Renesas X9250TS24Z

Overview

X9250TS24Z from Intersil is a quad digitally controlled potentiometer (XDCP™) with 256-tap resolution per channel, SPI serial interface, dual analog supply support (V+ = +2.7V to +5.5V, V– = –2.7V to –5.5V), and 100kΩ end-to-end resistance. It integrates nonvolatile wiper position storage, four independent data registers per pot, and operates across 0°C to +70°C in a Pb-free 24-lead SOIC package - used for precision gain/offset trimming in programmable instrumentation amplifiers.

For engineers reviewing the X9250TS24Z datasheet, X9250TS24Z pinout, X9250TS24Z application, or X9250TS24Z equivalent, key selection criteria include its dual-supply ±2.7V analog rail compatibility, 40Ω typical wiper resistance at 5V, <5µA standby current, SPI command set for wiper increment/decrement and register transfer, and RoHS-compliant Pb-free packaging with M24.3 footprint.

Technical Context

The X9250TS24Z implements four independent 255-segment resistor arrays, each controlled by an 8-bit volatile Wiper Counter Register (WCR) decoded to select one of 256 tap points. Each array supports three-terminal potentiometer or two-terminal variable resistor configurations via VH/RH, VL/RL, and VW/RW pins.

Nonvolatile storage uses four 8-bit Data Registers (DR0–DR3) per pot, with write cycles requiring CS high-to-low transition and completing in ≤10ms. The device supports global and individual register transfers, read status (WIP bit), and hardware write protection via the WP pin - all synchronized to SPI clock (SCK) with rising-edge input and falling-edge output timing.

Key Specifications

Pinout & Package

Package: 24-lead SOIC (300 mil), Pb-free, M24.3 footprint, body dimensions 15.4mm × 7.5mm × 2.3mm.

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/P, the X9250TS24Z uniquely supports true bipolar analog operation via independent V+/V– rails and retains calibration indefinitely in nonvolatile registers - making it irreplaceable in field-deployed test equipment requiring zero-maintenance precision.

Availability

X9250TS24Z is available at Aetrix Electronics and suitable for programmable instrumentation, industrial sensor interfaces, and medical device calibration systems requiring stable component supply across extended product lifecycles.

Supply support for X9250TS24Z 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 ICs for precision signal conditioning, power management, and interface applications.

The X9250TS24Z belongs to Intersil's XDCP™ family, engineered specifically for replacing mechanical potentiometers in systems demanding programmable, nonvolatile, and low-noise analog adjustment - especially in harsh-environment industrial and test equipment.

FAQ

What is the operating temperature range for the X9250TS24Z?

The X9250TS24Z is rated for 0°C to +70°C operation, as confirmed in the Ordering Information table (X9250TS24Z-2.7 variant). This commercial-grade range suits indoor instrumentation, lab equipment, and consumer-grade test fixtures where ambient thermal stress is controlled. The X9250TS24I-2.7 variant extends to –40°C to +85°C for industrial deployment.

Does the X9250TS24Z support true bipolar analog operation?

Yes, the X9250TS24Z supports true bipolar analog operation via dedicated V+ (+2.7V to +5.5V) and V– (–2.7V to –5.5V) supply pins. This allows VH/RH terminals to reference V+, VL/RL to reference V–, and wiper outputs to swing fully between rails - enabling use in dual-supply op-amp circuits like offset nulling and hysteresis control without level-shifting.

How many nonvolatile data registers does the X9250TS24Z provide per potentiometer?

The X9250TS24Z provides four independent 8-bit nonvolatile Data Registers (DR0 through DR3) for each of its four potentiometers. These registers retain wiper positions for up to 100 years and support direct SPI read/write, global transfer to Wiper Counter Registers, and power-up recall from DR0 - enabling multi-point calibration storage.

What is the maximum SPI clock frequency supported by the X9250TS24Z?

The X9250TS24Z supports a maximum SPI clock frequency of 2.0 MHz, as specified in the AC Timing section (fSCK parameter). This allows fast wiper updates (e.g., <10µs response after load instruction) and efficient register transfers while maintaining robust noise immunity in electrically noisy industrial environments.

Is hardware write protection available on the X9250TS24Z?

Yes, the X9250TS24Z includes a dedicated Hardware Write Protect (WP) pin. When WP is held LOW, all nonvolatile writes to the Data Registers (DR0–DR3) are disabled - preventing accidental overwrites of factory-calibrated settings during system operation or firmware updates. This feature is critical for field-reliable medical and test equipment.