CAT5126: Digital Potentiometer (POT), One-Time, 32-Tap
The CAT5126 is a digital POT. The wiper position is controlled with a simple 2-wire digital interface. This digital POT is unique in that it has an optional one-time programmable feature that either sets the wiper's position upon power-on to a user-defined value, or the wiper can be set and the interface also disabled to prevent further adjustment.The CAT5126 has an end-to-end resistance of 10 kΩ, 50 kΩ, and 100 kΩ. All CAT5126 devices have 32 wiper positions and operate from a single 2.5 V to 5.5 V supply.Each device is guaranteed over the industrial temperature range of -40°C to +85°C.
Features- Wiper position stored after one-time nonvolatile programming
- User-defined Power-On wiper position
- 32 tap positions
- Wiper position programmed through simple 2-wire serial interface
- Low 0.35 µA (typ) static supply current
- 2.5 V to 5.5 V single-supply operation
- 10 kΩ, 50 kΩ, and 100 kΩ end-to-end resistances
- 50 ppm/°C end-to-end temperature coefficient and 5 ppm/°C ratiometric temperature coefficient
|
Applications- Mechanical potentiometer replacement
- Products using one-time factory calibration
- Contrast, brightness, volume controls
- Programmable analog functions
| End Products |
Data Sheets (1)
Package Drawings (2)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| CAT5126VP2I10GT3 | Active | Pb-free
Halide free | TDFN-8 | 511AK | 1 | Tape and Reel | 3000 | $1.1733 |
| CAT5126ZI-00-GT3 | Consult Sales Office | Pb-free
Halide free | MSOP-8 | 846AD | 1 | Tape and Reel | 3000 | |
| CAT5126ZI-10-G | Active | Pb-free
Halide free | MSOP-8 | 846AD | 1 | Tube | 96 | $33.3325 |
| CAT5126ZI-10-GT3 | Active | Pb-free
Halide free | MSOP-8 | 846AD | 1 | Tape and Reel | 3000 | $1.1733 |
| CAT5126ZI-50-GT3 | Consult Sales Office | Pb-free
Halide free | MSOP-8 | 846AD | 1 | Tape and Reel | 3000 | |
Specifications
| Product | # of Pots | # of Taps | Type | Control Interface | Resistance Typ (kΩ) | VH Max (V) | Wiper Position Memory | VDD Max (V) |
|---|
| CAT5126VP2I10GT3 | 1 | 32 | Potentiometer | Up/Down | 10 | VCC | OTP | 5.5 |
| CAT5126ZI-10-G | 1 | 32 | Potentiometer | Up/Down | 10 | VCC | OTP | 5.5 |
| CAT5126ZI-10-GT3 | 1 | 32 | Potentiometer | Up/Down | 10 | VCC | OTP | 5.5 |
