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What is ISL22414?

This electronic component, produced by the manufacturer "Intersil", performs the same function as "Dual Digitally Controlled Potentiometer".


ISL22414 Datasheet PDF - Intersil

Part Number ISL22414
Description Dual Digitally Controlled Potentiometer
Manufacturers Intersil 
Logo Intersil Logo 


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ISL22424
Dual Digitally Controlled Potentiometer (XDCP™)
Data Sheet
September 9, 2015
FN6425.1
Low Noise, Low Power, SPI® Bus,
256 Taps
The ISL22424 integrates two digitally controlled
potentiometers (DCP), control logic and non-volatile memory
on a monolithic CMOS integrated circuit.
The digitally controlled potentiometers are implemented with
a combination of resistor elements and CMOS switches. The
position of the wiper is controlled by the user through the SPI
serial interface. Each 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
wiper. At power-up the device recalls the contents of the
DCP’s IVRi to the corresponding WRi.
The ISL22424 also has 13 General Purpose non-volatile
registers that can be used as storage of lookup table for
multiple wiper position or any other valuable information.
The ISL22424 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 potentiometer or
as two-terminal variable resistor in a wide variety of
applications including control, parameter adjustments, and
signal processing.
Features
• Two potentiometers in one package
• 256 resistor taps
• SPI serial interface with write/read capability
• Daisy Chain Configuration
• Shutdown mode
• Non-volatile EEPROM storage of wiper position
• 13 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: 70typical @ 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 50kor 100ktotal resistance
• Extended industrial temperature range: -40ºC to +125ºC
• 14 Ld TSSOP or 16 Ld QFN
• Pb-free plus anneal product (RoHS compliant)
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, 2015. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

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ISL22414 equivalent
ISL22424
Absolute Maximum Ratings
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Voltage at any Digital Interface Pin
with Respect to GND . . . . . . . . . . . . . . . . . . . . -0.3V to VCC +0.3
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -6V to 0.3V
Voltage at any DCP pin with Respect to GND . . . . . . . . . . V- to VCC
IW (10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±6mA
Latchup . . . . . . . . . . . . . . . . . . . . . . . . . Class II, Level A @ +125°C
ESD
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5kV
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .350V
Thermal Information
Thermal Resistance (Typical, Note 3)
JA (°C/W)
14 Lead TSSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
16 Lead QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
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
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.25V to 5.5V
V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -2.25V to -5.5V
Max Wiper Current Iw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±3.0mA
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
3. JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Analog Specifications Over recommended operating conditions unless otherwise stated.
SYMBOL
PARAMETER
TEST CONDITIONS
TYP
MIN (NOTE 4) MAX
UNIT
RTOTAL RHi to RLi resistance
RHi to RLi resistance tolerance
W option
U option
T option
10 k
50 k
100 k
-20 +20 %
End-to-End Temperature Coefficient W option
±85 ppm/°C
U, T option
±45 ppm/°C
VRH, VRL
RW
DCP terminal voltage
Wiper resistance
CH/CL/CW Potentiometer capacitance
(Note 20)
VRHi and VRLi to GND
V- VCC
RH - floating, VRL = V-, force Iw current to the
wiper, IW = (VCC - VRL)/RTOTAL
70 250
See Macro Model below.
10/10/25
V
pF
ILkgDCP Leakage on DCP pins
Voltage at pin from V- to VCC
VOLTAGE DIVIDER MODE (V- @ RLi; VCC @ RHi; measured at RWi, unloaded)
INL Integral non-linearity
(Note 9)
W option
0.1
-1.5 ±0.5
1 µA
1.5 LSB
(Note 5)
DNL
Differential non-linearity
(Note 8) Monotonic over all tap positions
U, T option
W option
-1.0 ±0.2
-1.0 ±0.4
1.0 LSB
(Note 5)
1.0 LSB
(Note 5)
U, T option
-0.5 ±0.15 0.5
LSB
(Note 5)
ZSerror
(Note 6)
FSerror
(Note 7)
Zero-scale error
Full-scale error
W option
U, T option
W option
U, T option
0 1 5 LSB
0 0.5 2 (Note 5)
-5 -1 0 LSB
-2 -1 0 (Note 5)
VMATCH DCP to DCP matching
(Note 10)
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 5)
TCV Ratiometric temperature coefficient
(Note 11, 20)
DCP register set to 80 hex
±4 ppm/°C
5 FN6425.1
September 9, 2015


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