My Inquiry
My Account
Renesas ISL90461WIH627-TK
- Part No.:
- ISL90461WIH627-TK
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- SOT-23-6
- Datasheet:
-
ISL90461WIH627-TK.pdf
- Description:
- IC DGTL POT 10KOHM 32TAP SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,414
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL90461WIH627-TK from Intersil is a digitally controlled volatile potentiometer (XDCP) configured as a 10kΩ variable resistor with 32 wiper tap points, 2-pin UP/DN interface, and operation from 2.7V to 5.5V supply. It delivers ±1 MI absolute linearity and 35 ppm/°C tempco for precision analog trimming in compact industrial sensor interfaces.
For engineers reviewing the ISL90461WIH627-TK datasheet, ISL90461WIH627-TK pinout, ISL90461WIH627-TK application, or ISL90461WIH627-TK equivalent, key selection criteria include its SOT-23-6 package, volatile memory architecture, 25µA active current, RH/RL terminal configuration, and compatibility with LCD contrast control and transducer biasing circuits.
Technical Context
The ISL90461WIH627-TK implements a 31-element resistor array with electronic wiper switching controlled by CS and U/D inputs; wiper position is stored in volatile memory upon CS high transition. Its operation requires no external clock or serial protocol-only edge-triggered up/down pulses synchronized to chip select.
It functions exclusively as a two-terminal variable resistor (RH–RL), not a three-terminal potentiometer: RH serves as both wiper and high-side terminal, eliminating independent wiper output. This architecture enables low-power biasing of laser diodes and sensor bridges without additional routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RTOTAL | 10 kΩ - fixed end-to-end resistance defining full-scale analog range for gain/offset tuning |
| Wiper resolution | 32 taps - provides 31 discrete resistance steps between RH and RL terminals |
| Supply voltage | 2.7 V to 5.5 V - supports direct interface with 3.3 V and 5 V logic/system rails |
| Active current | 25 µA max - enables battery-powered sensor calibration without significant drain |
| Tempco | ±35 ppm/°C typical - ensures stable resistance over -40°C to +85°C industrial temperature range |
| Settling time | 1 µs - allows rapid reconfiguration during dynamic system calibration sequences |
| Input leakage | ±1 µA - minimizes error current injection into high-impedance bias networks |
Pinout & Package
ISL90461WIH627-TK is housed in a 6-lead SOT-23 plastic package (JEDEC MO178AB, pkg drawing P6.064), measuring 2.80 mm × 2.60 mm × 1.30 mm, with gull-wing leads and 0.95 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive supply input | Accepts 2.7–5.5 V; powers internal CMOS logic and switch array |
| GND | Ground reference | Return path for supply and signal; must be low-impedance for noise immunity |
| U/D | Direction control input | LOW = decrement wiper toward RL; HIGH = increment toward RH on rising edge |
| CS | Chip select enable | LOW activates counter; HIGH stores current tap and enters standby (0.3 µA) |
| RL | Low terminal | Fixed end of resistor array; forms two-terminal variable resistor with RH |
| RH | High terminal / Wiper | Connected internally to wiper; resistance RH–RL varies with tap position |
Key Features
| Feature | Design Value |
|---|---|
| Volatile XDCP architecture | Eliminates nonvolatile memory wear-out; resets to default tap on power-up unless externally initialized |
| 2-pin UP/DN interface | Reduces PCB routing complexity vs. SPI/I²C; compatible with GPIO-limited microcontrollers |
| 0.3 µA standby current | Enables always-on calibration nodes in energy-constrained IoT sensor nodes |
| ±1 MI absolute linearity | Ensures predictable voltage division across full 32-tap range for accurate sensor offset correction |
| SC-70/SOT-23 package options | Supports space-constrained designs; ISL90461WIH627-TK uses SOT-23 for higher thermal mass and handling robustness |
Applications
| LCD Contrast Control | Laser Diode Biasing |
|---|---|
Use Scenario: Adjusting contrast voltage for monochrome STN or segment LCD displays in industrial HMIs. IC Role / Device Role / Timing Role: Two-terminal variable resistor setting DC bias voltage at LCD V0 pin. Use Value: Replaces mechanical trimpot with automated, repeatable, and vibration-resistant digital adjustment. | Use Scenario: Setting precise bias current for edge-emitting laser diodes in optical transceivers. IC Role / Device Role / Timing Role: Configurable current-limiting resistor in laser driver feedback loop. Use Value: Enables factory calibration and field recalibration without soldering or component replacement. |
| Pressure Sensor Bridge Trim | Temperature Sensor Offset Compensation |
Use Scenario: Fine-tuning zero-point offset of silicon piezoresistive pressure sensors in automotive manifold modules. IC Role / Device Role / Timing Role: Adjustable series resistor in Wheatstone bridge leg to null initial offset. Use Value: Achieves <±1 mV offset after calibration across -40°C to +85°C using 35 ppm/°C tempco. | Use Scenario: Compensating cold-junction offset in thermocouple amplifier front-ends. IC Role / Device Role / Timing Role: Programmable gain-setting resistor in instrumentation amplifier feedback path. Use Value: Allows one-time or periodic recalibration to correct for PCB thermal gradients affecting reference junction accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5160BRJZ-10-R7 | 32-tap, 10 kΩ, SPI interface, 1.8–5.5 V supply, ±20% RTOT tolerance | Requires SPI controller; higher RTOT tolerance impacts absolute accuracy in trimming | Select when SPI infrastructure exists and deterministic write timing is required |
| MCP4017T-103I/OT | 64-tap, 10 kΩ, I²C interface, 2.7–5.5 V, ±20% RTOT, 100 ppm/°C tempco | Higher resolution but worse tempco; I²C addressability supports multi-device buses | Select when multiple DCPs share a bus and 64-step granularity justifies added interface overhead |
Compared with AD5160BRJZ-10-R7 and MCP4017T-103I/OT, the ISL90461WIH627-TK offers superior temperature stability (±35 ppm/°C vs. 100 ppm/°C), lower active current (25 µA vs. 40–60 µA), and minimal GPIO footprint-making it optimal for standalone, low-power, high-stability analog trimming where SPI/I²C resources are constrained.
Availability
ISL90461WIH627-TK is available at Aetrix Electronics and suitable for LCD contrast control, laser diode biasing, pressure sensor bridge trim, and temperature sensor offset compensation requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for ISL90461WIH627-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, designs high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.
The ISL90461WIH627-TK belongs to Intersil's XDCP (eXternally Digitally Controlled Potentiometer) family, engineered specifically for replacing mechanical potentiometers in industrial and automotive sensor calibration, display biasing, and analog signal conditioning systems.
FAQ
What is the terminal configuration of the ISL90461WIH627-TK?
The ISL90461WIH627-TK operates as a two-terminal variable resistor: RH serves as both the wiper and high-side terminal, while RL is the low-side terminal. There is no independent wiper output pin-resistance is measured exclusively between RH and RL, and wiper movement shifts the effective tap point along the 31-resistor array.
Does the ISL90461WIH627-TK retain wiper position after power cycling?
No, the ISL90461WIH627-TK uses volatile memory only. Upon power-up, the wiper defaults to an undefined position and must be reinitialized via the UP/DN interface. System firmware must restore the desired tap count after each reset or power cycle to ensure repeatable analog settings.
What is the maximum allowable voltage across RH and RL terminals of the ISL90461WIH627-TK?
The ISL90461WIH627-TK specifies RH and RL terminal voltages from 0 V to VDD (2.7–5.5 V). Applying voltage beyond this range-such as AC signals exceeding VDD or reverse polarity-violates absolute maximum ratings and may cause permanent damage. It is intended for DC bias and trimming, not signal attenuation.
Can the ISL90461WIH627-TK be used in a three-terminal potentiometer configuration?
No-the ISL90461WIH627-TK lacks an independent wiper output. Its internal architecture connects the wiper directly to RH, making RH both the adjustable node and one end of the resistor string. For true three-terminal operation (e.g., voltage divider with separate wiper), a different device such as the ISL22316 or AD5206 is required.
How does the ISL90461WIH627-TK handle rapid successive wiper adjustments?
When the ISL90461WIH627-TK wiper moves multiple positions rapidly, the RH–RL resistance may transiently deviate due to internal switch settling. The datasheet specifies 1 µs settling time per step; moving N steps consecutively requires N × 1 µs for full stabilization. Applications demanding fast multi-step reconfiguration must account for cumulative settling delay to avoid measurement errors.
ISL90461WIH627-TK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Rheostat
- Number of Circuits:
- 1
- Number of Taps:
- 32
- Resistance (Ohms):
- 10k
- Interface:
- Up/Down (U/D, CS)
- Memory Type:
- Volatile
- Voltage - Supply:
- 2.7V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±35ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 6-SOT
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 600
ISL90461WIH627-TK FAQ
1.How can I place an order for ISL90461WIH627-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL90461WIH627-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 ISL90461WIH627-TK reliable?
The price and inventory of ISL90461WIH627-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL90461WIH627-TK is usually 5 days.
3.What payment methods are accepted for ISL90461WIH627-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL90461WIH627-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL90461WIH627-TK?
ISL90461WIH627-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL90461WIH627-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 ISL90461WIH627-TK?
For technical support, including ISL90461WIH627-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL90461WIH627-TK requirements.
6.How does Aetrix verify that ISL90461WIH627-TK is sourced from the original manufacturer or authorized distributors?
All ISL90461WIH627-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 ISL90461WIH627-TK meets industry standards.
7.What is the process for return or replacement of ISL90461WIH627-TK?
All ISL90461WIH627-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL90461WIH627-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 ISL90461WIH627-TK part is unused and in its original packaging.
Return procedure for ISL90461WIH627-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL90461WIH627-TK Tags
-
MCP4018T-103E/LT
Microchip Technology
-
MCP4018T-503E/LT
Microchip Technology
-
MCP4011T-103E/SN
Microchip Technology
-
MCP4018T-104E/LT
Microchip Technology
-
MCP4017T-503E/LT
Microchip Technology
-
MCP4018T-502E/LT
Microchip Technology
-
MCP4017T-103E/LT
Microchip Technology
-
MCP4531T-103E/MF
Microchip Technology
-
MCP4021T-202E/SN
Microchip Technology
-
MCP4023T-103E/CH
Microchip Technology
-
MCP4022T-503E/CH
Microchip Technology
-
MCP4551T-502E/MS
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
