OPA726

OPA725, OPA2725 OPA726, OPA2726 SBOS278B − SEPTEMBER 2003 − REVISED JANUARY 2004 Very Low Noise, High-Speed, 12V CMOS Operational Amplifier FEATURES D D D D D D D D D D D D D D D D D D D D BANDWIDTH: 20MHz SLEW RATE: 30V/µs FAST 16-BIT SETTLING TIME LOW NOISE: 6nV/√Hz (typ) at 100kHz EXCELLENT CMRR, PSRR, and AOL RAIL-TO-RAIL OUTPUT CM RANGE INCLUDES GND THD+N: 0.0003% (typ) at 1kHz QUIESCENT CURRENT: 5.5mA/ch (max) SUPPLY VOLTAGE: 4V to 12V SHUTDOWN MODE (OPAx726): 6µA/ch DESCRIPTION The OPA725 and OPA726 series op amps use a state-of-the-art 12V analog CMOS process, and combine outstanding ac performance with low bias current and excellent CMRR, PSRR, and AOL. The 20MHz Gain-Bandwidth (GBW) Product is achieved by using a proprietary and patent-pending output stage design. These characteristics allow excellent 16-bit settling times for driving 16-bit Analog-to-Digital converters (ADCs). Excellent ac characteristics, such as 20MHz GBW, 30V/µs slew rate and 0.0003% THD+N make the OPA725 and OPA726 well-suited for communication, high-end audio, and active filter applications. With a bias current of less than 200pA, they are well-suited for use as transimpedance (I/V-conversion) amplifiers for monitoring optical power in ONET applications. The OPA725 and OPA726 op amps can be used in single-supply applications from 4V up to 12V, or dual-supply from ±2V to ±6V. The output swings to within 150mV of the rails, maximizing dynamic range. The shutdown versions (OPAx726) reduce the q...