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Renesas ISL28230FUZ
- Part No.:
- ISL28230FUZ
- Manufacturer:
- Renesas
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL28230FUZ.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,175
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Product details
Overview
ISL28230FUZ from Renesas Electronics is a dual micropower, rail-to-rail input/output operational amplifier optimized for precision DC-coupled applications. It delivers 40 µV max input offset voltage, 150 nV/°C max offset drift, 20 µA per amplifier quiescent current, and 400 kHz gain-bandwidth across ±0.9V to ±2.75V or +1.8V to +5.5V supply ranges - enabling high-accuracy current sensing and strain gauge amplification in battery-powered medical and industrial instrumentation.
For engineers reviewing the ISL28230FUZ datasheet, ISL28230FUZ pinout, ISL28230FUZ application, or ISL28230FUZ equivalent, this page provides verified package mapping (8-lead MSOP), confirmed rail-to-rail I/O behavior, validated low-noise performance (1.1 µVP-P, 0.01–10 Hz), and two field-tested alternative op amps with documented functional trade-offs for low-drift, micropower signal conditioning.
Technical Context
The ISL28230FUZ implements a CMOS RRIO architecture with parallel PMOS/NMOS input stages enabling rail-to-rail common-mode input range (–0.1 V to 5.1 V at 5 V supply) and output swing within 50 mV of either rail into 10 kΩ. Its 150 dB open-loop gain and 1.1 µVP-P low-frequency noise support stable high-gain DC amplification without external chopper stabilization.
Input bias current remains ≤250 pA over 0°C to +70°C, and thermal drift of offset voltage is tightly bounded at ±150 nV/°C - critical for unattended temperature-varying sensor front ends. The device operates reliably across full-grade –40°C to +125°C when selected as ISL28230FRZ/FRZ variants, but ISL28230FUZ is specified for 0°C to +70°C commercial operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±40 µV max - enables <100 µV system-level DC error in 10× gain configurations without trimming. |
| Offset Drift | 150 nV/°C max - limits temperature-induced output drift to ≤1.5 mV over 100°C ambient shift at G=100. |
| Supply Current | 20 µA per amplifier typical - supports >1-year battery life in 2xAA-powered handheld sensors. |
| Gain-Bandwidth | 400 kHz - sustains stable closed-loop gain ≥100 up to ~3 kHz for anti-aliasing filter integration. |
| Input Noise | 1.1 µVP-P (0.01–10 Hz) - resolves sub-µV DC signals in precision weigh scale and thermopile interfaces. |
| Rail-to-Rail I/O | Input: –0.1 V to VCC + 0.1 V; Output: within 50 mV of rails into 10 kΩ - maximizes dynamic range at low supply voltages. |
| CMRR / PSRR | 110 dB / 105 dB min - rejects supply ripple and common-mode interference in noisy industrial environments. |
Pinout & Package
ISL28230FUZ is housed in an 8-lead MSOP package (JEDEC MO-187-AA, drawing M8.118A), with exposed paddle connected to V– for thermal enhancement. Pin 1 is marked by a dot or notch; the package measures 3.0 mm × 3.0 mm × 1.1 mm and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT_A | Amplifier A output - drives feedback network or next-stage input; rail-to-rail swing capability reduces headroom loss. |
| 2 | IN–_A | Inverting input of Amp A - high-impedance node (≤250 pA bias); requires guard ring layout for <100 pA leakage paths. |
| 3 | IN+_A | Non-inverting input of Amp A - accepts signals from 100 mV beyond either supply rail; no internal clamp diodes. |
| 4 | V– | Negative supply terminal - connects to system ground (single supply) or negative rail (dual supply); ties to exposed paddle. |
| 5 | V+ | Positive supply terminal - accepts 1.8–5.5 V (single) or ±0.9–±2.75 V (dual); decoupling capacitor required at pin. |
| 6 | IN+_B | Non-inverting input of Amp B - electrically isolated from Amp A; shares same V+ and V– rails. |
| 7 | IN–_B | Inverting input of Amp B - identical bias and ESD protection characteristics as IN–_A. |
| 8 | OUT_B | Amplifier B output - independent channel for differential pair, reference buffer, or dual-sensor interface. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input | Accepts common-mode signals from V– – 0.1 V to V+ + 0.1 V - eliminates level-shifting circuitry in single-supply sensor nodes. |
| Low 1/f noise corner | Sub-1 Hz corner frequency enables stable DC amplification without chopper artifacts or complex filtering. |
| High open-loop gain | 150 dB minimum - ensures <0.01% gain error at G=1000 and supports precise closed-loop transfer functions. |
| ESD robustness | 4 kV HBM rating - withstands handling and board-level ESD events without latch-up or parameter shift. |
| Thermal stability | 150 nV/°C max TCVOS - maintains calibration integrity over industrial temperature excursions without active compensation. |
Applications
| Bi-directional Current Sense | Temperature Measurement |
|---|---|
Use Scenario: High-side current monitoring in portable medical infusion pumps using 0.1 Ω shunt resistors. IC Role / Device Role / Timing Role: Precision DC-coupled difference amplifier with rail-to-rail inputs referenced to VBAT. Use Value: ±40 µV offset enables detection of <1 mA load current at 5 V supply with <2% full-scale error before calibration. |
Use Scenario: Linearized RTD bridge readout in handheld environmental monitors operating from Li-ion cells. IC Role / Device Role / Timing Role: Low-drift instrumentation amplifier front end with matched gain-setting resistors. Use Value: 150 nV/°C drift contributes <0.15 °C error over 100°C span - meets Class A RTD accuracy requirements. |
| Electronic Weigh Scales | Precision Strain Gauge Sensor |
Use Scenario: Battery-powered retail scale with 350 Ω load cell and 24-bit sigma-delta ADC. IC Role / Device Role / Timing Role: First-stage gain amplifier driving ADC reference and input buffers. Use Value: 1.1 µVP-P noise allows resolution of <10 µV bridge outputs - supports 100,000-count display fidelity. |
Use Scenario: Structural health monitoring node measuring microstrain on composite aircraft components. IC Role / Device Role / Timing Role: Low-power, low-drift signal conditioner for quarter-bridge Wheatstone configurations. Use Value: 20 µA per amplifier extends node lifetime to >5 years on coin-cell power while preserving <0.05% linearity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-drift, micropower op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX44260ASA+ | Lower offset (10 µV max) but higher quiescent current (65 µA); 1.5 µVP-P noise (0.1–10 Hz). | Better DC accuracy at cost of 3.25× higher supply current - suitable only where battery life >6 months is not required. | Select MAX44260ASA+ if offset-critical calibration dominates power budget; verify thermal derating at >85°C ambient. |
| LTC2050CMS8#PBF | Zero-drift architecture (0.015 µV/°C), but 170 µA supply current and 1.5 µVP-P noise (0.1–10 Hz). | Superior long-term drift stability at expense of 8.5× higher current - viable only in AC-powered or short-duty-cycle systems. | Choose LTC2050CMS8#PBF only for metrology-grade zero-drift needs; confirm PCB layout accommodates chopper artifacts. |
Compared with MAX44260ASA+ and LTC2050CMS8#PBF, the ISL28230FUZ offers the optimal balance of micropower operation (20 µA), low drift (150 nV/°C), and proven rail-to-rail functionality - making it the preferred choice for battery-constrained, wide-temperature industrial sensor interfaces where moderate DC accuracy suffices.
Availability
ISL28230FUZ is available at Aetrix Electronics and suitable for bi-directional current sense, electronic weigh scales, temperature measurement, and precision strain gauge sensor applications requiring stable component supply across commercial temperature grades.
Supply support for ISL28230FUZ 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 is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with deep expertise in analog, mixed-signal, and power management ICs.
The ISL28230FUZ belongs to Renesas' ISL28x30 precision op amp family, engineered specifically for ultra-low-power, high-accuracy signal conditioning in portable and remote sensor systems operating from single-cell batteries or low-voltage rails.
FAQ
What is the operating temperature range for ISL28230FUZ?
The ISL28230FUZ is rated for commercial-grade operation from 0°C to +70°C. It is not qualified for extended temperature ranges; for –40°C to +125°C applications, Renesas specifies the ISL28230FRZ (DFN) or ISL28230FBZ (SOIC) variants. Always verify ambient and junction temperature limits against your PCB's thermal profile before final design sign-off.
Does ISL28230FUZ support true rail-to-rail input and output?
Yes, ISL28230FUZ supports rail-to-rail input (–0.1 V to VCC + 0.1 V) and output (within 50 mV of either rail into 10 kΩ). This is achieved via complementary PMOS/NMOS input pairs and common-source output stage - confirmed in datasheet Sections 4.2 and 2.5. No external level-shifting circuitry is needed for single-supply sensor interfaces.
What is the maximum supply voltage for ISL28230FUZ?
The absolute maximum supply voltage (V+ to V–) for ISL28230FUZ is 6.5 V, per Section 2.1 of the FN7623 datasheet. Recommended operating range is +1.8 V to +5.5 V (single supply) or ±0.9 V to ±2.75 V (dual supply). Exceeding 6.5 V risks permanent damage, even momentarily.
Can ISL28230FUZ drive capacitive loads directly?
ISL28230FUZ is stable with capacitive loads ≤3.7 pF per Figure 14 in the datasheet. For larger loads (e.g., ADC input capacitance), a series isolation resistor (≥100 Ω) must be placed between OUT and CL to maintain phase margin. Uncompensated 100 pF loads cause peaking and potential oscillation.
Is ISL28230FUZ pin-compatible with other ISL28230 variants?
Yes - all ISL28230 variants (CBZ, CUZ, CRZ, FBZ, FRZ, FUZ) share identical 8-pin functional pinouts across SOIC, MSOP, and DFN packages. ISL28230FUZ (MSOP) uses the same pin 1–8 assignments as ISL28230CUZ and ISL28230CRZ, enabling direct footprint reuse when migrating between packages or temperature grades.
ISL28230FUZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.2V/µs
- Gain Bandwidth Product:
- 400 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 250 pA
- Voltage - Input Offset:
- 5 µV
- Current - Supply:
- 20µA (x2 Channels)
- Current - Output / Channel:
- 15 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
ISL28230FUZ FAQ
1.How can I place an order for ISL28230FUZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL28230FUZ 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 ISL28230FUZ reliable?
The price and inventory of ISL28230FUZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL28230FUZ is usually 5 days.
3.What payment methods are accepted for ISL28230FUZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL28230FUZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL28230FUZ?
ISL28230FUZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL28230FUZ 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 ISL28230FUZ?
For technical support, including ISL28230FUZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL28230FUZ requirements.
6.How does Aetrix verify that ISL28230FUZ is sourced from the original manufacturer or authorized distributors?
All ISL28230FUZ 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 ISL28230FUZ meets industry standards.
7.What is the process for return or replacement of ISL28230FUZ?
All ISL28230FUZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL28230FUZ, 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 ISL28230FUZ part is unused and in its original packaging.
Return procedure for ISL28230FUZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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