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Renesas ISL21007CFB830Z
- Part No.:
- ISL21007CFB830Z
- Manufacturer:
- Renesas
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ISL21007CFB830Z.pdf
- Description:
- IC VREF SERIES 0.08% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,798
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Product details
Overview
ISL21007CFB830Z from Renesas (formerly Intersil) is a precision 3.000V floating-gate analog (FGA) voltage reference IC used for high-accuracy signal conditioning and data converter biasing in low-power industrial systems. It delivers ±1.0mV initial accuracy, 5ppm/°C temperature coefficient, 4.5µVP-P (0.1Hz–10Hz) output noise, and operates from 3.2V to 5.5V supply at ≤150µA current. It supports battery management and portable instrumentation requiring stable, low-drift references.
For engineers reviewing the ISL21007CFB830Z datasheet, ISL21007CFB830Z pinout, ISL21007CFB830Z application, or ISL21007CFB830Z equivalent, this page provides verified technical context, package mapping, real-world use cases, and validated alternative options - all grounded in FN6326 Rev.12.00 specifications and ordering documentation.
Technical Context
The ISL21007CFB830Z uses proprietary Floating Gate Analog (FGA) technology to achieve ultra-low drift and micropower operation without bandgap or Zener limitations. Its buffered output stage enables 3.000V reference generation with ±2.5% user-adjustable trim via high-impedance TRIM pin.
It features guaranteed performance across –40°C to +125°C, including 50ppm thermal hysteresis and 50ppm long-term stability (1000 hours), with input voltage range optimized specifically for 3.000V output (3.2V–5.5V). Ripple rejection is 60dB at 10kHz, and turn-on settling time is 120µs to ±0.1%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±1.0mV at +25°C - enables direct interface with 3V ADC/DAC full-scale ranges without scaling resistors. |
| Tempco | 5ppm/°C - ensures ≤±0.825mV total drift over –40°C to +125°C (ΔT = 165°C), critical for field-deployed instrumentation. |
| Noise (0.1–10Hz) | 4.5µVP-P - supports 16-bit+ resolution in precision data acquisition where low-frequency noise dominates error budget. |
| Supply Current | ≤150µA - allows continuous operation from coin-cell batteries or energy-harvesting sources for >10 years in sleep-mode systems. |
| Input Voltage Range | 3.2V to 5.5V - matches common 3.3V and 5V system rails while preventing dropout in brownout conditions. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive sensors, industrial PLC I/O modules, and base station power monitoring. |
| Trim Range | ±2.5% via TRIM pin - permits fine calibration of system gain/offset without external DAC or firmware compensation. |
Pinout & Package
ISL21007CFB830Z is housed in an 8-lead SOIC (M8.15) package with exposed pad not connected. Pin 1 is GND or NC; pins 3, 7, and 8 are DNC (do not connect); pin 5 is TRIM for ±2.5% output adjustment; pin 6 is VOUT; pin 2 is VIN; pins 1 and 4 are ground connections.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND or NC | Primary ground connection or no-connect option - must be tied to PCB ground plane for optimal noise immunity. |
| 2 | VIN | Power supply input - requires local 0.1µF ceramic decoupling to suppress supply ripple affecting reference stability. |
| 4 | GND | Dedicated ground return - connects internally to die substrate; should be routed separately from noisy digital grounds. |
| 5 | TRIM | High-impedance trim control - accepts voltage divider from VOUT to GND; enables ±2.5% output calibration without loading VOUT. |
| 6 | VOUT | Stable 3.000V reference output - capable of sourcing/sinking ±7mA; requires minimal load capacitance (≤1nF) for stability. |
| 3, 7, 8 | DNC | Internally connected, floating nodes - must remain unconnected on PCB to prevent parasitic coupling or latch-up. |
Key Features
| Feature | Design Value |
|---|---|
| FGA Technology | Eliminates traditional bandgap/Zener limitations - enables programmable reference voltages and near-zero aging drift. |
| Low 0.1–10Hz Noise | 4.5µVP-P - directly improves effective number of bits (ENOB) in high-resolution sigma-delta ADCs used in digital meters. |
| Micropower Operation | 75µA typical supply current - extends battery life in portable bar code scanners and handheld test equipment. |
| Wide Temp Range Support | –40°C to +125°C operation with 5ppm/°C tempco - meets AEC-Q200 stress requirements for automotive battery monitors. |
| User Output Trim | ±2.5% adjustment via high-Z TRIM pin - simplifies factory calibration and compensates for PCB trace resistance errors. |
Applications
| High-Resolution Data Acquisition | Digital Panel Meters |
|---|---|
|
Use Scenario: 24-bit delta-sigma ADC front-end in industrial process transmitters measuring pressure, flow, or temperature. IC Role / Device Role / Timing Role: Precision 3.000V reference for ADC full-scale calibration and ratiometric sensor excitation. Use Value: 4.5µVP-P low-frequency noise and 5ppm/°C tempco enable <10ppm total error over temperature - meeting Class 0.1 meter accuracy standards. |
Use Scenario: Portable handheld multimeter with autoranging 6½-digit display and dual-slope integration. IC Role / Device Role / Timing Role: Stable 3.000V reference for integrator capacitor charging and comparator threshold setting. Use Value: ±1.0mV initial accuracy and 50ppm long-term stability eliminate need for daily recalibration - extending calibration intervals to 1 year. |
| Battery Management Systems | Base Station Power Monitoring |
|
Use Scenario: Cell voltage monitoring in 12S Li-ion battery packs for EVs and energy storage systems. IC Role / Device Role / Timing Role: Reference for 16-bit SAR ADC sampling individual cell voltages with <1mV absolute accuracy. Use Value: 150µA max supply current minimizes self-heating error during continuous monitoring - preserving measurement integrity at +125°C ambient. |
Use Scenario: DC power rail supervision in 4G/5G macro base station remote radio units (RRUs). IC Role / Device Role / Timing Role: Reference for analog front-end monitoring of +48V backup battery and -48V telecom supply rails. Use Value: 3.2V–5.5V input range accommodates wide-voltage DC-DC outputs; 60dB PSRR rejects switching noise from adjacent buck converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL21007CFB825Z | 2.500V output, same ±1.0mV accuracy and 5ppm/°C tempco, identical 8 Ld SOIC package. | Used where 2.5V ADC full-scale or DAC reference is required instead of 3.0V; compatible with existing layout if VOUT routing allows voltage change. | Select when system architecture mandates 2.5V reference - e.g., interfacing with legacy 2.5V logic or specific ADC families requiring 2.5V VREF. |
| MAX6126AASA30+ | 3.000V output, ±0.1% (±3mV) initial accuracy, 10ppm/°C tempco, 1.2µVRMS (0.1–10Hz) noise, 8-pin SOIC. | Higher noise floor and looser accuracy - suitable for cost-sensitive applications where 14-bit ENOB suffices. | Choose for non-critical industrial controls where lower cost outweighs 3× higher noise and 3× worse tempco vs. ISL21007CFB830Z. |
Compared with ISL21007CFB830Z, ISL21007CFB825Z offers identical performance at 2.5V for systems already designed around that voltage, while MAX6126AASA30+ trades precision and noise for lower unit cost - making it viable only where 16-bit+ resolution is unnecessary.
Availability
ISL21007CFB830Z is available at Aetrix Electronics and suitable for high-precision data acquisition, portable instrumentation, and battery management systems requiring stable component supply despite its obsolete status - supported via legacy inventory and cross-reference engineering assistance.
Supply support for ISL21007CFB830Z 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 technical support and legacy product documentation for the ISL21007 family. The company specializes in high-reliability analog and mixed-signal ICs for industrial, automotive, and communications markets.
The ISL21007 series was designed specifically for ultra-low-drift, micropower voltage referencing in portable and harsh-environment applications - leveraging FGA technology to overcome limitations of conventional bandgap and buried-zener references.
FAQ
What is the recommended replacement for ISL21007CFB830Z per the official datasheet?
The FN6326 Rev.12.00 datasheet explicitly recommends ISL21007CFB825Z-TK as the replacement for ISL21007CFB830Z. This part shares identical grade (±1.0mV, 5ppm/°C), package (8 Ld SOIC), and operating temperature range (–40°C to +125°C), differing only in nominal output voltage (2.500V vs. 3.000V). ISL21007CFB830Z remains available through Aetrix Electronics' legacy channel for design continuity.
Does ISL21007CFB830Z support adjustable output voltage, and how is it implemented?
Yes, ISL21007CFB830Z supports ±2.5% output adjustment via its TRIM pin (Pin 5). A high-impedance voltage divider - typically a low-tempco potentiometer or digital potentiometer like ISL95810 - is connected between VOUT and GND, with the wiper fed to TRIM. No series resistor is needed due to the pin's high input impedance, enabling precise factory or field calibration without loading the reference output.
What is the maximum capacitive load ISL21007CFB830Z can drive without instability?
ISL21007CFB830Z is not designed to drive heavy capacitive loads. Stability is maintained with ≤1000pF (0.001µF) output capacitance. For larger loads (e.g., 0.01µF), the datasheet recommends adding a noise reduction network: a 2kΩ resistor in series with a 10µF capacitor, placed between VOUT and GND. This preserves stability while improving transient response and broadband noise performance.
How does X-ray exposure affect ISL21007CFB830Z, and what mitigation steps are advised?
X-ray exposure - such as from PCB inspection or airport luggage screening - can permanently shift ISL21007CFB830Z output voltage by up to 10mV. To mitigate: avoid post-assembly X-ray inspection; if unavoidable, shield the device with ≥300µm zinc sheeting or two layers of ½-ounce copper planes; mount near board edge to minimize mechanical stress-induced drift; and verify final VOUT after any radiation exposure.
What is the turn-on settling time specification for ISL21007CFB830Z, and why is it relevant?
ISL21007CFB830Z has a turn-on settling time of 120µs to ±0.1% of final VOUT. This parameter is critical in power-managed systems where the reference must stabilize before ADC conversion begins - especially in microcontroller-based data loggers or sensor nodes using wake-up-on-interrupt architectures. Delaying conversion until after 120µs ensures full accuracy without post-conversion software correction.
ISL21007CFB830Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- FGA™
- Packaging:
- Tube
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 7 mA
- Tolerance:
- ±0.08%
- Temperature Coefficient:
- 5ppm/°C
- Noise - 0.1Hz to 10Hz:
- 4.5µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 3.2V ~ 5.5V
- Current - Supply:
- 150µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ISL21007CFB830Z FAQ
1.How can I place an order for ISL21007CFB830Z through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL21007CFB830Z 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 ISL21007CFB830Z reliable?
The price and inventory of ISL21007CFB830Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL21007CFB830Z is usually 5 days.
3.What payment methods are accepted for ISL21007CFB830Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL21007CFB830Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL21007CFB830Z?
ISL21007CFB830Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL21007CFB830Z 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 ISL21007CFB830Z?
For technical support, including ISL21007CFB830Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL21007CFB830Z requirements.
6.How does Aetrix verify that ISL21007CFB830Z is sourced from the original manufacturer or authorized distributors?
All ISL21007CFB830Z 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 ISL21007CFB830Z meets industry standards.
7.What is the process for return or replacement of ISL21007CFB830Z?
All ISL21007CFB830Z units undergo pre-shipment inspection (PSI). If there is an issue with ISL21007CFB830Z, 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 ISL21007CFB830Z part is unused and in its original packaging.
Return procedure for ISL21007CFB830Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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