Renesas X9260TS24Z

Overview

X9260TS24Z from Intersil is a dual-channel, nonvolatile, digitally controlled potentiometer (XDCP™) with 256-tap resolution per channel, SPI interface, and ±5V dual analog supply capability. It provides precise, programmable resistance trimming for gain control, offset adjustment, and reference voltage setting in precision analog circuits operating from -40°C to +85°C.

For engineers reviewing the X9260TS24Z datasheet, X9260TS24Z pinout, X9260TS24Z application, or X9260TS24Z equivalent, this device supports dual independent wiper control, 100-year data retention, 100kΩ end-to-end resistance, power-on recall from DR0, and hardware write protection - critical for industrial sensor conditioning and audio biasing designs requiring long-term calibration stability.

Technical Context

The X9260TS24Z integrates two independent 255-segment resistor arrays with CMOS wiper switches controlled by 8-bit volatile Wiper Counter Registers (WCRs). Each channel features four nonvolatile Data Registers (DR0–DR3), enabling storage of multiple calibrated positions and recall at power-up.

Its SPI interface operates up to 2 MHz with full read/write/transfer command set, including Increment/Decrement for real-time fine-tuning. Analog supplies V+ (2.7V to 5.5V) and V- (-2.7V to -5.5V) define the wiper voltage range, while VCC (2.7V to 5.5V) powers logic - supporting true bipolar operation with <5 µA standby current.

Key Specifications

Pinout & Package

24-lead SOIC (300 mil), RoHS-compliant Pb-free plus anneal package (M24.3 drawing), surface-mount compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5242BRUZ100 and MCP42100-I/P, the X9260TS24Z uniquely delivers dual independent channels with true ±5.5 V analog rail support, hardware write protection, and guaranteed 100-year data retention - making it the only option for industrial bipolar signal conditioning requiring long-term calibration integrity.

Availability

X9260TS24Z is available at Aetrix Electronics and suitable for industrial sensor transmitters, programmable power supplies, audio equipment, and RF bias networks requiring stable component supply with guaranteed long-term calibration retention.

Supply support for X9260TS24Z 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 U.S.-based semiconductor company specializing in high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.

The X9260TS24Z belongs to Intersil's XDCP™ (eXternally Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical potentiometers in industrial, medical, and communications equipment where long-term stability, programmability, and nonvolatile calibration storage are essential.

FAQ

What is the maximum analog voltage range supported by the X9260TS24Z?

The X9260TS24Z supports V+ from +2.7 V to +5.5 V and V− from −2.7 V to −5.5 V, enabling a total analog voltage swing of up to ±5.5 V across its RH/RL/RW terminals. This allows direct interfacing with bipolar op-amps and AC-coupled signal paths without level-shifting circuitry. The X9260TS24Z requires all three supplies (VCC, V+, V−) to stabilize within 1 ms of each other during power-up to ensure reliable operation.

Does the X9260TS24Z support true dual-channel independence?

Yes, the X9260TS24Z implements two physically and electrically isolated 100 kΩ resistor arrays, each with its own Wiper Counter Register (WCR0/WCR1) and four nonvolatile Data Registers (DR0–DR3 per channel). Commands target individual channels via the P0 bit in the instruction byte, and wiper movement, storage, and recall occur independently - critical for applications like stereo audio gain control or dual-sensor offset compensation.

How does the hardware write protect (WP) pin function on the X9260TS24Z?

The WP pin on the X9260TS24Z is an active-low input that disables all nonvolatile write operations to the Data Registers (DR0–DR3) when held LOW. While WP is asserted, instructions like Write Data Register or XFR WCR-to-DR will execute but not commit changes to nonvolatile memory. This prevents accidental overwrites during system debugging or firmware updates. The X9260TS24Z remains fully functional for volatile wiper control and reads regardless of WP state.

What is the wiper response time after issuing a transfer command on the X9260TS24Z?

After issuing an XFR Data Register-to-Wiper Counter Register command, the X9260TS24Z updates the wiper position within 5–10 µs (tWRL). This fast response enables real-time calibration updates in closed-loop systems. In contrast, nonvolatile writes (e.g., Write Data Register) require 5–10 ms (tWR) to complete due to internal high-voltage programming - during which the WIP status bit reads HIGH and the device ignores new commands.

Can the X9260TS24Z be used as a two-terminal variable resistor?

Yes, the X9260TS24Z can operate as a two-terminal variable resistor by connecting either RH or RL to the same node as RW (e.g., short RH0 to RW0), leaving the other terminal open. In this configuration, resistance varies from near-zero (WCR = 0x00 or 0xFF) to full end-to-end value (100 kΩ), with wiper resistance (150 Ω typ) contributing minimal error. This mode is commonly used in LED current-setting or amplifier gain-control applications where three-terminal potentiometer topology is unnecessary.