CAT5259: Digital Potentiometer (POT), 256-Taps, NV, Quad, I2C
The CAT5259 is four digital POTs integrated with control logic and 16 bytes of NVRAM memory. Each digital POT consists of a series of resistive elements connected between two externally accessible end points. The tap points between each resistive element are connected to the wiper outputs with CMOS switches. A separate 8-bit control register (WCR) independently controls the wiper tap switches for each digital POT. Associated with each wiper control register are four 8-bit non-volatile memory data registers (DR) used for storing up to four wiper settings. Writing to the wiper control register or any of the non-volatile data registers is via a 2-wire serial bus. On power-up, the contents of the first data register (DR0) for each of the four potentiometers is automatically loaded into its respective wiper control registers.The CAT5259 can be used as a potentiometer or as a two terminal, variable resistor. It is intended for circuit level or system level adjustments in a wide variety of applications. It is available in the 0°C to 70°C commercial and -40°C to 85°C industrial operating temperature ranges.
特性- Four linear taper digital potentiometers
- 256 resistor taps per potentiometer
- End to end resistance 50 kΩ or 100 kΩ
- Potentiometer control and memory access via 2-wire interface (I²C like)
- Low wiper resistance, typically 100 Ω
- Nonvolatile memory storage for up to four wiper settings for each potentiometer
- Automatic recall of saved wiper settings at power up
- 2.5 to 6.0 volt operation
- Standby current less than 1.0 µA
- 1,000,000 nonvolatile WRITE cycles
- 100 year nonvolatile memory data retention
- Industrial temperature range
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应用- Audio Equipment
- Industrial Controls
| 终端产品- Automobiles
- Industrial Equipment
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数据表 (1)
封装图纸 (2)
产品订购型号
| 产品 | 状况 | Compliance | 封装 | MSL* | 容器 | 预算价格 (1千个数量的单价） |
|---|
| CAT5259WI-00-T1 | Last Shipments | Pb-free
Halide free | SOIC-24W | 751BK | 3 | Tape and Reel | 1000 | |
| CAT5259WI-50-T1 | Last Shipments | Pb-free
Halide free | SOIC-24W | 751BK | 3 | Tape and Reel | 1000 | |
| CAT5259WI00 | Last Shipments | Pb-free
Halide free | SOIC-24W | 751BK | 3 | Tube | 31 | |
| CAT5259WI50 | Last Shipments | Pb-free
Halide free | SOIC-24W | 751BK | 3 | Tube | 31 | |
| CAT5259YI-00-T2 | Active | Pb-free
Halide free | TSSOP-24 | 948AR | 1 | Tape and Reel | 2000 | $4.8665 |
| CAT5259YI-50-T2 | Active | Pb-free
Halide free | TSSOP-24 | 948AR | 1 | Tape and Reel | 2000 | $4.8665 |
| CAT5259YI00 | Active | Pb-free
Halide free | TSSOP-24 | 948AR | 1 | Tube | 62 | $33.3325 |
| CAT5259YI50 | Active | Pb-free
Halide free | TSSOP-24 | 948AR | 1 | Tube | 62 | $33.3325 |
订购产品技术参数
| Product | # of Pots | # of Taps | Type | Control Interface | Resistance Typ (kΩ) | VH Max (V) | Wiper Position Memory | VDD Max (V) |
|---|
| CAT5259YI-00-T2 | 4 | 256 | Potentiometer | I2C | 100 | VCC | Yes | 6 |
| CAT5259YI-50-T2 | 4 | 256 | Potentiometer | I2C | 50 | VCC | Yes | 6 |
| CAT5259YI00 | 4 | 256 | Potentiometer | I2C | 100 | VCC | Yes | 6 |
| CAT5259YI50 | 4 | 256 | Potentiometer | I2C | 50 | VCC | Yes | 6 |
