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Renesas X9250TS24IT1
- Part No.:
- X9250TS24IT1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
X9250TS24IT1.pdf
- Description:
- IC DGT POT 100KOHM 256TAP 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,373
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Product details
Overview
X9250TS24IT1 from Intersil is a quad digitally controlled potentiometer (XDCP™) with SPI interface, 256-tap resolution per channel, 100kΩ end-to-end resistance, ±20% tolerance, and dual analog supplies (V+ = +4.5V to +5.5V, V− = −5.5V to −4.5V). It integrates four independent nonvolatile wiper-position-controlled resistor arrays for precision analog signal conditioning in programmable gain stages and offset calibration circuits.
For engineers reviewing the X9250TS24IT1 datasheet, X9250TS24IT1 pinout, X9250TS24IT1 application, or X9250TS24IT1 equivalent, key selection criteria include its 24-pin SOIC package, SPI-compatible serial control with HOLD/CS/WR protection, 4× nonvolatile data registers per pot, <5µA standby current, and operation across −40°C to +85°C industrial temperature range.
Technical Context
The X9250TS24IT1 implements four independent 255-segment resistor arrays with CMOS-switched wiper terminals (VW0–VW3), 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 instructions including direct write, register transfer, and increment/decrement modes.
It supports dual-supply analog operation (V+, V−) independent of digital supply (VCC = 5V ±10%), enabling true bipolar signal handling. The device uses hardware write protection (WP pin), device addressing (A0/A1), and HOLD functionality to manage multi-device SPI bus arbitration without sequence reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resistor count per pot | 256 taps - enables 0.4% resolution for precise analog voltage division or current setting |
| End-to-end resistance | 100kΩ ±20% - defines full-scale impedance range for gain/attenuation networks |
| Wiper resistance | 250Ω typical - contributes minimal series error in low-impedance feedback paths |
| Nonvolatile endurance | 100,000 writes/register - supports field calibration cycles over product lifetime |
| Standby current | <5µA total - enables always-on biasing in low-power sensor front-ends |
| SPI clock frequency | 2MHz max - allows fast reconfiguration during system initialization or dynamic adjustment |
| Analog supply range | V+ = +4.5V to +5.5V, V− = −5.5V to −4.5V - supports rail-to-rail bipolar signal swing up to ±5.5V |
Pinout & Package
Package: 24-lead SOIC (300 mil), RoHS-compliant, Pb-free plus anneal finish (M24.3 drawing).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable for SPI communication; places SO in high-Z when deasserted |
| SCK | Serial Clock | Input clock for synchronous data transfer; rising edge latches SI, falling edge clocks SO |
| SI / SO | Serial Input / Output | Half-duplex SPI data line; three-state outputs allow shared bus wiring |
| A0, A1 | Device Address | Set LSBs of 8-bit slave address; support up to four X9250 devices on one SPI bus |
| WP | Hardware Write Protect | Low disables nonvolatile writes to DR0–DR3; prevents accidental calibration loss |
| HOLD | Serial Communication Pause | Pauses ongoing SPI transaction without resetting state; requires SCK low to assert |
| VH0–VH3 / VL0–VL3 | Potentiometer High/Low Terminals | Fixed ends of each resistor array; VHx referenced to V+, VLx referenced to V− |
| VW0–VW3 | Wiper Outputs | Switch-selected tap points; output voltage scales linearly between VHx and VLx |
| V+, V− | Analog Supplies | Independent dual rails powering resistor arrays; enable true bipolar operation |
| VCC, VSS | Digital Supply / Ground | 5V ±10% logic supply; decoupling required near pins to suppress digital noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Four independent XDCP channels | Enables simultaneous gain, offset, threshold, and filter tuning in single IC footprint |
| Nonvolatile wiper storage (DR0) | Automatically restores last calibrated setting at power-up without host intervention |
| Global transfer instructions | Atomic update of all four pots' wipers from same DR register-critical for matched channel tracking |
| Increment/decrement mode | Real-time fine-tuning via SPI clock edges-no host CPU overhead for manual adjustment loops |
| Wiper response time | 10µs after instruction completion-supports closed-loop analog control with <100kHz update rate |
Applications
| Programmable Gain Amplifier | DC Offset Calibration |
|---|---|
|
Use Scenario: Adjusting feedback network ratio in instrumentation amplifier to select gain from 1× to 100×. IC Role / Device Role / Timing Role: X9250TS24IT1 acts as digitally set two-terminal variable resistor in Rf path; wiper position determines gain with 0.4% step resolution. Use Value: Eliminates manual trimmer replacement; enables factory/software calibration and runtime gain switching without analog switches or relays. |
Use Scenario: Nulling input offset voltage in precision op-amp circuits using adjustable voltage divider into summing node. IC Role / Device Role / Timing Role: X9250TS24IT1 operates as three-terminal potentiometer; VH/VL tied to rails, VW injects correction voltage. Use Value: Achieves sub-mV offset correction stability over temperature; nonvolatile DR0 retains calibration across power cycles. |
| Multi-Channel Sensor Biasing | Bipolar Signal Attenuation |
|
Use Scenario: Setting individual bias currents for four photodiode transimpedance amplifiers in optical sensing module. IC Role / Device Role / Timing Role: X9250TS24IT1 configured as two-terminal resistor between V− and op-amp input; controls Ibias per channel. Use Value: Enables per-channel sensitivity matching and dynamic range optimization; 100kΩ range accommodates 10nA–100µA bias currents. |
Use Scenario: Scaling ±5V analog sensor outputs to ±2.5V ADC input range using inverting attenuator topology. IC Role / Device Role / Timing Role: X9250TS24IT1 used as grounded-wiper potentiometer; VH/VL connected to ±5V rails, VW feeds inverting input. Use Value: Supports true bipolar attenuation with no DC shift; dual V+/V− supplies ensure linear operation across full ±5V span. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5242BRUZ100 | 256-tap, dual-channel, I²C interface, 100kΩ, single 2.7–5.5V supply | Lacks bipolar analog capability; no V+/V− rails; limited to unipolar signal paths | Select when I²C bus integration and lower pin count outweigh need for bipolar operation |
| MCP42050-I/P | 256-tap, dual-channel, SPI interface, 50kΩ, single 2.7–5.5V supply, no HOLD pin | Lower end-to-end resistance; no hardware write protect or HOLD; not rated for −40°C to +85°C | Choose for cost-sensitive consumer designs where industrial temp range and robustness are not required |
Compared with AD5242BRUZ100 and MCP42050-I/P, the X9250TS24IT1 uniquely delivers quad-channel control, true bipolar analog operation via separate V+/V−, hardware write protection, and industrial temperature rating-making it the only option for precision, field-calibratable, multi-rail analog systems.
Availability
X9250TS24IT1 is available at Aetrix Electronics and suitable for programmable gain amplifiers, DC offset calibration circuits, multi-channel sensor biasing, and bipolar signal attenuation requiring stable component supply across industrial temperature ranges and long-term calibration retention.
Supply support for X9250TS24IT1 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 power management, precision analog, and interface applications.
The X9250 series was designed for digitally programmable analog signal conditioning in industrial, test equipment, and medical instrumentation-emphasizing nonvolatile calibration, bipolar operation, and SPI configurability.
FAQ
What is the operating temperature range for the X9250TS24IT1?
The X9250TS24IT1 is rated for industrial operation from −40°C to +85°C. This range is confirmed in the Ordering Information table (Page 2) and Recommended Operating Conditions (Page 11) of the FN8165 datasheet. The "I" suffix in X9250TS24IT1 explicitly denotes the industrial temperature grade, ensuring reliable performance in demanding environments such as factory automation and outdoor instrumentation.
Does the X9250TS24IT1 support true bipolar analog operation?
Yes, the X9250TS24IT1 supports true bipolar analog operation via dedicated V+ and V− supply pins. Per the datasheet (Page 11, POTENTIOMETER CHARACTERISTICS), V+ operates from +4.5V to +5.5V and V− from −5.5V to −4.5V, enabling resistor arrays to handle signals spanning ±5.5V. This is distinct from single-supply digital potentiometers and is essential for applications like bipolar attenuators and AC-coupled signal chains.
How many nonvolatile data registers does each potentiometer in the X9250TS24IT1 have?
Each of the four potentiometers in the X9250TS24IT1 has four independent 8-bit nonvolatile Data Registers (DR0–DR3), as specified in the DESCRIPTION (Page 1) and DEVICE DESCRIPTION (Page 4). DR0 is automatically loaded into the Wiper Counter Register at power-up, while DR1–DR3 provide additional storage for alternate calibration sets or system parameters-enabling multi-point calibration or configuration profiles.
What is the maximum SPI clock frequency supported by the X9250TS24IT1?
The X9250TS24IT1 supports a maximum SPI clock frequency of 2.0 MHz, as stated in the AC TIMING section (Page 13, fSCK parameter). This timing is validated under standard load conditions (SO open, other inputs at VSS) and ensures reliable communication for both read and write operations-including nonvolatile writes that require internal high-voltage programming cycles.
Is the X9250TS24IT1 RoHS compliant?
Yes, the X9250TS24IT1 is RoHS compliant. The datasheet explicitly states "Pb-free plus anneal available (RoHS compliant)" in the FEATURES section (Page 1) and confirms the use of "100% matte tin plate termination finish" meeting IPC/JEDEC J-STD-020 reflow requirements in the Ordering Information footnote (Page 2). The "T1" suffix indicates tape-and-reel packaging, consistent with RoHS-compliant manufacturing.
X9250TS24IT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 4
- Number of Taps:
- 256
- Resistance (Ohms):
- 100k
- Interface:
- SPI
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- ±5V
- Features:
- Selectable Address
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-SOIC
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 150
X9250TS24IT1 FAQ
1.How can I place an order for X9250TS24IT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9250TS24IT1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for X9250TS24IT1 reliable?
The price and inventory of X9250TS24IT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9250TS24IT1 is usually 5 days.
3.What payment methods are accepted for X9250TS24IT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9250TS24IT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9250TS24IT1?
X9250TS24IT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9250TS24IT1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for X9250TS24IT1?
For technical support, including X9250TS24IT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9250TS24IT1 requirements.
6.How does Aetrix verify that X9250TS24IT1 is sourced from the original manufacturer or authorized distributors?
All X9250TS24IT1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that X9250TS24IT1 meets industry standards.
7.What is the process for return or replacement of X9250TS24IT1?
All X9250TS24IT1 units undergo pre-shipment inspection (PSI). If there is an issue with X9250TS24IT1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The X9250TS24IT1 part is unused and in its original packaging.
Return procedure for X9250TS24IT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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