General Description

The MAX9000 family features the combination of a high speed operational amplifier, a 185ns comparator, and a precision 1.230V reference. These devices operate from a single +2.5V to +5.5V supply and draw less than 500µA of quiescent current. The MAX9001/MAX9004 feature a shutdown mode that reduces supply current to 2µA and puts the outputs into a high-impedance state, making them ideal for portable and battery-powered applications.

Features

♦ Op Amp + Comparator + Reference in

   Space-Saving µMAX Package

♦ +2.5V to +5.5V Single-Supply Voltage Range

♦ 340µA Supply Current (MAX9002/MAX9005)

♦ Unity-Gain Stable (GBW = 1.25MHz) and

   Decompensated (AV ≥ 10V/V, GBW = 8MHz) Options

♦ Op-Amp/Comparator Outputs Swing Rail-to-Rail

♦ Ground-Sensing Inputs for Both Op Amp and

   Comparator

♦ Op Amp Stable with Capacitive Loads up to 250pF

♦ Internal ±2mV Comparator Hysteresis

♦ Fast 185ns Propagation-Delay Comparator

♦ No Phase Reversal for Overdriven Inputs

   (Both Op Amp and Comparator)

♦ Internal 1.230V Precision Reference (MAX9000/

   MAX9001/MAX9003/MAX9004)

   ±1 Initial Accuracy

   Low 8ppm/°C Temperature Drift

   Sink or Source up to 1mA

   Stable for Capacitive Loads up to 100nF

Applications

   Single-Supply Zero- Photodiode Preamps

   Crossing Detector Smart Card Readers

   Instruments, Terminals, Infrared Receivers

   and Bar-Code Readers for Remote Controls

   Keyless Entry Sensor Signal Detection