Renesas X9116WS8Z-2.7T1

Overview

X9116WS8Z-2.7T1 from Intersil is a solid-state, nonvolatile digitally controlled potentiometer (XDCP™) designed for precision trimming in analog signal paths. It provides 16 discrete wiper positions across a 10kΩ end-to-end resistance, operates from 2.7V to 5.5V, draws ≤50µA active current and ≤1µA standby current, and uses a 3-wire up/down serial interface for mechanical trimmer replacement in power supply feedback loops.

For engineers reviewing the X9116WS8Z-2.7T1 datasheet, X9116WS8Z-2.7T1 pinout, X9116WS8Z-2.7T1 application, or X9116WS8Z-2.7T1 equivalent, this device delivers verified nonvolatile wiper position retention, linear taper accuracy (±1 MI absolute linearity), low-noise operation (–120 dBV/√Hz), and RoHS-compliant 8-lead SOIC packaging with Pb-free anneal finish.

Technical Context

The X9116WS8Z-2.7T1 implements a 15-segment resistor array with CMOS "make-before-break" switches controlled by a 4-bit up/down counter. Wiper positioning is determined solely by serial INC and U/D inputs under CS enable, with nonvolatile storage triggered by CS↑ while INC is HIGH.

Its architecture supports true zero-power retention: wiper state persists through power cycles via EEPROM, and the device enters <1µA standby mode automatically after store completion. Terminal voltage range is rail-to-rail (0V to VCC), and wiper resistance varies from 200Ω at 5V to 400–1000Ω at 2.7V.

Key Specifications

Pinout & Package

Package: 8-lead SOIC (M8.15), RoHS-compliant Pb-free plus anneal finish, moisture sensitivity level (MSL) 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digitally controlled potentiometer applications.

Compared with AD5170BRMZ-10 and MCP41010-I/P, the X9116WS8Z-2.7T1 uniquely combines ultra-low standby current, true nonvolatile retention, and minimal 3-wire control - making it optimal for self-contained, low-power trimming where EEPROM persistence and GPIO efficiency are prioritized over resolution or protocol flexibility.

Availability

X9116WS8Z-2.7T1 is available at Aetrix Electronics and suitable for power supply feedback trimming, DC-DC converter output adjustment, audio signal level control, and industrial sensor offset calibration requiring stable component supply, long-term calibration integrity, and RoHS-compliant manufacturing.

Supply support for X9116WS8Z-2.7T1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Intersil Corporation (now part of Renesas Electronics) is a U.S.-based analog and mixed-signal semiconductor company focused on high-performance power management, precision analog, and interface solutions.

The X9116 product line was engineered specifically for replacing mechanical potentiometers in trimming applications - emphasizing nonvolatile memory, low power, rail-to-rail operation, and robustness in industrial and commercial environments.

FAQ

What is the supply voltage range for the X9116WS8Z-2.7T1?

The X9116WS8Z-2.7T1 operates from 2.7V to 5.5V, as confirmed in the Absolute Maximum Ratings and Ordering Information tables. This extended low-voltage capability enables use in single-cell Li-ion, coin-cell, and wide-input LDO applications where traditional 5V-only DCPs fail. The "-2.7" suffix explicitly denotes this voltage range, and the device maintains full functionality-including nonvolatile store and 16-tap resolution-across the entire span.

Does the X9116WS8Z-2.7T1 retain its wiper position after power cycling?

Yes, the X9116WS8Z-2.7T1 retains its last stored wiper position across power cycles using on-chip EEPROM. Data retention is rated for 100 years, and endurance is specified at 100,000 write cycles. The wiper automatically recalls the stored value at power-up, eliminating need for boot-time initialization - a key advantage over volatile alternatives like the MCP41010-I/P.

How many wiper positions does the X9116WS8Z-2.7T1 support, and what is its resolution?

The X9116WS8Z-2.7T1 provides 16 discrete wiper positions (0–15), corresponding to 15 equal resistor segments. Its resolution is 6.25% per step (1/15 of RTOTAL), with absolute linearity specified at ±1 MI (Minimum Increment = RTOTAL/15 ≈ 667Ω). This is validated in the Potentiometer Specifications table and supports precision trimming where coarse adjustment suffices.

What is the wiper resistance of the X9116WS8Z-2.7T1, and how does it vary with supply voltage?

Wiper resistance (RW) for the X9116WS8Z-2.7T1 is 200–400Ω at VCC = 5V and 400–1000Ω at VCC = 2.7V, per the Potentiometer Specifications table. This voltage-dependent variation arises from CMOS switch R_ON characteristics and directly affects loading error in high-impedance circuits - designers must account for it when calculating effective divider ratios.

Is the X9116WS8Z-2.7T1 RoHS compliant, and what packaging does it use?

Yes, the X9116WS8Z-2.7T1 is RoHS compliant and uses an 8-lead SOIC package (JEDEC MS-012-AA, pkg drawing M8.15) with Pb-free plus anneal finish. This construction meets IPC/JEDEC J-STD-020 MSL1 requirements and supports standard reflow soldering - confirmed in the Ordering Information table and Pb-free note on page 2 of the datasheet.