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Renesas ISL22414TFU10Z-TK
- Part No.:
- ISL22414TFU10Z-TK
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL22414TFU10Z-TK.pdf
- Description:
- IC DGT POT 100KOHM 256TAP 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,582
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Product details
Overview
ISL22414TFU10Z-TK from Renesas (formerly Intersil) is a single-channel digitally controlled potentiometer (XDCP™) with 256-tap resolution, SPI interface, non-volatile wiper position storage, and dual-supply operation (VCC = 2.25–5.5 V, V− = −2.25 to −5.5 V). It implements a 100 kΩ end-to-end resistance in a 10-lead MSOP package and operates across −40°C to +125°C for industrial-grade signal conditioning and bias control.
For engineers reviewing the ISL22414TFU10Z-TK datasheet, ISL22414TFU10Z-TK pinout, ISL22414TFU10Z-TK application, or ISL22414TFU10Z-TK equivalent, this page delivers verified technical context, exact pin functions, real-world use cases in bipolar analog circuits, and validated alternative options - all grounded in FN6424 Rev 2.00 and official ordering data.
Technical Context
The ISL22414TFU10Z-TK integrates a monolithic CMOS DCP array with "make-before-break" CMOS switches, volatile Wiper Register (WR), and non-volatile Initial Value Register (IVR) that auto-loads at power-up. Its SPI Mode 0 interface supports daisy-chain configuration and enables direct read/write access to WR, IVR, and 14 general-purpose non-volatile registers.
It supports both voltage-divider and rheostat modes, features shutdown mode with RW shorted to RL, and delivers ±0.2 LSB typical DNL and ±0.5 LSB typical INL over full temperature range - confirmed for the T-option (100 kΩ) variant per datasheet Table on Page 4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Total Resistance | 100 kΩ - fixed end-to-end value for precision gain/bias scaling in bipolar op-amp circuits. |
| Taps | 256 - enables 0.39% resolution per step for fine analog parameter adjustment. |
| Interface | SPI Mode 0 - clocked on rising edge (SDI), output on falling edge (SDO); supports daisy chain without extra CS lines. |
| Supply Range | VCC: 2.25–5.5 V; V−: −2.25 to −5.5 V - enables true bipolar terminal swing between V− and VCC. |
| Temp Range | −40°C to +125°C - qualified for under-hood automotive, industrial motor control, and high-reliability embedded systems. |
| Wiper Resistance | 70 Ω typical @ 1 mA - low on-resistance minimizes signal path error in precision divider configurations. |
| Non-volatile Endurance | 1,000,000 cycles - supports field-updatable calibration without wear-out concerns. |
Pinout & Package
Package: 10-lead MSOP (M10.118), Pb-free/RoHS compliant, thermal resistance θJA = 132°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SCK | SPI clock input | Master-generated clock synchronizing all serial transfers; timing-critical for tWH/tWL ≥100 ns. |
| 2 SDO | SPI data output | Push-pull or open-drain configurable (via ACR[1]); outputs data on falling SCK edge. |
| 3 SDI | SPI data input | Accepts instruction + data bytes on rising SCK edge; requires tSU/tH ≥50 ns setup/hold. |
| 4 CS | Chip select (active low) | Enables device and initiates SPI transaction; rising edge triggers non-volatile write completion. |
| 5 V− | Negative supply rail | Supports bipolar DCP operation; must be within −2.25 V to −5.5 V for specified performance. |
| 6 GND | Signal ground reference | Common return for digital logic; separate from analog ground planes in mixed-signal layouts. |
| 7 RL | DCP low terminal | Fixed end of resistor string; connected to V− in voltage-divider mode for bipolar range. |
| 8 RW | DCP wiper terminal | Movable tap position controlled by WR register; shorted to RL during shutdown mode. |
| 9 RH | DCP high terminal | Fixed end of resistor string; connected to VCC in voltage-divider mode. |
| 10 VCC | Positive supply rail | Supplies core logic and DCP array; must be within 2.25 V to 5.5 V for full functionality. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-supply DCP architecture | Enables RH–RL voltage swing from −5.5 V to +5.5 V, supporting true bipolar signal conditioning. |
| Non-volatile IVR + volatile WR | Guarantees repeatable power-on wiper position while allowing runtime adjustment without EEPROM wear. |
| 14 GP non-volatile registers | Stores multi-point calibration tables or system configuration data across power cycles. |
| Shutdown mode (ACR[6]) | Forces RW→RL short and opens RH–RL path, eliminating leakage current in standby systems. |
| Make-before-break switching | Prevents momentary open-circuit glitches during wiper transitions, critical for stable feedback loops. |
Applications
| Audio Signal Level Control | Industrial Sensor Biasing |
|---|---|
Use Scenario: Programmable gain control in professional audio mixers with bipolar op-amps requiring symmetrical ±5 V signal paths. IC Role / Device Role / Timing Role: Configurable 100 kΩ DCP operating as voltage divider between VCC = +5 V and V− = −5 V, setting reference voltage for PGA stages. Use Value: Eliminates manual trimpots; enables remote calibration via SPI and retains last-set level after power cycle. | Use Scenario: Precision offset nulling in strain-gauge bridge amplifiers deployed in factory-floor PLC I/O modules. IC Role / Device Role / Timing Role: Rheostat-mode DCP (RW–RL) injecting calibrated DC bias into instrumentation amplifier inputs. Use Value: Achieves <±0.5 LSB INL over −40°C to +125°C, ensuring sensor accuracy without recalibration. |
| Laser Diode Current Setpoint | Medical Instrument Calibration |
Use Scenario: Stable current-source programming for fiber-optic transceivers in telecom equipment operating at extended temperature. IC Role / Device Role / Timing Role: Voltage-divider DCP sets reference for high-side current-sense amplifier controlling laser driver MOSFET gate. Use Value: 100 kΩ tolerance ±20% and ±50 ppm/°C tempco ensure setpoint drift <0.1% over full industrial range. | Use Scenario: Factory-trimmed gain/offset compensation in portable ECG front-ends requiring FDA-compliant traceability. IC Role / Device Role / Timing Role: Stores calibration coefficients in GP registers; loads IVR at boot to restore patient-specific baseline settings. Use Value: 50-year data retention at ≤+55°C meets medical device long-term archival requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5174BRMZ-100 | Single 256-tap DCP, I²C interface, 100 kΩ, same MSOP-10 package, but no dual-supply support (VSS = GND only). | Requires unipolar supply; unsuitable for bipolar op-amp biasing where V− < 0 V is needed. | Select when I²C bus is preferred and bipolar operation is not required. |
| MAX5487ETA+T | 256-tap SPI DCP, 100 kΩ, 8-lead µMAX, supports VDD = 2.7–5.5 V only; no negative rail capability. | Lacks V− pin and bipolar terminal voltage range; limited to single-supply signal chains. | Choose for space-constrained designs where dual-supply operation is unnecessary. |
Compared with AD5174BRMZ-100 and MAX5487ETA+T, the ISL22414TFU10Z-TK uniquely supports true bipolar DCP operation (V− to VCC), enabling precision analog control in ±5 V and ±12 V systems where alternatives require external level-shifting or redesign.
Availability
ISL22414TFU10Z-TK is available at Aetrix Electronics and suitable for industrial motor drives, medical instrumentation, and telecom laser control requiring stable component supply, long-term lifecycle continuity, and RoHS-compliant packaging.
Supply support for ISL22414TFU10Z-TK 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
Renesas Electronics acquired Intersil in 2017 and maintains full support for legacy precision analog products including the ISL22414 family.
The ISL22414 product line delivers digitally programmable resistance for high-reliability analog tuning in harsh environments - designed specifically for industrial, automotive, and medical systems demanding non-volatile calibration and extended temperature operation.
FAQ
What is the exact resistance tolerance and temperature coefficient of ISL22414TFU10Z-TK?
The ISL22414TFU10Z-TK has a total resistance tolerance of ±20% and an end-to-end temperature coefficient of ±50 ppm/°C, as specified for the T-option (100 kΩ) in the Analog Specifications table on Page 4 of FN6424 Rev 2.00. These values are measured over −40°C to +125°C and apply to the RH–RL terminals in voltage-divider mode.
Does ISL22414TFU10Z-TK support daisy-chaining multiple devices on one SPI bus?
Yes, ISL22414TFU10Z-TK supports daisy-chain configuration per the Applications Information section on Page 14. The SDO of one device connects to the SDI of the next, with shared SCK and CS lines. This allows simultaneous wiper updates across multiple ISL22414TFU10Z-TK units using a single SPI master.
How does the shutdown mode function in ISL22414TFU10Z-TK?
In shutdown mode (enabled by setting ACR[6] = 0), the ISL22414TFU10Z-TK forces an open circuit between RH and RL while shorting RW to RL. This eliminates current flow through the DCP string and reduces supply current to <2.5 µA, as verified in the Operating Specifications table on Page 5.
Can ISL22414TFU10Z-TK operate with unipolar supplies only?
No - ISL22414TFU10Z-TK requires both VCC and V− rails to function. While V− may be tied to GND in some implementations, doing so forfeits bipolar terminal voltage range and violates the recommended operating conditions. The device is architected for true dual-rail analog control.
What is the maximum SPI clock frequency supported by ISL22414TFU10Z-TK?
The ISL22414TFU10Z-TK supports SPI clock frequencies up to 5 MHz, as confirmed in the Serial Interface Specifications table on Page 6. Timing parameters including tCYC = 200 ns, tWH/tWL ≥100 ns, and tSU/tH ≥50 ns are guaranteed at this rate across the full temperature range.
ISL22414TFU10Z-TK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 256
- Resistance (Ohms):
- 100k
- Interface:
- SPI
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- ±2.25V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- 50ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 10-MSOP
- Operating Temperature:
- -40°C ~ 125°C
- Resistance - Wiper (Ohms) (Typ):
- 70
ISL22414TFU10Z-TK FAQ
1.How can I place an order for ISL22414TFU10Z-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL22414TFU10Z-TK 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 ISL22414TFU10Z-TK reliable?
The price and inventory of ISL22414TFU10Z-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL22414TFU10Z-TK is usually 5 days.
3.What payment methods are accepted for ISL22414TFU10Z-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL22414TFU10Z-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL22414TFU10Z-TK?
ISL22414TFU10Z-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL22414TFU10Z-TK 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 ISL22414TFU10Z-TK?
For technical support, including ISL22414TFU10Z-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL22414TFU10Z-TK requirements.
6.How does Aetrix verify that ISL22414TFU10Z-TK is sourced from the original manufacturer or authorized distributors?
All ISL22414TFU10Z-TK 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 ISL22414TFU10Z-TK meets industry standards.
7.What is the process for return or replacement of ISL22414TFU10Z-TK?
All ISL22414TFU10Z-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL22414TFU10Z-TK, 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 ISL22414TFU10Z-TK part is unused and in its original packaging.
Return procedure for ISL22414TFU10Z-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL22414TFU10Z-TK Tags
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