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.
Key Features
Applications/Uses
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
Notes: *This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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