Overview
Description
The ISL28133 is a single micropower, chopper stabilized operational amplifier that is optimized for single supply operation from 1.8V to 5.5V. Its low supply current of 18µA and wide input range enable the ISL28133 to be an excellent general purpose op amp for a range of applications. The ISL28133 is ideal for handheld devices that operate off 2AA or single Li-ion batteries. The ISL28133 is available in the 5 Ld SOT-23, the 5 Ld SC70 and the 6 Ld 1. 6mmx1. 6mm µTDFN packages. All devices operate over the extended temperature range of -40°C to +125°C.
Features
- Low input offset voltage: 8µV, Max.
- Low offset TC: 0.075µV/°C, Max
- Input bias current: 300pA, Max.
- Quiescent current: 18µA, Typ.
- Wide supply range: 1.8V to 5.5V
- Low noise (0.01Hz to 10Hz): 1.1µVP-P, Typ.
- Rail-to-rail inputs and output
- Operating temperature range: -40°C to +125°C
Comparison
Applications
Design & Development
Boards & Kits
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.
Support
Support Communities
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Support Communities
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Topband want Renesas to provide ISL28133FEZ-T7 detail IC marking description. Please provide it.
Topband want Renesas to provide ISL28133FEZ-T7 detail IC marking description. Please provide it.
Sep 11, 2024
FAQs
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What dictates the noise performance of the chopper amplifier?
... non-existent if compared to a bipolar op amp or a standard (non-chopped) CMOS op amp. Figure 13 illustrates the spot noise of the ISL28133. Notice that the low frequency noise is much higher than the noise in the ISL28134. The ISL28133 uses much less current than the ISL28134 ...
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