Single, 30-V, 3.3-MHz, high slew rate (20-V/µs), 0.8-mV offset voltage, In to V+, JFET-input op amp

The TL05x series of FET-Input operational

amplifiers offers improved dc and ac characteristics over

the TL07x and TL08x families of FET operational amplifiers.

Texas Instruments

improved FET process and optimized designs also yield

improved bandwidth and slew rate without increased power

consumption. The TL05x devices are pin-compatible with the

TL07x and TL08x and can be used to upgrade existing circuits

or for excellent performance in new designs.

FET operational amplifiers offer the inherently higher

input impedance of the FET-Input transistors, without

sacrificing the output drive associated with bipolar

amplifiers. This makes them better designed for interfacing

with high-impedance sensors or very low-level ac signals.

The TL05x family are designed to

offer higher precision and better ac response than the

TL08x, with the low noise floor of the TL07x. Designers

requiring significantly faster ac response can consider the

Excalibur TLE208x and TLE207x families of FET operational

amplifiers.

Because FET operational amplifiers are designed for use

with dual power supplies, care must be taken to observe

common-mode input voltage limits and output swing when

operating from a single supply. DC biasing of the input

signal is required, and loads terminated to a virtual-ground

node at mid-supply. Texas Instruments TLE2426 integrated

virtual ground generator is useful when operating FET

amplifiers from single supplies.

The TL05x are fully specified at ±15V and ±5V. For

operation in low-voltage and/or single-supply systems, Texas

Instruments LinCMOS families of operational amplifiers

(TLC-prefix) are recommended. When moving from FET to CMOS

amplifiers, particular attention to be paid to the slew rate

and bandwidth requirements, and also the output loading.