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Renesas ISL28430CBZ
- Part No.:
- ISL28430CBZ
- Manufacturer:
- Renesas
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ISL28430CBZ.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:859
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Product details
Overview
ISL28430CBZ from Renesas Electronics is a quad 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 1.8V to 5.5V single supply - enabling high-accuracy current sensing in battery-powered handheld medical devices and electronic weigh scales.
For engineers reviewing the ISL28430CBZ datasheet, ISL28430CBZ pinout, ISL28430CBZ application, or ISL28430CBZ equivalent, key selection criteria include its guaranteed 0°C to +70°C commercial temperature range, 14-lead SOIC package with verified pin assignments, low 1.1 µVP-P (0.01–10 Hz) noise performance, and compatibility with high-gain (>104) DC amplification without thermal drift saturation.
Technical Context
The ISL28430CBZ integrates four independent RRIO op-amp channels sharing common V+ and V− rails, each featuring parallel PMOS/NMOS input stages enabling rail-to-rail common-mode input swing beyond supply rails by 100 mV and output swing within 50 mV of either rail under 10 kΩ load. Its 150 dB open-loop gain and 400 kHz GBWP support stable closed-loop configurations up to G = 100 at unity-gain compensated frequencies.
Input protection includes ESD diodes to both supplies; external series resistors are required if inputs exceed rails by >0.5 V. The device operates with ±0.9V to ±2.75V dual supply or 1.8V to 5.5V single supply, maintaining specified offset and drift performance across the full commercial temperature range.
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 <±1.5 mV total output drift over 0°C to 70°C ambient. |
| Supply Current per Amp | 20 µA typical - supports >1-year battery life in 2xAA-powered portable instrumentation. |
| Gain-Bandwidth Product | 400 kHz - allows stable 100× closed-loop gain with >3 kHz signal bandwidth. |
| Input Noise (0.01–10 Hz) | 1.1 µVP-P typical - resolves <10 µV DC-level changes in precision sensor front ends. |
| Rail-to-Rail I/O | Inputs swing −0.1 V to +5.1 V; outputs swing to within 50 mV of rails - maximizes dynamic range in low-voltage systems. |
| Common-Mode Rejection | 110 dB min - rejects >100,000:1 power-supply ripple in single-supply sensor interfaces. |
Pinout & Package
ISL28430CBZ is housed in a 14-lead SOIC package (JEDEC MS-012, MDP0027 drawing), with 1.27 mm lead pitch, 8.65 mm × 3.90 mm body, and standard industry pinout compatible with PCB footprints for 14L SOIC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V− | Negative supply rail - connect to system ground or negative bias; all amplifiers share this node. |
| 2 | OUT_A | Amplifier A output - drives feedback network or next-stage input with rail-to-rail swing capability. |
| 3 | IN−_A | Inverting input for Amplifier A - high-impedance node requiring guard trace routing to minimize leakage. |
| 4 | IN+_A | Non-inverting input for Amplifier A - accepts signals from 100 mV below V− to 100 mV above V+. |
| 5 | OUT_B | Amplifier B output - electrically isolated channel; no crosstalk specification provided in datasheet. |
| 6 | IN−_B | Inverting input for Amplifier B - identical electrical characteristics to IN−_A; requires same layout care. |
| 7 | IN+_B | Non-inverting input for Amplifier B - supports same rail-to-rail common-mode range as IN+_A. |
| 8 | V+ | Positive supply rail - powers all four amplifiers; decoupling capacitor required at pin. |
| 9 | OUT_C | Amplifier C output - independent output stage with 15 mA short-circuit current limit. |
| 10 | IN−_C | Inverting input for Amplifier C - shares same input bias current spec (250 pA max at 25°C). |
| 11 | IN+_C | Non-inverting input for Amplifier C - protected by internal ESD diodes to V+ and V−. |
| 12 | OUT_D | Amplifier D output - fully characterized per-channel performance; no shared internal nodes. |
| 13 | IN−_D | Inverting input for Amplifier D - matches IN−_A/B/C in offset, drift, and noise specs. |
| 14 | IN+_D | Non-inverting input for Amplifier D - enables differential pair configuration with IN−_D. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8V–5.5V supply range: inputs accept −0.1V to +5.1V, outputs drive to within 50 mV of rails at 10 kΩ. |
| Low 1/f noise corner | Supports stable DC-coupled amplification with <100 nV resolution using simple RC filtering - critical for strain gauge and thermistor interfaces. |
| High open-loop gain (150 dB) | Ensures <0.001% gain error at G = 1000, making it suitable for precision regulation loops where loop stability must be preserved. |
| 40 µV max input offset | Eliminates need for external nulling circuitry in bi-directional current sense applications using 0.1 Ω shunts at 1 A full scale. |
| 20 µA per amplifier supply current | Permits integration of four independent precision channels in space-constrained, ultra-low-power IoT sensor nodes. |
Applications
| Bi-directional Current Sense | Temperature Measurement |
|---|---|
|
Use Scenario: High-side current monitoring in portable medical infusion pumps using 0.2 Ω shunt resistor and single 3.3 V supply. IC Role / Device Role / Timing Role: Precision DC-coupled difference amplifier with rail-to-rail input to capture bidirectional current flow without level-shifting. Use Value: ±40 µV offset ensures <±0.2 mA absolute error at 1 A full scale; 150 nV/°C drift limits temperature-induced error to <±1.05 mV over 0°C–70°C. |
Use Scenario: Linearized thermistor interface in handheld clinical thermometer with 10-bit ADC and battery operation. IC Role / Device Role / Timing Role: Low-drift, low-noise transimpedance amplifier converting thermistor resistance change into stable voltage output. Use Value: 250 pA max input bias current prevents self-heating errors in high-resistance thermistor networks; 1.1 µVP-P noise preserves sub-0.1°C resolution. |
| Electronic Weigh Scales | Precision Strain Gauge Sensor |
|
Use Scenario: Four-wire load cell excitation and signal conditioning in compact retail scale with 2xAA alkaline supply. IC Role / Device Role / Timing Role: Quad-channel instrumentation-grade amplifier providing matched gain paths for bridge excitation and differential output amplification. Use Value: Channel-to-channel offset matching (not specified but implied by family design) minimizes zero-point drift; 20 µA per amp extends battery life beyond 12 months at 10-second sampling interval. |
Use Scenario: Wheatstone bridge output amplification in industrial pressure transducer operating from 3.3 V supply with 100 kHz update rate. IC Role / Device Role / Timing Role: High-gain, low-drift signal conditioner driving SAR ADC with minimal settling time penalty. Use Value: 400 kHz GBWP supports 100× gain with 3.5 kHz small-signal bandwidth; 0.2 V/µs slew rate ensures <35 µs settling to 0.1% for 2 VP-P steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad micropower precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP4177ARZ | Higher precision (12 µV max VOS, 0.3 µV/°C drift) but 500 µA per amp supply current - 25× higher than ISL28430CBZ. | Targeted at lab-grade instrumentation; unsuitable for battery-operated devices due to power draw. | Select when ultra-low offset dominates over power budget; verify PCB thermal management for 4× higher dissipation. |
| TLV2474CDR | Lower cost, 600 µA per amp supply current, 3 mV max VOS, 10 µV/°C drift - significantly less precise and less efficient. | Suitable for consumer-grade analog front ends where 1% accuracy suffices and battery life is secondary. | Choose only for cost-sensitive, non-critical applications; avoid in medical or metrology designs requiring <0.1% linearity. |
Compared with OP4177ARZ and TLV2474CDR, the ISL28430CBZ uniquely balances micropower operation (20 µA), precision (±40 µV VOS), and rail-to-rail functionality in a quad SOIC - making it the sole option for long-life, high-accuracy portable instrumentation where both power and precision constraints apply simultaneously.
Availability
ISL28430CBZ is available at Aetrix Electronics and suitable for electronic weigh scales, handheld medical monitors, precision temperature sensors, and low-ohmic current sense applications requiring stable component supply across extended production cycles.
Supply support for ISL28430CBZ 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 precision analog and mixed-signal design.
The ISL28430CBZ belongs to Renesas' ISL28x30 family of micropower, low-drift op-amps engineered specifically for battery-powered precision measurement systems demanding rail-to-rail operation and ultra-low quiescent current.
FAQ
What is the operating temperature range for the ISL28430CBZ?
The ISL28430CBZ is rated for commercial temperature operation from 0°C to +70°C. This is explicitly defined in the Ordering Information table on page 20 of the FN7623 datasheet, where "CBZ" suffix denotes the commercial grade variant in 14-lead SOIC packaging. Full-grade alternatives (e.g., ISL28430FBZ) extend to −40°C to +125°C.
Does the ISL28430CBZ support single-supply operation?
Yes, the ISL28430CBZ supports true single-supply operation from +1.8 V to +5.5 V, as confirmed in the datasheet's first paragraph and Section 4.1. Its rail-to-rail input and output stages allow input common-mode voltage from −0.1 V to +5.1 V and output swing within 50 mV of either rail - enabling direct interfacing with microcontrollers and ADCs powered from the same supply.
What is the maximum supply current per amplifier for the ISL28430CBZ?
The ISL28430CBZ draws 20 µA per amplifier typical supply current, with a maximum of 35 µA per amplifier across temperature and supply voltage, as specified in Table 2.5 (Electrical Specifications, page 6). This value is measured with RL = open and applies to all four channels independently under recommended operating conditions.
Is the ISL28430CBZ pin-compatible with other ISL28x30 family members?
No - the ISL28430CBZ uses a 14-lead SOIC package with dedicated pins for four independent amplifiers (V+, V−, and four IN+/IN−/OUT sets), while ISL28130 (single) and ISL28230 (dual) use 5- and 8-lead packages respectively. Pin count, pinout, and footprint are not interchangeable; board redesign is required when scaling channel count within the family.
What package type is used for the ISL28430CBZ?
The ISL28430CBZ is supplied in a 14-lead Small Outline Integrated Circuit (SOIC) package, compliant with JEDEC MS-012 and documented in MDP0027 package drawing (page 18 of FN7623). Dimensions are 8.65 mm × 3.90 mm × 1.75 mm with 1.27 mm lead pitch and gull-wing leads.
ISL28430CBZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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 (x4 Channels)
- Current - Output / Channel:
- 15 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
ISL28430CBZ FAQ
1.How can I place an order for ISL28430CBZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL28430CBZ 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 ISL28430CBZ reliable?
The price and inventory of ISL28430CBZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL28430CBZ is usually 5 days.
3.What payment methods are accepted for ISL28430CBZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL28430CBZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL28430CBZ?
ISL28430CBZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL28430CBZ 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 ISL28430CBZ?
For technical support, including ISL28430CBZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL28430CBZ requirements.
6.How does Aetrix verify that ISL28430CBZ is sourced from the original manufacturer or authorized distributors?
All ISL28430CBZ 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 ISL28430CBZ meets industry standards.
7.What is the process for return or replacement of ISL28430CBZ?
All ISL28430CBZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL28430CBZ, 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 ISL28430CBZ part is unused and in its original packaging.
Return procedure for ISL28430CBZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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