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| Quad Digitally Controlled Potentiometers (XDCP™); Low Noise, Low Power, I2CŪ Bus, 128 Taps, Wiper Only |
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| Ordering Information |
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 iBuy direct from Intersil
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 iBuy direct - out of stock
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 Request samples
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 Check distributor inventory
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Available in RoHS/Pb-Free
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Part No. |
Design-In
Status |
Temp. |
Package |
MSL |
Price
US $ |
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| ISL22349UFV14Z |
Active |
Ind |
14 Ld TSSOP |
1 |
2.57 |
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| ISL22349UFV14Z-TK |
Active |
Ind |
14 Ld TSSOP T+R |
1 |
2.57 |
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| ISL22349WFV14Z |
Active |
Ind |
14 Ld TSSOP |
1 |
2.57 |
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| ISL22349WFV14Z-TK |
Active |
Ind |
14 Ld TSSOP T+R |
1 |
2.57 |
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| The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice. |
| MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020 |
| SMD = Standard Microcircuit Drawing |
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 Description |
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The ISL22349 integrates four digitally controlled potentiometers (DCP) 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 wipers are controlled by the user through the I2C bus interface. Each 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 controls the position of the wiper. At power up the device recalls the contents of the two DCP's IVR to the corresponding WRs.
The DCPs can be used as a voltage divider in a wide variety of applications including control, parameter adjustments, AC measurement and signal processing. |
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 Key Features |
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Four potentiometers in one package
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128 resistor taps
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I2C serial interface
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Three address pins, up to eight devices/bus
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Non-volatile storage of wiper position
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Wiper resistance: 70Ω typical
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Shutdown mode
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Shutdown current 6.5μA max
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Power supply: 2.7V to 5.5V
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50kΩ or 10kΩ total resistance
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High reliability
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Endurance: 1,000,000 data changes per bit per register
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Register data retention: 50 years @ T ≤ +55°C
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14 Ld TSSOP
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Pb-free (RoHS compliant)
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| Related Documentation |
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 Application Note(s): |
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 Datasheet(s): |
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 Technical Brief(s): |
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 Technical Homepage: |
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 Parametric Data |
| | # of Devices/ Channels | | 4 | | | # of Taps | | 128 | | | Memory Type | | Non-Volatile | | | Bus Interface Type | | I2C | | | Resistance Options (kΩ) | | 10, 50 | | | VCC Range (V) | | 2.7 to 5.5 | | | VCC (min) (V) | | 2.7 | | | VCC (max) (V) | | 5.5 | | | DCP Dual Supply Range (V) | | N/A | | | DCP Single Supply Range (V) | | 0 to 5.5 | | | Resistance Taper | | Linear | | | Wiper Current (mA) | | 3 | | | Wiper Resistance (Ω) | | 70 | | | Supply Current (μA) | | 1600 | | | Max Operating Temp (°C) | | 125 | | | End-to-End Tempco (ppm/°C) | | 50 | | | Middlepoint Ratiometric Tempco (ppm/°C) | | 4 | | | VL min. terminal voltage (V) | | 0 | | | VH max. terminal voltage (V) | | 5.5 | | | Features | | Voltage Divider - RH connected to Vcc and RL connected to GND | |
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| | ISL22346 | | Quad Digitally Controlled Potentiometers (XDCP™); Low Noise, Low Power I<sup>2</sup>C™ Bus, 128 Taps | | | ISL22446 | | Quad Digitally Controlled Potentiometer (XDCP™); Low Noise, Low Power, SPIŪ Bus, 128 Taps | | | ISL22449 | | Quad Digitally Controlled Potentiometer (XDCP™); Low Noise, Low Power, SPIŪ Bus, 128 Taps, Wiper Only | |
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