ISL90843: Quad Digital Controlled Potentiometers (XDCP™); Low Noise, Low Power, I2C® Bus, 256 Taps
The ISL90843 integrates four digitally controlled potentiometers (XDCP) 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 Wiper Register (WR) that can be directly written to and read by the user. The contents of the WR controls the position of the wiper.
The DCPs can be used as a voltage divider in a wide variety of applications including control, AC measurement, and signal processing.
Key Features
- Four potentiometers in one package
- 256 resistor taps-0.4% resolution
- I2C serial interface
- Two address pins allow up to four devices/bus
- Wiper resistance: 70Ω typical @ 3.3V
- Standby current <5µA max
- Power supply: 2.7V to 5.5V
- 10kΩ or 50kΩ total resistance
- 10 Ld MSOP package
- Pb-free plus anneal product (RoHS compliant)
| Title | Type | Updated | Size | Other Languages |
|---|---|---|---|---|
| AN1173: DC/DC Module Trim with Digital Potentiometers | 22 Apr 2015 | 258 KB | ||
| AN9705: A Theoretical View of Coherent Sampling | 13 Nov 2014 | 25 KB | ||
| AN9675: Coherent and Windowed Sampling with A/D Converters | 13 Nov 2014 | 160 KB | ||
| AN1699: Digital Control Potentiometers Offer Hidden Benefits for Many Designs | 13 Nov 2014 | 129 KB | ||
| AN1425: Get Precision Performance from a Digitally Controlled Potentiometer (DCP) | 13 Nov 2014 | 56 KB | ||
| AN002: Principles of Data Acquisition and Conversion | 13 Nov 2014 | 257 KB |
| Title | Type | Updated | Size | Other Languages |
|---|---|---|---|---|
| ISL90843 Datasheet | 17 Nov 2014 | 1.21 MB |
| Title | Type | Updated | Size | Other Languages |
|---|---|---|---|---|
| DCP Evaluation Board Software v5.2.0 | EXE | 20 Mar 2015 | 2.73 MB |
| Title | Type | Updated | Size | Other Languages |
|---|---|---|---|---|
| TB458: Converting a Fixed PWM to an Adjustable PWM | 19 Nov 2014 | 147 KB |
| Title | Type | Updated | Size | Other Languages |
|---|---|---|---|---|
| Digital Potentiometer (DCP) Evaluation USB Kit User Guide | 12 May 2015 | 330 KB |
| Part Number | Package Type | Weight(g) | Pins | MSL Rating | Peak Temp (°C) | RoHS Status |
|---|---|---|---|---|---|---|
| ISL90843UIU1027Z | 10 Ld MSOP | 0.026 | 10 | 2 | 260 | RoHS |
| ISL90843UIU1027Z-TK | 10 Ld MSOP T+R | 0.026 | 10 | 2 | 260 | RoHS |
| ISL90843WIU1027Z | 10 Ld MSOP | 0.026 | 10 | 2 | 260 | RoHS |
| ISL90843WIU1027Z-TK | 10 Ld MSOP T+R | 0.026 | 10 | 2 | 260 | RoHS |
- ISL90843 Datasheet 17 Nov 2014
- AN1173: DC/DC Module Trim with Digital Potentiometers 22 Apr 2015
- AN9705: A Theoretical View of Coherent Sampling 13 Nov 2014
- AN9675: Coherent and Windowed Sampling with A/D Converters 13 Nov 2014
- AN1699: Digital Control Potentiometers Offer Hidden Benefits for Many Designs 13 Nov 2014
- AN1425: Get Precision Performance from a Digitally Controlled Potentiometer (DCP) 13 Nov 2014
- AN002: Principles of Data Acquisition and Conversion 13 Nov 2014
- DCP Evaluation Board Software v5.2.0 20 Mar 2015
- TB458: Converting a Fixed PWM to an Adjustable PWM 19 Nov 2014
- Digital Potentiometer (DCP) Evaluation USB Kit User Guide 12 May 2015
