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Renesas ISL90726WIE627Z-TK
- Part No.:
- ISL90726WIE627Z-TK
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
ISL90726WIE627Z-TK.pdf
- Description:
- IC DGTL POT 10KOHM 128TAP SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,492
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Product details
Overview
ISL90726WIE627Z-TK from Intersil is a volatile digitally controlled potentiometer (XDCP) implementing a 128-tap resistor array with I²C interface control, 10kΩ total resistance, ±20% tolerance, and wiper resistance of 85Ω at 3.3V - used for precision analog trimming in sensor biasing and LCD contrast adjustment.
For engineers reviewing the ISL90726WIE627Z-TK datasheet, ISL90726WIE627Z-TK pinout, ISL90726WIE627Z-TK application, or ISL90726WIE627Z-TK equivalent, key selection factors include I²C-compatible 6-pin SC-70 package, 2.7–5.5V supply range, 200µA max active current, 500nA standby current, and 45ppm/°C typical rheostat tempco.
Technical Context
The ISL90726WIE627Z-TK integrates a 127-element resistor ladder with CMOS wiper switches and an I²C slave interface operating up to 400kHz. Its 7-bit volatile wiper register (WR) controls tap position between RL and RH terminals, with power-on reset to midscale (0x40).
It supports standard I²C timing including START/STOP detection, ACK handshake, and address/data byte framing using a fixed 7-bit slave ID (0x5E). The device operates exclusively as a slave, with no internal non-volatile storage - all settings are lost on power cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Total Resistance (RTOTAL) | 10kΩ - defines full-scale analog adjustment range for gain/offset circuits |
| Wiper Resistance (RW) | 85Ω typ at VCC = 3.3V - contributes minimal series error in rheostat mode |
| Tempco (Rheostat) | ±45 ppm/°C typical - ensures stable resistance over -40°C to +85°C industrial range |
| I²C Clock Frequency | 400 kHz - compatible with standard Fast-mode I²C controllers without timing margin risk |
| Supply Current (Active) | 200 µA max - enables low-power embedded trimming in battery-backed systems |
| Standby Current | 500 nA max - allows continuous I²C bus presence with negligible quiescent drain |
| Wiper Response Time | 500 ns - ensures sub-microsecond analog output update after I²C write completion |
Pinout & Package
Package: 6-lead SC-70 (Pb-free, RoHS compliant), footprint per JEDEC MO203AB and EIAJ SC70 standards; dimensions: 2.15mm × 1.35mm × 0.95mm (max height).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Positive supply input | Accepts 2.7V–5.5V; powers internal logic and resistor array; decoupling required near pin |
| 2 - GND | Ground reference | Return path for supply and DCP current; must be low-impedance connection to system ground plane |
| 3 - SCL | I²C clock input | Open-drain, requires external pull-up; synchronizes all I²C data transfers to master clock |
| 4 - SDA | I²C bidirectional data | Open-drain, shared bus line; transmits ACK/NACK and carries address/data bytes |
| 5 - RW | Wiper terminal | Analog output node; resistance to RL varies from ~0Ω to 10kΩ in 78.1Ω steps (10kΩ/127) |
| 6 - RL | Low-end potentiometer terminal | Fixed end of resistor ladder; forms voltage divider or variable series resistance with RW |
Key Features
| Feature | Design Value |
|---|---|
| Volatile 128-tap control | Enables dynamic real-time trimming without NVM wear-out or write latency; resets to midscale on power-up |
| I²C serial interface | Reduces PCB routing complexity vs. parallel digital pots; supports multi-drop bus with unique slave ID (0x5E) |
| Low 500nA standby current | Permits always-on I²C monitoring in energy-critical applications such as portable sensor nodes |
| 45ppm/°C rheostat tempco | Minimizes drift-induced gain error in temperature-sensitive analog signal paths (e.g., transducer front-ends) |
| SC-70 package | Enables high-density placement in space-constrained designs like handheld displays and optical modules |
Applications
| LCD Contrast Adjustment | Laser Diode Biasing |
|---|---|
|
Use Scenario: Fine-tuning contrast voltage in automotive or industrial LCD panels under varying ambient temperature. IC Role / Device Role / Timing Role: Digitally programmable rheostat setting DC bias level for LCD segment drivers. Use Value: Replaces mechanical trimpots with field-updatable settings and 45ppm/°C stability across -40°C to +85°C. |
Use Scenario: Calibrating bias current for edge-emitting laser diodes in fiber-optic transceivers. IC Role / Device Role / Timing Role: Precision current-limiting element in constant-current source topology. Use Value: Enables factory and field calibration via I²C without hardware modification; 85Ω wiper resistance minimizes offset error. |
| DDR3 Memory Margining | Temperature Sensor Offset Trim |
|
Use Scenario: Adjusting termination voltage (VTT) or reference voltage (VREF) during DDR3 memory validation and yield optimization. IC Role / Device Role / Timing Role: Programmable voltage divider providing precise, repeatable DC reference levels. Use Value: Supports automated test equipment (ATE) integration via I²C for batch calibration; 128-step resolution yields ~78mV step size at 10kΩ. |
Use Scenario: Compensating zero-point offset in RTD or thermistor-based temperature measurement circuits. IC Role / Device Role / Timing Role: Analog trim element in Wheatstone bridge or op-amp offset nulling network. Use Value: Delivers monotonic 127-step adjustment with ±0.25 MI integral non-linearity, ensuring linear correction across full temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5170BRJZ-10-R7 | Non-volatile EEPROM storage; 10kΩ RTOTAL; SPI interface; 128 taps; 150ppm/°C tempco | Retains wiper position after power loss; unsuitable where volatile reset-to-midscale is required | Select when persistent settings are mandatory and SPI is preferred over I²C |
| MCP4017T-103I/OT | Volatile; 10kΩ RTOTAL; I²C interface; 64 taps; 100ppm/°C tempco; SC-70 package | Half the resolution (64 vs. 128 taps); higher tempco reduces accuracy in wide-temperature environments | Select when lower cost and reduced resolution are acceptable trade-offs for identical footprint and interface |
Compared with AD5170BRJZ-10-R7 and MCP4017T-103I/OT, the ISL90726WIE627Z-TK offers superior temperature stability (45ppm/°C vs. 150/100ppm/°C) and higher resolution for precision analog trimming, but lacks non-volatility and uses a fixed I²C address.
Availability
ISL90726WIE627Z-TK is available at Aetrix Electronics and suitable for LCD brightness control, laser diode biasing, DDR3 margining, and sensor offset trimming requiring stable component supply across industrial temperature ranges.
Supply support for ISL90726WIE627Z-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
Intersil Corporation (now part of Renesas Electronics) is a U.S.-based analog and mixed-signal semiconductor company founded in 1967, specializing in power management, precision analog, and interface ICs.
The ISL90726WIE627Z-TK belongs to Intersil's XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in high-reliability, space-constrained analog calibration applications.
FAQ
What is the I²C slave address of the ISL90726WIE627Z-TK?
The ISL90726WIE627Z-TK uses a fixed 7-bit I²C slave address of 0x5E (101110x), where the LSB is the R/W bit. This address is hard-coded and not user-configurable. Communication requires proper START/STOP conditions and ACK handshaking per the FN8244 datasheet timing specifications. The ISL90726WIE627Z-TK responds only to this address and ignores all other slave addresses.
Does the ISL90726WIE627Z-TK retain its wiper position after power cycling?
No, the ISL90726WIE627Z-TK is a volatile digital potentiometer: its 7-bit wiper register resets to 0x40 (midscale) on every power-up. It contains no non-volatile memory. This behavior is intentional for applications requiring guaranteed known-state initialization, such as safety-critical sensor calibration or display bias circuits. The ISL90726WIE627Z-TK must be reprogrammed via I²C after each power cycle to restore desired settings.
What is the maximum voltage that can be applied across the RL and RW terminals of the ISL90726WIE627Z-TK?
The absolute maximum voltage across any DCP pin (RL, RW, or RH) with respect to GND is VCC, and the maximum VCC is +7V. However, the recommended operating range limits VCC to 2.7V–5.5V, and power dissipation per DCP element must not exceed 5mW. Therefore, the safe maximum voltage across RL–RW is constrained by both supply voltage and power rating - for example, at 10kΩ and 5.5V, the worst-case voltage drop is ≤5.5V, but current must remain below √(5mW / 10kΩ) ≈ 707µA. The ISL90726WIE627Z-TK is not rated for high-voltage AC or signal swing beyond its supply rails.
Can the ISL90726WIE627Z-TK be used in rheostat mode with only two terminals?
Yes, the ISL90726WIE627Z-TK supports rheostat configuration using RL and RW terminals, with RH internally unconnected. In this mode, resistance between RL and RW varies from ~0Ω (wiper at RL) to 10kΩ (wiper at RH) in 127 discrete steps. The wiper resistance (85Ω typ) appears in series and must be accounted for in precision current-setting applications. The ISL90726WIE627Z-TK does not require RH connection in rheostat use, simplifying PCB layout versus three-terminal potentiometer configurations.
Is the ISL90726WIE627Z-TK RoHS compliant and lead-free?
Yes, the ISL90726WIE627Z-TK is Pb-free and RoHS compliant, using 100% matte tin (e3) termination finish and RoHS-compliant molding compounds. It meets IPC/JEDEC J-STD-020 reflow requirements for lead-free soldering, with a peak reflow temperature rating exceeding 260°C. The "Z" suffix in the part number explicitly denotes RoHS compliance, and the package drawing P6.049 confirms SC-70 Pb-free construction. Aetrix Electronics guarantees full compliance documentation for the ISL90726WIE627Z-TK.
ISL90726WIE627Z-TK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 128
- Resistance (Ohms):
- 10k
- Interface:
- I2C
- Memory Type:
- Volatile
- Voltage - Supply:
- 2.7V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±45ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SC-70-6
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 85
ISL90726WIE627Z-TK FAQ
1.How can I place an order for ISL90726WIE627Z-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL90726WIE627Z-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 ISL90726WIE627Z-TK reliable?
The price and inventory of ISL90726WIE627Z-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL90726WIE627Z-TK is usually 5 days.
3.What payment methods are accepted for ISL90726WIE627Z-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL90726WIE627Z-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL90726WIE627Z-TK?
ISL90726WIE627Z-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL90726WIE627Z-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 ISL90726WIE627Z-TK?
For technical support, including ISL90726WIE627Z-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL90726WIE627Z-TK requirements.
6.How does Aetrix verify that ISL90726WIE627Z-TK is sourced from the original manufacturer or authorized distributors?
All ISL90726WIE627Z-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 ISL90726WIE627Z-TK meets industry standards.
7.What is the process for return or replacement of ISL90726WIE627Z-TK?
All ISL90726WIE627Z-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL90726WIE627Z-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 ISL90726WIE627Z-TK part is unused and in its original packaging.
Return procedure for ISL90726WIE627Z-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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