TPL0202 Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
TPL0202 is a dual-channel 8-bit digital potentiometer from Texas Instruments with 256 wiper taps, SPI interface, and non-volatile memory for wiper position retention across power cycles. Packaged in a compact QFN, it suits programmable gain, calibration, and analog adjustment applications in embedded systems.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 17
- Lifecycle
- ACTIVE
- Datasheet
- TPL0202 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-channel design with 256 wiper taps per channel (8-bit resolution)
- Non-volatile memory retains wiper positions across power cycles
- SPI interface for high-speed microcontroller integration
- Wide operating voltage range for flexible analog circuit supply
- Compact QFN package minimizes PCB footprint
- Independent channel control for simultaneous dual-parameter adjustment
Applications
The TPL0202 is used in systems requiring digitally adjustable analog parameters such as dual-channel programmable gain amplifiers, LCD bias voltage tuning, and multi-axis sensor offset calibration where independent 8-bit control of two potentiometers over a single SPI bus simplifies firmware. Its non-volatile memory ensures that factory-calibrated wiper positions are preserved through power interruptions, making it suitable for industrial instruments and automotive control modules with power-cycle requirements. The compact QFN package allows integration into dense analog front-end circuits where two independent 256-position potentiometers must occupy minimal board space.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPL0202:
Digital Potentiometer, 1 Func, 10000ohm, 3-wire Serial Control Interface, 256 Positions, PQCC16
Frequently Asked Questions
How many wiper positions does each channel of the TPL0202 provide, and what resolution does this give?
Each channel of the TPL0202 provides 256 wiper taps, corresponding to 8-bit resolution. For a 10 kΩ end-to-end resistance, each step represents approximately 39 Ω of adjustment, enabling fine analog tuning of gain, offset, or bias levels in programmable amplifier and sensor calibration circuits controlled via SPI.
What happens to TPL0202 wiper positions when power is removed from the circuit?
The TPL0202 stores wiper positions in on-chip non-volatile memory, so both channel settings are retained after power is removed and restored automatically at the next power-on. This eliminates the need for a microcontroller to re-write calibration values on every boot cycle, reducing startup latency in industrial instruments and embedded control modules.
How does TPL0202's dual-channel SPI architecture compare to two separate single-channel I2C potentiometers?
The TPL0202 controls both channels over a single SPI bus with one chip-select line, reducing wiring and firmware complexity compared to addressing two separate I2C devices at different addresses. SPI also supports faster clock rates (typically up to 10 MHz) versus standard I2C at 400 kHz, allowing quicker wiper updates in real-time control loops that adjust 256-tap positions at high iteration rates.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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