MAX5491: Precision-Matched Resistor-Divider in SOT23 Data Sheet (Rev. 3)12/17/2004155K
Features and Benefits
- Resistance Ratios from 1:1 to 30:1
- Custom Ratios Available Upon Request
- ±2kV Human Body Model ESD Protection
- Tight Initial Ratio Accuracy
- 0.035% (MAX5491A)
- 0.05% (MAX5491B)
- 0.1% (MAX5491C)
- Low 2ppm/°C Resistor-Ratio-Drift
- Up to 50V Operating Voltage Across Sum of R1 and R2
- Tiny 3-Pin SOT23 Package
The MAX5491 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 MAX5491 includes an extremely low resistance-ratio temperature drift of 2ppm/°C over -40°C to +85°C, and has an end-to-end resistance of 30kΩ. Resistance ratios from 1:1 to 30:1 are available. Ten standard ratios are available (see Table 1), and custom ratios are also available upon request. To enhance device and system robustness, the MAX5491 also features ±2kV Human Body Model electrostatic discharge (ESD) protection to ensure against real-world ESD events. The MAX5491 is ideal for precision gain-setting applications where tight resistance matching and low temperature drift are necessary.
The MAX5491 is available in a space-saving 3-pin SOT23 package, and is guaranteed over the extended -40°C to +85°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
MAX5491 Reliability Data1/12/202332K
ADC Input Translator11/2/2009
3V DACs Used in ±10V Applications2/28/2023
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
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.
Support & Discussions
Sample & Buy
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Please see the latest communication from our CCO regarding lead times.
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.