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MAX5491: Precision-Matched Resistor-Divider in SOT23 Data Sheet (Rev. 3)12/17/2004PDF155K
MAX5491
Precision-Matched Resistor-Divider in SOT23
Ultra-Precision Voltage-Dividers in a SOT23 Keep Drift to 3ppm/°C
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Overview
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
Product Details
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.
Applications
- Automated Test Equipment (ATE)
- Industrial Process Controls
- Instrumentation
- Medical Equipment
- Precision Gain Setting
- Wireless Base Stations
Product Categories
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
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MAX5491 Reliability Data1/12/2023PDF32K
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Design Resources
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PCN-PDN Information
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