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Renesas X9315UM-2.7
- Part No.:
- X9315UM-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9315UM-2.7.pdf
- Description:
- IC DGTL POT 50KOHM 32TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,580
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Product details
Overview
X9315UM-2.7 from Intersil is a low-noise, low-power, 32-tap digitally controlled potentiometer (XDCP™) with nonvolatile wiper position storage, 50kΩ end-to-end resistance, 2.7V to 5.5V supply range, and 8-lead MSOP package - used for precision analog trimming in sensor signal conditioning, power supply feedback loops, and audio level control.
For engineers reviewing the X9315UM-2.7 datasheet, X9315UM-2.7 pinout, X9315UM-2.7 application, or X9315UM-2.7 equivalent, this page delivers verified specifications, real-world use cases, pin-level design meaning, and validated alternative options for industrial-grade analog adjustment circuits requiring power-down retention and ±20% resistance tolerance.
Technical Context
The X9315UM-2.7 implements a 31-element resistor array with make-before-break wiper switching, controlled via a 3-wire serial interface (CS, U/D, INC). Its 5-bit up/down counter drives a decoder that selects one of 32 tap points, enabling precise digital resistance adjustment without mechanical wear.
Wiper position is stored in nonvolatile memory on CS↑ with INC HIGH and recalled automatically at power-up. The device operates with temperature-compensated resistive elements, ±300 ppm/°C total resistance TC, and ratiometric TC of ±20 ppm/°C - ensuring stable voltage division across 0°C to +70°C commercial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 50 kΩ ±20% - defines full-scale analog adjustment range and sets current limits in voltage divider or variable resistor configurations |
| Supply voltage range | 2.7 V to 5.5 V - enables direct compatibility with 3.3 V and 5 V systems without level-shifting |
| Active supply current | 80 µA max - supports battery-powered or low-quiescent-current applications such as portable instrumentation |
| Standby current | 5 µA max - minimizes power loss during idle periods while retaining programmability readiness |
| Wiper resistance | 400–1000 Ω at 2.7 V - impacts insertion loss and linearity error in high-impedance signal paths |
| Resolution | 3% - corresponds to ~1.6 kΩ per step across 50 kΩ, sufficient for coarse gain/offset calibration |
| Nonvolatile store time | 5–10 ms - determines minimum system delay required to commit wiper position before reconfiguration |
Pinout & Package
Package: 8-lead MSOP (Pb-free), JEDEC MO-187AA compliant, body dimensions 3.0 mm × 3.0 mm × 0.85 mm, thermal resistance θJA = 154°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply input | Must be ≥ VH, VL, VW; powers internal logic and resistor array; supports 2.7–5.5 V operation |
| VSS | Ground reference | Return path for all internal currents; must be connected directly to system ground plane |
| RH/VH | High terminal | Fixed end of resistor array; voltage range 0 to VCC; functions as top rail in voltage divider |
| RL/VL | Low terminal | Fixed end of resistor array; voltage range 0 to VCC; functions as bottom rail in voltage divider |
| RW/VW | Wiper output | Movable tap point; series resistance 400–1000 Ω at 2.7 V; connects to load or feedback node |
| CS | Chip select | Active-low enable; stores wiper position when rising edge occurs with INC HIGH |
| U/D | Direction control | Sets increment/decrement direction of wiper movement; sampled on each INC falling edge |
| INC | Increment clock | Negative-edge-triggered; advances wiper one position per valid edge; controls timing of adjustment |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last-set position across power cycles - eliminates need for external EEPROM or host recalibration |
| Make-before-break wiper switching | Prevents open-circuit transients during tap transitions - critical for stable biasing in amplifier feedback networks |
| Temperature-compensated resistor array | ±300 ppm/°C RTOTAL drift - maintains consistent gain/attenuation over 0°C to +70°C operating range |
| Low 5 µA standby current | Enables always-on configuration in energy-sensitive systems without sacrificing adjustability |
| 3-wire serial interface | Requires only three GPIOs - simplifies integration into microcontroller-based calibration subsystems |
Applications
| Instrumentation Sensor Calibration | DC-DC Converter Feedback Trimming |
|---|---|
|
Use Scenario: Adjusting offset/gain in bridge sensor signal chains (e.g., load cells, RTDs) where ambient temperature varies between 0°C and 70°C. IC Role / Device Role / Timing Role: Two-terminal variable resistor setting reference voltage for instrumentation amplifier input stage. Use Value: Eliminates manual potentiometer replacement; retains calibrated values after field power cycling. |
Use Scenario: Fine-tuning output voltage of isolated flyback or buck converter in industrial power supplies. IC Role / Device Role / Timing Role: Three-terminal potentiometer in TL431-based feedback divider network. Use Value: Enables remote firmware-controlled output adjustment without hardware modification. |
| Audio Volume Control | Laser Diode Bias Adjustment |
|
Use Scenario: Digital volume control in professional audio mixers with mute/unmute capability and power-loss recovery. IC Role / Device Role / Timing Role: Voltage divider feeding op-amp inverting input to set attenuation ratio. Use Value: Provides 32-step monotonic response with <−120 dBV noise floor - avoids audible zipper noise. |
Use Scenario: Setting precise bias current for telecom laser diodes in optical transceivers operating at 0°C to 70°C. IC Role / Device Role / Timing Role: Adjustable current-limit resistor in LM317-based constant-current source. Use Value: Ensures repeatable optical output power after cold start; ±20% RTOTAL tolerance accommodates process variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5204BRZ10 | Quad 10 kΩ channel, SPI interface, 2.7–5.5 V, no nonvolatile storage | Requires external MCU to reload settings after power cycle; better for multi-channel parallel adjustment | Select when simultaneous multi-pot control is needed and host retains state |
| MCP41050-I/P | Single 50 kΩ channel, SPI interface, 2.7–5.5 V, volatile wiper only | No power-loss retention; lower 100 µA active current but lacks EEPROM persistence | Choose for cost-sensitive designs where calibration is performed at boot |
Compared with AD5204BRZ10 and MCP41050-I/P, the X9315UM-2.7 uniquely combines single-channel 50 kΩ resistance, nonvolatile wiper storage, and 3-wire simplicity - making it optimal for space-constrained, self-recovering analog trim applications where EEPROM overhead or multi-channel complexity is unnecessary.
Availability
X9315UM-2.7 is available at Aetrix Electronics and suitable for sensor calibration, power supply feedback trimming, and audio level control requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.
Supply support for X9315UM-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 (now part of Renesas Electronics) is a semiconductor manufacturer specializing in precision analog, power management, and interface ICs for industrial, computing, and communications markets.
The X9315UM-2.7 belongs to Intersil's XDCP™ (Digitally Controlled Potentiometer) product line, designed specifically for replacing mechanical potentiometers in analog signal-path trimming applications requiring digital control and nonvolatile setting retention.
FAQ
What is the maximum wiper current rating for the X9315UM-2.7?
The X9315UM-2.7 has a maximum wiper current rating of ±3.75 mA under recommended operating conditions. This limit ensures safe operation within the 10 mW maximum power rating and prevents degradation of the 31-element resistor array or wiper switch contacts. Exceeding this current may cause irreversible resistance drift or increased noise in the X9315UM-2.7.
Does the X9315UM-2.7 retain its wiper position after power removal?
Yes, the X9315UM-2.7 retains its wiper position in nonvolatile memory and automatically recalls it upon power-up. This behavior is guaranteed by the device's EEPROM-based storage architecture, which provides 100-year data retention and 100,000 write cycles - a core feature distinguishing the X9315UM-2.7 from volatile digital potentiometers.
Can the X9315UM-2.7 operate from a 3.3 V supply?
Yes, the X9315UM-2.7 is fully specified for 2.7 V to 5.5 V operation, making it compatible with standard 3.3 V logic and power domains. At 3.3 V, its active current remains ≤80 µA, standby current ≤5 µA, and wiper resistance falls within the 400–1000 Ω range - all parameters confirmed in the FN8179 Rev.2.00 datasheet for the X9315UM-2.7.
What is the absolute linearity error specification for the X9315UM-2.7?
The X9315UM-2.7 has an absolute linearity error of ±1 MI (Minimum Increment), where MI = RTOTAL / 31 ≈ 1.61 kΩ for the 50 kΩ version. This means the actual wiper voltage deviates by no more than ±1.61 kΩ × (VH − VL)/RTOTAL from the ideal linear value - a key parameter for precision gain-setting applications using the X9315UM-2.7.
Is the X9315UM-2.7 RoHS-compliant and lead-free?
Yes, the X9315UM-2.7 is RoHS-compliant and supplied in a Pb-free MSOP package with 100% matte tin (e3) termination finish. Per FN8179 Rev.2.00 Note 2, it meets IPC/JEDEC J-STD-020 reflow requirements for lead-free assembly and is compatible with both SnPb and Pb-free soldering processes - confirming full compliance for the X9315UM-2.7.
X9315UM-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 32
- Resistance (Ohms):
- 50k
- Interface:
- Up/Down (U/D, INC, CS)
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 2.7V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-MSOP
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9315UM-2.7 FAQ
1.How can I place an order for X9315UM-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9315UM-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 X9315UM-2.7 reliable?
The price and inventory of X9315UM-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 X9315UM-2.7 is usually 5 days.
3.What payment methods are accepted for X9315UM-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9315UM-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9315UM-2.7?
X9315UM-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9315UM-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 X9315UM-2.7?
For technical support, including X9315UM-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9315UM-2.7 requirements.
6.How does Aetrix verify that X9315UM-2.7 is sourced from the original manufacturer or authorized distributors?
All X9315UM-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 X9315UM-2.7 meets industry standards.
7.What is the process for return or replacement of X9315UM-2.7?
All X9315UM-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9315UM-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 X9315UM-2.7 part is unused and in its original packaging.
Return procedure for X9315UM-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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