TI TLE2062IDR

The TLE206x series low-power JFET-input op amps double the bandwidth of the earlier TLOGx and TL03x BiFET series without significantly increasing power dissipation. Texas Instruments' Excalibur process also provides a lower noise floor than the TLOGx and TL03x. On-chip zener-trimmed offset voltage delivers precision-grade performance for DC-coupled applications. TLE206x devices are pin-compatible with other Texas Instruments BiFET op amps; they can be used to double the bandwidth of TL06x and TL03x circuits, or reduce the power consumption of TL05x, TL07x, and TLO8x circuits by nearly 90%.

BiFET op amps offer the inherently high input impedance of JFET input transistors without sacrificing the output drive capability of bipolar amplifiers. This makes them better suited for interfacing with high-impedance sensors or low-level AC signals. They also provide superior AC response compared to bipolar or CMOS devices with comparable power consumption. The TLE206x series features a high output drive circuit capable of driving 100Ω loads from supplies as low as ±5V. This makes them particularly well-suited for driving transformer loads in applications requiring good AC characteristics, low power consumption, and high output drive, such as modems.

Since BiFET op amps are designed for dual-supply operation, attention must be paid to common-mode input voltage limits and output swing when operating from a single supply. The input signal requires DC biasing, and the load should be terminated to a virtual ground node at the midpoint of the supply. Texas Instruments' TLE2426 integrated virtual ground generator is especially useful when operating BiFET amplifiers from a single supply.