Texas Instruments

Low Noise: 3nV/√Hz Wide Bandwidth: OPA227: 8 MHz, 2.3 V/µs OPA228: 33 MHz, 10 V/µs Settling Time: 5 µs (Significant Improvement Over OP-27) High CMRR: 138 dB High Open-loop Gain: 160 dB Low Input Bias Current: 10 nA Maximum Low Offset Voltage: 75 µV Maximum Wide Supply Range: ±2.5 V to ±18 V OPA227 Replaces OP-27, LT1007, MAX427 OPA228 Replaces OP-37, LT1037, MAX437 Single, Dual, and Quad Versions