Dual, 8-V, 85-kHz operational amplifier

The TLV2322 and TLV2324 (TLV232x)

operational amplifiers are in a family of devices that have been specifically

designed for use in low-voltage, single-supply applications. This amplifier is

especially useful for ultra-low-power systems that require devices to consume the

absolute minimum of supply currents. Each amplifier is fully functional down to a

minimum supply voltage of 2.7V, and is fully characterized, tested, and specified at

both 3V and 5V power supplies. The common-mode input voltage range includes the

negative rail and extends to within 1V of the positive rail.

These amplifiers are specifically

targeted for use in very low-power, portable, battery-driven applications with the

maximum supply current per operational amplifier specified at only 27µA over the

full temperature range of –40°C to +85°C.

Low-voltage and low-power operation is

possible by using the Texas Instruments silicon-gate LinCMOS™ technology. The LinCMOS technology process also features extremely

high input impedance and ultra-low bias currents making these amplifiers an

excellent choice for interfacing to high-impedance sources such as sensor circuits

or filter applications.

To facilitate the design of small

portable equipment, the TLV232x is made available in a wide range of package

options, including the small-outline and thin-shrink small-outline packages (TSSOP).

The TSSOP package has significantly reduced dimensions compared to a standard,

surface-mount package. The maximum height of only 1.1mm makes this device

particularly attractive when space is critical.

The device inputs and outputs are

designed to withstand –100mA currents without sustaining latch-up. The TLV232x

incorporates internal ESD-protection circuits that prevent functional failures at

voltages up to 2000V as tested under MIL-STD 883C, Method 3015.2. However, exercise

care in handling these devices because exposure to ESD potentially results in the

degradation of device parametric performance.