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Renesas X9400WS24IZ-2.7
- Part No.:
- X9400WS24IZ-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
X9400WS24IZ-2.7.pdf
- Description:
- IC DGTL POT 10KOHM 64TAP 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,316
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Product details
Overview
X9400WS24IZ-2.7 from Intersil is a quad digitally controlled potentiometer (XDCP™) with 64-tap resolution per channel, SPI serial interface, 10 kΩ end-to-end resistance, ±20% tolerance, and 2.7V to 5.5V system supply range. It integrates four independent nonvolatile potentiometers for precision analog trimming in programmable gain amplifiers, DC-DC converter feedback networks, and sensor calibration circuits.
For engineers reviewing the X9400WS24IZ-2.7 datasheet, X9400WS24IZ-2.7 pinout, X9400WS24IZ-2.7 application, or X9400WS24IZ-2.7 equivalent, key selection criteria include its 24-pin SOIC package, -40°C to +85°C industrial temperature rating, 100-year data retention, 100,000-cycle endurance, and dual-supply analog operation (±5.5 V).
Technical Context
The X9400WS24IZ-2.7 implements four independent 63-segment resistor arrays with CMOS wiper switches controlled by 6-bit volatile Wiper Counter Registers (WCR). Each potentiometer features four 6-bit nonvolatile Data Registers (DR0–DR3), enabling storage of multiple wiper positions and power-on recall from DR0.
Its SPI interface supports read/write/WCR transfer/increment-decrement operations with hardware write protection (WP), device addressing (A0/A1), and HOLD functionality for serial bus pause/resume. Analog terminals (VH/VL/VW) operate over ±5.5 V independent of digital VCC, supporting true bipolar signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Number of Potentiometers | Four independent channels on single die - enables multi-loop calibration without discrete components. |
| Resolution | 64 taps (6-bit) - provides 1.56% step resolution for fine analog adjustment. |
| End-to-End Resistance | 10 kΩ ±20% - matches standard op-amp feedback network values and ensures predictable gain scaling. |
| VCC Supply Range | 2.7 V to 5.5 V - compatible with 3.3 V and 5 V logic systems and battery-powered designs. |
| Analog Voltage Range | V+ = +2.7 V to +5.5 V, V− = −5.5 V to −2.7 V - supports true bipolar signal routing across full ±5 V range. |
| Wiper Resistance | 40 Ω typical at 5 V - minimizes loading error in high-impedance voltage divider configurations. |
| Nonvolatile Endurance | 100,000 data changes per bit per register - ensures long-term reliability in field-updatable calibration systems. |
| Data Retention | 100 years - guarantees factory-set or user-trimmed parameters persist over product lifetime. |
Pinout & Package
Package: 24-lead SOIC (300 mil), RoHS-compliant Pb-free plus anneal finish, M24.3 package drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Digital supply input | 2.7–5.5 V logic power; powers SPI interface and control logic. |
| VSS | Digital ground | Reference for all digital I/O pins (CS, SCK, SI, SO, A0, A1, HOLD, WP). |
| V+, V− | Analog supply rails | Independent ±2.7 V to ±5.5 V analog section supply - enables bipolar operation without level-shifting. |
| CS | Chip select | Active-low enable; places device in active mode when LOW, forces SO to high-Z when HIGH. |
| SCK | SPI clock input | Drives internal timing; rising edge latches SI data, falling edge clocks SO data. |
| SI | SPI data input | Serial command/data input; accepts ID byte, instruction byte, and payload bytes. |
| SO | SPI data output | Push-pull output; returns read data during instruction cycles; tri-state when CS HIGH. |
| A0, A1 | Device address inputs | Select LSBs of 8-bit slave address; allow up to four X9400 devices on same SPI bus. |
| HOLD | Serial bus pause control | Pauses ongoing SPI transaction when pulled LOW while SCK is LOW; resumes on HIGH. |
| WP | Hardware write protect | Prevents nonvolatile writes to Data Registers when LOW - safeguards calibrated settings. |
| VH0–VH3 / VL0–VL3 | Potentiometer terminal inputs | Fixed ends of each 63-segment resistor array - connect as RH/RL in three-terminal pot or RL-only in two-terminal rheostat. |
| VW0–VW3 | Wiper outputs | Switch-selected tap points - deliver adjustable voltage/current; wiper resistance ≤100 Ω at 3 V. |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent XDCPs | Four fully isolated 64-tap potentiometers eliminate inter-channel crosstalk in multi-sensor systems. |
| Nonvolatile Data Registers | Four 6-bit registers per channel store distinct calibration points - supports factory trim, field update, and user preference modes. |
| Power-on wiper recall | Automatically loads DR0 into WCR at startup - ensures known initial state without host initialization delay. |
| Low standby current | <1 µA max - extends battery life in portable instrumentation and IoT endpoint devices. |
| SPI-compatible interface | Fully compliant with standard SPI timing (2 MHz max); SO/SI can be wired together to reduce MCU pin count. |
| Bipolar analog operation | V+/V− support ±5.5 V swing - enables direct interfacing with op-amps, ADCs, and DACs in AC-coupled or rail-to-rail signal paths. |
Applications
| Programmable Gain Amplifier | DC-DC Converter Feedback |
|---|---|
Use Scenario: Adjusting closed-loop gain in instrumentation amplifiers for variable sensor sensitivity. IC Role / Device Role / Timing Role: Four-channel XDCP acts as digitally programmable feedback resistor network controlling amplifier gain via SPI commands. Use Value: Enables remote recalibration without hardware change; 64-step resolution allows <1.6% gain increments for precise dynamic range matching. | Use Scenario: Setting output voltage of buck/boost converters in adaptive power management systems. IC Role / Device Role / Timing Role: Replaces mechanical trimmer in feedback divider string; VH/VL tied to VOUT/GND, VW feeds error amplifier reference input. Use Value: Supports firmware-based output voltage reconfiguration; nonvolatile storage retains setting across power cycles. |
| Sensor Offset Calibration | Audio Channel Balance Control |
Use Scenario: Nulling thermal drift or manufacturing offset in bridge-based pressure/temperature sensors. IC Role / Device Role / Timing Role: One potentiometer channel injects adjustable DC bias into sensor signal path to cancel offset voltage. Use Value: 10 kΩ resistance and low 40 Ω wiper resistance minimize injection noise and loading effects on high-impedance sensor outputs. | Use Scenario: Independent left/right channel volume or balance adjustment in professional audio mixers. IC Role / Device Role / Timing Role: Two potentiometers serve as digitally controlled attenuators in stereo line-level signal paths. Use Value: Simultaneous SPI updates ensure matched attenuation steps across channels; 100-year data retention preserves user presets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5204BRUZ10 | Quad 256-tap, I²C interface, 10 kΩ, 2.7–5.5 V; no bipolar analog supply support. | Lacks V+/V− rails - limited to unipolar signal paths; requires external level-shifting for ±5 V operation. | Choose AD5204BRUZ10 for higher resolution and I²C compatibility where analog range is 0–5 V only. |
| MCP42050-I/P | Quad 256-tap, SPI interface, 50 kΩ, 2.7–5.5 V; wiper resistance 120 Ω typical; no V+/V− separation. | Single-supply analog section (VDD referenced) - cannot handle negative voltages directly. | Choose MCP42050-I/P when higher end-to-end resistance and lower cost are prioritized over bipolar operation. |
Compared with AD5204BRUZ10 and MCP42050-I/P, X9400WS24IZ-2.7 uniquely supports true bipolar analog signals via dedicated V+/V− rails, making it the only option among the three for direct ±5 V signal conditioning without external circuitry.
Availability
X9400WS24IZ-2.7 is available at Aetrix Electronics and suitable for programmable gain amplifiers, DC-DC converter feedback networks, sensor calibration systems, and audio channel balancing requiring stable component supply and long-term parameter retention.
Supply support for X9400WS24IZ-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 Corporation is a precision analog and power management semiconductor company, now part of Renesas Electronics, with expertise in high-reliability industrial and infrastructure solutions.
The X9400 product line delivers digitally controlled potentiometers optimized for industrial calibration, power supply trimming, and sensor signal conditioning where nonvolatile storage, bipolar operation, and SPI simplicity are critical.
FAQ
What is the operating temperature range for X9400WS24IZ-2.7?
The X9400WS24IZ-2.7 is rated for industrial operation from -40°C to +85°C, validated per manufacturer specifications and qualified for use in harsh-environment embedded systems including motor drives and industrial PLC modules. This range is confirmed in the Ordering Information table and Recommended Operating Conditions section of the FN8189 datasheet.
Does X9400WS24IZ-2.7 support true bipolar analog signals?
Yes, X9400WS24IZ-2.7 supports true bipolar analog operation via dedicated V+ and V− pins, rated from -5.5 V to -2.7 V and +2.7 V to +5.5 V respectively. This allows direct connection to op-amps and sensors operating across ±5 V without external level-shifting circuitry - a capability not found in most competing digital potentiometers.
How many nonvolatile memory locations does X9400WS24IZ-2.7 provide per potentiometer?
X9400WS24IZ-2.7 provides four 6-bit nonvolatile Data Registers (DR0–DR3) per potentiometer channel, enabling storage of up to four distinct wiper positions per channel. These registers retain data for 100 years and withstand 100,000 write cycles, as specified in the Endurance and Data Retention section of the datasheet.
Can X9400WS24IZ-2.7 be used with a 3.3 V microcontroller SPI interface?
Yes, X9400WS24IZ-2.7 is fully compatible with 3.3 V SPI interfaces: its VCC range (2.7–5.5 V) includes 3.3 V, input thresholds (VIH = 0.7×VCC, VIL = 0.1×VCC) align with standard 3.3 V logic levels, and SO output is push-pull with VOL ≤ 0.4 V at 3 mA - eliminating need for level translators in mixed-voltage systems.
What happens to the wiper position of X9400WS24IZ-2.7 after power cycling?
Upon power-up, X9400WS24IZ-2.7 automatically loads the contents of Data Register 0 (DR0) into the volatile Wiper Counter Register (WCR), restoring the last-saved wiper position. This power-on recall behavior is guaranteed across the full -40°C to +85°C temperature range and requires no host intervention, ensuring deterministic startup in safety-critical applications.
X9400WS24IZ-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 4
- Number of Taps:
- 64
- Resistance (Ohms):
- 10k
- Interface:
- SPI
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- ±2.7V ~ 5.5V
- 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
X9400WS24IZ-2.7 FAQ
1.How can I place an order for X9400WS24IZ-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9400WS24IZ-2.7 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 X9400WS24IZ-2.7 reliable?
The price and inventory of X9400WS24IZ-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9400WS24IZ-2.7 is usually 5 days.
3.What payment methods are accepted for X9400WS24IZ-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9400WS24IZ-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9400WS24IZ-2.7?
X9400WS24IZ-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9400WS24IZ-2.7 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 X9400WS24IZ-2.7?
For technical support, including X9400WS24IZ-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9400WS24IZ-2.7 requirements.
6.How does Aetrix verify that X9400WS24IZ-2.7 is sourced from the original manufacturer or authorized distributors?
All X9400WS24IZ-2.7 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 X9400WS24IZ-2.7 meets industry standards.
7.What is the process for return or replacement of X9400WS24IZ-2.7?
All X9400WS24IZ-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9400WS24IZ-2.7, 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 X9400WS24IZ-2.7 part is unused and in its original packaging.
Return procedure for X9400WS24IZ-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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