Features
- Single or dual supply, rail-to-rail output and below ground (V-) input capability
- Rail-to-rail input differential voltage range for comparator applications
- Single supply range: 3V to 40V
- Low current consumption (VS = ±5V): 165µA
- Low noise voltage: 15.8nV/√Hz
- Low noise current: 80fA/√Hz
- Low input offset voltage (ISL28108): 150µV
- Superb temperature drift - Voltage offset TC: 0.1µV/°C, Typ
- Low input bias current: -13nA Typ
- Operating temperature range: -40°C to +125°C
- No phase reversal
ISL28108_ISL28x08 Functional Diagram
Description
The ISL28108, ISL28208 and ISL28408 are single, dual and quad low power precision amplifiers optimized for single supply applications. These devices feature a common mode input voltage range extending to 0. 5V below the V- rail, a rail-to-rail differential input voltage range for use as a comparator, and rail-to-rail output voltage swing, which make them ideal for single supply applications where input operation at ground is important. Added features include low offset voltage, and low temperature drift making them the ideal choice for applications requiring high DC accuracy. The output stage is capable of driving large capacitive loads from rail-to-rail for excellent ADC driving performance. The devices can operate for single or dual supply from 3V (±1. 5V) to 40V (±20V) and are fully characterized at ±5V and ±15V. The combination of precision, low power, and small footprint provide the user with outstanding value and flexibility relative to similar competitive parts. Applications for these amplifiers include precision instrumentation, data acquisition, precision power supply control, and industrial control. The ISL28108 single is offered in 8 Ld TDFN, MSOP and SOIC packages. The ISL28208 dual amplifier is offered in 8 Ld TDFN, MSOP, and SOIC packages. The ISL28408 is offered in 14 Ld SOIC package. All devices are offered in standard pin configurations and operate over the extended temperature range of -40°C to +125°C.
Applications
- Precision instruments
- Medical instrumentation
- Data acquisition
- Power supply control
- Industrial process control
| Part Number | Status | Samples | Stock | RoHS | Package | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ISL28408FBZ | Obsolete | N/A | In Stock | RoHS:EN | SOICN | 14# | Tube | 2 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +125°C |
| ISL28408FBZ-T13 | Obsolete | N/A | Out of Stock | RoHS:EN | SOICN | 14# | Reel | 2 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +125°C |
| ISL28408FBZ-T7 | Obsolete | N/A | Out of Stock | RoHS:EN | SOICN | 14# | Reel | 2 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +125°C |
| ISL28408FBZ-T7A | Obsolete | N/A | Out of Stock | RoHS:EN | SOICN | 14# | Reel | 2 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +125°C |
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- TrainingPDF 162 KB R13TB0003EU0100 Rev.1.00 Dec 12, 2023
- Application NotePDF 381 KB R13AN0015EU0100 Rev.1.00 May 16, 2022AI-generated Summary: Low-voltage precision operational amplifiers from Renesas feature ultra-low input offset voltages with on-chip auto-zeroing, ideal for precise sensor signal conditioning in compact applications. Key design considerations include minimizing thermoelectric (Seebeck) voltages caused by PCB junctions and temperature gradients, which can introduce offset errors amplified by high gain. Techniques such as using dummy resistors, maintaining uniform PCB temperature with ground planes, and employing guard rings reduce these errors. The ISL28134 supports precision high-side current sensing with adaptations for high-voltage systems using level shifting via Zener diodes. Output current can be increased by adding an NPN transistor as a current booster, ensuring linear operation within voltage limits. The document provides detailed circuit examples and design guidelines for optimizing performance and minimizing errors in low-voltage op-amp applications.
- Application NotePDF 564 KB an1993 May 22, 2018AI-generated Summary: Voltage feedback (VFB) amplifiers use a differential input pair, a high-impedance stage, and an output buffer to convert input voltage differences into output voltage. The VFB amplifier's gain decreases at a dominant pole frequency due to compensation capacitors. Current feedback (CFB) amplifiers include a class AB input amplifier, current mirror, high-impedance stage, and output buffer. CFB amplifiers provide faster switching and higher slew rates by drawing charge/discharge currents directly from supply rails, unlike VFB amplifiers which are limited by biasing current sources.
- Product Change NoticePDF 372 KB PCN12085B Feb 05, 2014
- Product Change NoticePDF 152 KB PCN12085 Nov 07, 2012
- Product Change NoticePDF 135 KB PCN12084 Oct 15, 2012
- DatasheetISL28108, ISL28208, ISL28408 DatasheetRECOMMENDEDPDF 1.95 MB isl28108-208-408 Sep 28, 2011
- Application NotePDF 357 KB an1694 Jan 19, 2004AI-generated Summary: The document outlines the four fundamental internal blocks of an operational amplifier and presents a simple 2:1 stage circuit diagram. It includes important legal notices from Renesas Electronics regarding the use, liability, and intellectual property rights of their semiconductor products. The document clarifies product quality grades, intended applications, and restrictions on use in life-critical or hazardous systems. It emphasizes compliance with applicable laws and safety responsibilities when using Renesas products. Contact information for Renesas sales offices worldwide is also provided.
- Application NotePDF 286 KB an1107 Apr 15, 2003AI-generated Summary: The document outlines important legal and usage notices for semiconductor products, emphasizing user responsibility for product design and safety. It disclaims liability for damages from improper use, modification, or non-compliance with laws. Products are classified into Standard and High Quality grades, with specific application guidelines. Users must follow latest product specifications and ensure safety measures against failures. Export control and environmental regulations compliance is mandatory. Unauthorized reproduction of the document is prohibited.
- Application NotePDF 843 KB an535 Jun 05, 2002AI-generated Summary: A Data Acquisition System (DAS) requires careful design of signal conditioning, transducer selection, and signal transmission to ensure high accuracy. Signal conditioning includes multiplexing, amplification, filtering, and calibration, ideally performed near the transducer. Transducers convert physical variables to electrical signals, often voltage, with low source resistance preferred. Signal paths can be single-ended or differential; differential paths better reject common mode noise, especially for low-level signals. Shielded twisted pairs and balanced lines reduce interference. Filters, typically Butterworth low-pass, prevent aliasing and maintain signal integrity.
- Technical BriefPDF 405 KB tb512 Mar 14, 2018
- DatasheetISL28108, ISL28208, ISL28408 DatasheetRECOMMENDEDPDF 1.95 MB isl28108-208-408 Sep 28, 2011
Recommended Documents (1)
- DatasheetISL28108, ISL28208, ISL28408 DatasheetRECOMMENDEDPDF 1.95 MB isl28108-208-408 Sep 28, 2011
Datasheets (1)
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- Application NotePDF 381 KB R13AN0015EU0100 Rev.1.00 May 16, 2022AI-generated Summary: Low-voltage precision operational amplifiers from Renesas feature ultra-low input offset voltages with on-chip auto-zeroing, ideal for precise sensor signal conditioning in compact applications. Key design considerations include minimizing thermoelectric (Seebeck) voltages caused by PCB junctions and temperature gradients, which can introduce offset errors amplified by high gain. Techniques such as using dummy resistors, maintaining uniform PCB temperature with ground planes, and employing guard rings reduce these errors. The ISL28134 supports precision high-side current sensing with adaptations for high-voltage systems using level shifting via Zener diodes. Output current can be increased by adding an NPN transistor as a current booster, ensuring linear operation within voltage limits. The document provides detailed circuit examples and design guidelines for optimizing performance and minimizing errors in low-voltage op-amp applications.
- Application NotePDF 564 KB an1993 May 22, 2018AI-generated Summary: Voltage feedback (VFB) amplifiers use a differential input pair, a high-impedance stage, and an output buffer to convert input voltage differences into output voltage. The VFB amplifier's gain decreases at a dominant pole frequency due to compensation capacitors. Current feedback (CFB) amplifiers include a class AB input amplifier, current mirror, high-impedance stage, and output buffer. CFB amplifiers provide faster switching and higher slew rates by drawing charge/discharge currents directly from supply rails, unlike VFB amplifiers which are limited by biasing current sources.
- Application NotePDF 357 KB an1694 Jan 19, 2004AI-generated Summary: The document outlines the four fundamental internal blocks of an operational amplifier and presents a simple 2:1 stage circuit diagram. It includes important legal notices from Renesas Electronics regarding the use, liability, and intellectual property rights of their semiconductor products. The document clarifies product quality grades, intended applications, and restrictions on use in life-critical or hazardous systems. It emphasizes compliance with applicable laws and safety responsibilities when using Renesas products. Contact information for Renesas sales offices worldwide is also provided.
- Application NotePDF 286 KB an1107 Apr 15, 2003AI-generated Summary: The document outlines important legal and usage notices for semiconductor products, emphasizing user responsibility for product design and safety. It disclaims liability for damages from improper use, modification, or non-compliance with laws. Products are classified into Standard and High Quality grades, with specific application guidelines. Users must follow latest product specifications and ensure safety measures against failures. Export control and environmental regulations compliance is mandatory. Unauthorized reproduction of the document is prohibited.
- Application NotePDF 843 KB an535 Jun 05, 2002AI-generated Summary: A Data Acquisition System (DAS) requires careful design of signal conditioning, transducer selection, and signal transmission to ensure high accuracy. Signal conditioning includes multiplexing, amplification, filtering, and calibration, ideally performed near the transducer. Transducers convert physical variables to electrical signals, often voltage, with low source resistance preferred. Signal paths can be single-ended or differential; differential paths better reject common mode noise, especially for low-level signals. Shielded twisted pairs and balanced lines reduce interference. Filters, typically Butterworth low-pass, prevent aliasing and maintain signal integrity.
Application Notes & White Papers (5)
- Product Change NoticePDF 372 KB PCN12085B Feb 05, 2014
- Product Change NoticePDF 152 KB PCN12085 Nov 07, 2012
- Product Change NoticePDF 135 KB PCN12084 Oct 15, 2012
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- TrainingPDF 162 KB R13TB0003EU0100 Rev.1.00 Dec 12, 2023
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- Technical BriefPDF 405 KB tb512 Mar 14, 2018
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