19-1343; Rev 3; 9/06 Single/Dual/Quad, +1.8V/10µA, SOT23,Beyond-the-Rails Op AmpsMAX4240–MAX4244General DescriptionFeatures The MAX4240–MAX4244 family of micropower op amps ♦ Ultra-Low-Voltage Operation: operate from a single +1.8V to +5.5V supply or dual Guaranteed Down to +1.8V ±0.9V to ±2.75V supplies and have Beyond-the-Rails™ Typical Operation to +1.5V inputs and rail-to-rail output capabilities. These ampli- fiers provide a 90kHz gain-bandwidth product while ♦ Ultra-Low Power Consumption: using only 10µA of supply current per amplifier. The 10µA Supply Current per Amplifier MAX4241/MAX4243 have a low-power shutdown mode 1µA Shutdown Mode (MAX4241/MAX4243) that reduces supply current to less than 1µA and forces Up to 200,000 Hours Operation from Two AA the output into a high-impedance state. Although the Alkaline Cells minimum operating voltage is specified at +1.8V, these devices typically operate down to +1.5V. The combina- ♦ Beyond-the-Rails Input Common-Mode Range tion of ultra-low-voltage operation, beyond-the-rails ♦ Outputs Swing Rail-to-Rail inputs, rail-to-rail outputs, and ultra-low power con- sumption makes these devices ideal for any portable/ ♦ No Phase Reversal for Overdriven Inputs two-cell battery-powered system. ♦ 200µV Input Offset Voltage These amplifiers have an input common-mode range ♦ Unity-Gain Stable for Capacitive Loads up to 200pF that extends 200mV beyond each rail, and their out- puts typically swing to within 9mV of the rails with a ♦ 90kHz Gain-Bandwidth Product 100kΩ load. Beyond-the-rails input and rail-to-rail out- ♦ Available in Space-Saving 5-Pin SOT23 and put characteristics allow the full power-supply voltage to be used for signal range. The combination of low 8-Pin µMAX® Packages input offset voltage, low input bias current, and high Ordering Information open-loop gain makes them suitable for low-power/low- voltage precision applications. PIN-TOPPARTTEMP RANGE The MAX4240 is offered in a space-saving 5-pin PACKAGEMARK SOT23 package. All specifications are guaranteed MAX4240 EUK-T -40°C to +85°C 5 SOT23-5 ACCS over the -40°C to +85°C extended temperature range. MAX4241 EUA -40°C to +85°C 8 µMAX — Applications MAX4241ESA -40°C to +85°C 8 SO — Two-Cell Battery- Strain Gauges MAX4242 EUA -40°C to +85°C 8 µMAX — Powered Systems Sensor Amplifiers MAX4242ESA -40°C to +85°C 8 SO — Portable/Battery-Powered Cellular Phones MAX4243 EUB -40°C to +85°C 10 µMAX — Electronic Equipment Notebook Computers MAX4243ESD -40°C to +85°C 14 SO — Digital Scales PDAs MAX4244 ESD -40°C to +85°C 14 SO — Pin ConfigurationsSelector Guide TOP VIEW NO. OFPARTSHUTDOWNPIN-PACKAGEAMPS MAX4240 1 — 5-pin SOT23 OUT 1 5 VCC MAX4241 1 Yes 8-pin µMAX/SO MAX4240 MAX4242 2 — 8-pin µMAX/SO VEE 2 10-pin µMAX, MAX4243 2 Yes 14-pin SO IN+ 3 4 IN- MAX4244 4 — 14-pin SO Beyond-the-Rails is a trademark and µMAX is a registered SOT23-5 trademark of Maxim Integrated Products, Inc. Pin Configurations continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products1For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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