General Description

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 -40°C to +85°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), 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.

Features

♦ 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