The ISL23445TFRZ-T7A is a quad digitally controlled potentiometer (DCP) featuring four independent potentiometers per package, each with 256 resistor taps. It offers total resistance options of 10kOc, 50kOc, or 100kOc and operates with a low voltage supply range of 1.7V to 5.5V for analog power and 1.2V to 5.5V for the SPI bus. The device utilizes an SPI serial interface, allowing for daisy chaining of multiple DCPs without the need for additional level translation for low bus supply voltages. The ISL23445TFRZ-T7A has a typical wiper resistance of 70Oc at 3.3V and features a power-on preset to mid-scale (128 tap position). It includes a shutdown mode that reduces power consumption by disconnecting the DCP resistor from the circuit, making it suitable for battery-operated applications. The device is rated for an extended industrial temperature range of -40¬8C to +125¬8C and is available in a 20-lead QFN package that is RoHS compliant. This product is recommended for applications such as power supply margining, trimming sensor circuits, and gain adjustment in battery-powered instruments.
IC DGT POT 100KOHM 256TAP 20QFN
Digital Potentiometer 100k Ohm 4 Circuit 256 Taps SPI Interface 20-QFN (3x4)
| Lingto Electronic Limited | Quarktwin Technology Ltd. | |
|---|---|---|
| Product Category | Potentiometers, Rheostats, and Trimmers | Resistors |
| Product Number | ISL23445TFRZ-T7A | ISL23445TFRZ-T7A |
| Product Name | Data Acquisition - Digital Potentiometers | Digital Potentiometers |
| Mounting / Packaging | Surface Mount Technology (SMT / SMD) | Surface Mount Technology (SMT / SMD) |
| Potentiometer Type | Standard Potentiometer; Digital Potentiometer | |
| Resistance Range | 100000 ohms | |
| Temperature Coefficient | 45 ±ppm/°C |
