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Renesas X9400WV24Z-2.7
- Part No.:
- X9400WV24Z-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9400WV24Z-2.7.pdf
- Description:
- IC DGTL POT 10KOHM 64TAP 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,718
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Product details
Overview
X9400WV24Z-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, and 2.7V to 5.5V system supply operation. It integrates four independent resistor arrays in a single 24-pin TSSOP package and supports nonvolatile wiper position storage with power-on recall for use in precision analog trimming and programmable gain control circuits.
For engineers reviewing the X9400WV24Z-2.7 datasheet, X9400WV24Z-2.7 pinout, X9400WV24Z-2.7 application, or X9400WV24Z-2.7 equivalent, this page delivers verified technical context, exact pin functions, real-world use cases, and two confirmed alternative parts - all grounded in the FN8189 Rev 4.00 datasheet and Intersil's official ordering information.
Technical Context
The X9400WV24Z-2.7 implements four independent 63-segment resistor arrays, each controlled by a volatile 6-bit Wiper Counter Register (WCR) and backed by four nonvolatile 6-bit Data Registers (DR0–DR3). Its SPI interface supports read/write/transfer operations at up to 2 MHz, with hardware write protection via the WP pin and device addressing via A0/A1 pins for multi-device bus configuration.
Each potentiometer operates with analog supplies V+ and V− ranging from –5.5 V to +5.5 V (X9400WV24Z-2.7 variant: –5.5 V to –2.7 V and +2.7 V to +5.5 V), enabling bipolar signal conditioning. Power-on recall loads DR0 into the WCR, and standby current remains below 1 µA, supporting low-power embedded systems requiring stable analog tuning without external EEPROM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10 kΩ ±20% - sets full-scale analog range and load impedance for voltage divider or variable resistor configurations |
| Resolution | 64 taps (6-bit) - enables 1.56% step granularity for fine analog adjustment in closed-loop calibration |
| VCC operating range | 2.7 V to 5.5 V - supports direct integration with 3.3 V and 5 V microcontrollers without level-shifting |
| Wiper resistance | 40 Ω typical at 5 V - minimizes insertion error in precision gain-setting and offset trimming applications |
| Nonvolatile endurance | 100,000 data changes per bit per register - ensures long-term reliability in field-updatable calibration systems |
| Data retention | 100 years - guarantees persistent wiper settings across product lifecycle without battery backup |
| SPI clock frequency | Up to 2 MHz - allows fast reconfiguration during system initialization or dynamic parameter updates |
| Standby current | <1 µA max - enables always-on analog tuning in energy-constrained IoT sensor nodes and portable devices |
Pinout & Package
Package: 24-lead TSSOP (4.4 mm body width), RoHS-compliant, Pb-free plus anneal finish (MDP0044 drawing).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | System supply voltage input | Provides power for digital logic and interface circuitry; must ramp within 0.2–50 V/msec for reliable power-on recall |
| VSS | System ground reference | Common return path for digital and SPI interface signals; must be connected before analog supplies |
| V+, V− | Analog supply rails | Enable ±5.5 V bipolar operation; for X9400WV24Z-2.7: V+ = +2.7 V to +5.5 V, V− = −5.5 V to −2.7 V |
| CS | Chip select input | Active-low enable; HIGH places SO in high-impedance and device in standby; LOW initiates SPI communication |
| SCK | Serial clock input | Drives SPI timing; rising edge latches SI data, falling edge clocks SO data; max 2 MHz frequency |
| SI | Serial data input | Accepts instruction, address, and data bytes; supports daisy-chaining when SO is tied to next device's SI |
| SO | Serial data output | Push-pull output; returns read data or status bits; compatible with three-state bus sharing |
| HOLD | Serial communication pause | Allows pausing ongoing SPI transfer without resetting sequence; requires SCK LOW during assertion |
| WP | Hardware write protect | LOW disables nonvolatile writes to Data Registers; prevents accidental calibration loss during firmware updates |
| A0, A1 | Device address inputs | Set LSBs of 8-bit slave address; allow up to four X9400 devices on same SPI bus |
| VH0–VH3 / VL0–VL3 | Potentiometer terminal pairs | Fixed ends of each 63-segment array; VH/RH ≈ V+, VL/RL ≈ V−; define voltage divider endpoints |
| VW0–VW3 | Wiper outputs | Switch-selected tap points; output voltage scales linearly between VL and VH based on WCR value (0–63) |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent XDCPs | Four fully isolated 10 kΩ resistor arrays enable simultaneous gain, offset, threshold, and filter tuning in one IC |
| Nonvolatile wiper storage | Four 6-bit Data Registers per pot retain calibrated positions across power cycles without external memory |
| Power-on wiper recall | Automatically loads DR0 into WCR at startup - eliminates boot-time reinitialization in medical and industrial equipment |
| SPI-compatible interface | Standard 4-wire protocol (CS/SCK/SI/SO) with HOLD and WP pins simplifies integration with ARM Cortex-M and PIC MCUs |
| Bipolar analog operation | V+ and V− rails support ±2.7 V to ±5.5 V signal conditioning - essential for audio, sensor front-ends, and op-amp biasing |
| Low-power standby mode | <1 µA ICC2 current extends battery life in portable instrumentation and remote sensor nodes |
Applications
| Audio Signal Level Control | Programmable Gain Amplifier |
|---|---|
|
Use Scenario: Digital volume control in headphone amplifiers and line-out stages where mechanical pot wear and noise are unacceptable. IC Role / Device Role / Timing Role: Four-channel voltage divider replacing dual-gang mechanical pots; each channel independently adjusts left/right channel balance and master gain. Use Value: 64-step resolution enables smooth, click-free attenuation; nonvolatile storage preserves user volume preferences after power-off. |
Use Scenario: Closed-loop gain calibration in precision instrumentation amplifiers used in data acquisition systems. IC Role / Device Role / Timing Role: Sets feedback resistor ratio in op-amp configurations; wiper position updated during factory calibration and field recalibration. Use Value: 10 kΩ end-to-end resistance matches standard op-amp design values; 40 Ω wiper resistance minimizes gain error at mid-scale settings. |
| Offset Voltage Adjustment | Comparator Hysteresis Tuning |
|
Use Scenario: Zero-point correction in strain gauge bridges and thermocouple amplifiers where drift compensation is required over temperature. IC Role / Device Role / Timing Role: Two-terminal variable resistor injecting trim current into op-amp summing junctions to null DC offset. Use Value: Nonvolatile DR0 recall ensures consistent zeroing across power cycles; 100-year data retention avoids recalibration in deployed infrastructure. |
Use Scenario: Adjustable hysteresis in window comparators for battery voltage monitoring and overvoltage protection circuits. IC Role / Device Role / Timing Role: Configures upper/lower threshold resistors in dual-comparator feedback networks; each pot sets one trip point. Use Value: Independent quad channels allow simultaneous tuning of high/low thresholds and hysteresis width; SPI interface enables runtime adaptation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| X9400WS24IZT1 | Same core functionality, but in 24-lead SOIC (M24.3) instead of TSSOP; VCC range 2.7 V–5.5 V; industrial temp grade (–40°C to +85°C) | Preferred for through-hole prototyping or legacy PCBs designed for SOIC footprint; higher thermal mass aids stability in high-temp environments | Select when board layout accommodates SOIC or when extended temperature range is mandatory |
| AD5204BRUZ10 | Analog Devices quad 10 kΩ DCP with I²C interface, 256-tap resolution, and 2.7 V–5.5 V supply; no HOLD or WP pins; different register map | Lacks hardware write protection and SPI HOLD function; requires I²C host instead of SPI; higher resolution but slower update rate (max 400 kHz) | Choose for I²C-based systems needing finer resolution; avoid if SPI bus sharing or write-protection is required |
Compared with X9400WV24Z-2.7, X9400WS24IZT1 offers identical electrical specs and SPI compatibility in a larger SOIC package, while AD5204BRUZ10 provides higher resolution and I²C simplicity at the cost of missing critical features like hardware write protection and HOLD - making X9400WV24Z-2.7 uniquely suited for robust, SPI-based analog tuning in space-constrained TSSOP designs.
Availability
X9400WV24Z-2.7 is available at Aetrix Electronics and suitable for precision analog trimming, programmable gain control, and offset calibration requiring stable component supply in medical instrumentation, industrial sensors, and audio subsystems.
Supply support for X9400WV24Z-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 mixed-signal ICs for industrial, automotive, and communications markets.
The X9400 family was designed specifically for replacing mechanical potentiometers in digitally controlled analog signal paths - emphasizing nonvolatile storage, low wiper resistance, and SPI interoperability in compact packages.
FAQ
What is the operating temperature range for X9400WV24Z-2.7?
The X9400WV24Z-2.7 is rated for commercial temperature operation from 0°C to +70°C, as specified in the FN8189 Rev 4.00 datasheet under Ordering Information. This distinguishes it from industrial-grade variants like X9400WV24IZ-2.7 (–40°C to +85°C) and confirms its suitability for indoor, non-extreme environmental applications.
Does X9400WV24Z-2.7 support true bipolar analog operation?
Yes, X9400WV24Z-2.7 supports bipolar analog operation via dedicated V+ and V− pins. Per the datasheet, its analog supply range is V+ = +2.7 V to +5.5 V and V− = –5.5 V to –2.7 V, enabling symmetric ±2.7 V signal conditioning - critical for AC-coupled audio and sensor interfaces where ground-referenced pots fail.
How does power-on wiper recall work in X9400WV24Z-2.7?
X9400WV24Z-2.7 automatically loads the contents of Data Register 0 (DR0) into the Wiper Counter Register (WCR) upon power-up, provided VCC, V+, and V− all reach stable levels. The datasheet specifies that VCC must ramp within 0.2–50 V/msec and remain below 0.1 V for >1 second before restart to ensure reliable recall - a key requirement for unattended calibration systems.
Can X9400WV24Z-2.7 be used as a two-terminal variable resistor?
Yes, X9400WV24Z-2.7 can operate as a two-terminal variable resistor by connecting either VH or VL to the wiper (VW) and using the remaining terminal as the adjustable node. The datasheet explicitly states this configuration is supported, and the 40 Ω typical wiper resistance ensures minimal series insertion loss in current-setting applications.
Is hardware write protection (WP) active by default on X9400WV24Z-2.7?
No - the WP pin on X9400WV24Z-2.7 is active-low and must be driven LOW to disable nonvolatile writes to Data Registers. When left unconnected or pulled HIGH (e.g., via pull-up resistor), WP is inactive and writes are permitted. This design prevents accidental calibration erasure during normal operation unless intentionally asserted.
X9400WV24Z-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 24-TSSOP (0.173", 4.40mm 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-TSSOP
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 150
X9400WV24Z-2.7 FAQ
1.How can I place an order for X9400WV24Z-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9400WV24Z-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 X9400WV24Z-2.7 reliable?
The price and inventory of X9400WV24Z-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 X9400WV24Z-2.7 is usually 5 days.
3.What payment methods are accepted for X9400WV24Z-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9400WV24Z-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9400WV24Z-2.7?
X9400WV24Z-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9400WV24Z-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 X9400WV24Z-2.7?
For technical support, including X9400WV24Z-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9400WV24Z-2.7 requirements.
6.How does Aetrix verify that X9400WV24Z-2.7 is sourced from the original manufacturer or authorized distributors?
All X9400WV24Z-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 X9400WV24Z-2.7 meets industry standards.
7.What is the process for return or replacement of X9400WV24Z-2.7?
All X9400WV24Z-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9400WV24Z-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 X9400WV24Z-2.7 part is unused and in its original packaging.
Return procedure for X9400WV24Z-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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