TLC22541 Electronics IC Chip Integrated Circuit IC Components

TLC22541 Electronics Components Integrated Circuit IC Components

Features

Output Swing Includes Both Supply Rails Low Noise . . . 19 nV/√Hz

Typ at f = 1 kHz Low Input Bias Current . . . 1 pA Typ

Fully Specified for Both Single-Supply and Split-Supply

Operation Very Low Power . . . 35 µA Per

Channel Typ Common-Mode Input Voltage Range Includes Negative Rail

Low Input Offset Voltage 850 µV Max at TA = 25°C (TLC225xA)

Macromodel Included Performance

Upgrades for the TS27L2/L4 and TLC27L2/L4 Available in Q–Temp

Automotive HighRel Automotive Applications Configuration

Control / Print Support Qualification to Automotive Standards

Applications

Programmable Voltage Sources

Digitally Controlled Amplifiers/Attenuators

Mobile Communications

Automatic Test Equipment

Process Monitoring and Control

Signal Synthesis

Description

The TLC2252 and TLC2254 are dual and quadruple operational amplifiers from Texas Instruments. Both devices exhibit rail-to-rail output performance for increased dynamic range in single- or split-supply applications. The TLC225x family consumes only 35 µA of supply current per channel. This micropower operation makes them good choices for battery-powered applications.

The noise performance has been dramatically improved over previous generations of CMOS amplifiers. Looking at Figure 1, the TLC225x has a noise level of 19 nV/√Hz at 1kHz; four times lower than competitive micropower solutions.

The TLC225x amplifiers, exhibiting high input impedance and low noise, are excellent for small-signal conditioning for high-impedance sources, such as piezoelectric transducers. Because of the micropower dissipation levels, these devices work well in hand-held monitoring and remote-sensing applications. In addition, the rail-to-rail output feature with single or split supplies makes this family a great choice when interfacing with analog-to-digital converters (ADCs).

For precision applications, the TLC225xA family is available and has a maximum input offset voltage of 850 µV. This family is fully characterized at 5 V and ±5 V. The TLC2252/4 also makes great upgrades to the TLC27L2/L4 or TS27L2/L4 in standard designs.

They offer increased output dynamic range, lower noise voltage, and lower input offset voltage. This enhanced feature set allows them to be used in a wider range of applications. For applications that require higher output drive and wider input voltage ranges, see the TLV2432 and TLV2442 devices. If the design requires single amplifiers, please see the TLV2211/21/31 family.

These devices are single rail-to-rail operational amplifiers in the SOT-23 package. Their small size and low power consumption, make them ideal for high density, battery-powered equipment.