Renesas X9110TV14-2.7

Overview

X9110TV14-2.7 from Intersil is a dual-supply, low-power, 1024-tap digitally controlled potentiometer (XDCP™) with SPI interface, 100kΩ end-to-end resistance, ±5V analog voltage range (V+/V−), and 2.7V to 5.5V system supply (VCC). It implements a volatile wiper counter register (WCR) and four nonvolatile data registers (DR0–DR3) for storing wiper positions, enabling programmable gain control in amplifier circuits and DC bias adjustment in sensor signal conditioning.

For engineers reviewing the X9110TV14-2.7 datasheet, X9110TV14-2.7 pinout, X9110TV14-2.7 application, or X9110TV14-2.7 equivalent, key selection considerations include its 10-bit resolution, power-on recall from DR0, <5µA standby current, 14-lead TSSOP package, and compatibility with SPI-based microcontroller systems requiring precise analog trimming without mechanical wear.

Technical Context

The X9110TV14-2.7 integrates a monolithic CMOS resistor array of 1023 segments with CMOS switch-controlled wiper positioning. Its SPI interface supports four-byte read/write operations for WCR and DR registers, plus two-byte transfer instructions between them, all synchronized to SCK rising/falling edges with CS enable and HOLD pause capability.

It operates with independent analog supplies (V+ and V−) defining the wiper voltage range, while VCC powers digital logic. Power-up automatically loads DR0 into the volatile WCR, and nonvolatile writes to DR registers require hardware write protect (WP) deactivation and complete CS high-to-low transitions, with internal high-voltage cycles taking up to 10ms.

Key Specifications

Pinout & Package

Package: 14-lead TSSOP (RoHS-compliant, M14.173 drawing), 5.0mm × 4.4mm × 1.2mm body, 0.65mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5242BRUZ10 and MCP42010-I/P, the X9110TV14-2.7 uniquely delivers 10-bit resolution, ±5V analog operation, and four nonvolatile registers in a single SPI device-making it optimal for precision, bipolar, self-initializing analog trimming where reliability and configurability are critical.

Availability

X9110TV14-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, RF power amplifier biasing, audio volume control, and instrumentation amplifier gain setting requiring stable component supply and long-term parameter retention.

Supply support for X9110TV14-2.7 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 (now part of Renesas Electronics) is a semiconductor manufacturer specializing in precision analog, power management, and interface ICs for industrial, communications, and computing markets.

The X9110 product line delivers digitally controlled potentiometers optimized for high-reliability, low-power, and wide-voltage-range analog trimming-designed specifically for replacing mechanical pots in automated test equipment, medical devices, and telecom infrastructure.

FAQ

What is the operating voltage range for the analog terminals (V+, V−) of the X9110TV14-2.7?

The X9110TV14-2.7 supports V+ from +2.7V to +5.5V and V− from −5.5V to −2.7V, enabling true bipolar operation across a 12V total analog range. This allows the device to function as a precision trim element in AC-coupled circuits, RF attenuators, and industrial sensor interfaces where signals swing above and below ground. The RH, RL, and RW terminals must remain within this V+ to V− window at all times.

Does the X9110TV14-2.7 retain its wiper position after power cycling?

Yes-the X9110TV14-2.7 automatically loads the contents of nonvolatile Data Register 0 (DR0) into the volatile Wiper Counter Register (WCR) on power-up. This power-on recall ensures repeatable default behavior without host intervention. Users can pre-program DR0 during manufacturing or field calibration, and the 100-year data retention guarantees stability across product lifetime.

How many nonvolatile registers does the X9110TV14-2.7 have, and what are their functions?

The X9110TV14-2.7 includes four 10-bit nonvolatile data registers (DR0–DR3), each capable of storing one wiper position (0–1023). These registers support independent calibration points-for example, DR0 for power-on default, DR1 for cold-temperature trim, DR2 for hot-temperature trim, and DR3 for factory test mode. Transfers between DRs and the WCR occur via dedicated SPI instructions with guaranteed 100,000-cycle endurance.

Can the X9110TV14-2.7 be used in a two-terminal variable resistor configuration?

Yes-the X9110TV14-2.7 supports both three-terminal potentiometer (RH–RW–RL) and two-terminal variable resistor (e.g., RW–RH or RW–RL) modes. In two-terminal use, it replaces mechanical rheostats in current-setting or gain-control applications. Wiper resistance remains ≤500Ω (at 3V), minimizing insertion loss, and the device maintains full 10-bit resolution and nonvolatile storage regardless of configuration.

What is the maximum SPI clock frequency supported by the X9110TV14-2.7?

The X9110TV14-2.7 supports SPI clock frequencies up to 2.5MHz, with minimum high/low times of 150ns each. At this rate, full four-byte instructions (e.g., Read WCR) complete in under 2µs, and wiper position updates settle within 10µs after instruction completion. This timing enables rapid reconfiguration in closed-loop systems such as auto-calibrating power supplies or adaptive filter networks.