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Renesas ISL28230FBZ
- Part No.:
- ISL28230FBZ
- Manufacturer:
- Renesas
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ISL28230FBZ.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,929
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Product details
Overview
ISL28230FBZ from Renesas Electronics is a dual micropower, low-offset-drift operational amplifier optimized for precision DC-coupled signal conditioning in single-supply (1.8V–5.5V) or dual-supply (±0.9V–±2.75V) systems. It delivers 40 µV max input offset voltage, 150 nV/°C max offset drift, 20 µA per amplifier quiescent current, rail-to-rail input/output swing, and 400 kHz gain-bandwidth - enabling high-accuracy current sensing and sensor front-ends in battery-powered medical and industrial equipment.
For engineers reviewing the ISL28230FBZ datasheet, ISL28230FBZ pinout, ISL28230FBZ application, or ISL28230FBZ equivalent, key selection criteria include its full-grade temperature range (−40°C to +125°C), SOIC-8 package compatibility with legacy layouts, ultra-low 1/f noise (1.1 µVP-P, 0.01Hz–10Hz), and guaranteed rail-to-rail operation at 1.8V supply - critical for low-voltage strain gauge and precision regulation designs.
Technical Context
The ISL28230FBZ employs a CMOS RRIO architecture with parallel PMOS/NMOS input stages enabling true rail-to-rail common-mode input range (−0.1V to 5.1V at VS = 5V) and output swing within 50 mV of either rail under 10 kΩ load. Its 150 dB open-loop gain and 110 dB CMRR ensure stable high-gain DC amplification without thermal drift-induced saturation.
Internal ESD protection diodes clamp inputs to V+ and V− rails, supporting ±4 kV HBM robustness. The device operates with no external compensation required across its specified load capacitance range (≤3.7 pF), and its 0.2 V/µs positive slew rate supports accurate step response in bi-directional current sense applications up to 35 µs settling time (0.1%, 2 VP-P).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±40 µV max - enables sub-mV DC error in 100× gain circuits without trimming. |
| Offset Drift | 150 nV/°C max - ensures <±0.4 mV total drift over −40°C to +125°C operating range. |
| Supply Current | 20 µA per amplifier - allows continuous operation on coin-cell or Li-ion batteries for >1 year. |
| Gain-Bandwidth Product | 400 kHz - supports stable closed-loop gains up to 100× at DC with minimal phase margin loss. |
| Input Noise (0.01–10 Hz) | 1.1 µVP-P typical - resolves <10 µV DC signals in high-gain analog front ends. |
| Rail-to-Rail Output Swing | Within 50 mV of V− and 4.95 V of V+ at 5 V supply - maximizes dynamic range in low-voltage systems. |
| Common-Mode Rejection | 110 dB min - rejects power supply ripple and ground bounce in noisy industrial environments. |
Pinout & Package
ISL28230FBZ is housed in an 8-lead SOIC package (JEDEC MS-012, M8.15E drawing) with standard pinout compatible with industry-wide PCB footprints. Thermal resistance θJA = 125°C/W enables operation at full temperature range without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT_A) | Amplifier A output | Drives loads down to 10 kΩ while maintaining rail-to-rail swing and <35 µs settling. |
| 2 (IN−_A) | Amplifier A inverting input | High-impedance node (250 pA max bias) requiring guard traces in µV-level sensor interfaces. |
| 3 (IN+_A) | Amplifier A non-inverting input | Accepts common-mode voltages from −0.1V to 5.1V at 5V supply; no internal clamping diodes. |
| 4 (V−) | Negative supply rail | Connect to GND (single supply) or negative rail; thermal pad not present in SOIC variant. |
| 5 (V+) | Positive supply rail | Accepts 1.8V–5.5V; powers both amplifiers; decoupling capacitor required within 1 cm. |
| 6 (IN+_B) | Amplifier B non-inverting input | Independent high-Z input; matches IN+_A performance for dual-channel differential sensing. |
| 7 (IN−_B) | Amplifier B inverting input | Matches IN−_A specs; enables matched dual-path signal conditioning without inter-channel crosstalk. |
| 8 (OUT_B) | Amplifier B output | Electrically isolated from OUT_A; crosstalk <−140 dB at 1 kHz per datasheet Figure 18. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input/output | Enables full-scale signal utilization at 1.8V supply - eliminates level-shifting circuitry in portable devices. |
| Ultra-low 1/f noise | 1.1 µVP-P (0.01–10 Hz) supports stable DC amplification of thermocouple or bridge outputs without chopper artifacts. |
| Full-temperature-grade operation | Specified over −40°C to +125°C - qualified for automotive cabin modules and industrial motor control feedback loops. |
| Low input bias current | 250 pA max at +25°C - preserves accuracy in high-impedance pH or photodiode sensor interfaces. |
| High open-loop gain | 150 dB - ensures <0.01% gain error in unity-gain buffer configurations with 10 kΩ load. |
Applications
| Bi-directional Current Sense | Temperature Measurement |
|---|---|
Use Scenario: High-side current monitoring in battery management systems using 0.2 Ω shunt resistor. IC Role / Device Role / Timing Role: Precision DC-coupled difference amplifier with rail-to-rail output driving ADC reference input. Use Value: ±40 µV offset ensures <±0.1 mA measurement error at 1 A full scale; 150 nV/°C drift limits thermal error to <±0.3 mA over full temperature range. |
Use Scenario: Linearization and amplification of RTD or thermistor bridge outputs in HVAC controllers. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier front-end with matched dual channels for ratiometric sensing. Use Value: 1.1 µVP-P noise enables resolution of <0.01°C temperature changes; 20 µA supply current extends battery life in wireless sensor nodes. |
| Medical Equipment | Precision Regulation |
Use Scenario: ECG electrode signal conditioning with high common-mode rejection in portable monitors. IC Role / Device Role / Timing Role: Dual-channel, low-input-bias amplifier for right-leg drive and lead-off detection circuits. Use Value: 250 pA input bias prevents electrode polarization errors; 110 dB CMRR suppresses 50/60 Hz interference without notch filters. |
Use Scenario: Feedback loop amplifier in low-noise LDO regulators for FPGA core supplies. IC Role / Device Role / Timing Role: Error amplifier with rail-to-rail output driving pass transistor gate in 1.2 V output regulators. Use Value: 400 kHz GBW supports fast transient response; rail-to-rail swing ensures full control range across input voltage variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Lower offset (10 µV max) but higher quiescent current (17 µA vs ISL28230FBZ's 20 µA per amp); same SOIC-8 package. | Preferred for ultra-low-offset DC applications where supply current is secondary to accuracy. | Select OPA2333AIDR when <10 µV offset is mandatory and full −40°C to +125°C range is not required (OPA2333AIDR rated 0°C to +70°C only). |
| AD8638ARZ-REEL7 | Higher offset drift (250 nV/°C vs 150 nV/°C); same 20 µA supply current; SOIC-8 package. | Suitable for commercial-grade instrumentation where cost is prioritized over extended temperature stability. | Choose AD8638ARZ-REEL7 for cost-sensitive designs operating strictly within 0°C to +70°C ambient. |
Compared with OPA2333AIDR and AD8638ARZ-REEL7, the ISL28230FBZ uniquely balances full-temperature-range operation, ultra-low 1/f noise, and rail-to-rail functionality at 20 µA supply - making it optimal for battery-powered precision systems requiring long-term stability without calibration.
Availability
ISL28230FBZ is available at Aetrix Electronics and suitable for medical instrumentation, industrial sensor interfaces, and battery-powered test equipment requiring stable component supply across −40°C to +125°C operating conditions.
Supply support for ISL28230FBZ 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 microcontrollers, analog power, and SoC solutions for automotive, industrial, and IoT markets.
The ISL28230FBZ belongs to Renesas' ISL28x30 precision op amp family, designed specifically for micropower, low-drift, rail-to-rail signal conditioning in space-constrained, battery-operated, and high-reliability systems.
FAQ
What is the operating temperature range for ISL28230FBZ?
The ISL28230FBZ is a full-grade device rated for continuous operation from −40°C to +125°C. This specification is validated per datasheet FN7623 Rev. 8.00 and applies to all electrical parameters including input offset voltage, offset drift, and supply current - making ISL28230FBZ suitable for under-hood automotive and industrial control applications.
Does ISL28230FBZ support single-supply operation at 1.8V?
Yes, ISL28230FBZ is fully specified for single-supply operation from 1.8V to 5.5V. At 1.8V, it maintains rail-to-rail input common-mode range (−0.1V to 1.9V), output swing within 50 mV of each rail, and 40 µV max input offset - confirmed in Table 2.5 of FN7623 datasheet under "DC Specifications" with V+ = 1.8V condition.
What package type is used for ISL28230FBZ?
ISL28230FBZ uses an 8-lead SOIC package conforming to JEDEC MS-012 and Renesas drawing M8.15E. It features standard 1.27 mm pitch, 4.90 mm × 3.90 mm body dimensions, and is supplied in tube packaging - identical footprint to legacy SOIC-8 op amps for drop-in replacement in existing designs.
How does ISL28230FBZ achieve rail-to-rail input capability?
ISL28230FBZ implements a CMOS RRIO input stage with parallel PMOS and NMOS differential pairs, allowing the input common-mode voltage to extend 100 mV beyond either supply rail. Unlike conventional op amps with back-to-back clamp diodes, this architecture preserves high input impedance (>1 TΩ) even at over-rail conditions - critical for precision sensor interfaces.
Is ISL28230FBZ pin-compatible with other devices in the ISL28x30 family?
Yes, ISL28230FBZ shares identical pinout with ISL28230CBZ (commercial grade) and ISL28230FUZ (MSOP-8 variant has different pinout). All SOIC-8 versions - including ISL28230FBZ, ISL28230CBZ, and ISL28230CUZ - use the same 1–8 pin assignment for OUT_A, IN−_A, IN+_A, V−, V+, IN+_B, IN−_B, and OUT_B per datasheet page 3.
ISL28230FBZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-SOIC
ISL28230FBZ FAQ
1.How can I place an order for ISL28230FBZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL28230FBZ 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 ISL28230FBZ reliable?
The price and inventory of ISL28230FBZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL28230FBZ is usually 5 days.
3.What payment methods are accepted for ISL28230FBZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL28230FBZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL28230FBZ?
ISL28230FBZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL28230FBZ 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 ISL28230FBZ?
For technical support, including ISL28230FBZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL28230FBZ requirements.
6.How does Aetrix verify that ISL28230FBZ is sourced from the original manufacturer or authorized distributors?
All ISL28230FBZ 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 ISL28230FBZ meets industry standards.
7.What is the process for return or replacement of ISL28230FBZ?
All ISL28230FBZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL28230FBZ, 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 ISL28230FBZ part is unused and in its original packaging.
Return procedure for ISL28230FBZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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