Renesas X9119TV14IZ-2.7

Overview

X9119TV14IZ-2.7 from Intersil is a 1024-tap, low-power, digitally controlled potentiometer (XDCP™) with 2-wire serial interface, 100kΩ end-to-end resistance, ±20% tolerance, and operation from 2.7V to 5.5V. It functions as a 3-terminal potentiometer or 2-terminal variable resistor for precision analog trimming in voltage regulators, amplifier gain control, and sensor signal conditioning.

For engineers reviewing the X9119TV14IZ-2.7 datasheet, X9119TV14IZ-2.7 pinout, X9119TV14IZ-2.7 application, or X9119TV14IZ-2.7 equivalent, key selection criteria include its 10-bit resolution, nonvolatile data register storage, power-on recall from DR0, wiper resistance of 40Ω (typ. at 5V), and TSSOP-14 package compatibility with industrial temperature range (–40°C to +85°C).

Technical Context

The X9119TV14IZ-2.7 implements a monolithic CMOS resistor array of 1023 segments with CMOS-switched wiper access controlled by a volatile 10-bit Wiper Counter Register (WCR). Its 2-wire interface supports read/write/transfer operations to four 10-bit nonvolatile data registers (DR0–DR3) and enables direct wiper positioning or register-based recall.

Power-up behavior loads DR0 into the WCR, ensuring deterministic startup wiper position. Hardware write protection (WP pin) disables nonvolatile writes, while SCL/SDA timing complies with standard I²C-compatible 400kHz operation and includes ACK polling for write-cycle completion detection.

Key Specifications

Pinout & Package

Package: 14-lead TSSOP (4.4mm width), RoHS-compliant, M14.173 footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5170BRMZ-100 and MCP45HV51-103E/MS, the X9119TV14IZ-2.7 delivers superior 10-bit resolution, integrated power-on recall, and hardware write protection-critical for unattended industrial calibrations requiring deterministic startup and secure parameter storage.

Availability

X9119TV14IZ-2.7 is available at Aetrix Electronics and suitable for voltage regulator trimming, sensor signal conditioning, audio volume control, and precision amplifier calibration requiring stable component supply across industrial temperature ranges.

Supply support for X9119TV14IZ-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 X9119 product line delivers digitally controlled potentiometers optimized for replacing mechanical trimpots in industrial, automotive, and communications systems where reliability, nonvolatile storage, and I²C configurability are essential.

FAQ

What is the operating temperature range for the X9119TV14IZ-2.7?

The X9119TV14IZ-2.7 is rated for industrial operation from –40°C to +85°C. This range is explicitly specified in the Ordering Information table for the "X9119TV14IZ-2.7" variant and confirmed in the Operating Conditions section of FN8162 Rev 5.00. It supports deployment in harsh environments including factory automation, automotive body electronics, and outdoor infrastructure equipment where thermal stability is critical.

Does the X9119TV14IZ-2.7 support true I²C communication?

Yes, the X9119TV14IZ-2.7 implements a fully compatible 2-wire interface meeting I²C timing requirements: it accepts standard START/STOP conditions, supports 400kHz clock (tCYC = 2500ns), provides ACK responses, and uses open-drain SDA/SCL with external pull-ups. While not branded "I²C" in marketing, its electrical and protocol behavior-including ACK polling and address matching-is functionally identical to standard I²C slave devices.

How does power-on recall work in the X9119TV14IZ-2.7?

On power-up, the X9119TV14IZ-2.7 automatically loads the contents of Data Register 0 (DR0) into the volatile Wiper Counter Register (WCR), establishing the initial wiper position. This behavior is guaranteed per the datasheet and occurs regardless of prior WCR state. DR0 must be pre-programmed with the desired startup value; no host intervention is needed, making it ideal for fail-safe analog configurations.

Can the X9119TV14IZ-2.7 be used as a 2-terminal variable resistor?

Yes, the X9119TV14IZ-2.7 can operate as a 2-terminal variable resistor by connecting either RH or RL to circuit ground and using RW as the adjustable terminal. The datasheet explicitly states this configuration in the Applications section and Figure 14 ("Two-Terminal Variable Resistor; Variable Current"). End-to-end resistance remains 100kΩ, and wiper resistance (40Ω typ.) directly impacts series insertion loss.

What is the maximum wiper current rating for the X9119TV14IZ-2.7?

The absolute maximum wiper current rating for the X9119TV14IZ-2.7 is ±3mA, as specified in the Analog Specifications table on page 10 of FN8162 Rev 5.00. Exceeding this limit risks permanent damage to the internal CMOS switches. For safe operation in voltage divider mode, ensure the total current through RH–RW–RL path remains within this bound under worst-case VCC and tap position conditions.