MAX5490

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


Application

Industrial Process Control
Instrumentation
Precision Gain Setting
Medical Equipment
Automatic Test Equipment
Base Stations


Pinout




Specifications

Voltage Between P1 and P2.................................................100V
Maximum Current into Any Pin ......................................±1.00mA
Continuous Power Dissipation (T_A = +70°C)
   3-Pin SOT23 (derate 7.1mW/°C above +70°C).........571.4mW
   3-Pin SOT23 (_J-A) .....................................................141°C/W
Operating Temperature Range ..........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range ...........................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C


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-toend resistance of 100k. 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.

The MAX5490 is available in a space-saving 3-pin SOT23 package, and is guaranteed over the extended -40°C to +85°C temperature range.