TLE2064IDR Precision Quad JFET-Input Op-Amp with 10MHz Bandwidth 45V/µs Slew

Product Specification

TLE2064IDR Precision Quad JFET-Input Op-Amp with 10MHz Bandwidth 45V/µs Slew Rate Low Noise (16nV/√Hz) ±2V to ±20V Supply EMI Hardened & Automotive Grade for High-Speed Signal Conditioning

Features

• 2× Bandwidth (2MHz) of the TL06x and TL03x Operational Amplifiers

• Low supply current: 290μA/Ch (typical)

• On-chip offset voltage trimming for improved DC performance

• High output drive, specified into 100Ω loads

• Lower noise floor than earlier generations of low power BiFETs

Applications

• Full authority digital engine control

• Flight control unit

• Analog input module

Description

The TLE206x series of low-power JFET-input operational amplifiers doubles the bandwidth of the earlier generation TL06x and TL03x BiFET families without significantly increasing power consumption. Texas Instruments Excalibur process also delivers a lower noise floor than the TL06x and TL03x. On-chip Zener trimming of offset voltage yields precision grades for dc-coupled applications. The TL206x devices are pin-compatible with other Texas Instruments BiFETs, in that the devices can be used to double the bandwidth of TL06x and TL03x circuits or to reduce power consumption of TL05x, TL07x, and TL08x circuits by nearly 90%.

BiFET operational amplifiers offer the inherently higher input impedance of the JFET-input transistors, without sacrificing the output drive associated with bipolar amplifiers. These device features are designed for interfacing with high-impedance sensors or low level ac signals. The devices also have inherently better ac response than bipolar or CMOS devices having comparable power consumption. The TLE206x family features a high-output-drive circuit capable of driving 100Ω loads at supplies as low as ±5V. This makes them uniquely suited for driving transformer loads in modems and other applications requiring good ac characteristics, low power, and high output drive.

Because BiFET 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 must be terminated to a virtual ground node at mid-supply. Texas Instruments TLE2426 integrated virtual ground generator is useful when operating BiFET amplifiers from single supplies.

The TLE206x are fully specified at ±15V and ±5V. For operation in low-voltage or single-supply systems, Texas Instruments LinCMOS families of operational amplifiers (TLC- and TLV-prefixes) are recommended. When moving from BiFET to CMOS amplifiers, particular attention should be paid to slew rate and bandwidth requirements and output loading. The Texas Instruments TLV2432 and TLV2442 CMOS operational amplifiers are excellent choices to consider.

INFORMATION

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