Overview
Description
The ISL28134 is a single, chopper-stabilized zero drift operational amplifier optimized for single and dual supply operation from 2. 25V to 6. 0V and ±1. 125V and ±3. 0V. The ISL28134 uses auto-correction circuitry to provide very low input offset voltage, drift and a reduction of the 1/f noise corner below 0. 1Hz. The ISL28134 achieves ultra low offset voltage, offset temperature drift, wide gain bandwidth and rail-to-rail input/output swing while minimizing power consumption. The ISL28134 is ideal for amplifying the sensor signals of analog front-ends that include pressure, temperature, medical, strain gauge and inertial sensors down to the µV levels. The ISL28134 can be used over standard amplifiers with high stability over the industrial temperature range of -40°C to +85°C and the full industrial temperature range of -40°C to +125°C. The ISL28134 is available in an industry standard pinout SOIC and SOT-23 packages.
Features
- Rail-to-rail inputs and outputs
- CMRR at VCM = 0.1V beyond VS: 135dB, typ
- VOH and VOL: 10mV from VS, typ
- No 1/f noise corner down to 0.1Hz
- Input noise voltage: 10 nV/√Hz at 1kHz
- 0.1Hz to 10Hz noise voltage: 250nVP-P
- Low offset voltage: 2.5µV, Max
- Superb offset drift: 15nV/°C, Max
- Single supply: 2.25V to 6.0V
- Dual supply: ±1.125V to ±3.0V
- Low ICC: 675µA, typ
- Wide bandwidth: 3.5MHz
- Operating temperature range
- Industrial: -40°C to +85°C
- Full industrial: -40°C to +125°C
- Packaging
- Single: SOIC, SOT-23
Comparison
Applications
Design & Development
Software & Tools
Boards & Kits
Evaluation
ISL28130ISENSEV1Z
Active
Low-Side, Bidirectional, Precision Current Sense Op Amp Evaluation Board
The ISL28130ISENSEV1Z evaluation board is designed specifically for low-side bidirectional current sensing for up to 10A of current. The evaluation board uses a 1mΩ current sense resistor that is capable of handling 4W of power dissipation. The ISL28130 low-cost micropower amplifier gains the...
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Evaluation
ISL28133CSENSEV1Z
Active
Low-Side, Bidirectional, Precision Current Sense Op Amp Evaluation Board
The ISL28133CSENSEV1Z evaluation board is designed specifically for low-side bidirectional current sensing up to 10A of current. The evaluation board uses a 1mΩ current sense resistor that is capable of handling 4W of power dissipation.
The ISL28133 is a single micropower, chopper-stabilized...
Evaluation
ISL28133ISENSEV1Z
Active
Low-Side, Bidirectional, Precision Current Sense Op Amp Evaluation Board
The ISL28133ISENSEV1Z evaluation board is designed specifically for low-side bidirectional current sensing up to 10A of current. The evaluation board uses a 1mΩ current sense resistor capable of handling 4W of power dissipation. And, it uses the ISL28133 chopper amplifier in a high-side,...
Recommended Documents:
Evaluation
ISL28134ISENSEV1Z
Active
Low-Side, Bidirectional, Precision Current Sense Op Amp Evaluation Board
The ISL28134ISENSEV1Z evaluation board is designed specifically for low-side bidirectional current sensing up to 10A of current. The evaluation board uses a 1mΩ current sense resistor capable of handling 4W of power dissipation.
The ISL28134 is a single, chopper-stabilized zero-drift operational...
Recommended Documents:
Evaluation
ISL28134SOICEVAL1Z
Active
5V Ultra-Low Noise, Zero-Drift Rail-to-Rail Precision Op Amp Evaluation Board
The ISL28134SOICEVAL1Z evaluation board is designed to evaluate the performance of the ISL28134 low-noise chopper-stabilized op amp. The evaluation board contains the circuitry needed to evaluate the high performance of the ISL28134 amplifier. The ISL28134 chopper-stabilized rail-to-rail...
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Evaluation
RTKA-BDGSTKDBEVKIT1Z
Active
DAQ on a Stick with Honeywell Pressure Sensor Kit
The DAQ on a Stick with Honeywell Pressure Sensor uses Renesas' data acquisition (DAQ) on a stick reference design with Honeywell's NBP Series-Uncompensated/Unamplified 0psi to 30psi basic board mount pressure sensor. This demo shows a complete signal chain solution from the Honeywell sensor,...
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Evaluation
RTKA-BDGSTKEV2Z
Active
DAQ on a Stick Strain Gauge Kit
The DAQ on a Stick Renesas Strain Gauge is one of a series of reference designs highlighting Renesas' precision products with different microcontrollers. This reference design is a self-contained demo showing a complete signal chain solution using Renesas precision parts and a Renesas...
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Evaluation
RTKA-TCSTKEV1Z
Active
DAQ on a Stick Renesas Thermocouple Kit
The DAQ on a Stick Renesas Thermocouple is one of a series of reference designs highlighting Renesas' precision products with different microcontrollers. This reference design is a self-contained demo showing a complete signal chain solution using Renesas precision parts and a Renesas...
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Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Product Options
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Support
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Support Communities
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Potentiostat circuit confusion
Dear Team, I will be using ISL28134 for implementing the circuit given below.The circuit is obtained from here. I did not completely understand the above circuit.My questions are given below. May I know how this circuit maintains the Potential at Reference Electrode and Working Electrode same. Here you ...
May 6, 2025
FAQs
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What dictates the noise performance of the chopper amplifier?
... amplifiers will have much lower 1/f noise when compared to bipolar or non-chopped CMOS amplifiers. The following figure (Figure 21 from the ISL28134 data sheet) is the spot noise of the ISL28134 chopper-stabilized amplifier. Notice that 1/f noise is almost non-existent if compared ...
Jan 1, 1970 -
Do chopper amplifiers have any negative characteristics that users should know about?
... small in the ISL28XXX series of amplifiers, but it is present. Chopper-stabilized amplifiers are usually used for low frequency applications, DC measurement being most common, so this clock residue which is at much higher frequency can easily be filtered out. This FAQ applies to ISL28133, ISL28134, ISL28233, and ISL28433.
Jan 1, 1970 -
Can you explain what a chopper-stabilized amplifier is and what advantages it has over a regular operational amplifier?
... amplifier input stage is modulated to a higher frequency (the chopping frequency) where the filter stage filters it out. Therefore the op amp has very low offset error and low offset drift. Its 1/f noise is also greatly reduced. This FAQ applies to ISL28133, ISL28134, ISL28233, and ISL28433.
Jan 1, 1970