Renesas X9250TS24-2.7

Overview

X9250TS24-2.7 from Intersil is a quad digitally controlled potentiometer (XDCP™) with 256-tap resolution per channel, SPI serial interface, and dual analog supply capability (V+ = +2.7V to +5.5V, V– = –2.7V to –5.5V). It integrates four independent 100kΩ resistor arrays, each with nonvolatile wiper position storage, 40Ω typical wiper resistance at 5V, and <5µA total standby current - used for precision voltage divider calibration in industrial sensor signal conditioning circuits.

For engineers reviewing the X9250TS24-2.7 datasheet, X9250TS24-2.7 pinout, X9250TS24-2.7 application, or X9250TS24-2.7 equivalent, key selection considerations include its 2.7V–5.5V VCC range, ±2.7V to ±5.5V analog rail support, 24-pin SOIC package, SPI-compatible timing (2MHz max), and hardware write-protect (WP) functionality for robust configuration retention.

Technical Context

The X9250TS24-2.7 implements four independent 255-segment resistor arrays with CMOS switch-controlled wipers, each driven by an 8-bit volatile Wiper Counter Register (WCR) and backed by four 8-bit nonvolatile Data Registers (DR0–DR3). Power-up automatically loads DR0 into the WCR for deterministic initialization.

It supports full SPI protocol compliance including CS-active selection, rising-edge SI data capture, falling-edge SO data output, HOLD pause capability, and device addressing via A0/A1 pins - enabling up to four devices on one bus. Nonvolatile writes require CS high-to-low transition and complete within 10ms.

Key Specifications

Pinout & Package

Package: 24-lead SOIC (300 mil), M24.3 footprint, RoHS-compliant Pb-free option available.

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 X9250TS24-2.7 uniquely delivers quad-channel control, true bipolar analog operation, and integrated nonvolatile memory - making it the only choice for high-reliability, multi-channel, rail-to-rail analog calibration in industrial and instrumentation systems.

Availability

X9250TS24-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supply feedback, audio channel balancing, and precision instrumentation requiring stable component supply and long-term parameter retention.

Supply support for X9250TS24-2.7 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 company specializing in high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.

The X9250TS24-2.7 belongs to Intersil's XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimpots in automated calibration, factory programming, and field-adjustable analog systems.

FAQ

What is the operating temperature range for the X9250TS24-2.7?

The X9250TS24-2.7 is rated for commercial temperature operation from 0°C to +70°C, as specified in the ordering information table. This distinguishes it from industrial-grade variants like X9250TS24I-2.7 (–40°C to +85°C) and confirms its suitability for indoor, non-extreme-environment applications such as consumer test equipment and office automation systems. The X9250TS24-2.7 maintains full electrical specifications across this range.

Does the X9250TS24-2.7 support true bipolar analog operation?

Yes, the X9250TS24-2.7 supports true bipolar analog operation via separate V+ (+2.7V to +5.5V) and V– (–2.7V to –5.5V) supply pins. This allows wiper voltages to swing fully between the analog rails - critical for AC-coupled signal paths, op-amp offset nulling, and precision instrumentation where signals cross 0V. Unlike unipolar DCPs, the X9250TS24-2.7 does not require level-shifting circuitry to handle negative potentials.

How many nonvolatile registers does the X9250TS24-2.7 provide per potentiometer?

The X9250TS24-2.7 provides four 8-bit nonvolatile Data Registers (DR0 through DR3) for each of its four potentiometers - totaling 16 independent nonvolatile storage locations. DR0 is automatically loaded into the Wiper Counter Register (WCR) at power-up, while DR1–DR3 support user-defined backup settings, system parameters, or calibration coefficients. Each register endurance is rated for 100,000 write cycles.

Can the X9250TS24-2.7 be used with a shared SPI bus alongside other devices?

Yes, the X9250TS24-2.24-2.7 supports multi-drop SPI configuration using its A0 and A1 address inputs, allowing up to four devices on the same bus. Each device responds only when its 2-bit address matches the least-significant bits of the 8-bit slave ID (0101xxBB format). This eliminates need for individual chip-select lines beyond the dedicated CS pin, simplifying routing in dense PCB layouts with multiple XDCPs.

What is the maximum SPI clock frequency supported by the X9250TS24-2.7?

The X9250TS24-2.7 supports a maximum SPI clock frequency of 2.0 MHz, as confirmed in the AC timing specifications. This allows fast wiper updates (e.g., <10µs response after write instruction) and efficient bulk register transfers - sufficient for real-time calibration loops in microcontroller-based systems without requiring high-speed peripherals. Timing margins remain compliant down to 250ns minimum clock cycle time.