
(Note 21) (Note 5) (Note 21) UNIT
VMATCH
(Note 11)
DCP-to-DCP Matching
Wipers at the same tap position, the same
voltage at all RH terminals and the same
voltage at all RL terminals
-2
2 LSB
(Note 6)
TCV (Note 12) Ratiometric Temperature Coefficient
fcutoff
(Note 19)
-3dB Cut Off Frequency
DCP register set to 80 hex
Wiper at midpoint (80hex) W option (10k)
Wiper at midpoint (80hex) U option (50k)
±4
1000
250
ppm/°C
kHz
kHz
Wiper at midpoint (80hex) T option (100k)
120
kHz
RESISTOR MODE (Measurements between RWi and RLi with RHi not connected, or between RWi and RHi with RLi not connected)
RINL
Integral Non-linearity
(Note 16)
W option
-3 ±1 3 MI
(Note 13)
U, T option
-1 ±0.3
1 MI
(Note 13)
RDNL
Differential Non-linearity
(Note 15)
W option
-1.5 ±0.5
1.5 MI
(Note 13)
U, T option
-0.5 ±0.04 0.5
MI
(Note 13)
Roffset Offset
(Note 14)
W option
0 1 5 MI
(Note 13)
U, T option
0 0.25 2
MI
(Note 13)
RMATCH
(Note 17)
DCP-to-DCP matching
Wipers at the same tap position with the
same terminal voltages
-3
3 MI
(Note 13)
TCR
Resistance Temperature Coefficient DCP register set between 32 hex and FFhex
(Notes 18, 19)
±40
ppm/°C
Operating Specifications Over the recommended operating conditions unless otherwise specified.
SYMBOL
ICC1
IV-1
ICC2
IV-2
PARAMETER
TEST CONDITIONS
VCC Supply Current
(Volatile Write/Read)
VCC = 5.5V, fSCL = 400kHz; (for I2C Active, Read and
Volatile Write states only)
VCC = 2.25V, fSCL = 400kHz; (for I2C Active, Read and
Volatile Write states only)
V- Supply Current (Volatile V- = -5.5V, VCC = 5.5V, fSCL = 400kHz; (for I2C Active,
Write/Read)
Read and Volatile Write states only)
V- = -2.25V, VCC = 2.25V, fSCL = 400kHz; (for I2C
Active, Read and Volatile Write states only)
VCC Supply Current (Non- VCC = 5.5V, V- = 5.5V, fSCL = 400kHz; (for I2C Active,
volatile Write/Read)
Read and Non-volatile Write states only)
VCC = 2.25V, V- = -2.25V, fSCL = 400kHz; (for I2C
Active, Read and Non-volatile Write states only)
V- Supply Current
V- = -5.5V, VCC = 5.5V, fSCL = 400kHz; (for I2C Active,
(Non-Volatile Write/Read) Read and Non-volatile Write states only)
V- Supply Current
V- = -2.25V, VCC = 2.25V, fSCL = 400kHz; (for I2C
(Non-Volatile Write/Read) Active, Read and Non-volatile Write states only)
MIN
(Note 21)
-0.5
-0.25
-2.0
-1.0
TYP MAX
(Note 5) (Note 21)
0.006
0.5
0.003
0.25
-0.012
-0.045
1.0 2.0
0.3 1.0
-1.2
-0.4
UNIT
mA
mA
mA
mA
mA
mA
mA
mA
5 FN6423.2
August 17, 2015
5 Page 
ISL22343
Typical Performance Curves (Continued)
0.5
0.25
VCC = 5.5V
T = +25°C
0
-0.25
VCC = 2.25V
-0.50
0
50 100 150 200 250
TAP POSITION (DECIMAL)
FIGURE 7. DNL vs TAP POSITION IN RHEOSTAT MODE FOR
10k (W)
2.0
T = +25°C
1.5
VCC = 2.25V
1.0
0.5
0
VCC = 5.5V
-0.5
0
50 100 150 200 250
TAP POSITION (DECIMAL)
FIGURE 8. INL vs TAP POSITION IN RHEOSTAT MODE FOR
10k (W)
1.60
200
10k
1.20
160
0.80
5.5V
10k
120
0.40
80
0.00
2.25V
50k
-0.40
-40 0 40 80
TEMPERATURE (ºC)
FIGURE 9. END TO END RTOTAL % CHANGE vs
TEMPERATURE
120
40 50k
0
16
66 116 166 216 266
TAP POSITION (DECIMAL)
FIGURE 10. TC FOR VOLTAGE DIVIDER MODE IN ppm
500
400 10k
300
200
100 50k
0
16 66 116 166 216
TAP POSITION (DECIMAL)
FIGURE 11. TC FOR RHEOSTAT MODE IN ppm
11
INPUT
OUTPUT
WIPER AT MID POINT (POSITION 80h)
RTOTAL = 10k
FIGURE 12. FREQUENCY RESPONSE (1MHz)
FN6423.2
August 17, 2015
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet ISL22343.PDF ] | |
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