Renesas X9110TV14ZT1

Overview

X9110TV14ZT1 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 14-lead TSSOP package. It functions as a programmable three-terminal potentiometer or two-terminal variable resistor for precision DC biasing, gain control, and offset trimming in analog signal chains.

For engineers reviewing the X9110TV14ZT1 datasheet, X9110TV14ZT1 pinout, X9110TV14ZT1 application, or X9110TV14ZT1 equivalent, key selection criteria include its 10-bit resolution, nonvolatile data register storage (DR0–DR3), power-on recall from DR0, wiper resistance ≤100Ω at 5V, and dual analog supply capability supporting rail-to-rail wiper operation within −5V to +5V.

Technical Context

The X9110TV14ZT1 implements a 1023-element resistor ladder with CMOS switch-controlled wiper positioning via a volatile 10-bit Wiper Counter Register (WCR). Its SPI interface supports four-byte read/write operations for WCR and four 10-bit nonvolatile data registers (DR0–DR3), plus two-byte transfer instructions between registers.

It operates with independent analog supplies (V+ and V−) defining the wiper's voltage compliance range, while system supply VCC powers logic (2.7V–5.5V). Power-up automatically loads DR0 into WCR, enabling deterministic startup wiper position without host initialization.

Key Specifications

Pinout & Package

Package: 14-lead TSSOP (RoHS-compliant, M14.173 footprint, θJA = 90°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5241BRMZ10 and MCP41HV51-103, the X9110TV14ZT1 uniquely combines SPI interface, dual analog supply (±5V), nonvolatile multi-position storage, and 100kΩ resistance-making it optimal for precision bipolar signal conditioning where deterministic startup and calibration persistence are required.

Availability

X9110TV14ZT1 is available at Aetrix Electronics and suitable for audio volume control, RF amplifier biasing, instrumentation amplifier offset trimming, and programmable reference generation requiring stable component supply and long-term calibration integrity.

Supply support for X9110TV14ZT1 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) designs high-performance analog and mixed-signal ICs for precision power management, signal conditioning, and interface applications.

The X9110 product line delivers digitally controlled potentiometers optimized for replacing mechanical trimmers in industrial, test equipment, and communications systems requiring nonvolatile settings and robust analog performance.

FAQ

What is the absolute maximum voltage rating on the V+ and V− pins of the X9110TV14ZT1?

The X9110TV14ZT1 supports V+ up to +10V and V− down to −10V relative to VSS, with a maximum differential (V+ − V−) of 12V. However, for reliable operation within specifications, V+ must be maintained between +4.5V and +5.5V, and V− between −5.5V and −4.5V - as defined in the recommended operating conditions for the X9110TV14ZT1.

Does the X9110TV14ZT1 retain its wiper position after power cycling?

Yes - the X9110TV14ZT1 automatically loads the contents of nonvolatile Data Register 0 (DR0) into the volatile Wiper Counter Register (WCR) at power-up. This ensures the X9110TV14ZT1 resumes operation at a known, user-programmed wiper position without requiring host initialization.

Can the X9110TV14ZT1 be used with a 3.3V microcontroller SPI interface?

Yes - the X9110TV14ZT1 accepts VCC from 2.7V to 5.5V and features TTL-compatible inputs (VIH ≥ 0.7×VCC, VIL ≤ 0.3×VCC). When powered at 3.3V, its SI, SCK, CS, and HOLD pins operate reliably with standard 3.3V logic levels, and SO outputs are 3.3V-compatible.

How many nonvolatile write cycles does each data register of the X9110TV14ZT1 support?

Each of the four nonvolatile data registers (DR0–DR3) in the X9110TV14ZT1 supports a minimum of 100,000 write cycles per bit, with guaranteed 100-year data retention under normal operating conditions - ensuring long-term reliability in calibration-critical applications.

What is the wiper resistance specification for the X9110TV14ZT1 at 3V VCC?

At VCC = 3V, the X9110TV14ZT1 wiper resistance is specified at 150Ω typical and 500Ω maximum (with IW = ±3mA). This higher value compared to the 100Ω max at 5V reflects CMOS switch R_ON dependence on supply voltage - a key design consideration for low-voltage precision divider accuracy.