Renesas X9110TV14Z

Overview

X9110TV14Z from Intersil is a dual-supply, low-power, 1024-tap digitally controlled potentiometer (XDCP™) with SPI interface, 100kΩ end-to-end resistance, ±5V analog supply range (V+/V−), and 2.7V–5.5V system VCC operation. It functions as a programmable three-terminal potentiometer or two-terminal variable resistor for precision analog trimming in voltage regulators, amplifier gain control, and sensor signal conditioning.

For engineers reviewing the X9110TV14Z datasheet, X9110TV14Z pinout, X9110TV14Z application, or X9110TV14Z equivalent, this page delivers verified electrical specs, validated SPI timing, confirmed 14-lead TSSOP package mapping, real-world circuit-level use cases, and two technically documented alternative parts with explicit functional and application differences.

Technical Context

The X9110TV14Z implements a monolithic CMOS resistor array of 1023 segments with 1024 tap points, controlled by a volatile 10-bit Wiper Counter Register (WCR) decoded to select one CMOS switch at a time. Its SPI interface supports four-byte read/write instructions and two-byte transfer commands between WCR and four nonvolatile 10-bit data registers (DR0–DR3).

Power-up automatically loads DR0 into the WCR, enabling deterministic wiper initialization. Analog terminals RH/RL/RW operate across −5V to +5V, independent of 2.7V–5.5V VCC, while standby current remains below 5µA and wiper resistance is 100Ω typical at 5V.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5241BRMZ10 and MCP41010-I/P, the X9110TV14Z uniquely supports true bipolar analog operation (−5V to +5V), stores four independent calibration points nonvolatily, and guarantees deterministic power-up behavior-making it essential for precision industrial and medical analog signal chains requiring long-term stability and fault resilience.

Availability

X9110TV14Z is available at Aetrix Electronics and suitable for voltage regulator trimming, op-amp gain control, and sensor signal conditioning requiring stable component supply, long-term calibration retention, and bipolar analog compatibility.

Supply support for X9110TV14Z 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 industrial, communications, and computing markets, emphasizing precision, reliability, and low-power operation.

The X9110TV14Z belongs to Intersil's XDCP™ family of digitally controlled potentiometers, engineered specifically for replacing mechanical trimmers in precision analog circuits where repeatability, nonvolatile storage, and wide analog voltage range are critical.

FAQ

What is the absolute maximum analog voltage range supported by the X9110TV14Z?

The X9110TV14Z supports V+ up to +5.5V and V− down to −5.5V, with (V+) − (V−) ≤ 12V. RH and RL pins must remain between V− and V+, and RW must not exceed these rails. Exceeding these limits risks permanent damage to the internal CMOS switches. This bipolar range enables direct interfacing with ±5V op-amp stages without external level shifters, a key advantage over unipolar digital potentiometers.

How does the X9110TV14Z handle power-up initialization, and can it be customized?

The X9110TV14Z automatically loads the contents of Data Register 0 (DR0) into the volatile Wiper Counter Register (WCR) at power-up, ensuring a known wiper position without host intervention. DR0 can be pre-programmed during manufacturing or field calibration to store the desired default setting. No external reset sequence or SPI command is required-this behavior is hardwired and guaranteed across temperature and voltage ranges specified in the datasheet.

Does the X9110TV14Z require external pull-up resistors on its SPI lines?

No, the X9110TV14Z does not require external pull-up resistors on SI, SO, SCK, or CS. Its SPI inputs (SI, SCK, CS, HOLD, WP, A0) have CMOS-compatible thresholds with VIH ≥ 0.7×VCC and VIL ≤ 0.3×VCC, and SO is actively driven with push-pull output during reads. Pull-ups may be added only if bus contention or noise immunity is needed in long-trace or multi-drop configurations-but they are not functionally necessary for basic operation per the datasheet specifications.

What is the endurance rating of the nonvolatile data registers in the X9110TV14Z?

The nonvolatile data registers (DR0–DR3) in the X9110TV14Z are rated for 100,000 data changes per bit per register, with 100-year data retention at +25°C. Each write to a register triggers a high-voltage programming cycle lasting up to 10ms, during which the WIP bit is asserted. This endurance specification covers full 10-bit writes and is validated under recommended operating conditions-not accelerated stress testing-making it suitable for infrequent calibration updates in industrial equipment lifecycles.

Can the X9110TV14Z be used in a two-terminal variable resistor configuration, and what are the design constraints?

Yes, the X9110TV14Z can be configured as a two-terminal variable resistor by connecting either RH or RL to RW, leaving the other fixed terminal open or grounded. Maximum wiper current is ±3mA, and power dissipation per potentiometer must not exceed 50mW at +25°C. For stable operation, ensure V+ ≥ RH/RL ≥ V−, and avoid floating RH or RL-these pins must be biased within the analog supply rails to prevent leakage or latch-up in the internal CMOS switches.