Renesas X9250UV24I

Overview

X9250UV24I from Intersil is a quad digitally controlled potentiometer (XDCP™) with 256-tap resolution per channel, SPI serial interface, dual ±2.7V to ±5.5V analog supplies (V+/V−), and 24-lead TSSOP package. It integrates four independent 100kΩ potentiometers, each with nonvolatile data registers (DR0–DR3), wiper counter register (WCR), and <5µA standby current - used for precision gain/offset trimming in multi-channel instrumentation amplifiers.

For engineers reviewing the X9250UV24I datasheet, X9250UV24I pinout, X9250UV24I application, or X9250UV24I equivalent, key selection criteria include its 24-lead TSSOP footprint, -40°C to +85°C industrial temperature range, hardware write-protect (WP) pin, HOLD pin for SPI pause/resume, and support for dual-supply operation with V+ and V− rails.

Technical Context

The X9250UV24I implements four independent resistor arrays, each with 255 discrete segments and CMOS-switched wiper terminals (VW0–VW3). Wiper position is controlled via an 8-bit volatile Wiper Counter Register (WCR), loaded at power-up from DR0 or updated via SPI instructions including Write WCR, XFR DR→WCR, and Increment/Decrement.

It supports full SPI mode (CPOL=0, CPHA=0) with CS-active-low selection, SCK rising-edge sampling on SI and falling-edge output on SO. The device uses separate analog supplies (V+, V−) and digital supply (VCC = 2.7V–5.5V), enabling bipolar signal conditioning while maintaining low-noise performance (−120 dBV noise) and 0.4% resolution.

Key Specifications

Pinout & Package

Package: 24-lead Thin Shrink Small Outline Package (TSSOP), 4.4mm body width (MDP0044), RoHS-compliant, industrial temperature range (−40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5204BRUZ10 and MCP42050-I/SL, the X9250UV24I uniquely supports dual analog supplies (V+/V−), hardware write protection, and 256-tap resolution - making it the only option for precision bipolar instrumentation requiring field-robust calibration retention.

Availability

X9250UV24I is available at Aetrix Electronics and suitable for industrial sensor conditioning, multi-channel data acquisition, and programmable analog front-end designs requiring stable component supply, long-term calibration integrity, and RoHS-compliant packaging.

Supply support for X9250UV24I 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 high-performance analog and mixed-signal ICs for industrial, aerospace, and communications markets.

The X9250UV24I belongs to Intersil's XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in precision analog systems requiring nonvolatile calibration, low noise, and industrial-grade reliability.

FAQ

What is the operating temperature range for the X9250UV24I?

The X9250UV24I 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 X9250UV24I is explicitly listed with "−40 to +85" under TEMP. RANGE. Its TSSOP package (MDP0044) and internal design meet this specification without derating.

Does the X9250UV24I support true bipolar analog operation?

Yes, the X9250UV24I supports true bipolar analog operation via dedicated V+ and V− pins, rated from −5.5V to −2.7V and +2.7V to +5.5V respectively. This allows direct connection to ±3V, ±5V, or ±4.5V analog signal paths - unlike single-supply DCPs - and is verified in the RECOMMENDED OPERATING CONDITIONS table (page 11) and ABSOLUTE MAXIMUM RATINGS (page 11).

How many nonvolatile data registers does each potentiometer in the X9250UV24I have?

Each of the four potentiometers in the X9250UV24I has four independent 8-bit nonvolatile Data Registers (DR0 through DR3), as stated in the FEATURES section (page 1) and detailed in the DEVICE DESCRIPTION (page 4). These registers retain data for 100 years and withstand 100,000 write cycles per bit.

What is the purpose of the HOLD pin on the X9250UV24I?

The HOLD pin on the X9250UV24I allows pausing an ongoing SPI transaction without resetting the command sequence. When brought LOW while SCK is LOW, it suspends communication; bringing it HIGH resumes from the same point. This is documented in the PIN DESCRIPTIONS section (page 3) and illustrated in Figure 7 (page 7) of FN8165 Rev.3.00.

Can the X9250UV24I be used as a two-terminal variable resistor?

Yes, the X9250UV24I can be configured as a two-terminal variable resistor by connecting either VH/RH or VL/RL to a fixed potential and using VW/RW as the adjustable terminal. The datasheet explicitly states this capability in the DESCRIPTION section (page 1) and shows two-terminal use cases in Application Circuits (pages 17–18), including variable current and inverting amplifier configurations.