Features
- Rail-to-rail output: <10mV
- Below-ground (V-) input capability to -0.5V
- Rail-to-rail input differential voltage range for comparator applications
- Single-supply range: 3V to 40V
- Low current consumption: 850µA
- Low noise voltage: 5.6nV/√Hz
- Low noise current: 355fA/√Hz
- Low input offset voltage: 150µV Max.
- Superb offset voltage temperature drift: 1.2µV/°C, Max.
- Operating temperature range: -55°C to +125°C
- No phase reversal
ISL28118M Functional Diagram
Description
The ISL28118M is a single, low-power precision amplifier optimized for single-supply applications over the extended temperature range of -55°C to +125°C. This device features 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 makes it ideal for single-supply applications where input operation at ground is important. The ISL28118M features low power, low offset voltage, and low temperature drift, making it the ideal choice for applications requiring both high DC accuracy and AC performance. The op amp is designed to operate over a single supply range of 3V to 40V or a split supply voltage range of +1. 8V/-1. 2V to ±20V. The combination of precision and small footprint provides the user with outstanding value and flexibility relative to similar competitive parts. Applications include precision instrumentation, data acquisition, precision power supply controls, and industrial controls. The ISL28118M is offered in the 8 Ld MSOP package and operate over the extended temperature range of -55°C to +125°C.
Parameters
| Attributes | Value |
|---|---|
| Channels (#) | 1 |
| Temp. Range (°C) | -55 to +125°C |
| Bandwidth (MHz) | 4 |
| IBIAS (nA) | -230 |
| IS per Amp (mA) | 0.85 |
| Offset Voltage (Max) (mV) | 0.15 |
| Slew Rate (V/µs) | 1.2 |
| Rail-to-Rail Input | No |
| Rail-to-Rail Output | Yes |
| Single Supply Voltage Range (V) | 3 - 40 |
| Gain Min | 1 |
| IOUT (A) | 0.016 |
| Noise VN (nV/√Hz) | 5.6 |
| AVOL (dB) | 136 |
| CMRR (dB) | 118 |
| PSRR (db) | 124 |
| Enable | No |
| Topology [Rail 1] | VFA |
| VS (Min) (V) | 3 |
| VS (Max) (V) | 40 |
| Thermal Shutdown | No |
| Simulation Model Available | iSim |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) |
|---|---|---|
| MSOP | 3.0 x 3.0 x 0.00 | 8 |
Applications
- Precision instruments
- Medical instrumentation
- Data acquisition
- Power supply control
- Industrial process control
| Part Number | Status | Samples | Stock | RoHS | Package | Budgetary Price (USD) | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) | Country of Assembly | Country of Wafer Fabrication |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ISL28118MUZ | Active | N/A | In Stock | RoHS:EN | MSOP | 1ku | $5.94 | 8# | Tube | 2 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -55 to +125°C | MALAYSIA | USA |
| ISL28118MUZ-T13 | Active | N/A | Out of Stock | RoHS:EN | MSOP | 1ku | $5.94 | 8# | Reel | 2 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -55 to +125°C | MALAYSIA | USA |
| ISL28118MUZ-T7 | Obsolete | N/A | Out of Stock | RoHS:EN | MSOP | 8# | Reel | 2 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -55 to +125°C | |||
| ISL28118MUZ-T7A | Obsolete | N/A | In Stock | RoHS:EN | MSOP | 8# | Reel | 2 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -55 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 263 KB r13an0003eu0100-biasing-op-amps Dec 06, 2019AI-generated Summary: Proper biasing of operational amplifiers is essential to avoid malfunction in AC-coupled circuits. A missing DC bias path causes long stabilization times and potential failures. Adding input resistors to ground provides a DC path for bias currents, minimizing offset errors. For single-supply AC-coupled amplifiers, biasing uses a reference voltage, ideally from a high-PSRR voltage reference or buffered voltage divider, to maintain signal symmetry and reduce noise. Understanding frequency responses of input and feedback components is crucial for setting bandwidth and gain characteristics.
- 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 98 KB PCN12094 Dec 19, 2012
- Product Change NoticePDF 135 KB PCN12084 Oct 15, 2012
- Product Change NoticePDF 117 KB PCN11059 Jun 17, 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 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
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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 263 KB r13an0003eu0100-biasing-op-amps Dec 06, 2019AI-generated Summary: Proper biasing of operational amplifiers is essential to avoid malfunction in AC-coupled circuits. A missing DC bias path causes long stabilization times and potential failures. Adding input resistors to ground provides a DC path for bias currents, minimizing offset errors. For single-supply AC-coupled amplifiers, biasing uses a reference voltage, ideally from a high-PSRR voltage reference or buffered voltage divider, to maintain signal symmetry and reduce noise. Understanding frequency responses of input and feedback components is crucial for setting bandwidth and gain characteristics.
- 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 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 98 KB PCN12094 Dec 19, 2012
- Product Change NoticePDF 135 KB PCN12084 Oct 15, 2012
- Product Change NoticePDF 117 KB PCN11059 Jun 17, 2011
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