Features and Benefits
- Resistance Ratios from 1:1 to 100:1
- Custom Ratios Available Upon Request
- Tight Initial Ratio Accuracy
- 0.035% (MAX5490A)
- 0.05% (MAX5490B)
- 0.1% (MAX5490C)
- Low 1ppm/°C (typ) Resistor-Ratio-Drift
- Up to 80V Operating Voltage Across Sum of R1 and R2
- Tiny 3-Pin SOT23 Package
The MAX5490 precision resistor-divider consists of two accurately matched resistors with access to the ends and center of the divider. This device offers excellent resistance matching of 0.035% (A grade), 0.05% (B grade), and 0.1% (C grade). The MAX5490 provides an extremely low resistance-ratio temperature drift of 1ppm/°C (typ) over -55°C to +125°C, and has an end-to-end resistance of 100kΩ. Resistance ratios from 1:1 to 100:1 are available. Five standard ratios are available (see Table 1 in the full data sheet), and custom ratios are also available upon request. The MAX5490 is ideal for precision gain-setting applications where tight resistance matching and low temperature drift are necessary.
The MAX5490 is available in a space-saving 3-pin SOT23 package, and is guaranteed over the military -55°C to +125°C temperature range.
- Automated Test Equipment (ATE)
- Industrial Process Controls
- Medical Equipment
- Precision Gain Setting
- Wireless Base Stations
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
MAX5490 Reliability Data1/12/2023
Challenge the Conventional - Make Unipolar DACs Bipolar3/10/2015
The Zero-Transistor IC, a New Plateau in IC Design4/1/2013
A Power Engineer: the Super Hero in a Design?11/26/2012
Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface3/8/2011
Minimize Voltage Offsets in Precision Amplifiers9/28/2009
Saving Energy: Little Things Mean a Lot7/1/2009
Rail Splitter, from Abraham Lincoln to Virtual Ground12/19/2008
MAX5490 Companion Parts
Recommended Related Parts
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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