MAX4230–MAX4234 High-Output-Drive, 10MHz, 10V/μs, Rail-to-Rail I/O Op Amps with Shutdown in SC70 Pin DescriptionPINBUMPMAX4230 MAX4231SOT23/MAX4232NAMEFUNCTIONSOT23/SOT23/ MAX4233 MAX4234 MAX4231 MAX4233SC70SC70/ThinµMAXTSSOP/SOUCSPUCSPµDFNµMAX 1 1 — — — B1 — IN+ Noninverting Input Negative Supply Input. 2 2 4 4 11 A1 B4 VSS Connect to ground for single- supply operation. 3 3 — — — B2 — IN- Inverting Input 4 4 — — — A2 — OUT Amplifier Output 5 6 8 10 4 A3 B1 VDD Positive Supply Input SHDN, — 5 — 5, 6 — B3 C4, A4 SHDN1, Shutdown Control. Tie to high SHDN2 for normal operation. — — 3 3 3 — C3 IN1+ Noninverting Input to Amplifier 1 — — 2 2 2 — C2 IN1- Inverting Input to Amplifier 1 — — 1 1 1 — C1 OUT1 Amplifier 1 Output — — 5 7 5 — A3 IN2+ Noninverting Input to Amplifier 2 — — 6 8 6 — A2 IN2- Inverting Input to Amplifier 2 — — 7 9 7 — A1 OUT2 Amplifier 2 Output — — — — 10, 12 — — IN3+, N4+ Noninverting Input to Amplifiers 3 — — — — 9, 13 — — IN3-, Inverting Input to Amplifiers 3 IN4- and — — — — 8, 14 — — OUT3, OUT4 Amplifiers 3 and 4 Outputs Detailed Description package power dissipation is not exceeded for any of the Rail-to-Rail Input Stage package types offered. There are some exceptions to this rule, however. The absolute maximum power-dissipation The MAX4230–MAX4234 CMOS operational amplifiers rating of each package should always be verified using have parallel-connected n- and p-channel differential the following equations. The equation below gives an input stages that combine to accept a common-mode approximation of the package power dissipation: range extending to both supply rails. The n-channel stage is active for common-mode input voltages typically I P C(DISS) ≅ RM V S IRMS COSθ greater than (VSS + 1.2V), and the p-channel stage is active for common-mode input voltages typically less than where: (VDD - 1.2V). VRMS = RMS voltage from VDD to VOUT when sourcing Applications Information current and RMS voltage from VOUT to VSS when sinking current. Package Power Dissipation IRMS = RMS current flowing out of or into the op amp and Warning: Due to the high output current drive, this the load. op amp can exceed the absolute maximum power- θ = phase difference between the voltage and the current. dissipation rating. As a general rule, as long as the For resistive loads, COS θ = 1. peak current is less than or equal to 40mA, the maximum www.maximintegrated.com Maxim Integrated │ 8