MAX4289 5 19-2023 Rev 0 1/02 1.0V Micropower, SOT23, Operational Amplifier General Description Features The MAX4289 micropower, operational amplifier is opti- Ultra-Low Voltage Operation: Guaranteed mized for ultra-low supply voltage operation. The ampli- Specifications from 1.0V to 5.5V fier consumes only 9A of quiescent supply current and is fully specified for operation from a single 1.0V to 5.5V Input Common-Mode Range: 0 to (V - 0.2V) CC power supply. This ultra-low voltage operation together Ultra-Low Power Consumption: 9A Supply with the low quiescent current consumption make the MAX4289 ideal for use in battery-powered systems Current (typ) operated from as little as a single alkaline cell. The Optimized for Operation from Single-Cell MAX4289 also features a wide input common-mode Battery-Powered Systems range that includes the ground, and an output voltage swing that is virtually Rail-to-Rail , allowing almost all of Compatible with 3.0V and 5.0V Single-Supply the power supply to be used for signal voltage. Systems The low input offset voltage and low input bias current specifications along with the high open-loop gain make Low Offset Voltage: 0.2mV the MAX4289 well-suited to applications requiring a Low Input Bias Current: 5nA high degree of precision. High Open-Loop Voltage Gain: 90dB The MAX4289 is available in a tiny 6-pin SOT23 pack- age. All specifications are guaranteed over the extend- Rail-to-Rail Output Stage Drives 5k Load ed temperature range of -40C to +85C. No Output Phase Reversal for Overdriven Inputs Applications Available in a Tiny 6-Pin SOT23 (3mm 3mm) Single-Cell Systems Strain Gauges Portable Electronic Cellular Phones Equipment Notebook Computers Ordering Information Battery-Powered Sensor Amplifiers PIN- TOP PART TEMP RANGE Instrumentation PACKAGE MARK Portable Communication Hearing Aids Using Zinc MAX4289EUT-T -40C to +85C 6 SOT23-6 AARX Devices Air Battery MAX4289ESA -40C to +85C 8 SO Typical Operating Characteristic Pin Configurations POWER-SUPPLY REJECTION RATIO TOP VIEW vs. SUPPLY VOLTAGE 90 T = +85C A OUT 16V N.C. 1 8 N.C. CC 80 IN- 2 7 V CC MAX4289 MAX4289 N.C. GND 2 IN+ 3 6 OUT T = -40C 70 A GND 4 5 N.C. IN+34 IN- T = +25C A 60 SO-8 SOT23-6 50 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 SUPPLY VOLTAGE (V) Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. PSRR (dB)1.0V Micropower, SOT23, Operational Amplifier ABSOLUTE MAXIMUM RATINGS Power-Supply Voltage (V to GND).......................................6V Operating Temperature Range ...........................-40C to +85C CC Input Voltage (IN+ or IN-)...........................(V + 0.3V) to -0.3V Junction Temperature......................................................+150C CC Input Current (IN+ or IN-)....................................................20mA Storage Temperature Range .............................-65C to +150C Output Short-Circuit Duration to V or GND............Continuous Lead Temperature (soldering, 10s) .................................+300C CC Continuous Power Dissipation (T = +70C) A 6-Pin SOT23 (derate 8.7mW/C above +70C).............696mW 8-Pin SO (derate 5.88mW/C above +70C).................471mW Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = 3V, V = 0, V = V /2, R tied to V /2, T = T to T , unless otherwise noted. Typical values are at T = +25C.) CC CM OUT CC L CC A MIN MAX A (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS T = +25C 1.0 5.5 A Inferred from the Supply Voltage Range V V CC PSRR tests T = -40C to +85C 1.2 5.5 A V = 1.0V, T = +25C914 CC A Quiescent Supply Current I V = 3.0V 12 25 A CC CC V = 5.5V 18 40 CC T = +25C 0.2 2.0 A Input Offset Voltage V mV OS T = T to T 6.0 A MIN MAX Input Bias Current I 5 15 nA B Input Offset Current I 0.5 2.0 nA OS Differential Input Resistance R 50 M IN V = 1.2V 0 V - 0.2 CC CC Input Common-Mode Voltage Inferred from V V CM Range CMRR test V = 3.0V 0 V - 0.8 CC CC V = 1.2V, 0 V - 0.2V 57 CC CC Common-Mode Rejection Ratio CMRR V = 1.2V, 0 V V - 0.8V 57 85 dB CC CM CC V = 3.0V, 0 V V - 0.8V 57 110 CC CM CC 1.0V V 5.5V, T = +25C5475 CC A Power-Supply Rejection Ratio PSRR dB 1.2V V 5.5V, T = -40C to +85C58 75 CC A R = 100k (50mV V V - 50mV) 110 L OUT CC Large-Signal Voltage Gain A dB VOL R = 5k (100mV V V - 100mV) 80 90 L OUT CC R = 100k 0.2 10 Specified as L Output Voltage Swing High V mV OH V - V CC OH R = 5k 740 L R = 100k 0.4 10 L Output Voltage Swing Low V Specified as V mV OL OL R = 5k 740 L 2 MAX4289