Renesas X9250UV24IZ-2.7

Overview

X9250UV24IZ-2.7 from Intersil is a quad digitally controlled potentiometer (XDCP™) with 256-tap resolution per channel, SPI serial interface, and dual analog supply support (V+ = +2.7V to +5.5V, V– = –2.7V to –5.5V). It integrates four independent 100kΩ resistor arrays in a single 24-lead TSSOP package, enabling precision voltage divider or variable resistor functions in low-noise analog signal conditioning circuits.

For engineers reviewing the X9250UV24IZ-2.7 datasheet, X9250UV24IZ-2.7 pinout, X9250UV24IZ-2.7 application, or X9250UV24IZ-2.7 equivalent, this device supports nonvolatile wiper position storage, hardware write protection (WP), HOLD-mode serial pause, and operates across –40°C to +85°C with <5µA standby current - critical for battery-powered instrumentation and industrial control systems requiring stable calibration retention.

Technical Context

The X9250UV24IZ-2.7 implements four independent 255-segment resistor arrays, each controlled by an 8-bit volatile Wiper Counter Register (WCR) and backed by four 8-bit nonvolatile Data Registers (DR0–DR3). Wiper position is updated via SPI commands including direct WCR write, DR-to-WCR transfer, or real-time increment/decrement using SI-driven clocked steps.

Its dual-supply architecture (V+, V–) enables true bipolar operation, supporting AC-coupled signal paths and rail-to-rail analog voltage adjustment. The device uses CMOS switches to select wiper taps, achieving 0.4% resolution and ±1 MI absolute linearity, with wiper resistance of 150Ω typical at ±1mA - optimized for low-distortion gain/offset tuning in op-amp feedback networks.

Key Specifications

Pinout & Package

Package: 24-lead TSSOP (4.4mm width), RoHS-compliant Pb-free plus anneal finish (MDP0044 drawing).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5242BRUZ100 and MCP42050-I/SL, the X9250UV24IZ-2.7 uniquely delivers quad-channel control with true bipolar analog capability and nonvolatile storage in one TSSOP package - reducing component count, PCB area, and firmware complexity in multi-parameter calibration systems.

Availability

X9250UV24IZ-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, medical instrument offset adjustment, programmable power supply feedback, and audio signal level control requiring stable component supply across extended temperature ranges and long lifecycle commitments.

Supply support for X9250UV24IZ-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, medical, and communications markets.

The X9250 series was designed specifically for digitally replacing mechanical potentiometers in high-reliability analog systems - emphasizing nonvolatile memory, low noise, and robust bipolar operation for calibration-critical applications.

FAQ

What is the operating temperature range for the X9250UV24IZ-2.7?

The X9250UV24IZ-2.7 is rated for industrial operation from –40°C to +85°C. This range is confirmed in the Ordering Information table on page 2 of FN8165 Rev.3.00, where "X9250UV24IZ-2.7" is explicitly listed with "–40 to +85" under TEMP. RANGE. Its TSSOP package (MDP0044) and internal design support reliable performance across this full industrial envelope.

Does the X9250UV24IZ-2.7 support true bipolar analog operation?

Yes, the X9250UV24IZ-2.7 supports true bipolar analog operation via separate V+ and V– supply pins, rated from –5.5V to –2.7V and +2.7V to +5.5V respectively. This enables the resistor arrays to handle signals swinging both above and below ground - a capability verified in the "Power supplies" bullet on page 1 and the "Vv+ / Vv–" specifications on page 11 of FN8165 Rev.3.00.

How many nonvolatile data registers does each potentiometer in the X9250UV24IZ-2.7 have?

Each of the four potentiometers in the X9250UV24IZ-2.7 has four independent 8-bit nonvolatile Data Registers (DR0–DR3), as stated in the FEATURES section on page 1 and detailed in the DEVICE DESCRIPTION on page 4 of FN8165 Rev.3.00. These registers store wiper positions or system parameters with 100-year retention and 100,000-cycle endurance.

What is the maximum SPI clock frequency supported by the X9250UV24IZ-2.7?

The X9250UV24IZ-2.7 supports a maximum SPI clock frequency of 2.0 MHz, as specified in the AC TIMING table on page 13 of FN8165 Rev.3.00 under parameter "fSCK". This timing is validated across the full operating voltage and temperature range, ensuring deterministic communication with standard microcontroller SPI peripherals.

Is hardware write protection available on the X9250UV24IZ-2.7?

Yes, the X9250UV24IZ-2.7 includes a dedicated Hardware Write Protect (WP) pin. When WP is driven LOW, nonvolatile writes to the Data Registers are disabled - preventing accidental corruption of calibrated settings. This function is documented in the PIN DESCRIPTIONS section on page 3 and reinforced in Figure 1 and Table 1 of FN8165 Rev.3.00.