OPA338

OPA337, OPA2337 OPA338, OPA2338 SBOS077B − JUNE 1997 − REVISED MARCH 2005 MicroSIZE, Single-Supply CMOS OPERATIONAL AMPLIFIERS MicroAmplifierE Series FEATURES D MicroSIZE PACKAGES: SOT23-5, SOT23-8 D SINGLE-SUPPLY OPERATION D RAIL-TO-RAIL OUTPUT SWING D FET-INPUT: IB = 10pA max D HIGH SPEED: OPA337: 3MHz, 1.2V/µs (G = 1) OPA338: 12.5MHz, 4.6V/µs (G = 5) D OPERATION FROM 2.5V to 5.5V D HIGH OPEN-LOOP GAIN: 120dB D LOW QUIESCENT CURRENT: 525µA/amp D SINGLE AND DUAL VERSIONS APPLICATIONS D BATTERY-POWERED INSTRUMENTS D PHOTODIODE PRE-AMPS D MEDICAL INSTRUMENTS D TEST EQUIPMENT D AUDIO SYSTEMS D DRIVING ADCs D CONSUMER PRODUCTS SPICE model available at www.ti.com. DESCRIPTION The OPA337 and OPA338 series rail-to-rail output CMOS operational amplifiers are designed for low cost and miniature applications. Packaged in the SOT23-8, the OPA2337EA and OPA2338EA are Texas Instruments’ smallest dual op amps. At 1/4 the size of a conventional SO-8 surface-mount, they are ideal for space-sensitive applications. Utilizing advanced CMOS technology, the OPA337 and OPA338 op amps provide low bias current, high-speed operation, high open-loop gain, and rail-to-rail output swing. They operate on a single supply with operation as low as 2.5V while drawing only 525µA quiescent current. In addition, the input common-mode voltage range includes ground—ideal for single-supply operation. The OPA337 series is unity-gain stable. The OPA338 series is optimized for gains greater than or equal to 5. The...