Not Recommended for New Designs The MAX495 was manufactured for Maxim by an outside wafer foundry using a process that is no longer available. It is not recommended for new designs. A Maxim replacement or an industry second-source may be available. The data sheet remains available for existing users. The other parts on the following data sheet are not affected. For further information, please see the QuickView data sheet for this part or contact technical support for assistance. MAX492/MAX494/MAX495 19-0265 Rev 2 9/96 Single/Dual/Quad, Micropower, Single-Supply Rail-to-Rail Op Amps General Description Features Low-Voltage Single-Supply Operation (+2.7V to +6V) The dual MAX492, quad MAX494, and single MAX495 operational amplifiers combine excellent DC accuracy Rail-to-Rail Input Common-Mode Voltage Range with rail-to-rail operation at the input and output. Since Rail-to-Rail Output Swing the common-mode voltage extends from V to V , CC EE 500kHz Gain-Bandwidth Product the devices can operate from either a single supply Unity-Gain Stable (+2.7V to +6V) or split supplies (1.35V to 3V). Each op amp requires less than 150A supply current. Even 150A Max Quiescent Current per Op Amp with this low current, the op amps are capable of driving No Phase Reversal for Overdriven Inputs a 1k load, and the input referred voltage noise is only 200V Offset Voltage 25nV/Hz. In addition, these op amps can drive loads in High Voltage Gain (108dB) excess of 1nF. High CMRR (90dB) and PSRR (110dB) The precision performance of the MAX492/MAX494/ Drives 1k Load MAX495, combined with their wide input and output Drives Large Capacitive Loads dynamic range, low-voltage single-supply operation, and very low supply current, makes them an ideal choice for MAX495 Available in MAX Package8-Pin SO battery-operated equipment and other low-voltage appli- cations. The MAX492/MAX494/MAX495 are available in Ordering Information DIP and SO packages in the industry-standard op-amp pin configurations. The MAX495 is also available in the PART TEMP. RANGE PIN-PACKAGE smallest 8-pin SO: the MAX package. MAX492CPA 0C to +70C 8 Plastic DIP MAX492CSA 0C to +70C 8 SO Applications MAX492C/D 0C to +70C Dice* Portable Equipment MAX492EPA -40C to +85C 8 Plastic DIP Battery-Powered Instruments MAX492ESA -40C to +85C 8 SO Data Acquisition MAX492MJA -55C to +125C 8 CERDIP Signal Conditioning Ordering Information continued at end of data sheet. Low-Voltage Applications *Dice are specified at TA = +25C, DC parameters only. Typical Operating Circuit Pin Configurations TOP VIEW +5V OUT1 1 8 V CC 1 IN1- OUT2 2 V 7 DD IN1+ IN2- 3 6 10k MAX187 IN2+ V EE 4 5 MAX492 2 (ADC) 7 6 DOUT 6 2 8 SERIAL DIP/SO AIN SCLK INTERFACE MAX495 7 3 CS ANALOG 4 INPUT 3 NULL 1 8 N.C. SHDN 4 MAX495 10k IN1- V REF 4.096V 2 7 CC GND OUT IN1+ 3 6 5 V NULL EE 4 5 DIP/SO/MAX INPUT SIGNAL CONDITIONING FOR LOW-VOLTAGE ADC Pin Configurations continued at end of data sheet. Maxim Integrated Products 1 For free samples & the latest literature: