Renesas X9110TV14Z-2.7

Overview

X9110TV14Z-2.7 from Intersil is a dual-supply, low-power, 1024-tap digitally controlled potentiometer (XDCP™) with SPI interface, 100kΩ end-to-end resistance, 2.7V to 5.5V system supply range, and ±5V analog rail capability-used for precision gain control in voltage amplifiers and DC bias trimming in sensor signal conditioning circuits.

For engineers reviewing the X9110TV14Z-2.7 datasheet, X9110TV14Z-2.7 pinout, X9110TV14Z-2.7 application, or X9110TV14Z-2.7 equivalent, key selection considerations include its 10-bit resolution, nonvolatile data register storage, power-on recall behavior, wiper resistance at 3V/5V, and TSSOP-14 package compatibility with space-constrained analog front-ends.

Technical Context

The X9110TV14Z-2.7 implements a monolithic CMOS resistor ladder of 1023 segments with CMOS-switched wiper access, controlled via a 10-bit volatile Wiper Counter Register (WCR) and four 10-bit nonvolatile data registers (DR0–DR3). Its SPI interface supports read/write/transfer operations using 4-byte and 2-byte instruction formats with device address (A0) and hardware write protect (WP).

It operates with independent analog supplies (V+, V−) enabling bipolar signal handling up to ±5V across RH/RL terminals, while the digital core runs from VCC (2.7V–5.5V) and VSS. Power-up automatically loads DR0 into the WCR, and standby current remains below 5µA-critical for battery-powered instrumentation and portable sensor nodes.

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 AD5242BRUZ100 and MCP42010-I/P, the X9110TV14Z-2.7 uniquely combines SPI control, ±5V analog rail operation, nonvolatile wiper storage, and power-on recall-making it the only option among the three capable of autonomous, repeatable analog tuning after cold start in bipolar signal environments.

Availability

X9110TV14Z-2.7 is available at Aetrix Electronics and suitable for precision sensor calibration, battery-powered instrumentation, and industrial analog front-end design requiring stable component supply, long-term calibration retention, and low-power operation.

Supply support for X9110TV14Z-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) designs high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.

The X9110 product line delivers digitally controlled potentiometers optimized for replacing mechanical trimmers in industrial, medical, and communications equipment where reliability, programmability, and nonvolatile calibration storage are critical.

FAQ

What is the maximum analog signal voltage range supported by the X9110TV14Z-2.7?

The X9110TV14Z-2.7 supports analog signals from V− to V+, with V− rated from −5.5V to −2.7V and V+ from +2.7V to +5.5V. This allows RH and RL terminals to handle true bipolar signals up to ±5.5V differential, provided V+ ≥ RH/RL ≥ V− at all times. The wiper (RW) follows this range, making the X9110TV14Z-2.7 suitable for op-amp circuits operating on split supplies without external level shifting.

How does the power-on recall function work in the X9110TV14Z-2.7?

On power-up, the X9110TV14Z-2.7 automatically loads the contents of Data Register 0 (DR0) into the volatile Wiper Counter Register (WCR), positioning the wiper accordingly. This occurs after VCC, V+, and V− stabilize within 1ms of each other. No host command is required-DR0 must be pre-programmed with the desired startup wiper value, and the X9110TV14Z-2.7 will restore it unconditionally at every power cycle.

Can the X9110TV14Z-2.7 be used as a two-terminal variable resistor?

Yes, the X9110TV14Z-2.7 can operate as a two-terminal variable resistor by connecting either RH or RL to RW (wiper), leaving the unused terminal open or grounded depending on circuit topology. In this mode, resistance varies from near-zero (WCR = 0 or 1023) to 100kΩ (WCR = midpoint), with wiper resistance contributing series error-typically 100Ω at 5V. This configuration is commonly used in LED current setting or filter Q-adjustment circuits.

What is the write endurance and data retention specification for the X9110TV14Z-2.7?

The X9110TV14Z-2.7 guarantees 100,000 write cycles per bit in each of its four nonvolatile data registers (DR0–DR3), and 100 years of data retention at +25°C. These specifications apply to high-voltage nonvolatile writes triggered by CS rising edge after valid write instructions. Volatile WCR updates (e.g., SPI write to WCR) have unlimited endurance and do not consume nonvolatile write cycles.

Is the X9110TV14Z-2.7 compatible with standard SPI timing requirements?

Yes, the X9110TV14Z-2.7 complies with standard SPI timing: SCK frequency up to 2.5MHz, tSU/tH ≥ 50ns, tWH/tWL ≥ 150ns, and data latched on SCK rising edge (SI) and clocked out on falling edge (SO). It supports full-duplex 4-byte and 2-byte instruction sequences, and features HOLD pin for bus pause-making it interoperable with common MCU SPI peripherals without custom timing adjustments.